二进制安装Kubernetes（k8s）v1.35.0

介绍

https://github.com/cby-chen/Kubernetes 开源不易，帮忙点个star，谢谢了

支持IPv4+IPv6双栈。本文是精简文档，删除了注释以及一些基础的内容，社交媒体超出字数限制，完整版见：

项目地址：https://github.com/cby-chen/Kubernetes

1.环境

主机名称 IP地址 说明 软件
192.168.1.60 外网节点 下载各种所需安装包
Master01 192.168.1.31 master节点 kube-apiserver、kube-controller-manager、kube-scheduler、etcd、
kubelet、kube-proxy、nfs-client、haproxy、keepalived、nginx
Master02 192.168.1.32 master节点 kube-apiserver、kube-controller-manager、kube-scheduler、etcd、
kubelet、kube-proxy、nfs-client、haproxy、keepalived、nginx
Master03 192.168.1.33 master节点 kube-apiserver、kube-controller-manager、kube-scheduler、etcd、
kubelet、kube-proxy、nfs-client、haproxy、keepalived、nginx
Node01 192.168.1.34 node节点 kubelet、kube-proxy、nfs-client、nginx
Node02 192.168.1.35 node节点 kubelet、kube-proxy、nfs-client、nginx
192.168.1.36 VIP

详细版本

软件 版本
cni_plugins_version v1.9.0
cri_containerd_cni_version 2.2.1
crictl_version v1.35.0
cri_dockerd_version 0.3.21
etcd_version v3.6.7
cfssl_version 1.6.5
kubernetes_server_version 1.35.0
docker_version 29.1.3
runc_version 1.4.0
kernel_version 6.16.4
helm_version 4.0.4
nginx_version 1.29.4

网段

IPv4

物理主机：192.168.1.0/24

service：10.96.0.0/12

pod：172.16.0.0/12

IPv6

物理主机：2408:822a:732:5ce1::1001/64

物理主机：fc00::31/8

service：fd00:1111::/112

pod：fc00:2222::/112

安装包已经整理好：https://github.com/cby-chen/Kubernetes/releases/download/v1.35.0/kubernetes-v1.35.0.tar

1.1.k8s基础系统环境配置

1.2.配置IP

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详见完整版 https://github.com/cby-chen/Kubernetes

1.3.设置主机名

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hostnamectl set-hostname k8s-master01
hostnamectl set-hostname k8s-master02
hostnamectl set-hostname k8s-master03
hostnamectl set-hostname k8s-node01
hostnamectl set-hostname k8s-node02

1.4.配置yum源

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详见完整版 https://github.com/cby-chen/Kubernetes

1.5.安装一些必备工具

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# 对于 Ubuntu
apt update && apt upgrade -y && apt install -y wget psmisc vim net-tools nfs-kernel-server telnet lvm2 git tar curl

# 对于 CentOS 7
yum update -y && yum -y install  wget psmisc vim net-tools nfs-utils telnet yum-utils device-mapper-persistent-data lvm2 git tar curl

# 对于 CentOS 8
yum update -y && yum -y install wget psmisc vim net-tools nfs-utils telnet yum-utils device-mapper-persistent-data lvm2 git network-scripts tar curl

# 对于 CentOS 9
yum update -y && yum -y install wget psmisc vim net-tools nfs-utils telnet yum-utils device-mapper-persistent-data lvm2 git tar curl

1.5.1 下载离线所需文件(可选)

在互联网服务器上安装一个一模一样的系统进行下载所需包

CentOS7
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详见完整版 https://github.com/cby-chen/Kubernetes
CentOS8
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详见完整版 https://github.com/cby-chen/Kubernetes
CentOS9
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详见完整版 https://github.com/cby-chen/Kubernetes
Ubuntu 下载包和依赖
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详见完整版 https://github.com/cby-chen/Kubernetes

1.6.选择性下载需要工具

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#!/bin/bash

# 查看版本地址：
# 
# https://github.com/containernetworking/plugins/releases/
# https://github.com/containerd/containerd/releases/
# https://github.com/kubernetes-sigs/cri-tools/releases/
# https://github.com/Mirantis/cri-dockerd/releases/
# https://github.com/etcd-io/etcd/releases/
# https://github.com/cloudflare/cfssl/releases/
# https://github.com/kubernetes/kubernetes/tree/master/CHANGELOG
# https://download.docker.com/linux/static/stable/x86_64/
# https://github.com/opencontainers/runc/releases/
# https://github.com/helm/helm/tags
# http://nginx.org/download/

# Version numbers
cni_plugins_version='v1.9.0'
cri_containerd_cni_version='2.2.1'
crictl_version='v1.35.0'
cri_dockerd_version='0.3.21'
etcd_version='v3.6.7'
cfssl_version='1.6.5'
kubernetes_server_version='1.35.0'
docker_version='29.1.3'
runc_version='1.4.0'
kernel_version='5.4.278'
helm_version='4.0.4'
nginx_version='1.29.4'

# URLs 
base_url='https://github.com'
kernel_url="http://mirrors.tuna.tsinghua.edu.cn/elrepo/kernel/el7/x86_64/RPMS/kernel-lt-${kernel_version}-1.el7.elrepo.x86_64.rpm"
runc_url="${base_url}/opencontainers/runc/releases/download/v${runc_version}/runc.amd64"
docker_url="https://mirrors.ustc.edu.cn/docker-ce/linux/static/stable/x86_64/docker-${docker_version}.tgz"
cni_plugins_url="${base_url}/containernetworking/plugins/releases/download/${cni_plugins_version}/cni-plugins-linux-amd64-${cni_plugins_version}.tgz"
cri_containerd_cni_url="${base_url}/containerd/containerd/releases/download/v${cri_containerd_cni_version}/containerd-${cri_containerd_cni_version}-linux-amd64.tar.gz"
crictl_url="${base_url}/kubernetes-sigs/cri-tools/releases/download/${crictl_version}/crictl-${crictl_version}-linux-amd64.tar.gz"
cri_dockerd_url="${base_url}/Mirantis/cri-dockerd/releases/download/v${cri_dockerd_version}/cri-dockerd-${cri_dockerd_version}.amd64.tgz"
etcd_url="${base_url}/etcd-io/etcd/releases/download/${etcd_version}/etcd-${etcd_version}-linux-amd64.tar.gz"
cfssl_url="${base_url}/cloudflare/cfssl/releases/download/v${cfssl_version}/cfssl_${cfssl_version}_linux_amd64"
cfssljson_url="${base_url}/cloudflare/cfssl/releases/download/v${cfssl_version}/cfssljson_${cfssl_version}_linux_amd64"
helm_url="https://mirrors.huaweicloud.com/helm/v${helm_version}/helm-v${helm_version}-linux-amd64.tar.gz"
kubernetes_server_url="https://cdn.dl.k8s.io/release/v${kubernetes_server_version}/kubernetes-server-linux-amd64.tar.gz"
nginx_url="http://nginx.org/download/nginx-${nginx_version}.tar.gz"

# Download packages
packages=(
  # $kernel_url
  $runc_url
  $docker_url
  $cni_plugins_url
  $cri_containerd_cni_url
  $crictl_url
  $cri_dockerd_url
  $etcd_url
  $cfssl_url
  $cfssljson_url
  $helm_url
  $kubernetes_server_url
  $nginx_url
)

for package_url in "${packages[@]}"; do
  filename=$(basename "$package_url")
  if curl --parallel --parallel-immediate -k -L -C - -o "$filename" "$package_url"; then
    echo "Downloaded $filename"
  else
    echo "Failed to download $filename"
    exit 1
  fi
done

1.7.关闭防火墙

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# Ubuntu忽略，CentOS执行
systemctl disable --now firewalld

1.8.关闭SELinux

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# Ubuntu忽略，CentOS执行
setenforce 0
sed -i 's#SELINUX=enforcing#SELINUX=disabled#g' /etc/selinux/config

1.9.关闭交换分区

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sed -ri 's/.*swap.*/#&/' /etc/fstab
swapoff -a && sysctl -w vm.swappiness=0

cat /etc/fstab
# /dev/mapper/centos-swap swap                    swap    defaults        0 0

1.10.网络配置（俩种方式二选一）

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# Ubuntu忽略，CentOS执行，CentOS9不支持方式一

# 方式一
# systemctl disable --now NetworkManager
# systemctl start network && systemctl enable network

# 方式二
cat > /etc/NetworkManager/conf.d/calico.conf << EOF 
[keyfile]
unmanaged-devices=interface-name:cali*;interface-name:tunl*
EOF
systemctl restart NetworkManager

1.11.进行时间同步

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# 服务端
# apt install chrony -y
yum install chrony -y
cat > /etc/chrony.conf << EOF 
pool ntp.aliyun.com iburst
driftfile /var/lib/chrony/drift
makestep 1.0 3
rtcsync
allow 192.168.1.0/24
local stratum 10
keyfile /etc/chrony.keys
leapsectz right/UTC
logdir /var/log/chrony
EOF

systemctl restart chronyd ; systemctl enable chronyd

# 客户端
# apt install chrony -y
yum install chrony -y
cat > /etc/chrony.conf << EOF 
pool 192.168.1.31 iburst
driftfile /var/lib/chrony/drift
makestep 1.0 3
rtcsync
keyfile /etc/chrony.keys
leapsectz right/UTC
logdir /var/log/chrony
EOF

systemctl restart chronyd ; systemctl enable chronyd

#使用客户端进行验证
chronyc sources -v

1.12.配置ulimit

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ulimit -SHn 65535
cat >> /etc/security/limits.conf <<EOF
* soft nofile 655360
* hard nofile 131072
* soft nproc 655350
* hard nproc 655350
* seft memlock unlimited
* hard memlock unlimitedd
EOF

1.13.配置免密登录

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# apt install -y sshpass
yum install -y sshpass
ssh-keygen -f /root/.ssh/id_rsa -P ''
export IP="192.168.1.31 192.168.1.32 192.168.1.33 192.168.1.34 192.168.1.35"
export SSHPASS=123123
for HOST in $IP;do
     sshpass -e ssh-copy-id -o StrictHostKeyChecking=no $HOST
done

1.14.添加启用源

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# Ubuntu忽略，CentOS执行

# 为 RHEL-9或 CentOS-9配置源
yum install https://www.elrepo.org/elrepo-release-9.el9.elrepo.noarch.rpm -y 
sed -i "s@mirrorlist@#mirrorlist@g" /etc/yum.repos.d/elrepo.repo 
sed -i "s@elrepo.org/linux@mirrors.tuna.tsinghua.edu.cn/elrepo@g" /etc/yum.repos.d/elrepo.repo 

# 为 RHEL-8或 CentOS-8配置源
yum install https://www.elrepo.org/elrepo-release-8.el8.elrepo.noarch.rpm -y 
sed -i "s@mirrorlist@#mirrorlist@g" /etc/yum.repos.d/elrepo.repo 
sed -i "s@elrepo.org/linux@mirrors.tuna.tsinghua.edu.cn/elrepo@g" /etc/yum.repos.d/elrepo.repo 

# 为 RHEL-7 SL-7 或 CentOS-7 安装 ELRepo 
yum install https://www.elrepo.org/elrepo-release-7.el7.elrepo.noarch.rpm -y 
sed -i "s@mirrorlist@#mirrorlist@g" /etc/yum.repos.d/elrepo.repo 
sed -i "s@elrepo.org/linux@mirrors.tuna.tsinghua.edu.cn/elrepo@g" /etc/yum.repos.d/elrepo.repo 

# 查看可用安装包
yum  --disablerepo="*"  --enablerepo="elrepo-kernel"  list  available

1.15.升级内核至4.18版本以上

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# Ubuntu忽略，CentOS执行

# 安装最新的内核
# 我这里选择的是稳定版kernel-ml   如需更新长期维护版本kernel-lt  
yum -y --enablerepo=elrepo-kernel  install  kernel-ml

# 查看已安装那些内核
rpm -qa | grep kernel

# 查看默认内核
grubby --default-kernel

# 若不是最新的使用命令设置
grubby --set-default $(ls /boot/vmlinuz-* | grep elrepo)

# 重启生效
reboot

# v8 整合命令为：
yum install https://www.elrepo.org/elrepo-release-9.el9.elrepo.noarch.rpm -y ; sed -i "s@mirrorlist@#mirrorlist@g" /etc/yum.repos.d/elrepo.repo ; sed -i "s@elrepo.org/linux@mirrors.tuna.tsinghua.edu.cn/elrepo@g" /etc/yum.repos.d/elrepo.repo ; yum  --disablerepo="*"  --enablerepo="elrepo-kernel"  list  available -y ; yum  --enablerepo=elrepo-kernel  install kernel-lt -y ; grubby --default-kernel ; reboot 

# v8 整合命令为：
yum install https://www.elrepo.org/elrepo-release-8.el8.elrepo.noarch.rpm -y ; sed -i "s@mirrorlist@#mirrorlist@g" /etc/yum.repos.d/elrepo.repo ; sed -i "s@elrepo.org/linux@mirrors.tuna.tsinghua.edu.cn/elrepo@g" /etc/yum.repos.d/elrepo.repo ; yum  --disablerepo="*"  --enablerepo="elrepo-kernel"  list  available -y ; yum  --enablerepo=elrepo-kernel  install kernel-lt -y ; grubby --default-kernel ; reboot 

# v7 整合命令为：
yum install https://www.elrepo.org/elrepo-release-7.el7.elrepo.noarch.rpm -y ; sed -i "s@mirrorlist@#mirrorlist@g" /etc/yum.repos.d/elrepo.repo ; sed -i "s@elrepo.org/linux@mirrors.tuna.tsinghua.edu.cn/elrepo@g" /etc/yum.repos.d/elrepo.repo ; yum  --disablerepo="*"  --enablerepo="elrepo-kernel"  list  available -y ; yum  --enablerepo=elrepo-kernel  install  kernel-lt -y ; grubby --set-default $(ls /boot/vmlinuz-* | grep elrepo) ; grubby --default-kernel ; reboot 

# 离线版本 
yum install -y /root/cby/kernel-lt-*-1.el7.elrepo.x86_64.rpm ; grubby --set-default $(ls /boot/vmlinuz-* | grep elrepo) ; grubby --default-kernel ; reboot

1.16.安装ipvsadm

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# 对于CentOS7离线安装
# yum install /root/centos7/ipset-*.el7.x86_64.rpm /root/centos7/lm_sensors-libs-*.el7.x86_64.rpm  /root/centos7/ipset-libs-*.el7.x86_64.rpm /root/centos7/sysstat-*.el7_9.x86_64.rpm  /root/centos7/ipvsadm-*.el7.x86_64.rpm  -y

# 对于 Ubuntu
# apt install ipvsadm ipset sysstat conntrack -y

# 对于 CentOS
yum install ipvsadm ipset sysstat conntrack libseccomp -y
cat >> /etc/modules-load.d/ipvs.conf <<EOF 
ip_vs
ip_vs_rr
ip_vs_wrr
ip_vs_sh
nf_conntrack
ip_tables
ip_set
xt_set
ipt_set
ipt_rpfilter
ipt_REJECT
ipip
EOF

systemctl restart systemd-modules-load.service

lsmod | grep -e ip_vs -e nf_conntrack
ip_vs_sh               16384  0
ip_vs_wrr              16384  0
ip_vs_rr               16384  0
ip_vs                 237568  6 ip_vs_rr,ip_vs_sh,ip_vs_wrr
nf_conntrack          217088  3 nf_nat,nft_ct,ip_vs
nf_defrag_ipv6         24576  2 nf_conntrack,ip_vs
nf_defrag_ipv4         16384  1 nf_conntrack
libcrc32c              16384  5 nf_conntrack,nf_nat,nf_tables,xfs,ip_vs

1.17.修改内核参数

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cat <<EOF > /etc/sysctl.d/k8s.conf
net.ipv4.ip_forward = 1
net.bridge.bridge-nf-call-iptables = 1
fs.may_detach_mounts = 1
vm.overcommit_memory=1
vm.panic_on_oom=0
fs.inotify.max_user_watches=89100
fs.file-max=52706963
fs.nr_open=52706963
net.netfilter.nf_conntrack_max=2310720

net.ipv4.tcp_keepalive_time = 600
net.ipv4.tcp_keepalive_probes = 3
net.ipv4.tcp_keepalive_intvl =15
net.ipv4.tcp_max_tw_buckets = 36000
net.ipv4.tcp_tw_reuse = 1
net.ipv4.tcp_max_orphans = 327680
net.ipv4.tcp_orphan_retries = 3
net.ipv4.tcp_syncookies = 1
net.ipv4.tcp_max_syn_backlog = 16384
net.ipv4.ip_conntrack_max = 65536
net.ipv4.tcp_max_syn_backlog = 16384
net.ipv4.tcp_timestamps = 0
net.core.somaxconn = 16384

net.ipv6.conf.all.disable_ipv6 = 0
net.ipv6.conf.default.disable_ipv6 = 0
net.ipv6.conf.lo.disable_ipv6 = 0
net.ipv6.conf.all.forwarding = 1
EOF

sysctl --system

1.18.所有节点配置hosts本地解析

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cat > /etc/hosts <<EOF
127.0.0.1   localhost localhost.localdomain localhost4 localhost4.localdomain4
::1         localhost localhost.localdomain localhost6 localhost6.localdomain6

192.168.1.31 k8s-master01
192.168.1.32 k8s-master02
192.168.1.33 k8s-master03
192.168.1.34 k8s-node01
192.168.1.35 k8s-node02
192.168.1.36 lb-vip

fc00::31 k8s-master01
fc00::32 k8s-master02
fc00::33 k8s-master03
fc00::34 k8s-node01
fc00::35 k8s-node02
EOF

2.k8s基本组件安装

注意 ： 2.1 和 2.2 二选其一即可

2.1.安装Containerd作为Runtime

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# https://github.com/containernetworking/plugins/releases/
# wget https://github.com/containernetworking/plugins/releases/download/v1.7.1/cni-plugins-linux-amd64-v1.7.1.tgz

cd cby/

#创建cni插件所需目录
mkdir -p /etc/cni/net.d /opt/cni/bin 
#解压cni二进制包
tar xf cni-plugins-linux-amd64-v*.tgz -C /opt/cni/bin/

# https://github.com/containerd/containerd/releases/
# wget https://github.com/containerd/containerd/releases/download/v2.0.5/containerd-2.0.5-linux-amd64.tar.gz

#解压
tar -xzf containerd-*-linux-amd64.tar.gz -C /usr/local/

#创建服务启动文件
cat > /etc/systemd/system/containerd.service <<EOF
[Unit]
Description=containerd container runtime
Documentation=https://containerd.io
After=network.target local-fs.target

[Service]
ExecStartPre=-/sbin/modprobe overlay
ExecStart=/usr/local/bin/containerd
Type=notify
Delegate=yes
KillMode=process
Restart=always
RestartSec=5
LimitNPROC=infinity
LimitCORE=infinity
LimitNOFILE=infinity
TasksMax=infinity
OOMScoreAdjust=-999

[Install]
WantedBy=multi-user.target
EOF

2.1.1配置Containerd所需的模块

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cat <<EOF | sudo tee /etc/modules-load.d/containerd.conf
overlay
br_netfilter
EOF

2.1.2加载模块

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systemctl restart systemd-modules-load.service

2.1.3配置Containerd所需的内核

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cat <<EOF | sudo tee /etc/sysctl.d/99-kubernetes-cri.conf
net.bridge.bridge-nf-call-iptables  = 1
net.ipv4.ip_forward                 = 1
net.bridge.bridge-nf-call-ip6tables = 1
EOF

# 加载内核
sysctl --system

2.1.4创建Containerd的配置文件

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# 创建默认配置文件
mkdir -p /etc/containerd
containerd config default | tee /etc/containerd/config.toml

# 修改Containerd的配置文件

# sed -i "s#SystemdCgroup\ \=\ false#SystemdCgroup\ \=\ true#g" /etc/containerd/config.toml
# cat /etc/containerd/config.toml | grep SystemdCgroup

# 沙箱pause镜像
sed -i "s#registry.k8s.io#registry.aliyuncs.com/chenby#g" /etc/containerd/config.toml
cat /etc/containerd/config.toml | grep sandbox

# 配置加速器
[root@k8s-master01 ~]# vim /etc/containerd/config.toml
[root@k8s-master01 ~]# cat /etc/containerd/config.toml | grep certs.d -C 5

    [plugins.'io.containerd.cri.v1.images'.pinned_images]
      sandbox = 'registry.aliyuncs.com/chenby/pause:3.10'

    [plugins.'io.containerd.cri.v1.images'.registry]
      config_path = '/etc/containerd/certs.d'

    [plugins.'io.containerd.cri.v1.images'.image_decryption]
      key_model = 'node'

  [plugins.'io.containerd.cri.v1.runtime']
[root@k8s-master01 ~]# 


mkdir /etc/containerd/certs.d/docker.io -pv
cat > /etc/containerd/certs.d/docker.io/hosts.toml << EOF
server = "https://docker.io"
[host."https://jockerhub.com"]
  capabilities = ["pull", "resolve"]
EOF

# 配置 GFW 代理
mkdir -p /etc/systemd/system/containerd.service.d
touch /etc/systemd/system/containerd.service.d/http-proxy.conf
tee /etc/systemd/system/containerd.service.d/http-proxy.conf << EOF
[Service]
Environment="HTTP_PROXY=http://IP:Port"
Environment="HTTPS_PROXY=http://IP:Port"
Environment="NO_PROXY=localhost,127.0.0.1,containerd"
EOF

2.1.5启动并设置为开机启动

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systemctl daemon-reload
systemctl enable --now containerd.service
systemctl stop containerd.service
systemctl start containerd.service
systemctl restart containerd.service
systemctl status containerd.service

2.1.6配置crictl客户端连接的运行时位置

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# https://github.com/kubernetes-sigs/cri-tools/releases/
# wget https://github.com/kubernetes-sigs/cri-tools/releases/download/v1.35.0/crictl-v1.35.0-linux-amd64.tar.gz

#解压
tar xf crictl-v*-linux-amd64.tar.gz -C /usr/bin/
#生成配置文件
cat > /etc/crictl.yaml <<EOF
runtime-endpoint: unix:///run/containerd/containerd.sock
image-endpoint: unix:///run/containerd/containerd.sock
timeout: 10
debug: false
EOF

#测试
systemctl restart  containerd
crictl info

2.2 安装docker作为Runtime

2.2.1 解压docker程序

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# 二进制包下载地址：https://download.docker.com/linux/static/stable/x86_64/
# wget https://mirrors.ustc.edu.cn/docker-ce/linux/static/stable/x86_64/docker-27.4.0.tgz

#解压
tar xf docker-*.tgz 
#拷贝二进制文件
cp docker/* /usr/bin/

2.2.2 创建containerd的service文件

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#创建containerd的service文件,并且启动
cat >/etc/systemd/system/containerd.service <<EOF
[Unit]
Description=containerd container runtime
Documentation=https://containerd.io
After=network.target local-fs.target

[Service]
ExecStartPre=-/sbin/modprobe overlay
ExecStart=/usr/bin/containerd
Type=notify
Delegate=yes
KillMode=process
Restart=always
RestartSec=5
LimitNPROC=infinity
LimitCORE=infinity
LimitNOFILE=1048576
TasksMax=infinity
OOMScoreAdjust=-999

[Install]
WantedBy=multi-user.target
EOF

# 设置开机自启
systemctl enable --now containerd.service

2.2.3 准备docker的service文件

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#准备docker的service文件
cat > /etc/systemd/system/docker.service <<EOF
[Unit]
Description=Docker Application Container Engine
Documentation=https://docs.docker.com
After=network-online.target firewalld.service containerd.service
Wants=network-online.target
Requires=containerd.service

[Service]
Type=notify
ExecStart=/usr/bin/dockerd -H fd:// --containerd=/run/containerd/containerd.sock
ExecReload=/bin/kill -s HUP $MAINPID
TimeoutSec=0
RestartSec=2
Restart=always
StartLimitBurst=3
StartLimitInterval=60s
LimitNOFILE=infinity
LimitNPROC=infinity
LimitCORE=infinity
TasksMax=infinity
Delegate=yes
KillMode=process
OOMScoreAdjust=-500

[Install]
WantedBy=multi-user.target
EOF

2.2.4 准备docker的socket文件

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#准备docker的socket文件
cat > /etc/systemd/system/docker.socket <<EOF
[Unit]
Description=Docker Socket for the API

[Socket]
ListenStream=/var/run/docker.sock
SocketMode=0660
SocketUser=root
SocketGroup=docker

[Install]
WantedBy=sockets.target
EOF

2.2.5 配置加速器

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# 配置加速器
mkdir /etc/docker/ -pv
cat >/etc/docker/daemon.json <<EOF
{
  "exec-opts": ["native.cgroupdriver=systemd"],
  "registry-mirrors": [
    "https://jockerhub.com"
  ],
  "max-concurrent-downloads": 10,
  "log-driver": "json-file",
  "log-level": "warn",
  "log-opts": {
    "max-size": "10m",
    "max-file": "3"
    },
  "data-root": "/var/lib/docker",
  "proxies": {
    "http-proxy": "http://192.168.1.100:7890",
    "https-proxy": "http://192.168.1.100:7890",
    "no-proxy": "localhost"
  }
}
EOF

2.2.6 启动docker

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groupadd docker
systemctl daemon-reload
systemctl enable --now docker.service
systemctl enable --now docker.socket
systemctl stop docker.service
systemctl start docker.service
systemctl restart docker.service
systemctl status docker.service
docker info

2.2.7 解压cri-docker

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# 由于1.24以及更高版本不支持docker所以安装cri-docker
# 下载cri-docker 
# https://github.com/Mirantis/cri-dockerd/releases/
# wget  https://github.com/Mirantis/cri-dockerd/releases/download/v0.3.16/cri-dockerd-0.3.16.amd64.tgz

# 解压cri-docker
tar xvf cri-dockerd-*.amd64.tgz 
cp -r cri-dockerd/  /usr/bin/
chmod +x /usr/bin/cri-dockerd/cri-dockerd

2.2.8 写入启动cri-docker配置文件

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# 写入启动配置文件
cat >  /usr/lib/systemd/system/cri-docker.service <<EOF
[Unit]
Description=CRI Interface for Docker Application Container Engine
Documentation=https://docs.mirantis.com
After=network-online.target firewalld.service docker.service
Wants=network-online.target
Requires=docker.service

[Service]
Type=notify
ExecStart=/usr/bin/cri-dockerd/cri-dockerd --network-plugin=cni --pod-infra-container-image=registry.aliyuncs.com/google_containers/pause:3.7
ExecReload=/bin/kill -s HUP $MAINPID
TimeoutSec=0
RestartSec=5
Restart=always
StartLimitBurst=5
StartLimitInterval=60s
LimitNOFILE=infinity
LimitNPROC=infinity
LimitCORE=infinity
TasksMax=infinity
Delegate=yes
KillMode=process

[Install]
WantedBy=multi-user.target
EOF

2.2.9 写入cri-docker的socket配置文件

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# 写入socket配置文件
cat > /usr/lib/systemd/system/cri-docker.socket <<EOF
[Unit]
Description=CRI Docker Socket for the API
PartOf=cri-docker.service

[Socket]
ListenStream=%t/cri-dockerd.sock
SocketMode=0660
SocketUser=root
SocketGroup=docker

[Install]
WantedBy=sockets.target
EOF

2.2.10 启动cri-docker

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systemctl daemon-reload
systemctl enable --now cri-docker.service
systemctl restart cri-docker.service
systemctl status cri-docker.service

2.3.k8s与etcd下载及安装（仅在master01操作）

2.3.1解压k8s安装包

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# 下载安装包
# https://github.com/etcd-io/etcd/releases/
# https://github.com/kubernetes/kubernetes/tree/master/CHANGELOG
# 
# wget https://github.com/etcd-io/etcd/releases/download/v3.5.21/etcd-v3.5.21-linux-amd64.tar.gz
# wget https://cdn.dl.k8s.io/release/v1.35.0/kubernetes-server-linux-amd64.tar.gz

# 解压k8s安装文件
cd cby
tar -xf kubernetes-server-linux-amd64.tar.gz  --strip-components=3 -C /usr/local/bin kubernetes/server/bin/kube{let,ctl,-apiserver,-controller-manager,-scheduler,-proxy}

# 解压etcd安装文件
tar -xf etcd*.tar.gz && mv etcd-*/etcd /usr/local/bin/ && mv etcd-*/etcdctl /usr/local/bin/

# 查看/usr/local/bin下内容
[root@localhost cby]# ll /usr/local/bin/
总用量 398984
-rwxr-xr-x 1 1000 docker 26087608 12月 18 03:41 etcd
-rwxr-xr-x 1 1000 docker 17207480 12月 18 03:41 etcdctl
-rwxr-xr-x 1 root root   85766328 12月 17 20:56 kube-apiserver
-rwxr-xr-x 1 root root   71815352 12月 17 20:56 kube-controller-manager
-rwxr-xr-x 1 root root   58597560 12月 17 20:56 kubectl
-rwxr-xr-x 1 root root   58110244 12月 17 20:56 kubelet
-rwxr-xr-x 1 root root   43258040 12月 17 20:56 kube-proxy
-rwxr-xr-x 1 root root   47685816 12月 17 20:56 kube-scheduler
[root@localhost cby]#

2.3.2查看版本

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[root@k8s-master01 ~]#  kubelet --version
Kubernetes v1.35.0
[root@k8s-master01 ~]# etcdctl version
etcdctl version: 3.6.7
API version: 3.6
[root@k8s-master01 ~]#

2.3.3将组件发送至其他k8s节点

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Master='k8s-master02 k8s-master03'
Work='k8s-node01 k8s-node02'

# 拷贝master组件
for NODE in $Master; do echo $NODE; scp /usr/local/bin/kube{let,ctl,-apiserver,-controller-manager,-scheduler,-proxy} $NODE:/usr/local/bin/; scp /usr/local/bin/etcd* $NODE:/usr/local/bin/; done

# 拷贝work组件
for NODE in $Work; do echo $NODE; scp /usr/local/bin/kube{let,-proxy} $NODE:/usr/local/bin/ ; done

# 所有节点执行
mkdir -p /opt/cni/bin

2.3创建证书相关文件

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# 请查看Github仓库 或者进行获取已经打好的包
# 可以根据下文3.x进行手动部署操作 
https://github.com/cby-chen/Kubernetes/
https://github.com/cby-chen/Kubernetes/tags
https://github.com/cby-chen/Kubernetes/releases/download/v1.35.0/kubernetes-v1.35.0.tar

3.相关证书生成

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# master01节点下载证书生成工具
# wget "https://github.com/cloudflare/cfssl/releases/download/v1.6.5/cfssl_1.6.5_linux_amd64" -O /usr/local/bin/cfssl
# wget "https://github.com/cloudflare/cfssl/releases/download/v1.6.5/cfssljson_1.6.5_linux_amd64" -O /usr/local/bin/cfssljson

# 软件包内有
cp cfssl_*_linux_amd64 /usr/local/bin/cfssl
cp cfssljson_*_linux_amd64 /usr/local/bin/cfssljson

# 添加执行权限
chmod +x /usr/local/bin/cfssl /usr/local/bin/cfssljson

3.1.生成etcd证书

特别说明除外，以下操作在所有master节点操作

3.1.1所有master节点创建证书存放目录

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mkdir /etc/etcd/ssl -p

3.1.2master01节点生成etcd证书

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# 写入生成证书所需的配置文件
cat > ca-config.json << EOF 
{
  "signing": {
    "default": {
      "expiry": "876000h"
    },
    "profiles": {
      "kubernetes": {
        "usages": [
            "signing",
            "key encipherment",
            "server auth",
            "client auth"
        ],
        "expiry": "876000h"
      }
    }
  }
}
EOF

cat > etcd-ca-csr.json  << EOF 
{
  "CN": "etcd",
  "key": {
    "algo": "rsa",
    "size": 2048
  },
  "names": [
    {
      "C": "CN",
      "ST": "Beijing",
      "L": "Beijing",
      "O": "etcd",
      "OU": "Etcd Security"
    }
  ],
  "ca": {
    "expiry": "876000h"
  }
}
EOF
# 生成etcd证书和etcd证书的key（如果你觉得以后可能会扩容，可以在ip那多写几个预留出来）
# 若没有IPv6 可删除可保留 

cfssl gencert -initca etcd-ca-csr.json | cfssljson -bare /etc/etcd/ssl/etcd-ca

cat > etcd-csr.json << EOF 
{
  "CN": "etcd",
  "key": {
    "algo": "rsa",
    "size": 2048
  },
  "names": [
    {
      "C": "CN",
      "ST": "Beijing",
      "L": "Beijing",
      "O": "etcd",
      "OU": "Etcd Security"
    }
  ]
}
EOF


cfssl gencert \
   -ca=/etc/etcd/ssl/etcd-ca.pem \
   -ca-key=/etc/etcd/ssl/etcd-ca-key.pem \
   -config=ca-config.json \
   -hostname=127.0.0.1,k8s-master01,k8s-master02,k8s-master03,192.168.1.31,192.168.1.32,192.168.1.33,::1 \
   -profile=kubernetes \
   etcd-csr.json | cfssljson -bare /etc/etcd/ssl/etcd

3.1.3将证书复制到其他节点

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Master='k8s-master02 k8s-master03'
for NODE in $Master; do ssh $NODE "mkdir -p /etc/etcd/ssl"; for FILE in etcd-ca-key.pem  etcd-ca.pem  etcd-key.pem  etcd.pem; do scp /etc/etcd/ssl/${FILE} $NODE:/etc/etcd/ssl/${FILE}; done; done

3.2.生成k8s相关证书

特别说明除外，以下操作在所有master节点操作

3.2.1 所有k8s节点创建证书存放目录

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mkdir -p /etc/kubernetes/pki

3.2.2 master01节点生成k8s证书

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# 写入生成证书所需的配置文件
cat > ca-csr.json   << EOF 
{
  "CN": "kubernetes",
  "key": {
    "algo": "rsa",
    "size": 2048
  },
  "names": [
    {
      "C": "CN",
      "ST": "Beijing",
      "L": "Beijing",
      "O": "Kubernetes",
      "OU": "Kubernetes-manual"
    }
  ],
  "ca": {
    "expiry": "876000h"
  }
}
EOF


cfssl gencert -initca ca-csr.json | cfssljson -bare /etc/kubernetes/pki/ca

cat > apiserver-csr.json << EOF 
{
  "CN": "kube-apiserver",
  "key": {
    "algo": "rsa",
    "size": 2048
  },
  "names": [
    {
      "C": "CN",
      "ST": "Beijing",
      "L": "Beijing",
      "O": "Kubernetes",
      "OU": "Kubernetes-manual"
    }
  ]
}
EOF

# 生成一个根证书 ，多写了一些IP作为预留IP，为将来添加node做准备
# 10.96.0.1是service网段的第一个地址，需要计算，192.168.1.36为高可用vip地址
# 若没有IPv6 可删除可保留 

cfssl gencert   \
-ca=/etc/kubernetes/pki/ca.pem   \
-ca-key=/etc/kubernetes/pki/ca-key.pem   \
-config=ca-config.json   \
-hostname=10.96.0.1,192.168.1.36,127.0.0.1,kubernetes,kubernetes.default,kubernetes.default.svc,kubernetes.default.svc.cluster,kubernetes.default.svc.cluster.local,x.oiox.cn,z.oiox.cn,192.168.1.31,192.168.1.32,192.168.1.33,192.168.1.34,192.168.1.35,192.168.1.36,192.168.1.37,192.168.1.38,192.168.1.39,192.168.1.40,::1   \
-profile=kubernetes   apiserver-csr.json | cfssljson -bare /etc/kubernetes/pki/apiserver

3.2.3 生成apiserver聚合证书

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cat > front-proxy-ca-csr.json  << EOF 
{
  "CN": "kubernetes",
  "key": {
     "algo": "rsa",
     "size": 2048
  },
  "ca": {
    "expiry": "876000h"
  }
}
EOF

cfssl gencert   -initca front-proxy-ca-csr.json | cfssljson -bare /etc/kubernetes/pki/front-proxy-ca 

cat > front-proxy-client-csr.json  << EOF 
{
  "CN": "front-proxy-client",
  "key": {
     "algo": "rsa",
     "size": 2048
  }
}
EOF

cfssl gencert  \
-ca=/etc/kubernetes/pki/front-proxy-ca.pem   \
-ca-key=/etc/kubernetes/pki/front-proxy-ca-key.pem   \
-config=ca-config.json   \
-profile=kubernetes   front-proxy-client-csr.json | cfssljson -bare /etc/kubernetes/pki/front-proxy-client

3.2.4 生成controller-manage的证书

在《5.高可用配置》选择使用那种高可用方案
若使用 haproxy、keepalived 那么为 --server=https://192.168.1.36:9443
若使用 nginx方案，那么为 --server=https://127.0.0.1:8443

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cat > manager-csr.json << EOF 
{
  "CN": "system:kube-controller-manager",
  "key": {
    "algo": "rsa",
    "size": 2048
  },
  "names": [
    {
      "C": "CN",
      "ST": "Beijing",
      "L": "Beijing",
      "O": "system:kube-controller-manager",
      "OU": "Kubernetes-manual"
    }
  ]
}
EOF


cfssl gencert \
   -ca=/etc/kubernetes/pki/ca.pem \
   -ca-key=/etc/kubernetes/pki/ca-key.pem \
   -config=ca-config.json \
   -profile=kubernetes \
   manager-csr.json | cfssljson -bare /etc/kubernetes/pki/controller-manager


# 设置一个集群项
# 在《5.高可用配置》选择使用那种高可用方案
# 若使用 haproxy、keepalived 那么为 `--server=https://192.168.1.36:9443`
# 若使用 nginx方案，那么为 `--server=https://127.0.0.1:8443`
kubectl config set-cluster kubernetes \
     --certificate-authority=/etc/kubernetes/pki/ca.pem \
     --embed-certs=true \
     --server=https://127.0.0.1:8443 \
     --kubeconfig=/etc/kubernetes/controller-manager.kubeconfig

# 设置一个环境项，一个上下文
kubectl config set-context system:kube-controller-manager@kubernetes \
    --cluster=kubernetes \
    --user=system:kube-controller-manager \
    --kubeconfig=/etc/kubernetes/controller-manager.kubeconfig

  # 设置一个用户项
kubectl config set-credentials system:kube-controller-manager \
   --client-certificate=/etc/kubernetes/pki/controller-manager.pem \
   --client-key=/etc/kubernetes/pki/controller-manager-key.pem \
   --embed-certs=true \
   --kubeconfig=/etc/kubernetes/controller-manager.kubeconfig

# 设置默认环境
kubectl config use-context system:kube-controller-manager@kubernetes \
     --kubeconfig=/etc/kubernetes/controller-manager.kubeconfig

3.2.5 生成kube-scheduler的证书

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cat > scheduler-csr.json << EOF 
{
  "CN": "system:kube-scheduler",
  "key": {
    "algo": "rsa",
    "size": 2048
  },
  "names": [
    {
      "C": "CN",
      "ST": "Beijing",
      "L": "Beijing",
      "O": "system:kube-scheduler",
      "OU": "Kubernetes-manual"
    }
  ]
}
EOF


cfssl gencert \
   -ca=/etc/kubernetes/pki/ca.pem \
   -ca-key=/etc/kubernetes/pki/ca-key.pem \
   -config=ca-config.json \
   -profile=kubernetes \
   scheduler-csr.json | cfssljson -bare /etc/kubernetes/pki/scheduler


# 在《5.高可用配置》选择使用那种高可用方案
# 若使用 haproxy、keepalived 那么为 `--server=https://192.168.1.36:9443`
# 若使用 nginx方案，那么为 `--server=https://127.0.0.1:8443`

kubectl config set-cluster kubernetes \
     --certificate-authority=/etc/kubernetes/pki/ca.pem \
     --embed-certs=true \
     --server=https://127.0.0.1:8443 \
     --kubeconfig=/etc/kubernetes/scheduler.kubeconfig


kubectl config set-credentials system:kube-scheduler \
     --client-certificate=/etc/kubernetes/pki/scheduler.pem \
     --client-key=/etc/kubernetes/pki/scheduler-key.pem \
     --embed-certs=true \
     --kubeconfig=/etc/kubernetes/scheduler.kubeconfig


kubectl config set-context system:kube-scheduler@kubernetes \
     --cluster=kubernetes \
     --user=system:kube-scheduler \
     --kubeconfig=/etc/kubernetes/scheduler.kubeconfig

kubectl config use-context system:kube-scheduler@kubernetes \
     --kubeconfig=/etc/kubernetes/scheduler.kubeconfig

3.2.6 生成admin的证书配置

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cat > admin-csr.json << EOF 
{
  "CN": "admin",
  "key": {
    "algo": "rsa",
    "size": 2048
  },
  "names": [
    {
      "C": "CN",
      "ST": "Beijing",
      "L": "Beijing",
      "O": "system:masters",
      "OU": "Kubernetes-manual"
    }
  ]
}
EOF


cfssl gencert \
   -ca=/etc/kubernetes/pki/ca.pem \
   -ca-key=/etc/kubernetes/pki/ca-key.pem \
   -config=ca-config.json \
   -profile=kubernetes \
   admin-csr.json | cfssljson -bare /etc/kubernetes/pki/admin

# 在《5.高可用配置》选择使用那种高可用方案
# 若使用 haproxy、keepalived 那么为 `--server=https://192.168.1.36:9443`
# 若使用 nginx方案，那么为 `--server=https://127.0.0.1:8443`

kubectl config set-cluster kubernetes     \
  --certificate-authority=/etc/kubernetes/pki/ca.pem     \
  --embed-certs=true     \
  --server=https://127.0.0.1:8443     \
  --kubeconfig=/etc/kubernetes/admin.kubeconfig

kubectl config set-credentials kubernetes-admin  \
  --client-certificate=/etc/kubernetes/pki/admin.pem     \
  --client-key=/etc/kubernetes/pki/admin-key.pem     \
  --embed-certs=true     \
  --kubeconfig=/etc/kubernetes/admin.kubeconfig

kubectl config set-context kubernetes-admin@kubernetes    \
  --cluster=kubernetes     \
  --user=kubernetes-admin     \
  --kubeconfig=/etc/kubernetes/admin.kubeconfig

kubectl config use-context kubernetes-admin@kubernetes  --kubeconfig=/etc/kubernetes/admin.kubeconfig

3.2.7 创建kube-proxy证书

在《5.高可用配置》选择使用那种高可用方案
若使用 haproxy、keepalived 那么为 --server=https://192.168.1.36:9443
若使用 nginx方案，那么为 --server=https://127.0.0.1:8443

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cat > kube-proxy-csr.json  << EOF 
{
  "CN": "system:kube-proxy",
  "key": {
    "algo": "rsa",
    "size": 2048
  },
  "names": [
    {
      "C": "CN",
      "ST": "Beijing",
      "L": "Beijing",
      "O": "system:kube-proxy",
      "OU": "Kubernetes-manual"
    }
  ]
}
EOF

cfssl gencert \
   -ca=/etc/kubernetes/pki/ca.pem \
   -ca-key=/etc/kubernetes/pki/ca-key.pem \
   -config=ca-config.json \
   -profile=kubernetes \
   kube-proxy-csr.json | cfssljson -bare /etc/kubernetes/pki/kube-proxy

# 在《5.高可用配置》选择使用那种高可用方案
# 若使用 haproxy、keepalived 那么为 `--server=https://192.168.1.36:9443`
# 若使用 nginx方案，那么为 `--server=https://127.0.0.1:8443`

kubectl config set-cluster kubernetes     \
  --certificate-authority=/etc/kubernetes/pki/ca.pem     \
  --embed-certs=true     \
  --server=https://127.0.0.1:8443     \
  --kubeconfig=/etc/kubernetes/kube-proxy.kubeconfig


kubectl config set-credentials kube-proxy  \
  --client-certificate=/etc/kubernetes/pki/kube-proxy.pem     \
  --client-key=/etc/kubernetes/pki/kube-proxy-key.pem     \
  --embed-certs=true     \
  --kubeconfig=/etc/kubernetes/kube-proxy.kubeconfig

kubectl config set-context kube-proxy@kubernetes    \
  --cluster=kubernetes     \
  --user=kube-proxy     \
  --kubeconfig=/etc/kubernetes/kube-proxy.kubeconfig

kubectl config use-context kube-proxy@kubernetes  --kubeconfig=/etc/kubernetes/kube-proxy.kubeconfig

3.2.8 创建ServiceAccount Key ——secret

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openssl rsa -in /etc/kubernetes/pki/sa.key -pubout -out /etc/kubernetes/pki/sa.pub

3.2.9 将证书发送到其他master节点

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#其他节点创建目录
# mkdir  /etc/kubernetes/pki/ -p

for NODE in k8s-master02 k8s-master03; do  for FILE in $(ls /etc/kubernetes/pki | grep -v etcd); do  scp /etc/kubernetes/pki/${FILE} $NODE:/etc/kubernetes/pki/${FILE}; done;  for FILE in admin.kubeconfig controller-manager.kubeconfig scheduler.kubeconfig; do  scp /etc/kubernetes/${FILE} $NODE:/etc/kubernetes/${FILE}; done; done

3.2.10 查看证书

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[root@localhost cby]# ll /etc/kubernetes/pki/
总用量 104
-rw-r--r-- 1 root root 1025 12月 19 20:22 admin.csr
-rw------- 1 root root 1675 12月 19 20:22 admin-key.pem
-rw-r--r-- 1 root root 1444 12月 19 20:22 admin.pem
-rw-r--r-- 1 root root 1415 12月 19 20:21 apiserver.csr
-rw------- 1 root root 1679 12月 19 20:21 apiserver-key.pem
-rw-r--r-- 1 root root 1805 12月 19 20:21 apiserver.pem
-rw-r--r-- 1 root root 1070 12月 19 20:21 ca.csr
-rw------- 1 root root 1679 12月 19 20:21 ca-key.pem
-rw-r--r-- 1 root root 1363 12月 19 20:21 ca.pem
-rw-r--r-- 1 root root 1082 12月 19 20:21 controller-manager.csr
-rw------- 1 root root 1675 12月 19 20:21 controller-manager-key.pem
-rw-r--r-- 1 root root 1501 12月 19 20:21 controller-manager.pem
-rw-r--r-- 1 root root  940 12月 19 20:21 front-proxy-ca.csr
-rw------- 1 root root 1679 12月 19 20:21 front-proxy-ca-key.pem
-rw-r--r-- 1 root root 1094 12月 19 20:21 front-proxy-ca.pem
-rw-r--r-- 1 root root  903 12月 19 20:21 front-proxy-client.csr
-rw------- 1 root root 1679 12月 19 20:21 front-proxy-client-key.pem
-rw-r--r-- 1 root root 1188 12月 19 20:21 front-proxy-client.pem
-rw-r--r-- 1 root root 1045 12月 19 20:22 kube-proxy.csr
-rw------- 1 root root 1679 12月 19 20:22 kube-proxy-key.pem
-rw-r--r-- 1 root root 1464 12月 19 20:22 kube-proxy.pem
-rw------- 1 root root 1704 12月 19 20:22 sa.key
-rw-r--r-- 1 root root  451 12月 19 20:22 sa.pub
-rw-r--r-- 1 root root 1058 12月 19 20:22 scheduler.csr
-rw------- 1 root root 1679 12月 19 20:22 scheduler-key.pem
-rw-r--r-- 1 root root 1476 12月 19 20:22 scheduler.pem
[root@localhost cby]# 



# 一共26个就对了
ls /etc/kubernetes/pki/ |wc -l
26

4.k8s系统组件配置

4.1.etcd配置

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详见完整版 https://github.com/cby-chen/Kubernetes

4.1.1master01配置

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cat > /etc/etcd/etcd.config.yml << EOF 
name: 'k8s-master01'
data-dir: /var/lib/etcd
wal-dir: /var/lib/etcd/wal
snapshot-count: 5000
heartbeat-interval: 100
election-timeout: 1000
quota-backend-bytes: 0
listen-peer-urls: 'https://192.168.1.31:2380'
listen-client-urls: 'https://192.168.1.31:2379,http://127.0.0.1:2379'
max-snapshots: 3
max-wals: 5
cors:
initial-advertise-peer-urls: 'https://192.168.1.31:2380'
advertise-client-urls: 'https://192.168.1.31:2379'
discovery:
discovery-fallback: 'proxy'
discovery-proxy:
discovery-srv:
initial-cluster: 'k8s-master01=https://192.168.1.31:2380,k8s-master02=https://192.168.1.32:2380,k8s-master03=https://192.168.1.33:2380'
initial-cluster-token: 'etcd-k8s-cluster'
initial-cluster-state: 'new'
strict-reconfig-check: false
enable-v2: true
enable-pprof: true
proxy: 'off'
proxy-failure-wait: 5000
proxy-refresh-interval: 30000
proxy-dial-timeout: 1000
proxy-write-timeout: 5000
proxy-read-timeout: 0
client-transport-security:
  cert-file: '/etc/kubernetes/pki/etcd/etcd.pem'
  key-file: '/etc/kubernetes/pki/etcd/etcd-key.pem'
  client-cert-auth: true
  trusted-ca-file: '/etc/kubernetes/pki/etcd/etcd-ca.pem'
  auto-tls: true
peer-transport-security:
  cert-file: '/etc/kubernetes/pki/etcd/etcd.pem'
  key-file: '/etc/kubernetes/pki/etcd/etcd-key.pem'
  peer-client-cert-auth: true
  trusted-ca-file: '/etc/kubernetes/pki/etcd/etcd-ca.pem'
  auto-tls: true
debug: false
log-package-levels:
log-outputs: [default]
force-new-cluster: false
EOF

4.1.2master02配置

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cat > /etc/etcd/etcd.config.yml << EOF 
name: 'k8s-master02'
data-dir: /var/lib/etcd
wal-dir: /var/lib/etcd/wal
snapshot-count: 5000
heartbeat-interval: 100
election-timeout: 1000
quota-backend-bytes: 0
listen-peer-urls: 'https://192.168.1.32:2380'
listen-client-urls: 'https://192.168.1.32:2379,http://127.0.0.1:2379'
max-snapshots: 3
max-wals: 5
cors:
initial-advertise-peer-urls: 'https://192.168.1.32:2380'
advertise-client-urls: 'https://192.168.1.32:2379'
discovery:
discovery-fallback: 'proxy'
discovery-proxy:
discovery-srv:
initial-cluster: 'k8s-master01=https://192.168.1.31:2380,k8s-master02=https://192.168.1.32:2380,k8s-master03=https://192.168.1.33:2380'
initial-cluster-token: 'etcd-k8s-cluster'
initial-cluster-state: 'new'
strict-reconfig-check: false
enable-v2: true
enable-pprof: true
proxy: 'off'
proxy-failure-wait: 5000
proxy-refresh-interval: 30000
proxy-dial-timeout: 1000
proxy-write-timeout: 5000
proxy-read-timeout: 0
client-transport-security:
  cert-file: '/etc/kubernetes/pki/etcd/etcd.pem'
  key-file: '/etc/kubernetes/pki/etcd/etcd-key.pem'
  client-cert-auth: true
  trusted-ca-file: '/etc/kubernetes/pki/etcd/etcd-ca.pem'
  auto-tls: true
peer-transport-security:
  cert-file: '/etc/kubernetes/pki/etcd/etcd.pem'
  key-file: '/etc/kubernetes/pki/etcd/etcd-key.pem'
  peer-client-cert-auth: true
  trusted-ca-file: '/etc/kubernetes/pki/etcd/etcd-ca.pem'
  auto-tls: true
debug: false
log-package-levels:
log-outputs: [default]
force-new-cluster: false
EOF

4.1.3master03配置

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cat > /etc/etcd/etcd.config.yml << EOF 
name: 'k8s-master03'
data-dir: /var/lib/etcd
wal-dir: /var/lib/etcd/wal
snapshot-count: 5000
heartbeat-interval: 100
election-timeout: 1000
quota-backend-bytes: 0
listen-peer-urls: 'https://192.168.1.33:2380'
listen-client-urls: 'https://192.168.1.33:2379,http://127.0.0.1:2379'
max-snapshots: 3
max-wals: 5
cors:
initial-advertise-peer-urls: 'https://192.168.1.33:2380'
advertise-client-urls: 'https://192.168.1.33:2379'
discovery:
discovery-fallback: 'proxy'
discovery-proxy:
discovery-srv:
initial-cluster: 'k8s-master01=https://192.168.1.31:2380,k8s-master02=https://192.168.1.32:2380,k8s-master03=https://192.168.1.33:2380'
initial-cluster-token: 'etcd-k8s-cluster'
initial-cluster-state: 'new'
strict-reconfig-check: false
enable-v2: true
enable-pprof: true
proxy: 'off'
proxy-failure-wait: 5000
proxy-refresh-interval: 30000
proxy-dial-timeout: 1000
proxy-write-timeout: 5000
proxy-read-timeout: 0
client-transport-security:
  cert-file: '/etc/kubernetes/pki/etcd/etcd.pem'
  key-file: '/etc/kubernetes/pki/etcd/etcd-key.pem'
  client-cert-auth: true
  trusted-ca-file: '/etc/kubernetes/pki/etcd/etcd-ca.pem'
  auto-tls: true
peer-transport-security:
  cert-file: '/etc/kubernetes/pki/etcd/etcd.pem'
  key-file: '/etc/kubernetes/pki/etcd/etcd-key.pem'
  peer-client-cert-auth: true
  trusted-ca-file: '/etc/kubernetes/pki/etcd/etcd-ca.pem'
  auto-tls: true
debug: false
log-package-levels:
log-outputs: [default]
force-new-cluster: false
EOF

4.2.创建service（所有master节点操作）

4.2.1创建etcd.service并启动

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cat > /usr/lib/systemd/system/etcd.service << EOF

[Unit]
Description=Etcd Service
Documentation=https://coreos.com/etcd/docs/latest/
After=network.target

[Service]
Type=notify
ExecStart=/usr/local/bin/etcd --config-file=/etc/etcd/etcd.config.yml
TimeoutSec=0
RestartSec=60
Restart=always
StartLimitBurst=3
StartLimitInterval=60s
LimitNOFILE=infinity
LimitNPROC=infinity
LimitCORE=infinity
TasksMax=infinity

[Install]
WantedBy=multi-user.target
Alias=etcd3.service

EOF

4.2.2创建etcd证书目录

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mkdir /etc/kubernetes/pki/etcd
ln -s /etc/etcd/ssl/* /etc/kubernetes/pki/etcd/

systemctl daemon-reload
systemctl enable --now etcd.service
systemctl restart etcd.service
systemctl status etcd.service

4.2.3查看etcd状态

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# 如果要用IPv6那么把IPv4地址修改为IPv6即可
export ETCDCTL_API=3
etcdctl --endpoints="192.168.1.33:2379,192.168.1.32:2379,192.168.1.31:2379" --cacert=/etc/kubernetes/pki/etcd/etcd-ca.pem --cert=/etc/kubernetes/pki/etcd/etcd.pem --key=/etc/kubernetes/pki/etcd/etcd-key.pem  endpoint status --write-out=table
+-------------------+------------------+---------+-----------------+---------+--------+-----------------------+--------+-----------+------------+-----------+------------+--------------------+--------+--------------------------+-------------------+
|     ENDPOINT      |        ID        | VERSION | STORAGE VERSION | DB SIZE | IN USE | PERCENTAGE NOT IN USE | QUOTA  | IS LEADER | IS LEARNER | RAFT TERM | RAFT INDEX | RAFT APPLIED INDEX | ERRORS | DOWNGRADE TARGET VERSION | DOWNGRADE ENABLED |
+-------------------+------------------+---------+-----------------+---------+--------+-----------------------+--------+-----------+------------+-----------+------------+--------------------+--------+--------------------------+-------------------+
| 192.168.1.33:2379 |  8065f2e59c8d68c |   3.6.7 |           3.6.0 |   20 kB |  16 kB |                   20% | 2.1 GB |     false |      false |         4 |         14 |                 14 |        |                          |             false |
| 192.168.1.32:2379 | b7b7ad6bf4db3f28 |   3.6.7 |           3.6.0 |   20 kB |  16 kB |                   20% | 2.1 GB |      true |      false |         4 |         14 |                 14 |        |                          |             false |
| 192.168.1.31:2379 | bf047bcfe3b9bf27 |   3.6.7 |           3.6.0 |   20 kB |  16 kB |                   20% | 2.1 GB |     false |      false |         4 |         14 |                 14 |        |                          |             false |
+-------------------+------------------+---------+-----------------+---------+--------+-----------------------+--------+-----------+------------+-----------+------------+--------------------+--------+--------------------------+-------------------+

5.高可用配置（在Master服务器上操作）

注意 5.1.1 和5.1.2 二选一即可*

选择使用那种高可用方案，同时可以俩种都选用，实现内外兼顾的效果，比如：
5.1 的 NGINX方案实现集群内的高可用
5.2 的 haproxy、keepalived 方案实现集群外访问

在《3.2.生成k8s相关证书》

若使用 nginx方案，那么为 --server=https://127.0.0.1:8443
若使用 haproxy、keepalived 那么为 --server=https://192.168.1.36:9443

5.1 NGINX高可用方案

5.1.1 进行编译

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# 安装编译环境
yum install gcc -y

# 下载解压nginx二进制文件
# wget http://nginx.org/download/nginx-1.25.3.tar.gz
tar xvf nginx-*.tar.gz
cd nginx-*

# 进行编译
./configure --with-stream --without-http --without-http_uwsgi_module --without-http_scgi_module --without-http_fastcgi_module
make && make install 

# 拷贝编译好的nginx
node='k8s-master02 k8s-master03 k8s-node01 k8s-node02'
for NODE in $node; do scp -r /usr/local/nginx/ $NODE:/usr/local/nginx/; done

5.1.2 写入启动配置

在所有主机上执行

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# 写入nginx配置文件
cat > /usr/local/nginx/conf/kube-nginx.conf <<EOF
worker_processes 1;
events {
    worker_connections  1024;
}
stream {
    upstream backend {
        least_conn;
        hash $remote_addr consistent;
        server 192.168.1.31:6443        max_fails=3 fail_timeout=30s;
        server 192.168.1.32:6443        max_fails=3 fail_timeout=30s;
        server 192.168.1.33:6443        max_fails=3 fail_timeout=30s;
    }
    server {
        listen 127.0.0.1:8443;
        proxy_connect_timeout 1s;
        proxy_pass backend;
    }
}
EOF

# 写入启动配置文件
cat > /etc/systemd/system/kube-nginx.service <<EOF
[Unit]
Description=kube-apiserver nginx proxy
After=network.target
After=network-online.target
Wants=network-online.target

[Service]
Type=forking
ExecStartPre=/usr/local/nginx/sbin/nginx -c /usr/local/nginx/conf/kube-nginx.conf -p /usr/local/nginx -t
ExecStart=/usr/local/nginx/sbin/nginx -c /usr/local/nginx/conf/kube-nginx.conf -p /usr/local/nginx
ExecReload=/usr/local/nginx/sbin/nginx -c /usr/local/nginx/conf/kube-nginx.conf -p /usr/local/nginx -s reload
PrivateTmp=true
Restart=always
RestartSec=5
StartLimitInterval=0
LimitNOFILE=65536

[Install]
WantedBy=multi-user.target
EOF

# 设置开机自启
systemctl daemon-reload
systemctl enable --now kube-nginx.service
systemctl restart kube-nginx.service
systemctl status kube-nginx.service

5.2 keepalived和haproxy 高可用方案

5.2.1安装keepalived和haproxy服务

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systemctl disable --now firewalld
setenforce 0
sed -i 's#SELINUX=enforcing#SELINUX=disabled#g' /etc/selinux/config
yum -y install keepalived haproxy

5.2.2修改haproxy配置文件（配置文件一样）

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cp /etc/haproxy/haproxy.cfg /etc/haproxy/haproxy.cfg.bak
cat >/etc/haproxy/haproxy.cfg<<"EOF"
global
 maxconn 2000
 ulimit-n 16384
 log 127.0.0.1 local0 err
 stats timeout 30s

defaults
 log global
 mode http
 option httplog
 timeout connect 5000
 timeout client 50000
 timeout server 50000
 timeout http-request 15s
 timeout http-keep-alive 15s


frontend monitor-in
 bind *:33305
 mode http
 option httplog
 monitor-uri /monitor

frontend k8s-master
 bind 0.0.0.0:9443
 bind 127.0.0.1:9443
 mode tcp
 option tcplog
 tcp-request inspect-delay 5s
 default_backend k8s-master


backend k8s-master
 mode tcp
 option tcplog
 option tcp-check
 balance roundrobin
 default-server inter 10s downinter 5s rise 2 fall 2 slowstart 60s maxconn 250 maxqueue 256 weight 100
 server  k8s-master01  192.168.1.31:6443 check
 server  k8s-master02  192.168.1.32:6443 check
 server  k8s-master03  192.168.1.33:6443 check
EOF

参数

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详见完整版 https://github.com/cby-chen/Kubernetes

5.2.3Master01配置keepalived master节点

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cp /etc/keepalived/keepalived.conf /etc/keepalived/keepalived.conf.bak

cat > /etc/keepalived/keepalived.conf << EOF
! Configuration File for keepalived

global_defs {
    router_id LVS_DEVEL
}
vrrp_script chk_apiserver {
    script "/etc/keepalived/check_apiserver.sh"
    interval 5 
    weight -5
    fall 2
    rise 1
}
vrrp_instance VI_1 {
    state MASTER
    # 注意网卡名
    interface ens160 
    mcast_src_ip 192.168.1.31
    virtual_router_id 51
    priority 100
    nopreempt
    advert_int 2
    authentication {
        auth_type PASS
        auth_pass K8SHA_KA_AUTH
    }
    virtual_ipaddress {
        192.168.1.36
    }
    track_script {
      chk_apiserver 
} }

EOF

5.2.4Master02配置keepalived backup节点

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cp /etc/keepalived/keepalived.conf /etc/keepalived/keepalived.conf.bak

cat > /etc/keepalived/keepalived.conf << EOF
! Configuration File for keepalived

global_defs {
    router_id LVS_DEVEL
}
vrrp_script chk_apiserver {
    script "/etc/keepalived/check_apiserver.sh"
    interval 5 
    weight -5
    fall 2
    rise 1

}
vrrp_instance VI_1 {
    state BACKUP
    # 注意网卡名
    interface ens160
    mcast_src_ip 192.168.1.32
    virtual_router_id 51
    priority 80
    nopreempt
    advert_int 2
    authentication {
        auth_type PASS
        auth_pass K8SHA_KA_AUTH
    }
    virtual_ipaddress {
        192.168.1.36
    }
    track_script {
      chk_apiserver 
} }

EOF

5.2.5Master03配置keepalived backup节点

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cp /etc/keepalived/keepalived.conf /etc/keepalived/keepalived.conf.bak

cat > /etc/keepalived/keepalived.conf << EOF
! Configuration File for keepalived

global_defs {
    router_id LVS_DEVEL
}
vrrp_script chk_apiserver {
    script "/etc/keepalived/check_apiserver.sh"
    interval 5 
    weight -5
    fall 2
    rise 1

}
vrrp_instance VI_1 {
    state BACKUP
    # 注意网卡名
    interface ens160
    mcast_src_ip 192.168.1.33
    virtual_router_id 51
    priority 50
    nopreempt
    advert_int 2
    authentication {
        auth_type PASS
        auth_pass K8SHA_KA_AUTH
    }
    virtual_ipaddress {
        192.168.1.36
    }
    track_script {
      chk_apiserver 
} }

EOF

参数

1
详见完整版 https://github.com/cby-chen/Kubernetes

5.2.6健康检查脚本配置（lb主机）

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cat >  /etc/keepalived/check_apiserver.sh << EOF
#!/bin/bash

err=0
for k in \$(seq 1 3)
do
    check_code=\$(pgrep haproxy)
    if [[ \$check_code == "" ]]; then
        err=\$(expr \$err + 1)
        sleep 1
        continue
    else
        err=0
        break
    fi
done

if [[ \$err != "0" ]]; then
    echo "systemctl stop keepalived"
    /usr/bin/systemctl stop keepalived
    exit 1
else
    exit 0
fi
EOF

# 给脚本授权

chmod +x /etc/keepalived/check_apiserver.sh

5.2.7启动服务

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systemctl daemon-reload
systemctl enable --now haproxy.service
systemctl enable --now keepalived.service
systemctl status haproxy.service
systemctl status keepalived.service

5.2.8测试高可用

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# 能ping同
[root@k8s-node02 ~]# ping 192.168.1.36

# 能telnet访问
[root@k8s-node02 ~]# telnet 192.168.1.36 9443

# 关闭主节点，看vip是否漂移到备节点

6.k8s组件配置

所有k8s节点创建以下目录

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mkdir -p /etc/kubernetes/manifests/ /etc/systemd/system/kubelet.service.d /var/lib/kubelet /var/log/kubernetes

6.1.创建apiserver（所有master节点）

6.1.1master01节点配置

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# 若关闭IPv6 删除 --service-cluster-ip-range 的 IPv6 即可
cat > /usr/lib/systemd/system/kube-apiserver.service << EOF
[Unit]
Description=Kubernetes API Server
Documentation=https://github.com/kubernetes/kubernetes
After=network.target

[Service]
ExecStart=/usr/local/bin/kube-apiserver \\
      --v=2  \\
      --allow-privileged=true  \\
      --bind-address=0.0.0.0  \\
      --secure-port=6443  \\
      --advertise-address=192.168.1.31 \\
      --service-cluster-ip-range=10.96.0.0/12,fd00:1111::/112  \\
      --service-node-port-range=30000-32767  \\
      --etcd-servers=https://192.168.1.31:2379,https://192.168.1.32:2379,https://192.168.1.33:2379 \\
      --etcd-cafile=/etc/etcd/ssl/etcd-ca.pem  \\
      --etcd-certfile=/etc/etcd/ssl/etcd.pem  \\
      --etcd-keyfile=/etc/etcd/ssl/etcd-key.pem  \\
      --client-ca-file=/etc/kubernetes/pki/ca.pem  \\
      --tls-cert-file=/etc/kubernetes/pki/apiserver.pem  \\
      --tls-private-key-file=/etc/kubernetes/pki/apiserver-key.pem  \\
      --kubelet-client-certificate=/etc/kubernetes/pki/apiserver.pem  \\
      --kubelet-client-key=/etc/kubernetes/pki/apiserver-key.pem  \\
      --service-account-key-file=/etc/kubernetes/pki/sa.pub  \\
      --service-account-signing-key-file=/etc/kubernetes/pki/sa.key  \\
      --service-account-issuer=https://kubernetes.default.svc.cluster.local \\
      --kubelet-preferred-address-types=InternalIP,ExternalIP,Hostname  \\
      --enable-admission-plugins=NamespaceLifecycle,LimitRanger,ServiceAccount,DefaultStorageClass,DefaultTolerationSeconds,NodeRestriction,ResourceQuota  \
      --authorization-mode=Node,RBAC  \\
      --enable-bootstrap-token-auth=true  \\
      --requestheader-client-ca-file=/etc/kubernetes/pki/front-proxy-ca.pem  \\
      --proxy-client-cert-file=/etc/kubernetes/pki/front-proxy-client.pem  \\
      --proxy-client-key-file=/etc/kubernetes/pki/front-proxy-client-key.pem  \\
      --requestheader-allowed-names=aggregator  \\
      --requestheader-group-headers=X-Remote-Group  \\
      --requestheader-extra-headers-prefix=X-Remote-Extra-  \\
      --requestheader-username-headers=X-Remote-User \\
      --enable-aggregator-routing=true
Restart=on-failure
RestartSec=10s
LimitNOFILE=65535

[Install]
WantedBy=multi-user.target

EOF

6.1.2master02节点配置

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# 若关闭IPv6 删除 --service-cluster-ip-range 的 IPv6 即可
cat > /usr/lib/systemd/system/kube-apiserver.service << EOF
[Unit]
Description=Kubernetes API Server
Documentation=https://github.com/kubernetes/kubernetes
After=network.target

[Service]
ExecStart=/usr/local/bin/kube-apiserver \\
      --v=2  \\
      --allow-privileged=true  \\
      --bind-address=0.0.0.0  \\
      --secure-port=6443  \\
      --advertise-address=192.168.1.32 \\
      --service-cluster-ip-range=10.96.0.0/12,fd00:1111::/112  \\
      --service-node-port-range=30000-32767  \\
      --etcd-servers=https://192.168.1.31:2379,https://192.168.1.32:2379,https://192.168.1.33:2379 \\
      --etcd-cafile=/etc/etcd/ssl/etcd-ca.pem  \\
      --etcd-certfile=/etc/etcd/ssl/etcd.pem  \\
      --etcd-keyfile=/etc/etcd/ssl/etcd-key.pem  \\
      --client-ca-file=/etc/kubernetes/pki/ca.pem  \\
      --tls-cert-file=/etc/kubernetes/pki/apiserver.pem  \\
      --tls-private-key-file=/etc/kubernetes/pki/apiserver-key.pem  \\
      --kubelet-client-certificate=/etc/kubernetes/pki/apiserver.pem  \\
      --kubelet-client-key=/etc/kubernetes/pki/apiserver-key.pem  \\
      --service-account-key-file=/etc/kubernetes/pki/sa.pub  \\
      --service-account-signing-key-file=/etc/kubernetes/pki/sa.key  \\
      --service-account-issuer=https://kubernetes.default.svc.cluster.local \\
      --kubelet-preferred-address-types=InternalIP,ExternalIP,Hostname  \\
      --enable-admission-plugins=NamespaceLifecycle,LimitRanger,ServiceAccount,DefaultStorageClass,DefaultTolerationSeconds,NodeRestriction,ResourceQuota  \\
      --authorization-mode=Node,RBAC  \\
      --enable-bootstrap-token-auth=true  \\
      --requestheader-client-ca-file=/etc/kubernetes/pki/front-proxy-ca.pem  \\
      --proxy-client-cert-file=/etc/kubernetes/pki/front-proxy-client.pem  \\
      --proxy-client-key-file=/etc/kubernetes/pki/front-proxy-client-key.pem  \\
      --requestheader-allowed-names=aggregator  \\
      --requestheader-group-headers=X-Remote-Group  \\
      --requestheader-extra-headers-prefix=X-Remote-Extra-  \\
      --requestheader-username-headers=X-Remote-User \\
      --enable-aggregator-routing=true

Restart=on-failure
RestartSec=10s
LimitNOFILE=65535

[Install]
WantedBy=multi-user.target

EOF

6.1.3master03节点配置

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# 若关闭IPv6 删除 --service-cluster-ip-range 的 IPv6 即可
cat > /usr/lib/systemd/system/kube-apiserver.service  << EOF
[Unit]
Description=Kubernetes API Server
Documentation=https://github.com/kubernetes/kubernetes
After=network.target

[Service]
ExecStart=/usr/local/bin/kube-apiserver \\
      --v=2  \\
      --allow-privileged=true  \\
      --bind-address=0.0.0.0  \\
      --secure-port=6443  \\
      --advertise-address=192.168.1.33 \\
      --service-cluster-ip-range=10.96.0.0/12,fd00:1111::/112  \\
      --service-node-port-range=30000-32767  \\
      --etcd-servers=https://192.168.1.31:2379,https://192.168.1.32:2379,https://192.168.1.33:2379 \\
      --etcd-cafile=/etc/etcd/ssl/etcd-ca.pem  \\
      --etcd-certfile=/etc/etcd/ssl/etcd.pem  \\
      --etcd-keyfile=/etc/etcd/ssl/etcd-key.pem  \\
      --client-ca-file=/etc/kubernetes/pki/ca.pem  \\
      --tls-cert-file=/etc/kubernetes/pki/apiserver.pem  \\
      --tls-private-key-file=/etc/kubernetes/pki/apiserver-key.pem  \\
      --kubelet-client-certificate=/etc/kubernetes/pki/apiserver.pem  \\
      --kubelet-client-key=/etc/kubernetes/pki/apiserver-key.pem  \\
      --service-account-key-file=/etc/kubernetes/pki/sa.pub  \\
      --service-account-signing-key-file=/etc/kubernetes/pki/sa.key  \\
      --service-account-issuer=https://kubernetes.default.svc.cluster.local \\
      --kubelet-preferred-address-types=InternalIP,ExternalIP,Hostname  \\
      --enable-admission-plugins=NamespaceLifecycle,LimitRanger,ServiceAccount,DefaultStorageClass,DefaultTolerationSeconds,NodeRestriction,ResourceQuota  \\
      --authorization-mode=Node,RBAC  \\
      --enable-bootstrap-token-auth=true  \\
      --requestheader-client-ca-file=/etc/kubernetes/pki/front-proxy-ca.pem  \\
      --proxy-client-cert-file=/etc/kubernetes/pki/front-proxy-client.pem  \\
      --proxy-client-key-file=/etc/kubernetes/pki/front-proxy-client-key.pem  \\
      --requestheader-allowed-names=aggregator  \\
      --requestheader-group-headers=X-Remote-Group  \\
      --requestheader-extra-headers-prefix=X-Remote-Extra-  \\
      --requestheader-username-headers=X-Remote-User \\
      --enable-aggregator-routing=true

Restart=on-failure
RestartSec=10s
LimitNOFILE=65535

[Install]
WantedBy=multi-user.target

EOF

参数

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详见完整版 https://github.com/cby-chen/Kubernetes

6.1.4启动apiserver（所有master节点）

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systemctl daemon-reload
systemctl enable --now kube-apiserver.service
systemctl restart kube-apiserver.service
systemctl status kube-apiserver.service

6.2.配置kube-controller-manager service

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# 所有master节点配置，且配置相同
# 172.16.0.0/12为pod网段，按需求设置你自己的网段

cat > /usr/lib/systemd/system/kube-controller-manager.service << EOF
[Unit]
Description=Kubernetes Controller Manager
Documentation=https://github.com/kubernetes/kubernetes
After=network.target

[Service]
ExecStart=/usr/local/bin/kube-controller-manager \\
      --v=2 \\
      --bind-address=0.0.0.0 \\
      --root-ca-file=/etc/kubernetes/pki/ca.pem \\
      --cluster-signing-cert-file=/etc/kubernetes/pki/ca.pem \\
      --cluster-signing-key-file=/etc/kubernetes/pki/ca-key.pem \\
      --service-account-private-key-file=/etc/kubernetes/pki/sa.key \\
      --kubeconfig=/etc/kubernetes/controller-manager.kubeconfig \\
      --leader-elect=true \\
      --use-service-account-credentials=true \\
      --node-monitor-grace-period=40s \\
      --node-monitor-period=5s \\
      --controllers=*,bootstrapsigner,tokencleaner \\
      --allocate-node-cidrs=true \\
      --service-cluster-ip-range=10.96.0.0/12,fd00:1111::/112 \\
      --cluster-cidr=172.16.0.0/12,fc00:2222::/112 \\
      --node-cidr-mask-size-ipv4=24 \\
      --node-cidr-mask-size-ipv6=120 \\
      --requestheader-client-ca-file=/etc/kubernetes/pki/front-proxy-ca.pem

Restart=always
RestartSec=10s

[Install]
WantedBy=multi-user.target
EOF



# 关闭IPv6 
# 删除 --service-cluster-ip-range 中的IPv6地址
# 删除 --cluster-cidr 中的IPv6地址
# 删除 --node-cidr-mask-size-ipv6=120
cat > /usr/lib/systemd/system/kube-controller-manager.service << EOF
[Unit]
Description=Kubernetes Controller Manager
Documentation=https://github.com/kubernetes/kubernetes
After=network.target

[Service]
ExecStart=/usr/local/bin/kube-controller-manager \\
      --v=2 \\
      --bind-address=0.0.0.0 \\
      --root-ca-file=/etc/kubernetes/pki/ca.pem \\
      --cluster-signing-cert-file=/etc/kubernetes/pki/ca.pem \\
      --cluster-signing-key-file=/etc/kubernetes/pki/ca-key.pem \\
      --service-account-private-key-file=/etc/kubernetes/pki/sa.key \\
      --kubeconfig=/etc/kubernetes/controller-manager.kubeconfig \\
      --leader-elect=true \\
      --use-service-account-credentials=true \\
      --node-monitor-grace-period=40s \\
      --node-monitor-period=5s \\
      --controllers=*,bootstrapsigner,tokencleaner \\
      --allocate-node-cidrs=true \\
      --service-cluster-ip-range=10.96.0.0/12 \\
      --cluster-cidr=172.16.0.0/12 \\
      --node-cidr-mask-size-ipv4=24 \\
      --requestheader-client-ca-file=/etc/kubernetes/pki/front-proxy-ca.pem

Restart=always
RestartSec=10s

[Install]
WantedBy=multi-user.target
EOF

参数

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详见完整版 https://github.com/cby-chen/Kubernetes

6.2.1启动kube-controller-manager，并查看状态

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systemctl daemon-reload
systemctl enable --now kube-controller-manager.service
systemctl restart kube-controller-manager.service
systemctl status kube-controller-manager.service

6.3.配置kube-scheduler service

6.3.1所有master节点配置，且配置相同

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cat > /usr/lib/systemd/system/kube-scheduler.service << EOF

[Unit]
Description=Kubernetes Scheduler
Documentation=https://github.com/kubernetes/kubernetes
After=network.target

[Service]
ExecStart=/usr/local/bin/kube-scheduler \\
      --v=2 \\
      --bind-address=0.0.0.0 \\
      --leader-elect=true \\
      --kubeconfig=/etc/kubernetes/scheduler.kubeconfig

Restart=always
RestartSec=10s

[Install]
WantedBy=multi-user.target

EOF

参数

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详见完整版 https://github.com/cby-chen/Kubernetes

6.3.2启动并查看服务状态

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systemctl daemon-reload
systemctl enable --now kube-scheduler.service
systemctl restart kube-scheduler.service
systemctl status kube-scheduler.service

7.TLS Bootstrapping配置

7.1在master01上配置

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# 在《5.高可用配置》选择使用那种高可用方案
# 若使用 haproxy、keepalived 那么为 `--server=https://192.168.1.36:9443`
# 若使用 nginx方案，那么为 `--server=https://127.0.0.1:8443`

kubectl config set-cluster kubernetes     \
--certificate-authority=/etc/kubernetes/pki/ca.pem     \
--embed-certs=true     --server=https://127.0.0.1:8443     \
--kubeconfig=/etc/kubernetes/bootstrap-kubelet.kubeconfig

# 可以使用这个命令进行创建token也可以使用我的
echo "$(head -c 6 /dev/urandom | md5sum | head -c 6)"."$(head -c 16 /dev/urandom | md5sum | head -c 16)"

kubectl config set-credentials tls-bootstrap-token-user     \
--token=c8ad9c.2e4d610cf3e7426e \
--kubeconfig=/etc/kubernetes/bootstrap-kubelet.kubeconfig

kubectl config set-context tls-bootstrap-token-user@kubernetes     \
--cluster=kubernetes     \
--user=tls-bootstrap-token-user     \
--kubeconfig=/etc/kubernetes/bootstrap-kubelet.kubeconfig

kubectl config use-context tls-bootstrap-token-user@kubernetes     \
--kubeconfig=/etc/kubernetes/bootstrap-kubelet.kubeconfig

# token的位置在bootstrap.secret.yaml，如果修改的话到这个文件修改
mkdir -p /root/.kube ; cp /etc/kubernetes/admin.kubeconfig /root/.kube/config

7.2查看集群状态，没问题的话继续后续操作

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# 1.28 版本只能查看到一个etcd 属于正常现象
# export ETCDCTL_API=3
# etcdctl --endpoints="192.168.1.33:2379,192.168.1.32:2379,192.168.1.31:2379" --cacert=/etc/kubernetes/pki/etcd/etcd-ca.pem --cert=/etc/kubernetes/pki/etcd/etcd.pem --key=/etc/kubernetes/pki/etcd/etcd-key.pem  endpoint status --write-out=table

kubectl get cs
Warning: v1 ComponentStatus is deprecated in v1.19+
NAME                 STATUS    MESSAGE   ERROR
scheduler            Healthy   ok        
controller-manager   Healthy   ok        
etcd-0               Healthy   ok 

# 写入bootstrap-token
cat > bootstrap.secret.yaml << EOF
apiVersion: v1
kind: Secret
metadata:
  name: bootstrap-token-c8ad9c
  namespace: kube-system
type: bootstrap.kubernetes.io/token
stringData:
  description: "The default bootstrap token generated by 'kubelet '."
  token-id: c8ad9c
  token-secret: 2e4d610cf3e7426e
  usage-bootstrap-authentication: "true"
  usage-bootstrap-signing: "true"
  auth-extra-groups:  system:bootstrappers:default-node-token,system:bootstrappers:worker,system:bootstrappers:ingress

---
apiVersion: rbac.authorization.k8s.io/v1
kind: ClusterRoleBinding
metadata:
  name: kubelet-bootstrap
roleRef:
  apiGroup: rbac.authorization.k8s.io
  kind: ClusterRole
  name: system:node-bootstrapper
subjects:
- apiGroup: rbac.authorization.k8s.io
  kind: Group
  name: system:bootstrappers:default-node-token
---
apiVersion: rbac.authorization.k8s.io/v1
kind: ClusterRoleBinding
metadata:
  name: node-autoapprove-bootstrap
roleRef:
  apiGroup: rbac.authorization.k8s.io
  kind: ClusterRole
  name: system:certificates.k8s.io:certificatesigningrequests:nodeclient
subjects:
- apiGroup: rbac.authorization.k8s.io
  kind: Group
  name: system:bootstrappers:default-node-token
---
apiVersion: rbac.authorization.k8s.io/v1
kind: ClusterRoleBinding
metadata:
  name: node-autoapprove-certificate-rotation
roleRef:
  apiGroup: rbac.authorization.k8s.io
  kind: ClusterRole
  name: system:certificates.k8s.io:certificatesigningrequests:selfnodeclient
subjects:
- apiGroup: rbac.authorization.k8s.io
  kind: Group
  name: system:nodes
---
apiVersion: rbac.authorization.k8s.io/v1
kind: ClusterRole
metadata:
  annotations:
    rbac.authorization.kubernetes.io/autoupdate: "true"
  labels:
    kubernetes.io/bootstrapping: rbac-defaults
  name: system:kube-apiserver-to-kubelet
rules:
  - apiGroups:
      - ""
    resources:
      - nodes/proxy
      - nodes/stats
      - nodes/log
      - nodes/spec
      - nodes/metrics
    verbs:
      - "*"
---
apiVersion: rbac.authorization.k8s.io/v1
kind: ClusterRoleBinding
metadata:
  name: system:kube-apiserver
  namespace: ""
roleRef:
  apiGroup: rbac.authorization.k8s.io
  kind: ClusterRole
  name: system:kube-apiserver-to-kubelet
subjects:
  - apiGroup: rbac.authorization.k8s.io
    kind: User
    name: kube-apiserver
EOF
# 切记执行，别忘记！！！
kubectl create -f bootstrap.secret.yaml

8.node节点配置

8.1.在master01上将证书复制到node节点

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cd /etc/kubernetes/

for NODE in k8s-master02 k8s-master03 k8s-node01 k8s-node02; do ssh $NODE mkdir -p /etc/kubernetes/pki; for FILE in pki/ca.pem pki/ca-key.pem pki/front-proxy-ca.pem bootstrap-kubelet.kubeconfig kube-proxy.kubeconfig; do scp /etc/kubernetes/$FILE $NODE:/etc/kubernetes/${FILE}; done; done

8.2.kubelet配置

注意 ： 8.2.1 和 8.2.2 需要和 上方 2.1 和 2.2 对应起来

8.2.1当使用docker作为Runtime

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cat > /usr/lib/systemd/system/kubelet.service << EOF

[Unit]
Description=Kubernetes Kubelet
Documentation=https://github.com/kubernetes/kubernetes
After=network-online.target firewalld.service cri-docker.service docker.socket containerd.service
Wants=network-online.target
Requires=docker.socket containerd.service

[Service]
ExecStart=/usr/local/bin/kubelet \\
    --bootstrap-kubeconfig=/etc/kubernetes/bootstrap-kubelet.kubeconfig  \\
    --kubeconfig=/etc/kubernetes/kubelet.kubeconfig \\
    --config=/etc/kubernetes/kubelet-conf.yml \\
    --container-runtime-endpoint=unix:///run/cri-dockerd.sock  \\
    --node-labels=node.kubernetes.io/node= 


[Install]
WantedBy=multi-user.target
EOF

# IPv6示例
# 若不使用IPv6那么忽略此项即可
# 下方 --node-ip 更换为每个节点的IP即可
**cat > /usr/lib/systemd/system/kubelet.service << EOF
[Unit]
Description=Kubernetes Kubelet
Documentation=https://github.com/kubernetes/kubernetes
After=network-online.target firewalld.service cri-docker.service docker.socket containerd.service
Wants=network-online.target
Requires=docker.socket containerd.service

[Service]
ExecStart=/usr/local/bin/kubelet \\
    --bootstrap-kubeconfig=/etc/kubernetes/bootstrap-kubelet.kubeconfig  \\
    --kubeconfig=/etc/kubernetes/kubelet.kubeconfig \\
    --config=/etc/kubernetes/kubelet-conf.yml \\
    --container-runtime-endpoint=unix:///run/cri-dockerd.sock  \\
    --node-labels=node.kubernetes.io/node=   \\
    --node-ip=192.168.1.31,fc00::31
[Install]
WantedBy=multi-user.target
EOF**

8.2.2当使用Containerd作为Runtime

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mkdir -p /var/lib/kubelet /var/log/kubernetes /etc/systemd/system/kubelet.service.d /etc/kubernetes/manifests/

# 所有k8s节点配置kubelet service
cat > /usr/lib/systemd/system/kubelet.service << EOF

[Unit]
Description=Kubernetes Kubelet
Documentation=https://github.com/kubernetes/kubernetes
After=network-online.target firewalld.service containerd.service
Wants=network-online.target
Requires=containerd.service

[Service]
ExecStart=/usr/local/bin/kubelet \\
    --bootstrap-kubeconfig=/etc/kubernetes/bootstrap-kubelet.kubeconfig  \\
    --kubeconfig=/etc/kubernetes/kubelet.kubeconfig \\
    --config=/etc/kubernetes/kubelet-conf.yml \\
    --container-runtime-endpoint=unix:///run/containerd/containerd.sock  \\
    --node-labels=node.kubernetes.io/node=

[Install]
WantedBy=multi-user.target
EOF

# IPv6示例
# 若不使用IPv6那么忽略此项即可
# 下方 --node-ip 更换为每个节点的IP即可
cat > /usr/lib/systemd/system/kubelet.service << EOF

[Unit]
Description=Kubernetes Kubelet
Documentation=https://github.com/kubernetes/kubernetes
After=network-online.target firewalld.service containerd.service
Wants=network-online.target
Requires=containerd.service

[Service]
ExecStart=/usr/local/bin/kubelet \\
    --bootstrap-kubeconfig=/etc/kubernetes/bootstrap-kubelet.kubeconfig  \\
    --kubeconfig=/etc/kubernetes/kubelet.kubeconfig \\
    --config=/etc/kubernetes/kubelet-conf.yml \\
    --container-runtime-endpoint=unix:///run/containerd/containerd.sock  \\
    --node-labels=node.kubernetes.io/node=  \\
    --node-ip=192.168.1.31,fc00::31
[Install]
WantedBy=multi-user.target
EOF

8.2.3所有k8s节点创建kubelet的配置文件

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cat > /etc/kubernetes/kubelet-conf.yml <<EOF
apiVersion: kubelet.config.k8s.io/v1beta1
kind: KubeletConfiguration
address: 0.0.0.0
port: 10250
readOnlyPort: 10255
authentication:
  anonymous:
    enabled: false
  webhook:
    cacheTTL: 2m0s
    enabled: true
  x509:
    clientCAFile: /etc/kubernetes/pki/ca.pem
authorization:
  mode: Webhook
  webhook:
    cacheAuthorizedTTL: 5m0s
    cacheUnauthorizedTTL: 30s
cgroupDriver: systemd
cgroupsPerQOS: true
clusterDNS:
- 10.96.0.10
clusterDomain: cluster.local
containerLogMaxFiles: 5
containerLogMaxSize: 10Mi
contentType: application/vnd.kubernetes.protobuf
cpuCFSQuota: true
cpuManagerPolicy: none
cpuManagerReconcilePeriod: 10s
enableControllerAttachDetach: true
enableDebuggingHandlers: true
enforceNodeAllocatable:
- pods
eventBurst: 10
eventRecordQPS: 5
evictionHard:
  imagefs.available: 15%
  memory.available: 100Mi
  nodefs.available: 10%
  nodefs.inodesFree: 5%
evictionPressureTransitionPeriod: 5m0s
failSwapOn: true
fileCheckFrequency: 20s
hairpinMode: promiscuous-bridge
healthzBindAddress: 127.0.0.1
healthzPort: 10248
httpCheckFrequency: 20s
imageGCHighThresholdPercent: 85
imageGCLowThresholdPercent: 80
imageMinimumGCAge: 2m0s
iptablesDropBit: 15
iptablesMasqueradeBit: 14
kubeAPIBurst: 10
kubeAPIQPS: 5
makeIPTablesUtilChains: true
maxOpenFiles: 1000000
maxPods: 110
nodeStatusUpdateFrequency: 10s
oomScoreAdj: -999
podPidsLimit: -1
registryBurst: 10
registryPullQPS: 5
resolvConf: /etc/resolv.conf
rotateCertificates: true
runtimeRequestTimeout: 2m0s
serializeImagePulls: true
staticPodPath: /etc/kubernetes/manifests
streamingConnectionIdleTimeout: 4h0m0s
syncFrequency: 1m0s
volumeStatsAggPeriod: 1m0s
EOF

8.2.4启动kubelet

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systemctl daemon-reload
systemctl enable --now kubelet.service
systemctl restart kubelet.service
systemctl status kubelet.service

8.2.5查看集群

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[root@k8s-master01 ~]# kubectl  get node
NAME           STATUS     ROLES    AGE   VERSION
k8s-master01   NotReady   <none>   15s   v1.35.0
k8s-master02   NotReady   <none>   14s   v1.35.0
k8s-master03   NotReady   <none>   12s   v1.35.0
k8s-node01     NotReady   <none>   11s   v1.35.0
k8s-node02     NotReady   <none>   9s    v1.35.0
[root@k8s-master01 ~]#

8.2.6查看容器运行时

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[root@k8s-master01 ~]# kubectl describe node | grep Runtime
  Container Runtime Version:  containerd://2.2.1
  Container Runtime Version:  containerd://2.2.1
  Container Runtime Version:  containerd://2.2.1
  Container Runtime Version:  containerd://2.2.1
  Container Runtime Version:  containerd://2.2.1
[root@k8s-master01 ~]# kubectl describe node | grep Runtime
  Container Runtime Version:  docker://29.1.3
  Container Runtime Version:  docker://29.1.3
  Container Runtime Version:  docker://29.1.3
  Container Runtime Version:  docker://29.1.3
  Container Runtime Version:  docker://29.1.3
[root@k8s-master01 ~]#

8.3.kube-proxy配置

8.3.1将kubeconfig发送至其他节点

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# master-1执行
for NODE in k8s-master02 k8s-master03 k8s-node01 k8s-node02; do scp /etc/kubernetes/kube-proxy.kubeconfig $NODE:/etc/kubernetes/kube-proxy.kubeconfig; done

8.3.2所有k8s节点添加kube-proxy的service文件

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cat >  /usr/lib/systemd/system/kube-proxy.service << EOF
[Unit]
Description=Kubernetes Kube Proxy
Documentation=https://github.com/kubernetes/kubernetes
After=network.target

[Service]
ExecStart=/usr/local/bin/kube-proxy \\
  --config=/etc/kubernetes/kube-proxy.yaml \\
  --cluster-cidr=172.16.0.0/12,fc00:2222::/112 \\
  --v=2
Restart=always
RestartSec=10s

[Install]
WantedBy=multi-user.target

EOF


# 关闭IPv6
# 删除 --cluster-cidr 的IPv6地址
cat >  /usr/lib/systemd/system/kube-proxy.service << EOF
[Unit]
Description=Kubernetes Kube Proxy
Documentation=https://github.com/kubernetes/kubernetes
After=network.target

[Service]
ExecStart=/usr/local/bin/kube-proxy \\
  --config=/etc/kubernetes/kube-proxy.yaml \\
  --cluster-cidr=172.16.0.0/12 \\
  --v=2
Restart=always
RestartSec=10s

[Install]
WantedBy=multi-user.target

EOF

8.3.3所有k8s节点添加kube-proxy的配置

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cat > /etc/kubernetes/kube-proxy.yaml << EOF
apiVersion: kubeproxy.config.k8s.io/v1alpha1
bindAddress: 0.0.0.0
clientConnection:
  acceptContentTypes: ""
  burst: 10
  contentType: application/vnd.kubernetes.protobuf
  kubeconfig: /etc/kubernetes/kube-proxy.kubeconfig
  qps: 5
clusterCIDR: 172.16.0.0/12,fc00:2222::/112
configSyncPeriod: 15m0s
conntrack:
  max: null
  maxPerCore: 32768
  min: 131072
  tcpCloseWaitTimeout: 1h0m0s
  tcpEstablishedTimeout: 24h0m0s
enableProfiling: false
healthzBindAddress: 0.0.0.0:10256
hostnameOverride: ""
iptables:
  masqueradeAll: false
  masqueradeBit: 14
  minSyncPeriod: 0s
  syncPeriod: 30s
ipvs:
  masqueradeAll: true
  minSyncPeriod: 5s
  scheduler: "rr"
  syncPeriod: 30s
kind: KubeProxyConfiguration
metricsBindAddress: 127.0.0.1:10249
mode: "ipvs"
nodePortAddresses: null
oomScoreAdj: -999
portRange: ""
udpIdleTimeout: 250ms
EOF

8.3.4启动kube-proxy

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systemctl daemon-reload
systemctl enable --now kube-proxy.service
systemctl restart kube-proxy.service
systemctl status kube-proxy.service

9.安装网络插件

注意 9.1 和 9.2 二选其一即可，建议在此处创建好快照后在进行操作，后续出问题可以回滚

** centos7 要升级libseccomp 不然 无法安装网络插件**

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# https://github.com/opencontainers/runc/releases
# 升级runc
# wget https://github.com/opencontainers/runc/releases/download/v1.1.12/runc.amd64

install -m 755 runc.amd64 /usr/local/sbin/runc
cp -p /usr/local/sbin/runc  /usr/local/bin/runc
cp -p /usr/local/sbin/runc  /usr/bin/runc

#查看当前版本
[root@k8s-master-1 ~]# rpm -qa | grep libseccomp
libseccomp-2.5.2-2.el9.x86_64

#下载高于2.4以上的包
# yum -y install http://rpmfind.net/linux/centos/8-stream/BaseOS/x86_64/os/Packages/libseccomp-2.5.1-1.el8.x86_64.rpm
# 清华源
# yum -y install https://mirrors.tuna.tsinghua.edu.cn/centos/8-stream/BaseOS/x86_64/os/Packages/libseccomp-2.5.1-1.el8.x86_64.rpm

9.1安装Calico

9.1.1更改calico网段

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# 安装operator
kubectl create -f https://raw.githubusercontent.com/projectcalico/calico/v3.31.2/manifests/tigera-operator.yaml


# 下载配置文件
curl https://raw.githubusercontent.com/projectcalico/calico/v3.31.2/manifests/custom-resources.yaml -O




# 修改地址池
vim custom-resources.yaml
apiVersion: operator.tigera.io/v1
kind: Installation
metadata:
  name: default
spec:
  calicoNetwork:
    ipPools:
    - name: default-ipv4-ippool
      blockSize: 26
      cidr: 172.16.0.0/12
      encapsulation: VXLANCrossSubnet
      natOutgoing: Enabled
      nodeSelector: all()




# 修改地址池
vim custom-resources.yaml
apiVersion: operator.tigera.io/v1
kind: Installation
metadata:
  name: default
spec:
  calicoNetwork:
    ipPools:
    - name: ipv4-ippool
      cidr: 172.16.0.0/12
      blockSize: 26
      encapsulation: IPIP
      natOutgoing: Enabled
      nodeSelector: all()
    - name: ipv6-ippool
      cidr: "fd00:100::/64"
      blockSize: 122
      encapsulation: None
      natOutgoing: Enabled
      nodeSelector: all()
    nodeAddressAutodetectionV4:
      interface: "eth.*|en.*"
    nodeAddressAutodetectionV6:
      interface: "eth.*|en.*"

# 执行安装
kubectl create -f custom-resources.yaml



# 安装客户端
curl -L https://github.com/projectcalico/calico/releases/download/v3.30.3/calicoctl-linux-amd64 -o calicoctl


# 给客户端添加执行权限
chmod +x ./calicoctl


# 查看集群节点
./calicoctl get nodes --allow-version-mismatch
# 查看集群节点状态
./calicoctl node status --allow-version-mismatch
#查看地址池
./calicoctl get ipPool --allow-version-mismatch
./calicoctl get ipPool --allow-version-mismatch -o yaml


9.1.2查看容器状态

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# calico 初始化会很慢 需要耐心等待一下，大约十分钟左右
[root@k8s-master01 kubernetes-v1.35.0]# kubectl get pod -A
NAMESPACE         NAME                                       READY   STATUS    RESTARTS   AGE
calico-system     calico-apiserver-8944cd746-8cf9n           1/1     Running   0          3m17s
calico-system     calico-apiserver-8944cd746-kdvx4           1/1     Running   0          3m17s
calico-system     calico-kube-controllers-757dc6b956-bpx2m   1/1     Running   0          3m16s
calico-system     calico-node-89xvc                          1/1     Running   0          3m16s
calico-system     calico-node-95dgk                          1/1     Running   0          3m16s
calico-system     calico-node-jbm6g                          1/1     Running   0          3m16s
calico-system     calico-node-p5mb2                          1/1     Running   0          3m16s
calico-system     calico-node-t68xn                          1/1     Running   0          3m16s
calico-system     calico-typha-68687d94bd-7pcmq              1/1     Running   0          3m14s
calico-system     calico-typha-68687d94bd-cfclr              1/1     Running   0          3m16s
calico-system     calico-typha-68687d94bd-t62kd              1/1     Running   0          3m14s
calico-system     csi-node-driver-5mwsv                      2/2     Running   0          3m16s
calico-system     csi-node-driver-jtp56                      2/2     Running   0          3m16s
calico-system     csi-node-driver-ncd7q                      2/2     Running   0          3m16s
calico-system     csi-node-driver-nvb6d                      2/2     Running   0          3m16s
calico-system     csi-node-driver-s6dk9                      2/2     Running   0          3m16s
calico-system     goldmane-576ddf78d8-4zkch                  1/1     Running   0          3m17s
calico-system     whisker-58576c6584-nv246                   2/2     Running   0          2m43s
tigera-operator   tigera-operator-5cd7bd49c7-rwb54           1/1     Running   0          3m34s
[root@k8s-master01 kubernetes-v1.35.0]#


9.2 安装cilium

9.2.1 安装helm

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# [root@k8s-master01 ~]# curl -fsSL -o get_helm.sh https://raw.githubusercontent.com/helm/helm/main/scripts/get-helm-3
# [root@k8s-master01 ~]# chmod 700 get_helm.sh
# [root@k8s-master01 ~]# ./get_helm.sh

# wget https://get.helm.sh/helm-v4.0.4-linux-amd64.tar.gz
tar xvf helm-*-linux-amd64.tar.gz
cp linux-amd64/helm /usr/local/bin/

9.2.2 安装cilium

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# 添加源
helm repo add cilium https://helm.cilium.io

# 修改为国内源
helm pull cilium/cilium
tar xvf cilium-*.tgz
cd cilium/

# sed -i "s#quay.io/#quay.m.daocloud.io/#g" values.yaml

# 默认参数安装
helm install  cilium ./cilium/ -n kube-system

helm install cilium cilium/cilium --version 1.17.4 -n kube-system

# 启用ipv6
# helm install cilium cilium/cilium -n cilium-system --set ipv6.enabled=true 


# 启用路由信息和监控插件
# helm install cilium ./cilium/ --namespace kube-system --set ipv6.enabled=true --set hubble.relay.enabled=true --set hubble.ui.enabled=true --set prometheus.enabled=true --set operator.prometheus.enabled=true --set hubble.enabled=true --set hubble.metrics.enabled="{dns,drop,tcp,flow,port-distribution,icmp,http}"

9.2.3 查看

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[root@k8s-master01 ~]# kubectl  get pod -A | grep cil
NAMESPACE     NAME                               READY   STATUS    RESTARTS   AGE
kube-system   cilium-2tnfb                       1/1     Running   0          60s
kube-system   cilium-5tgcb                       1/1     Running   0          60s
kube-system   cilium-6shf5                       1/1     Running   0          60s
kube-system   cilium-ccbcx                       1/1     Running   0          60s
kube-system   cilium-cppft                       1/1     Running   0          60s
kube-system   cilium-operator-675f685d59-7q27q   1/1     Running   0          60s
kube-system   cilium-operator-675f685d59-kwmqz   1/1     Running   0          60s
[root@k8s-master01 ~]#

9.2.4 下载专属监控面板

安装时候没有创建 监控可以忽略

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[root@k8s-master01 yaml]# wget https://raw.githubusercontent.com/cilium/cilium/1.12.1/examples/kubernetes/addons/prometheus/monitoring-example.yaml

[root@k8s-master01 yaml]# sed -i "s#docker.io/#jockerhub.com/#g" monitoring-example.yaml

[root@k8s-master01 yaml]# kubectl  apply -f monitoring-example.yaml
namespace/cilium-monitoring created
serviceaccount/prometheus-k8s created
configmap/grafana-config created
configmap/grafana-cilium-dashboard created
configmap/grafana-cilium-operator-dashboard created
configmap/grafana-hubble-dashboard created
configmap/prometheus created
clusterrole.rbac.authorization.k8s.io/prometheus created
clusterrolebinding.rbac.authorization.k8s.io/prometheus created
service/grafana created
service/prometheus created
deployment.apps/grafana created
deployment.apps/prometheus created
[root@k8s-master01 yaml]#

9.2.5 修改为NodePort

安装时候没有创建 监控可以忽略

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[root@k8s-master01 yaml]# kubectl  edit svc  -n kube-system hubble-ui
service/hubble-ui edited
[root@k8s-master01 yaml]#
[root@k8s-master01 yaml]# kubectl  edit svc  -n cilium-monitoring grafana
service/grafana edited
[root@k8s-master01 yaml]#
[root@k8s-master01 yaml]# kubectl  edit svc  -n cilium-monitoring prometheus
service/prometheus edited
[root@k8s-master01 yaml]#

type: NodePort

9.2.6 查看端口

安装时候没有创建 监控可以忽略

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[root@k8s-master01 yaml]# kubectl get svc -A | grep NodePort
cilium-monitoring   grafana          NodePort    10.111.74.3      <none>        3000:32648/TCP   74s
cilium-monitoring   prometheus       NodePort    10.107.240.124   <none>        9090:30495/TCP   74s
kube-system         hubble-ui        NodePort    10.96.185.26     <none>        80:31568/TCP     99s

9.2.7 访问

安装时候没有创建 监控可以忽略

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http://192.168.1.31:32648
http://192.168.1.31:30495
http://192.168.1.31:31568

10.安装CoreDNS

10.1以下步骤只在master01操作

10.1.1修改文件

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# 下载tgz包
helm repo add coredns https://coredns.github.io/helm
helm pull coredns/coredns
tar xvf coredns-*.tgz
cd coredns/

# 修改IP地址
vim values.yaml
cat values.yaml | grep clusterIP:
clusterIP: "10.96.0.10"

# 示例
---
service:
# clusterIP: ""
# clusterIPs: []
# loadBalancerIP: ""
# externalIPs: []
# externalTrafficPolicy: ""
# ipFamilyPolicy: ""
  # The name of the Service
  # If not set, a name is generated using the fullname template
  clusterIP: "10.96.0.10"
  name: ""
  annotations: {}
---

# 修改为国内源
sed -i "s#registry.k8s.io/#k8s.m.daocloud.io/#g" values.yaml

# 默认参数安装
helm install  coredns ./coredns/ -n kube-system

11.安装Metrics Server

11.1以下步骤只在master01操作

11.1.1安装Metrics-server

在新版的Kubernetes中系统资源的采集均使用Metrics-server，可以通过Metrics采集节点和Pod的内存、磁盘、CPU和网络的使用率

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# 下载 
wget https://github.com/kubernetes-sigs/metrics-server/releases/latest/download/components.yaml -O metrics-server.yaml 

# 修改配置
vim metrics-server.yaml 

---
# 1
    - args:
        - --cert-dir=/tmp
        - --kubelet-preferred-address-types=InternalIP,ExternalIP,Hostname
        - --kubelet-use-node-status-port
        - --metric-resolution=15s
        - --kubelet-insecure-tls
        - --requestheader-client-ca-file=/etc/kubernetes/pki/front-proxy-ca.pem
        - --requestheader-username-headers=X-Remote-User
        - --requestheader-group-headers=X-Remote-Group
        - --requestheader-extra-headers-prefix=X-Remote-Extra-

# 2
        volumeMounts:
        - mountPath: /tmp
          name: tmp-dir
        - name: ca-ssl
          mountPath: /etc/kubernetes/pki

# 3
      volumes:
      - emptyDir: {}
        name: tmp-dir
      - name: ca-ssl
        hostPath:
          path: /etc/kubernetes/pki
---


# 修改为国内源 docker源可选
sed -i "s#registry.k8s.io/#k8s.m.daocloud.io/#g" metrics-server.yaml

# 执行部署
kubectl apply -f metrics-server.yaml

11.1.2稍等片刻查看状态

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kubectl  top node
NAME           CPU(cores)   CPU(%)   MEMORY(bytes)   MEMORY(%)   
k8s-master01   182m         2%       2059Mi          58%         
k8s-master02   104m         1%       1577Mi          44%         
k8s-master03   113m         1%       1516Mi          42%         
k8s-node01     53m          0%       915Mi           25%         
k8s-node02     66m          0%       930Mi           26%

12.集群验证

12.1部署pod资源

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cat<<EOF | kubectl apply -f -
apiVersion: v1
kind: Pod
metadata:
  name: busybox
  namespace: default
spec:
  containers:
  - name: busybox
    image: docker.m.daocloud.io/library/busybox:1.28
    command:
      - sleep
      - "3600"
    imagePullPolicy: IfNotPresent
  restartPolicy: Always
EOF

# 查看
kubectl  get pod
NAME      READY   STATUS    RESTARTS   AGE
busybox   1/1     Running   0          17s

12.2用pod解析默认命名空间中的kubernetes

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# 查看name
kubectl get svc
NAME         TYPE        CLUSTER-IP   EXTERNAL-IP   PORT(S)   AGE
kubernetes   ClusterIP   10.96.0.1    <none>        443/TCP   17h

# 进行解析
kubectl exec  busybox -n default -- nslookup kubernetes
3Server:    10.96.0.10
Address 1: 10.96.0.10 kube-dns.kube-system.svc.cluster.local

Name:      kubernetes
Address 1: 10.96.0.1 kubernetes.default.svc.cluster.local

12.3测试跨命名空间是否可以解析

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# 查看有那些name
kubectl  get svc -A
NAMESPACE     NAME              TYPE        CLUSTER-IP      EXTERNAL-IP   PORT(S)         AGE
default       kubernetes        ClusterIP   10.96.0.1       <none>        443/TCP         76m
kube-system   calico-typha      ClusterIP   10.105.100.82   <none>        5473/TCP        35m
kube-system   coredns-coredns   ClusterIP   10.96.0.10      <none>        53/UDP,53/TCP   8m14s
kube-system   metrics-server    ClusterIP   10.105.60.31    <none>        443/TCP         109s

# 进行解析
kubectl exec  busybox -n default -- nslookup coredns.kube-system
Server:    10.96.0.10
Address 1: 10.96.0.10 coredns-coredns.kube-system.svc.cluster.local

Name:      coredns-coredns.kube-system
Address 1: 10.96.0.10 coredns-coredns.kube-system.svc.cluster.local
[root@k8s-master01 metrics-server]#

12.4每个节点都必须要能访问Kubernetes的kubernetes svc 443和kube-dns的service 53

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telnet 10.96.0.1 443
Trying 10.96.0.1...
Connected to 10.96.0.1.
Escape character is '^]'.

telnet 10.96.0.10 53
Trying 10.96.0.10...
Connected to 10.96.0.10.
Escape character is '^]'.

curl 10.96.0.10:53
curl: (52) Empty reply from server

12.5Pod和Pod之前要能通

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kubectl get po -owide
NAME      READY   STATUS    RESTARTS   AGE   IP              NODE         NOMINATED NODE   READINESS GATES
busybox   1/1     Running   0          17m   172.27.14.193   k8s-node02   <none>           <none>

kubectl get po -n kube-system -owide
NAME                                       READY   STATUS    RESTARTS   AGE     IP               NODE           NOMINATED NODE   READINESS GATES
calico-kube-controllers-76754ff848-pw4xg   1/1     Running   0          38m     172.25.244.193   k8s-master01   <none>           <none>
calico-node-97m55                          1/1     Running   0          38m     192.168.1.34     k8s-node01     <none>           <none>
calico-node-hlz7j                          1/1     Running   0          38m     192.168.1.32     k8s-master02   <none>           <none>
calico-node-jtlck                          1/1     Running   0          38m     192.168.1.33     k8s-master03   <none>           <none>
calico-node-lxfkf                          1/1     Running   0          38m     192.168.1.35     k8s-node02     <none>           <none>
calico-node-t667x                          1/1     Running   0          38m     192.168.1.31     k8s-master01   <none>           <none>
calico-typha-59d75c5dd4-gbhfp              1/1     Running   0          38m     192.168.1.35     k8s-node02     <none>           <none>
coredns-coredns-c5c6d4d9b-bd829            1/1     Running   0          10m     172.25.92.65     k8s-master02   <none>           <none>
metrics-server-7c8b55c754-w7q8v            1/1     Running   0          3m56s   172.17.125.3     k8s-node01     <none>           <none>

# 进入busybox ping其他节点上的pod

kubectl exec -ti busybox -- sh
/ # ping 192.168.1.34
PING 192.168.1.34 (192.168.1.34): 56 data bytes
64 bytes from 192.168.1.34: seq=0 ttl=63 time=0.358 ms
64 bytes from 192.168.1.34: seq=1 ttl=63 time=0.668 ms
64 bytes from 192.168.1.34: seq=2 ttl=63 time=0.637 ms
64 bytes from 192.168.1.34: seq=3 ttl=63 time=0.624 ms
64 bytes from 192.168.1.34: seq=4 ttl=63 time=0.907 ms

# 可以连通证明这个pod是可以跨命名空间和跨主机通信的

12.6创建三个副本，可以看到3个副本分布在不同的节点上（用完可以删了）

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cat<<EOF | kubectl apply -f -
apiVersion: apps/v1
kind: Deployment
metadata:
  name: nginx-deployment
  labels:
    app: nginx
spec:
  replicas: 3
  selector:
    matchLabels:
      app: nginx
  template:
    metadata:
      labels:
        app: nginx
    spec:
      containers:
      - name: nginx
        image: nginx
        ports:
        - containerPort: 80
EOF

kubectl  get pod 
NAME                               READY   STATUS    RESTARTS   AGE
busybox                            1/1     Running   0          6m25s
nginx-deployment-9456bbbf9-4bmvk   1/1     Running   0          8s
nginx-deployment-9456bbbf9-9rcdk   1/1     Running   0          8s
nginx-deployment-9456bbbf9-dqv8s   1/1     Running   0          8s

# 删除nginx
[root@k8s-master01 ~]# kubectl delete deployments nginx-deployment

13.安装dashboard

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# 添加源信息
helm repo add kubernetes-dashboard https://kubernetes.github.io/dashboard/


# 修改为国内源
helm pull kubernetes-dashboard/kubernetes-dashboard
tar xvf kubernetes-dashboard-*.tgz
cd kubernetes-dashboard
sed -i "s#docker.io/#jockerhub.com/#g" values.yaml

# 默认参数安装
helm upgrade --install kubernetes-dashboard ./kubernetes-dashboard/  --create-namespace --namespace kube-system


# 我的集群使用默认参数安装 kubernetes-dashboard-kong 出现异常 8444 端口占用
# 使用下面的命令进行安装，在安装时关闭kong.tls功能
helm upgrade --install kubernetes-dashboard ./kubernetes-dashboard/ --namespace kube-system --set kong.admin.tls.enabled=false

13.1更改dashboard的svc为NodePort，如果已是请忽略

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kubectl edit svc  -n kube-system kubernetes-dashboard-kong-proxy
  type: NodePort

13.2查看端口号

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[root@k8s-master01 ~]# kubectl get svc kubernetes-dashboard-kong-proxy -n kube-system
NAME                              TYPE       CLUSTER-IP     EXTERNAL-IP   PORT(S)         AGE
kubernetes-dashboard-kong-proxy   NodePort   10.100.9.217   <none>        443:31330/TCP   42s
[root@k8s-master01 ~]#

13.3创建token

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cat > dashboard-user.yaml << EOF
apiVersion: v1
kind: ServiceAccount
metadata:
  name: admin-user
  namespace: kube-system
---
apiVersion: rbac.authorization.k8s.io/v1
kind: ClusterRoleBinding
metadata:
  name: admin-user
roleRef:
  apiGroup: rbac.authorization.k8s.io
  kind: ClusterRole
  name: cluster-admin
subjects:
- kind: ServiceAccount
  name: admin-user
  namespace: kube-system
EOF

kubectl  apply -f dashboard-user.yaml

# 创建token
kubectl -n kube-system create token admin-user
eyJhbGciOiJSUzI1NiIsImtpZCI6ImtxelI3UzBZOFl5MGtWU1k0c2QyUVRaOXhQeEFNYTNHWlNyRUFucHBIVGMifQ.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.oDH1uZAWnxeq7gun0ej0ihbSJa6YYZwXcDt9O_tHQsWRi9Lr4kcusG0sm6UntEAy7fHLf6UWLTNHtv-V2lvDjUxRM46xQUzDOQ2v5hBI9NnpcRXQRvMvwn0s6wFeGNr2aFZ9i9aeSJZTdqHOlBjrqxsJtYD6fqDGtJYGdbvUA50nvXPN25a9ofgKvEtWjMA50ojGCr3yqF3vrWruEV77suFeYyIye5YXMnJw_I7Cp3zSEwrAuqfyVAlRv8mYQKxZJsNyban2-wcV10V5qzkofSL4DkgBaqqTDh1aOeD2NJrjmLKPQUt8meLohYy5tMGoyZgx0NGzr-9R71KF8tFHoA

13.4创建长期token

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cat > dashboard-user-token.yaml << EOF
apiVersion: v1
kind: Secret
metadata:
  name: admin-user
  namespace: kube-system
  annotations:
    kubernetes.io/service-account.name: "admin-user"   
type: kubernetes.io/service-account-token  
EOF

kubectl  apply -f dashboard-user-token.yaml

# 查看密码
kubectl get secret admin-user -n kube-system -o jsonpath={".data.token"} | base64 -d

eyJhbGciOiJSUzI1NiIsImtpZCI6ImtxelI3UzBZOFl5MGtWU1k0c2QyUVRaOXhQeEFNYTNHWlNyRUFucHBIVGMifQ.eyJpc3MiOiJrdWJlcm5ldGVzL3NlcnZpY2VhY2NvdW50Iiwia3ViZXJuZXRlcy5pby9zZXJ2aWNlYWNjb3VudC9uYW1lc3BhY2UiOiJrdWJlLXN5c3RlbSIsImt1YmVybmV0ZXMuaW8vc2VydmljZWFjY291bnQvc2VjcmV0Lm5hbWUiOiJhZG1pbi11c2VyIiwia3ViZXJuZXRlcy5pby9zZXJ2aWNlYWNjb3VudC9zZXJ2aWNlLWFjY291bnQubmFtZSI6ImFkbWluLXVzZXIiLCJrdWJlcm5ldGVzLmlvL3NlcnZpY2VhY2NvdW50L3NlcnZpY2UtYWNjb3VudC51aWQiOiJlNzk4MDIzNi01NTI4LTQ2NGMtYWU5Ny0xZWY0MmIxZjc4OGEiLCJzdWIiOiJzeXN0ZW06c2VydmljZWFjY291bnQ6a3ViZS1zeXN0ZW06YWRtaW4tdXNlciJ9.etS6ehzcPjtdipt4zm3L2FJpcbYFlJGLGXmrd8dLMGDw2xVU5XQgZM2gMrHa_rrJPnRKcksaG7qNpasM574D7__CpcktduTM_EsUiOc5i7u9lHDMxsPczyiFxlOp7d8jOdNbqwnlEPA5iYWJ6P3Cj3LiDfFKKHQChKgv8mS588Eh-nnYiMsblWltqvPd_DOJ9JxJ4G4T25yWsbEgpH3uZmXUAyVUDNgDFLNIKRPQXLg5d07rlmgHjJInvEsnrrCs8dxp173iNW8LYxnDNy7pwjrXbvniYiRXjltAwc6F68G590hQaogy9AEVUskeTgBvONPJwkZRHbf0beOL30pT0w

13.5登录dashboard

https://192.168.1.31:31268/

14.部署metallb

14.1 下载部署

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# 下载应用包
wget https://raw.githubusercontent.com/metallb/metallb/v0.15.2/config/manifests/metallb-native.yaml

# 修改镜像地址
# 自行找代理
sed -i "s#quay.io#quay.chenby.cn#g" metallb-native.yaml 
cat metallb-native.yaml | grep image
        image: quay.chenby.cn/metallb/controller:v0.14.5
        image: quay.chenby.cn/metallb/speaker:v0.14.5
        
# 执行部署
kubectl apply -f metallb-native.yaml

# 可以连接国际网络
# kubectl apply -f https://raw.githubusercontent.com/metallb/metallb/v0.15.2/config/manifests/metallb-native.yaml

14.2 查看运行情况

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[root@k8s-master01 kubernetes-v1.35.0]# kubectl -n metallb-system get all 
NAME                              READY   STATUS              RESTARTS   AGE
pod/controller-59f49888d7-chwst   1/1     Running             0          54s
pod/speaker-4nkv6                 0/1     Running             0          54s
pod/speaker-dzfzs                 0/1     ErrImagePull        0          53s
pod/speaker-fmwgn                 0/1     ContainerCreating   0          53s
pod/speaker-jch8z                 0/1     Running             0          53s
pod/speaker-pplvk                 0/1     Running             0          53s

NAME                              TYPE        CLUSTER-IP     EXTERNAL-IP   PORT(S)   AGE
service/metallb-webhook-service   ClusterIP   10.100.70.55   <none>        443/TCP   54s

NAME                     DESIRED   CURRENT   READY   UP-TO-DATE   AVAILABLE   NODE SELECTOR            AGE
daemonset.apps/speaker   5         5         0       5            0           kubernetes.io/os=linux   54s

NAME                         READY   UP-TO-DATE   AVAILABLE   AGE
deployment.apps/controller   1/1     1            1           54s

NAME                                    DESIRED   CURRENT   READY   AGE
replicaset.apps/controller-59f49888d7   1         1         1       54s
[root@k8s-master01 kubernetes-v1.35.0]#


14.3 配置VIP的资源池

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# 新版本metallb使用了CR（Custom Resources），这里我们通过IPAddressPool的CR，进行地址池的定义。
# 如果实例中不设置IPAddressPool选择器L2Advertisement；那么L2Advertisement默认为该实例所有的IPAddressPool相关联。

cat > metallb-config-ipaddresspool.yaml << EOF
apiVersion: metallb.io/v1beta1
kind: IPAddressPool
metadata:
  name: first-pool
  namespace: metallb-system
spec:
  addresses:
  - 192.168.1.71-192.168.1.75
EOF

# 进行L2关联地址池的绑定。

cat > metallb-config-L2Advertisement.yaml << EOF
apiVersion: metallb.io/v1beta1
kind: L2Advertisement
metadata:
  name: example
  namespace: metallb-system
spec:
  ipAddressPools:
  - first-pool
EOF

# 执行部署
kubectl apply -f metallb-config-ipaddresspool.yaml
kubectl apply -f metallb-config-L2Advertisement.yaml

15.ingress安装

15.1执行部署

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# 添加仓库
helm repo add ingress-nginx https://kubernetes.github.io/ingress-nginx
helm repo update

# 拉取仓库
helm pull ingress-nginx/ingress-nginx
tar xvf ingress-nginx-4.14.1.tgz

# 查看镜像地址，若你的环境无法下载这个镜像，那么就需要你自行找镜像 或者更换镜像地址
[root@k8s-master01 ingress-nginx]# cat  values.yaml | grep image | grep -v \#
  image:
  image:
    image: ingress-nginx/controller
      image:
        image: ingress-nginx/kube-webhook-certgen
  image:
    image: defaultbackend-amd64
imagePullSecrets: []
[root@k8s-master01 ingress-nginx]# 

# 我这里的环境可以直接拉取 我直接进行了安装
helm install ingress-nginx ingress-nginx/ingress-nginx \
  --namespace ingress --create-namespace

# 查看完成安装
[root@k8s-master01 ~]# kubectl get all -n ingress
NAME                                            READY   STATUS    RESTARTS   AGE
pod/ingress-nginx-controller-6996967cbb-fplzt   1/1     Running   0          56s

NAME                                         TYPE           CLUSTER-IP       EXTERNAL-IP    PORT(S)                      AGE
service/ingress-nginx-controller             LoadBalancer   10.109.63.223    192.168.1.71   80:32046/TCP,443:31512/TCP   56s
service/ingress-nginx-controller-admission   ClusterIP      10.110.227.191   <none>         443/TCP                      56s

NAME                                       READY   UP-TO-DATE   AVAILABLE   AGE
deployment.apps/ingress-nginx-controller   1/1     1            1           56s

NAME                                                  DESIRED   CURRENT   READY   AGE
replicaset.apps/ingress-nginx-controller-6996967cbb   1         1         1       56s
[root@k8s-master01 ~]#

15.2创建测试应用

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cat > ingress-demo-app.yaml << EOF
apiVersion: apps/v1
kind: Deployment
metadata:
  name: hello-server
spec:
  replicas: 2
  selector:
    matchLabels:
      app: hello-server
  template:
    metadata:
      labels:
        app: hello-server
    spec:
      containers:
      - name: hello-server
        image: registry.cn-hangzhou.aliyuncs.com/lfy_k8s_images/hello-server
        ports:
        - containerPort: 9000
---
apiVersion: apps/v1
kind: Deployment
metadata:
  labels:
    app: nginx-demo
  name: nginx-demo
spec:
  replicas: 2
  selector:
    matchLabels:
      app: nginx-demo
  template:
    metadata:
      labels:
        app: nginx-demo
    spec:
      containers:
      - image: nginx
        name: nginx
---
apiVersion: v1
kind: Service
metadata:
  labels:
    app: nginx-demo
  name: nginx-demo
spec:
  selector:
    app: nginx-demo
  ports:
  - port: 8000
    protocol: TCP
    targetPort: 80
---
apiVersion: v1
kind: Service
metadata:
  labels:
    app: hello-server
  name: hello-server
spec:
  selector:
    app: hello-server
  ports:
  - port: 8000
    protocol: TCP
    targetPort: 9000
EOF

cat >> ingress-demo-app-ingress.yaml <<EOF
apiVersion: networking.k8s.io/v1
kind: Ingress  
metadata:
  name: ingress-host-bar
spec:
  ingressClassName: nginx
  rules:
  - host: "hello.chenby.cn"
    http:
      paths:
      - pathType: Prefix
        path: "/"
        backend:
          service:
            name: hello-server
            port:
              number: 8000
  - host: "demo.chenby.cn"
    http:
      paths:
      - pathType: Prefix
        path: "/"  
        backend:
          service:
            name: nginx-demo
            port:
              number: 8000
EOF

# 等创建完成后在执行：
kubectl  apply -f ingress-demo-app.yaml 
kubectl  apply -f ingress-demo-app-ingress.yaml 

kubectl  get ingress
NAME               CLASS   HOSTS                            ADDRESS        PORTS   AGE
ingress-host-bar   nginx   hello.chenby.cn,demo.chenby.cn   192.168.1.71   80      22s

15.3测试访问

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# 写入hosts
cat >> /etc/hosts <<EOF
192.168.1.71 hello.chenby.cn
192.168.1.71 demo.chenby.cn
EOF


# 访问 hello 正常
[root@localhost ~]# curl hello.chenby.cn
Hello World![root@localhost ~]# 
[root@localhost ~]# 

# # 访问 demo 正常
[root@localhost ~]# curl demo.chenby.cn 
<!DOCTYPE html>
<html>
<head>
<title>Welcome to nginx!</title>
<style>
html { color-scheme: light dark; }
body { width: 35em; margin: 0 auto;
font-family: Tahoma, Verdana, Arial, sans-serif; }
</style>
</head>
<body>
<h1>Welcome to nginx!</h1>
<p>If you see this page, the nginx web server is successfully installed and
working. Further configuration is required.</p>

<p>For online documentation and support please refer to
<a href="http://nginx.org/">nginx.org</a>.<br/>
Commercial support is available at
<a href="http://nginx.com/">nginx.com</a>.</p>

<p><em>Thank you for using nginx.</em></p>
</body>
</html>
[root@localhost ~]#

15.4测试路径重写

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# 删除刚建的ingress

kubectl  delete -f ingress-demo-app-ingress.yaml 

# 写入新的ingress
cat >> ingress-demo-app-ingress-router.yaml <<EOF
apiVersion: networking.k8s.io/v1
kind: Ingress  
metadata:
  annotations:
    nginx.ingress.kubernetes.io/rewrite-target: /$2
  name: ingress-host-bar
spec:
  ingressClassName: nginx
  rules:
  - host: "hello.chenby.cn"
    http:
      paths:
      - pathType: Prefix
        path: "/"
        backend:
          service:
            name: hello-server
            port:
              number: 8000
  - host: "demo.chenby.cn"
    http:
      paths:
      - pathType: Prefix
        path: "/nginx(/|$)(.*)" 
        pathType: ImplementationSpecific
        backend:
          service:
            name: nginx-demo  
            port:
              number: 8000
EOF

# 执行部署
kubectl  apply -f ingress-demo-app-ingress-router.yaml 


# 访问 hello 返回正常 
[root@localhost ~]# curl hello.chenby.cn
Hello World![root@localhost ~]# 
[root@localhost ~]# 

# 访问 demo 访问异常
[root@localhost ~]# curl demo.chenby.cn 
<html>
<head><title>404 Not Found</title></head>
<body>
<center><h1>404 Not Found</h1></center>
<hr><center>nginx</center>
</body>
</html>
[root@localhost ~]# 

# 访问时加上URI 访问正常
[root@localhost ~]# curl demo.chenby.cn/nginx
<!DOCTYPE html>
<html>
<head>
<title>Welcome to nginx!</title>
<style>
html { color-scheme: light dark; }
body { width: 35em; margin: 0 auto;
font-family: Tahoma, Verdana, Arial, sans-serif; }
</style>
</head>
<body>
<h1>Welcome to nginx!</h1>
<p>If you see this page, the nginx web server is successfully installed and
working. Further configuration is required.</p>

<p>For online documentation and support please refer to
<a href="http://nginx.org/">nginx.org</a>.<br/>
Commercial support is available at
<a href="http://nginx.com/">nginx.com</a>.</p>

<p><em>Thank you for using nginx.</em></p>
</body>
</html>
[root@localhost ~]#

15.5测试流量限制

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# 删除刚建的ingress

kubectl  delete -f ingress-demo-app-router.yaml 

# 写入新的ingress
cat >> ingress-demo-app-ingress-limit.yaml <<EOF
apiVersion: networking.k8s.io/v1
kind: Ingress
metadata:
  name: ingress-limit-rate
  annotations:
    nginx.ingress.kubernetes.io/limit-rps: "1"
spec:
  ingressClassName: nginx
  rules:
  - host: "hello.chenby.cn"
    http:
      paths:
      - pathType: Exact
        path: "/"
        backend:
          service:
            name: hello-server
            port:
              number: 8000
  - host: "demo.chenby.cn"
    http:
      paths:
      - pathType: Prefix
        path: "/nginx(/|$)(.*)" 
        pathType: ImplementationSpecific
        backend:
          service:
            name: nginx-demo  
            port:
              number: 8000
EOF

# 执行部署
kubectl  apply -f ingress-demo-app-ingress-limit.yaml 


# 访问过快 会返回 503
[root@localhost ~]# for i in {1..8}; do curl hello.chenby.cn; done
Hello World!Hello World!Hello World!Hello World!Hello World!Hello World!<html>
<head><title>503 Service Temporarily Unavailable</title></head>
<body>
<center><h1>503 Service Temporarily Unavailable</h1></center>
<hr><center>nginx</center>
</body>
</html>
<html>
<head><title>503 Service Temporarily Unavailable</title></head>
<body>
<center><h1>503 Service Temporarily Unavailable</h1></center>
<hr><center>nginx</center>
</body>
</html>
[root@localhost ~]#

15.6过滤查看ingress端口

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# 上面有安装metallb组件，所有ingress有自动获取到地址，我这里就不修改nodeport了
# 各位如果没有metallb组件 就需要修改 nodeport


# 修改为nodeport
kubectl edit svc -n ingress-nginx   ingress-nginx-controller
type: NodePort

[root@hello ~/yaml]# kubectl  get svc -A | grep ingress
ingress-nginx      ingress-nginx-controller               LoadBalancer   10.110.161.30    192.168.1.71   80:32480/TCP,443:30195/TCP   12m
ingress-nginx      ingress-nginx-controller-admission     ClusterIP      10.105.211.217   <none>         443/TCP                      12m
[root@hello ~/yaml]#

16.IPv6测试

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#部署应用

cat<<EOF | kubectl apply -f -
apiVersion: apps/v1
kind: Deployment
metadata:
  name: chenby
spec:
  replicas: 1
  selector:
    matchLabels:
      app: chenby
  template:
    metadata:
      labels:
        app: chenby
    spec:
      hostNetwork: true
      containers:
      - name: chenby
        image: docker.io/library/nginx
        resources:
          limits:
            memory: "128Mi"
            cpu: "500m"
        ports:
        - containerPort: 80
---
apiVersion: v1
kind: Service
metadata:
  name: chenby
spec:
  ipFamilyPolicy: PreferDualStack
  ipFamilies:
  - IPv6
  - IPv4
  type: NodePort
  selector:
    app: chenby
  ports:
  - port: 80
    targetPort: 80
EOF


#查看端口
[root@k8s-master01 ~]# kubectl  get svc
NAME           TYPE        CLUSTER-IP        EXTERNAL-IP   PORT(S)        AGE
chenby         NodePort    fd00:1111::7ef8   <none>        80:32288/TCP   5s

[root@k8s-master01 ~]# 

# 直接访问POD地址
[root@k8s-master01 ~]# curl -I http://[fd00:1111::7ef8]
HTTP/1.1 200 OK
Server: nginx/1.29.1
Date: Sun, 31 Aug 2025 04:14:38 GMT
Content-Type: text/html
Content-Length: 615
Last-Modified: Wed, 13 Aug 2025 14:33:41 GMT
Connection: keep-alive
ETag: "689ca245-267"
Accept-Ranges: bytes



# 使用IPv4地址访问测试
[root@k8s-master01 ~]# curl -I http://192.168.1.31:32651
HTTP/1.1 200 OK
Server: nginx/1.29.1
Date: Sun, 31 Aug 2025 04:15:05 GMT
Content-Type: text/html
Content-Length: 615
Last-Modified: Wed, 13 Aug 2025 14:33:41 GMT
Connection: keep-alive
ETag: "689ca245-267"
Accept-Ranges: bytes


# 使用主机的内网IPv6地址测试
[root@k8s-master01 ~]# curl -I http://[fc00::31]:32651
HTTP/1.1 200 OK
Server: nginx/1.29.1
Date: Sun, 31 Aug 2025 04:15:23 GMT
Content-Type: text/html
Content-Length: 615
Last-Modified: Wed, 13 Aug 2025 14:33:41 GMT
Connection: keep-alive
ETag: "689ca245-267"
Accept-Ranges: bytes


# 使用主机的公网IPv6地址测试
[root@k8s-master01 ~]# curl -I http://[2409:8a10:6d0:f1::ed1]:32651
HTTP/1.1 200 OK
Server: nginx/1.29.1
Date: Sun, 31 Aug 2025 04:16:16 GMT
Content-Type: text/html
Content-Length: 615
Last-Modified: Wed, 13 Aug 2025 14:33:41 GMT
Connection: keep-alive
ETag: "689ca245-267"
Accept-Ranges: bytes


17.安装NFS动态存储

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# 安装nfs
# CentOS
yum install -y nfs-utils

# Ubuntu
apt install nfs-kernel-server nfs-common

# 创建共享
mkdir /nfs

# 编辑共享
vim /etc/exports
/nfs *(rw,sync,no_root_squash,no_subtree_check)


# centos 
systemctl enable rpcbind.service
systemctl enable nfs-server.service
systemctl restart rpcbind.service
systemctl restart nfs-server.service

# ubuntu
systemctl enable nfs-kernel-server
systemctl restart nfs-kernel-server

# 加载配置
exportfs -a
exportfs -r
exportfs


# 添加仓库
helm repo add nfs-subdir-external-provisioner https://kubernetes-sigs.github.io/nfs-subdir-external-provisioner/
# --set nfs.server 填写你的nfs服务器地址
# --set nfs.path 填写你的nfs服务器路径
helm install -n kube-system nfs-subdir-external-provisioner nfs-subdir-external-provisioner/nfs-subdir-external-provisioner \
    --set storageClass.defaultClass=true \
    --set nfs.server=192.168.1.31 \
    --set nfs.path=/nfs

# 查看是否为默认存储
[root@k8s-master01 ~]# kubectl get storageclasses.storage.k8s.io
NAME                   PROVISIONER                                     RECLAIMPOLICY   VOLUMEBINDINGMODE   ALLOWVOLUMEEXPANSION   AGE
nfs-client (default)   cluster.local/nfs-subdir-external-provisioner   Delete          Immediate           true                   123m
[root@k8s-master01 ~]#

17.1 测试

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# 创建PVC需求
cat >> pvc.yaml <<EOF
kind: PersistentVolumeClaim
apiVersion: v1
metadata:
  name: nginx-pvc
spec:
  accessModes:
    - ReadWriteMany
  resources:
    requests:
      storage: 200Mi
EOF
# 执行部署
kubectl apply -f pvc.yaml


# 查看pvc
[root@k8s-master-node1 ~/yaml]# kubectl get pvc
NAME        STATUS   VOLUME                                     CAPACITY   ACCESS MODES   STORAGECLASS   AGE
nginx-pvc   Bound    pvc-8a4b6065-904a-4bae-bef9-1f3b5612986c   200Mi      RWX            nfs-storage    4s
[root@k8s-master-node1 ~/yaml]#

# 查看pv
[root@k8s-master-node1 ~/yaml]# kubectl  get pv
NAME                                       CAPACITY   ACCESS MODES   RECLAIM POLICY   STATUS   CLAIM               STORAGECLASS   REASON   AGE
pvc-8a4b6065-904a-4bae-bef9-1f3b5612986c   200Mi      RWX            Delete           Bound    default/nginx-pvc   nfs-storage             103s
[root@k8s-master-node1 ~/yaml]#

18.污点

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# 查看当前污点状态
[root@k8s-master01 ~]# kubectl describe node  | grep Taints
Taints:             <none>
Taints:             <none>
Taints:             <none>
Taints:             <none>
Taints:             <none>

# 设置污点 禁止调度 同时进行驱赶现有的POD
kubectl taint nodes k8s-master01 key1=value1:NoExecute
kubectl taint nodes k8s-master02 key1=value1:NoExecute
kubectl taint nodes k8s-master03 key1=value1:NoExecute

# 取消污点
kubectl taint nodes k8s-master01 key1=value1:NoExecute-
kubectl taint nodes k8s-master02 key1=value1:NoExecute-
kubectl taint nodes k8s-master03 key1=value1:NoExecute-

# 设置污点 禁止调度 不进行驱赶现有的POD
kubectl taint nodes k8s-master01 key1=value1:NoSchedule
kubectl taint nodes k8s-master02 key1=value1:NoSchedule
kubectl taint nodes k8s-master03 key1=value1:NoSchedule

# 取消污点
kubectl taint nodes k8s-master01 key1=value1:NoSchedule-
kubectl taint nodes k8s-master02 key1=value1:NoSchedule-
kubectl taint nodes k8s-master03 key1=value1:NoSchedule-

19.安装命令行自动补全功能

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yum install bash-completion -y
source /usr/share/bash-completion/bash_completion
source <(kubectl completion bash)
echo "source <(kubectl completion bash)" >> ~/.bashrc

附录

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详见完整版 https://github.com/cby-chen/Kubernetes

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