954 lines
31 KiB
Markdown
954 lines
31 KiB
Markdown
<h1><center>基于kubeadm部署kubernetes集群</center></h1>
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著作：行癫 <盗版必究>
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------
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## 一：环境准备
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三台服务器，一台master，两台node,master节点必须是2核cpu
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| 节点名称 | IP地址 |
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| :------: | :--------: |
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| master | 10.0.0.220 |
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| node-1 | 10.0.0.221 |
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| node-2 | 10.0.0.222 |
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| node-3 | 10.0.0.223 |
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#### 1.所有服务器关闭防火墙和selinux
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```shell
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[root@localhost ~]# systemctl stop firewalld
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[root@localhost ~]# systemctl disable firewalld
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[root@localhost ~]# setenforce 0
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[root@localhost ~]# sed -i '/^SELINUX=/c SELINUX=disabled/' /etc/selinux/config
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[root@localhost ~]# swapoff -a 临时关闭
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[root@localhost ~]# sed -i 's/.*swap.*/#&/' /etc/fstab 永久关闭
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注意：
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关闭所有服务器的交换分区
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所有节点操作
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```
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#### 2.保证yum仓库可用
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```shell
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[root@localhost ~]# yum clean all
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[root@localhost ~]# yum makecache fast
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注意：
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使用国内yum源
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所有节点操作
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```
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#### 3.修改主机名
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```shell
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[root@localhost ~]# hostnamectl set-hostname master
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[root@localhost ~]# hostnamectl set-hostname node-1
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[root@localhost ~]# hostnamectl set-hostname node-2
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[root@localhost ~]# hostnamectl set-hostname node-3
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注意：
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所有节点操作
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```
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#### 4.添加本地解析
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```shell
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[root@master ~]# cat >> /etc/hosts <<eof
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10.0.0.220 master
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10.0.0.221 node-1
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10.0.0.222 node-2
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10.0.0.223 node-3
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eof
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注意：
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所有节点操作
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```
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#### 5.安装容器运行时
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```shell
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第一步：Installing containerd
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链接地址：https://github.com/containerd/containerd/blob/main/docs/getting-started.md
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[root@master ~]# wget https://github.com/containerd/containerd/releases/download/v1.6.8/containerd-1.6.8-linux-amd64.tar.gz
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[root@master ~]# tar xf containerd-1.6.8-linux-amd64.tar.gz
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[root@master ~]# cp bin/* /usr/local/bin
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创建systemctl管理服务启动文件
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/usr/local/lib/systemd/system/containerd.service
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/etc/systemd/system/multi-user.target.wants/containerd.service
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[root@master ~]# cat containerd.service
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# Copyright The containerd Authors.
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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[Unit]
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Description=containerd container runtime
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Documentation=https://containerd.io
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After=network.target local-fs.target
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[Service]
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#uncomment to enable the experimental sbservice (sandboxed) version of containerd/cri integration
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#Environment="ENABLE_CRI_SANDBOXES=sandboxed"
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ExecStartPre=-/sbin/modprobe overlay
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ExecStart=/usr/local/bin/containerd
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Type=notify
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Delegate=yes
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KillMode=process
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Restart=always
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RestartSec=5
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# Having non-zero Limit*s causes performance problems due to accounting overhead
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# in the kernel. We recommend using cgroups to do container-local accounting.
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LimitNPROC=infinity
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LimitCORE=infinity
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LimitNOFILE=infinity
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# Comment TasksMax if your systemd version does not supports it.
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# Only systemd 226 and above support this version.
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TasksMax=infinity
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OOMScoreAdjust=-999
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[Install]
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WantedBy=multi-user.target
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[root@master ~]# systemctl daemon-reload
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[root@master ~]# systemctl start containerd
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第二步：Installing runc
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链接地址：https://github.com/opencontainers/runc/releases
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[root@master ~]# wget https://github.com/opencontainers/runc/releases/download/v1.1.4/runc.amd64
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[root@master ~]# install -m 755 runc.amd64 /usr/local/sbin/runc
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第三步：Installing CNI plugins
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链接地址：https://github.com/containernetworking/plugins/releases
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[root@master ~]# wget https://github.com/containernetworking/plugins/releases/download/v1.1.1/cni-plugins-linux-amd64-v1.1.1.tgz
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[root@master ~]# mkdir -p /opt/cni/bin
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[root@master ~]# tar Cxzvf /opt/cni/bin cni-plugins-linux-amd64-v1.1.1.tgz
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./
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./macvlan
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./static
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./vlan
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./portmap
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./host-local
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./vrf
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./bridge
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./tuning
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./firewall
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./host-device
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./sbr
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./loopback
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./dhcp
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./ptp
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./ipvlan
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./bandwidth
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注意：
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所有节点操作
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```
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#### 6.安装kubeadm和kubelet
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```shell
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国外仓库：
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[root@master ~]# cat >> /etc/yum.repos.d/kubernetes.repo <<eof
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[kubernetes]
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name=Kubernetes
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baseurl=https://packages.cloud.google.com/yum/repos/kubernetes-el7-\$basearch
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enabled=1
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gpgcheck=1
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gpgkey=https://packages.cloud.google.com/yum/doc/yum-key.gpg https://packages.cloud.google.com/yum/doc/rpm-package-key.gpg
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exclude=kubelet kubeadm kubectl
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eof
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[root@master ~]# yum install -y kubelet kubeadm kubectl --disableexcludes=kubernetes
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国内仓库：
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[root@master ~]# cat >> /etc/yum.repos.d/kubernetes.repo <<eof
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[kubernetes]
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name=Kubernetes
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baseurl=https://mirrors.aliyun.com/kubernetes/yum/repos/kubernetes-el7-x86_64
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enabled=1
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gpgcheck=0
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repo_gpgcheck=0
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gpgkey=https://mirrors.aliyun.com/kubernetes/yum/doc/yum-key.gpg https://mirrors.aliyun.com/kubernetes/yum/doc/rpm-package-key.gpg
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eof
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[root@master ~]# yum -y install kubeadm kubelet kubectl ipvsadm
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注意：
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所有节点操作
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这里安装的是最新版本（也可以指定版本号：kubeadm-1.25.0）
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修改kubelet配置
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[root@master ~]# cat /etc/sysconfig/kubelet
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KUBELET_EXTRA_ARGS="--pod-infra-container-image=registry.aliyuncs.com/google_containers/pause:3.6"
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[root@master ~]# cat /etc/systemd/system/multi-user.target.wants/kubelet.service
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[Unit]
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Description=kubelet: The Kubernetes Node Agent
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Documentation=https://kubernetes.io/docs/
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Wants=network-online.target
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After=network-online.target
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[Service]
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ExecStart=/usr/bin/kubelet \
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--container-runtime=remote \
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--container-runtime-endpoint=unix:///run//containerd/containerd.sock
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Restart=always
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StartLimitInterval=0
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RestartSec=10
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[Install]
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WantedBy=multi-user.target
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```
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#### 7.加载内核模块
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```shell
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[root@master ~]# modprobe br_netfilter
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注意：
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所有节点操作
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```
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#### 8.修改内核参数
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```shell
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[root@master ~]# cat >> /etc/sysctl.conf <<eof
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net.bridge.bridge-nf-call-ip6tables = 1
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net.bridge.bridge-nf-call-iptables = 1
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vm.swappiness=0
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net.ipv4.ip_forward=1
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eof
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[root@master ~]# sysctl -p
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net.bridge.bridge-nf-call-ip6tables = 1
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net.bridge.bridge-nf-call-iptables = 1
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vm.swappiness = 0
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注意：
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所有节点操作
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```
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## 二：部署Kubernetes
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#### 1.镜像下载
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```shell
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[root@master ~]# cat image.sh
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ctr -n k8s.io i pull -k registry.cn-hangzhou.aliyuncs.com/google_containers/etcd:3.5.4-0
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ctr -n k8s.io i pull -k registry.cn-hangzhou.aliyuncs.com/google_containers/coredns:v1.9.3
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ctr -n k8s.io i pull -k registry.cn-hangzhou.aliyuncs.com/google_containers/kube-proxy:v1.25.0
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ctr -n k8s.io i pull -k registry.cn-hangzhou.aliyuncs.com/google_containers/kube-scheduler:v1.25.0
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ctr -n k8s.io i pull -k registry.cn-hangzhou.aliyuncs.com/google_containers/kube-controller-manager:v1.25.0
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ctr -n k8s.io i pull -k registry.cn-hangzhou.aliyuncs.com/google_containers/kube-apiserver:v1.25.0
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ctr -n k8s.io i pull -k registry.cn-hangzhou.aliyuncs.com/google_containers/pause:3.6
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ctr -n k8s.io i pull -k registry.cn-hangzhou.aliyuncs.com/google_containers/pause:3.8
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#flannel镜像
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ctr -n k8s.io i pull docker.io/rancher/mirrored-flannelcni-flannel-cni-plugin:v1.1.0
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ctr -n k8s.io i pull docker.io/rancher/mirrored-flannelcni-flannel:v0.19.2
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ctr -n k8s.io i tag registry.cn-hangzhou.aliyuncs.com/google_containers/etcd:3.5.4-0 registry.k8s.io/etcd:3.5.4-0
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ctr -n k8s.io i tag registry.cn-hangzhou.aliyuncs.com/google_containers/coredns:v1.9.3 registry.k8s.io/coredns/coredns:v1.9.3
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ctr -n k8s.io i tag registry.cn-hangzhou.aliyuncs.com/google_containers/pause:3.8 k8s.gcr.io/pause:3.6
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ctr -n k8s.io i tag registry.cn-hangzhou.aliyuncs.com/google_containers/kube-proxy:v1.25.0 registry.k8s.io/kube-proxy:v1.25.0
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ctr -n k8s.io i tag registry.cn-hangzhou.aliyuncs.com/google_containers/kube-scheduler:v1.25.0 registry.k8s.io/kube-scheduler:v1.25.0
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ctr -n k8s.io i tag registry.cn-hangzhou.aliyuncs.com/google_containers/kube-controller-manager:v1.25.0 registry.k8s.io/kube-controller-manager:v1.25.0
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ctr -n k8s.io i tag registry.cn-hangzhou.aliyuncs.com/google_containers/kube-apiserver:v1.25.0 registry.k8s.io/kube-apiserver:v1.25.0
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ctr -n k8s.io i tag registry.cn-hangzhou.aliyuncs.com/google_containers/pause:3.8 registry.k8s.io/pause:3.8
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[root@master ~]# bash image.sh
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注意：
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所有节点操作
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注意：
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[root@master ~]# kubeadm config images list //获取所需要的镜像
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registry.k8s.io/kube-apiserver:v1.25.0
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registry.k8s.io/kube-controller-manager:v1.25.0
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registry.k8s.io/kube-scheduler:v1.25.0
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registry.k8s.io/kube-proxy:v1.25.0
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registry.k8s.io/pause:3.8
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registry.k8s.io/etcd:3.5.4-0
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registry.k8s.io/coredns/coredns:v1.9.3
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```
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#### 3.master节点初始化
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```shell
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[root@master ~]# kubeadm init --kubernetes-version=1.23.1 --pod-network-cidr=10.244.0.0/16 --apiserver-advertise-address=10.0.0.220
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Your Kubernetes control-plane has initialized successfully!
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To start using your cluster, you need to run the following as a regular user:
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mkdir -p $HOME/.kube
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sudo cp -i /etc/kubernetes/admin.conf $HOME/.kube/config
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sudo chown $(id -u):$(id -g) $HOME/.kube/config
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Alternatively, if you are the root user, you can run:
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export KUBECONFIG=/etc/kubernetes/admin.conf
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You should now deploy a pod network to the cluster.
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Run "kubectl apply -f [podnetwork].yaml" with one of the options listed at:
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https://kubernetes.io/docs/concepts/cluster-administration/addons/
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Then you can join any number of worker nodes by running the following on each as root:
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kubeadm join 10.0.2.150:6443 --token tlohed.bwgh4tt5erbc2zhg \
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--discovery-token-ca-cert-hash sha256:9b28238c55bf5b2e5e0d68c6303e50bf6f12e7e07126897c846a4f5328157e16
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```
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#### 4.安装pod插件
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```shell
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[root@master ~]# vi kube-flannel.yaml
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---
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kind: Namespace
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apiVersion: v1
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metadata:
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name: kube-flannel
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labels:
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pod-security.kubernetes.io/enforce: privileged
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---
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kind: ClusterRole
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apiVersion: rbac.authorization.k8s.io/v1
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metadata:
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name: flannel
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rules:
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- apiGroups:
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- ""
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resources:
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- pods
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verbs:
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- get
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- apiGroups:
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- ""
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resources:
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- nodes
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verbs:
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- list
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- watch
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- apiGroups:
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- ""
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resources:
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- nodes/status
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verbs:
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- patch
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---
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kind: ClusterRoleBinding
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apiVersion: rbac.authorization.k8s.io/v1
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metadata:
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name: flannel
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roleRef:
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apiGroup: rbac.authorization.k8s.io
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kind: ClusterRole
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name: flannel
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subjects:
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- kind: ServiceAccount
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name: flannel
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namespace: kube-flannel
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---
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apiVersion: v1
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kind: ServiceAccount
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metadata:
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name: flannel
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namespace: kube-flannel
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---
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kind: ConfigMap
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apiVersion: v1
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metadata:
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name: kube-flannel-cfg
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namespace: kube-flannel
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labels:
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tier: node
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app: flannel
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data:
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cni-conf.json: |
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{
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"name": "cbr0",
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"cniVersion": "0.3.1",
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"plugins": [
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{
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"type": "flannel",
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"delegate": {
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"hairpinMode": true,
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"isDefaultGateway": true
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}
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},
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{
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"type": "portmap",
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"capabilities": {
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"portMappings": true
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}
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}
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]
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}
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net-conf.json: |
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{
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"Network": "10.244.0.0/16",
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"Backend": {
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"Type": "vxlan"
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}
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}
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---
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apiVersion: apps/v1
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kind: DaemonSet
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metadata:
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name: kube-flannel-ds
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namespace: kube-flannel
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labels:
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tier: node
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app: flannel
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spec:
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selector:
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matchLabels:
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app: flannel
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template:
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metadata:
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labels:
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tier: node
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app: flannel
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spec:
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affinity:
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nodeAffinity:
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requiredDuringSchedulingIgnoredDuringExecution:
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nodeSelectorTerms:
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- matchExpressions:
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- key: kubernetes.io/os
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operator: In
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values:
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- linux
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hostNetwork: true
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priorityClassName: system-node-critical
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tolerations:
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- operator: Exists
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effect: NoSchedule
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serviceAccountName: flannel
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initContainers:
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- name: install-cni-plugin
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#image: flannelcni/flannel-cni-plugin:v1.1.0 for ppc64le and mips64le (dockerhub limitations may apply)
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image: docker.io/rancher/mirrored-flannelcni-flannel-cni-plugin:v1.1.0
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command:
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- cp
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args:
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- -f
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- /flannel
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- /opt/cni/bin/flannel
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volumeMounts:
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- name: cni-plugin
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mountPath: /opt/cni/bin
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- name: install-cni
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#image: flannelcni/flannel:v0.19.2 for ppc64le and mips64le (dockerhub limitations may apply)
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image: docker.io/rancher/mirrored-flannelcni-flannel:v0.19.2
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command:
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- cp
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args:
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- -f
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- /etc/kube-flannel/cni-conf.json
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- /etc/cni/net.d/10-flannel.conflist
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volumeMounts:
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- name: cni
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mountPath: /etc/cni/net.d
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- name: flannel-cfg
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mountPath: /etc/kube-flannel/
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containers:
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- name: kube-flannel
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#image: flannelcni/flannel:v0.19.2 for ppc64le and mips64le (dockerhub limitations may apply)
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image: docker.io/rancher/mirrored-flannelcni-flannel:v0.19.2
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command:
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- /opt/bin/flanneld
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args:
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- --ip-masq
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- --kube-subnet-mgr
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resources:
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requests:
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cpu: "100m"
|
||
memory: "50Mi"
|
||
limits:
|
||
cpu: "100m"
|
||
memory: "50Mi"
|
||
securityContext:
|
||
privileged: false
|
||
capabilities:
|
||
add: ["NET_ADMIN", "NET_RAW"]
|
||
env:
|
||
- name: POD_NAME
|
||
valueFrom:
|
||
fieldRef:
|
||
fieldPath: metadata.name
|
||
- name: POD_NAMESPACE
|
||
valueFrom:
|
||
fieldRef:
|
||
fieldPath: metadata.namespace
|
||
- name: EVENT_QUEUE_DEPTH
|
||
value: "5000"
|
||
volumeMounts:
|
||
- name: run
|
||
mountPath: /run/flannel
|
||
- name: flannel-cfg
|
||
mountPath: /etc/kube-flannel/
|
||
- name: xtables-lock
|
||
mountPath: /run/xtables.lock
|
||
volumes:
|
||
- name: run
|
||
hostPath:
|
||
path: /run/flannel
|
||
- name: cni-plugin
|
||
hostPath:
|
||
path: /opt/cni/bin
|
||
- name: cni
|
||
hostPath:
|
||
path: /etc/cni/net.d
|
||
- name: flannel-cfg
|
||
configMap:
|
||
name: kube-flannel-cfg
|
||
- name: xtables-lock
|
||
hostPath:
|
||
path: /run/xtables.lock
|
||
type: FileOrCreate
|
||
[root@master ~]# kubectl create -f kube-flannel.yaml
|
||
```
|
||
|
||
#### 5.将node加入工作节点
|
||
|
||
```shell
|
||
[root@node-1 ~]# kubeadm join 10.0.0.220:6443 --token mzrm3c.u9mpt80rddmjvd3g --discovery-token-ca-cert-hash sha256:fec53dfeacc5187d3f0e3998d65bd3e303fa64acd5156192240728567659bf4a
|
||
注意：
|
||
这里使用的是master初始化产生的token
|
||
这里的token时间长了会改变，需要使用命令获取，见下期内容
|
||
没有记录集群 join 命令的可以通过以下方式重新获取:
|
||
kubeadm token create --print-join-command --ttl=0
|
||
```
|
||
|
||
#### 6.master节点查看集群状态
|
||
|
||
```shell
|
||
[root@master ~]# kubectl get node
|
||
NAME STATUS ROLES AGE VERSION
|
||
master Ready control-plane 7m v1.25.0
|
||
node-1 Ready <none> 2m7s v1.25.0
|
||
node-2 Ready <none> 50s v1.25.0
|
||
node-3 Ready <none> 110s v1.25.0
|
||
```
|
||
|
||
## 三：部署Dashboard
|
||
|
||
#### 1.kube-proxy 开启 ipvs
|
||
|
||
```shell
|
||
[root@master ~]# kubectl get configmap kube-proxy -n kube-system -o yaml > kube-proxy-configmap.yaml
|
||
[root@master ~]# sed -i 's/mode: ""/mode: "ipvs"/' kube-proxy-configmap.yaml
|
||
[root@master ~]# kubectl apply -f kube-proxy-configmap.yaml
|
||
[root@master ~]# rm -f kube-proxy-configmap.yaml
|
||
[root@master ~]# kubectl get pod -n kube-system | grep kube-proxy | awk '{system("kubectl delete pod "$1" -n kube-system")}'
|
||
```
|
||
|
||
#### 2.Dashboard安装脚本
|
||
|
||
```shell
|
||
[root@master ~]# cat dashboard.yaml
|
||
# Copyright 2017 The Kubernetes Authors.
|
||
#
|
||
# Licensed under the Apache License, Version 2.0 (the "License");
|
||
# you may not use this file except in compliance with the License.
|
||
# You may obtain a copy of the License at
|
||
#
|
||
# http://www.apache.org/licenses/LICENSE-2.0
|
||
#
|
||
# Unless required by applicable law or agreed to in writing, software
|
||
# distributed under the License is distributed on an "AS IS" BASIS,
|
||
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
||
# See the License for the specific language governing permissions and
|
||
# limitations under the License.
|
||
|
||
apiVersion: v1
|
||
kind: Namespace
|
||
metadata:
|
||
name: kubernetes-dashboard
|
||
|
||
---
|
||
|
||
apiVersion: v1
|
||
kind: ServiceAccount
|
||
metadata:
|
||
labels:
|
||
k8s-app: kubernetes-dashboard
|
||
name: kubernetes-dashboard
|
||
namespace: kubernetes-dashboard
|
||
|
||
---
|
||
|
||
kind: Service
|
||
apiVersion: v1
|
||
metadata:
|
||
labels:
|
||
k8s-app: kubernetes-dashboard
|
||
name: kubernetes-dashboard
|
||
namespace: kubernetes-dashboard
|
||
spec:
|
||
type: NodePort
|
||
ports:
|
||
- port: 443
|
||
targetPort: 8443
|
||
selector:
|
||
k8s-app: kubernetes-dashboard
|
||
|
||
---
|
||
|
||
apiVersion: v1
|
||
kind: Secret
|
||
metadata:
|
||
labels:
|
||
k8s-app: kubernetes-dashboard
|
||
name: kubernetes-dashboard-certs
|
||
namespace: kubernetes-dashboard
|
||
type: Opaque
|
||
|
||
---
|
||
|
||
apiVersion: v1
|
||
kind: Secret
|
||
metadata:
|
||
labels:
|
||
k8s-app: kubernetes-dashboard
|
||
name: kubernetes-dashboard-csrf
|
||
namespace: kubernetes-dashboard
|
||
type: Opaque
|
||
data:
|
||
csrf: ""
|
||
|
||
---
|
||
|
||
apiVersion: v1
|
||
kind: Secret
|
||
metadata:
|
||
labels:
|
||
k8s-app: kubernetes-dashboard
|
||
name: kubernetes-dashboard-key-holder
|
||
namespace: kubernetes-dashboard
|
||
type: Opaque
|
||
|
||
---
|
||
|
||
kind: ConfigMap
|
||
apiVersion: v1
|
||
metadata:
|
||
labels:
|
||
k8s-app: kubernetes-dashboard
|
||
name: kubernetes-dashboard-settings
|
||
namespace: kubernetes-dashboard
|
||
|
||
---
|
||
|
||
kind: Role
|
||
apiVersion: rbac.authorization.k8s.io/v1
|
||
metadata:
|
||
labels:
|
||
k8s-app: kubernetes-dashboard
|
||
name: kubernetes-dashboard
|
||
namespace: kubernetes-dashboard
|
||
rules:
|
||
# Allow Dashboard to get, update and delete Dashboard exclusive secrets.
|
||
- apiGroups: [""]
|
||
resources: ["secrets"]
|
||
resourceNames: ["kubernetes-dashboard-key-holder", "kubernetes-dashboard-certs", "kubernetes-dashboard-csrf"]
|
||
verbs: ["get", "update", "delete"]
|
||
# Allow Dashboard to get and update 'kubernetes-dashboard-settings' config map.
|
||
- apiGroups: [""]
|
||
resources: ["configmaps"]
|
||
resourceNames: ["kubernetes-dashboard-settings"]
|
||
verbs: ["get", "update"]
|
||
# Allow Dashboard to get metrics.
|
||
- apiGroups: [""]
|
||
resources: ["services"]
|
||
resourceNames: ["heapster", "dashboard-metrics-scraper"]
|
||
verbs: ["proxy"]
|
||
- apiGroups: [""]
|
||
resources: ["services/proxy"]
|
||
resourceNames: ["heapster", "http:heapster:", "https:heapster:", "dashboard-metrics-scraper", "http:dashboard-metrics-scraper"]
|
||
verbs: ["get"]
|
||
|
||
---
|
||
|
||
kind: ClusterRole
|
||
apiVersion: rbac.authorization.k8s.io/v1
|
||
metadata:
|
||
labels:
|
||
k8s-app: kubernetes-dashboard
|
||
name: kubernetes-dashboard
|
||
rules:
|
||
# Allow Metrics Scraper to get metrics from the Metrics server
|
||
- apiGroups: ["metrics.k8s.io"]
|
||
resources: ["pods", "nodes"]
|
||
verbs: ["get", "list", "watch"]
|
||
|
||
---
|
||
|
||
apiVersion: rbac.authorization.k8s.io/v1
|
||
kind: RoleBinding
|
||
metadata:
|
||
labels:
|
||
k8s-app: kubernetes-dashboard
|
||
name: kubernetes-dashboard
|
||
namespace: kubernetes-dashboard
|
||
roleRef:
|
||
apiGroup: rbac.authorization.k8s.io
|
||
kind: Role
|
||
name: kubernetes-dashboard
|
||
subjects:
|
||
- kind: ServiceAccount
|
||
name: kubernetes-dashboard
|
||
namespace: kubernetes-dashboard
|
||
|
||
---
|
||
|
||
apiVersion: rbac.authorization.k8s.io/v1
|
||
kind: ClusterRoleBinding
|
||
metadata:
|
||
name: kubernetes-dashboard
|
||
roleRef:
|
||
apiGroup: rbac.authorization.k8s.io
|
||
kind: ClusterRole
|
||
name: kubernetes-dashboard
|
||
subjects:
|
||
- kind: ServiceAccount
|
||
name: kubernetes-dashboard
|
||
namespace: kubernetes-dashboard
|
||
|
||
---
|
||
|
||
kind: Deployment
|
||
apiVersion: apps/v1
|
||
metadata:
|
||
labels:
|
||
k8s-app: kubernetes-dashboard
|
||
name: kubernetes-dashboard
|
||
namespace: kubernetes-dashboard
|
||
spec:
|
||
replicas: 1
|
||
revisionHistoryLimit: 10
|
||
selector:
|
||
matchLabels:
|
||
k8s-app: kubernetes-dashboard
|
||
template:
|
||
metadata:
|
||
labels:
|
||
k8s-app: kubernetes-dashboard
|
||
spec:
|
||
securityContext:
|
||
seccompProfile:
|
||
type: RuntimeDefault
|
||
containers:
|
||
- name: kubernetes-dashboard
|
||
image: kubernetesui/dashboard:v2.6.1
|
||
imagePullPolicy: Always
|
||
ports:
|
||
- containerPort: 8443
|
||
protocol: TCP
|
||
args:
|
||
- --auto-generate-certificates
|
||
- --namespace=kubernetes-dashboard
|
||
# Uncomment the following line to manually specify Kubernetes API server Host
|
||
# If not specified, Dashboard will attempt to auto discover the API server and connect
|
||
# to it. Uncomment only if the default does not work.
|
||
# - --apiserver-host=http://my-address:port
|
||
volumeMounts:
|
||
- name: kubernetes-dashboard-certs
|
||
mountPath: /certs
|
||
# Create on-disk volume to store exec logs
|
||
- mountPath: /tmp
|
||
name: tmp-volume
|
||
livenessProbe:
|
||
httpGet:
|
||
scheme: HTTPS
|
||
path: /
|
||
port: 8443
|
||
initialDelaySeconds: 30
|
||
timeoutSeconds: 30
|
||
securityContext:
|
||
allowPrivilegeEscalation: false
|
||
readOnlyRootFilesystem: true
|
||
runAsUser: 1001
|
||
runAsGroup: 2001
|
||
volumes:
|
||
- name: kubernetes-dashboard-certs
|
||
secret:
|
||
secretName: kubernetes-dashboard-certs
|
||
- name: tmp-volume
|
||
emptyDir: {}
|
||
serviceAccountName: kubernetes-dashboard
|
||
nodeSelector:
|
||
"kubernetes.io/os": linux
|
||
# Comment the following tolerations if Dashboard must not be deployed on master
|
||
tolerations:
|
||
- key: node-role.kubernetes.io/master
|
||
effect: NoSchedule
|
||
|
||
---
|
||
|
||
kind: Service
|
||
apiVersion: v1
|
||
metadata:
|
||
labels:
|
||
k8s-app: dashboard-metrics-scraper
|
||
name: dashboard-metrics-scraper
|
||
namespace: kubernetes-dashboard
|
||
spec:
|
||
ports:
|
||
- port: 8000
|
||
targetPort: 8000
|
||
selector:
|
||
k8s-app: dashboard-metrics-scraper
|
||
|
||
---
|
||
|
||
kind: Deployment
|
||
apiVersion: apps/v1
|
||
metadata:
|
||
labels:
|
||
k8s-app: dashboard-metrics-scraper
|
||
name: dashboard-metrics-scraper
|
||
namespace: kubernetes-dashboard
|
||
spec:
|
||
replicas: 1
|
||
revisionHistoryLimit: 10
|
||
selector:
|
||
matchLabels:
|
||
k8s-app: dashboard-metrics-scraper
|
||
template:
|
||
metadata:
|
||
labels:
|
||
k8s-app: dashboard-metrics-scraper
|
||
spec:
|
||
securityContext:
|
||
seccompProfile:
|
||
type: RuntimeDefault
|
||
containers:
|
||
- name: dashboard-metrics-scraper
|
||
image: kubernetesui/metrics-scraper:v1.0.8
|
||
ports:
|
||
- containerPort: 8000
|
||
protocol: TCP
|
||
livenessProbe:
|
||
httpGet:
|
||
scheme: HTTP
|
||
path: /
|
||
port: 8000
|
||
initialDelaySeconds: 30
|
||
timeoutSeconds: 30
|
||
volumeMounts:
|
||
- mountPath: /tmp
|
||
name: tmp-volume
|
||
securityContext:
|
||
allowPrivilegeEscalation: false
|
||
readOnlyRootFilesystem: true
|
||
runAsUser: 1001
|
||
runAsGroup: 2001
|
||
serviceAccountName: kubernetes-dashboard
|
||
nodeSelector:
|
||
"kubernetes.io/os": linux
|
||
# Comment the following tolerations if Dashboard must not be deployed on master
|
||
tolerations:
|
||
- key: node-role.kubernetes.io/master
|
||
effect: NoSchedule
|
||
volumes:
|
||
- name: tmp-volume
|
||
emptyDir: {}
|
||
```
|
||
|
||
#### 3.创建证书
|
||
|
||
```shell
|
||
[root@k8s-master ~]# mkdir dashboard-certs
|
||
[root@k8s-master ~]# cd dashboard-certs/
|
||
#创建命名空间
|
||
[root@k8s-master ~]# kubectl create namespace kubernetes-dashboard
|
||
# 创建私钥key文件
|
||
[root@k8s-master ~]# openssl genrsa -out dashboard.key 2048
|
||
#证书请求
|
||
[root@k8s-master ~]# openssl req -days 36000 -new -out dashboard.csr -key dashboard.key -subj '/CN=dashboard-cert'
|
||
#自签证书
|
||
[root@k8s-master ~]# openssl x509 -req -in dashboard.csr -signkey dashboard.key -out dashboard.crt
|
||
#创建kubernetes-dashboard-certs对象
|
||
[root@k8s-master ~]# kubectl create secret generic kubernetes-dashboard-certs --from-file=dashboard.key --from-file=dashboard.crt -n kubernetes-dashboard
|
||
```
|
||
|
||
#### 4.创建管理员
|
||
|
||
```shell
|
||
创建账户
|
||
[root@k8s-master ~]# vim dashboard-admin.yaml
|
||
apiVersion: v1
|
||
kind: ServiceAccount
|
||
metadata:
|
||
labels:
|
||
k8s-app: kubernetes-dashboard
|
||
name: dashboard-admin
|
||
namespace: kubernetes-dashboard
|
||
#保存退出后执行
|
||
[root@k8s-master ~]# kubectl create -f dashboard-admin.yaml
|
||
为用户分配权限
|
||
[root@k8s-master ~]# vim dashboard-admin-bind-cluster-role.yaml
|
||
apiVersion: rbac.authorization.k8s.io/v1
|
||
kind: ClusterRoleBinding
|
||
metadata:
|
||
name: dashboard-admin-bind-cluster-role
|
||
labels:
|
||
k8s-app: kubernetes-dashboard
|
||
roleRef:
|
||
apiGroup: rbac.authorization.k8s.io
|
||
kind: ClusterRole
|
||
name: cluster-admin
|
||
subjects:
|
||
- kind: ServiceAccount
|
||
name: dashboard-admin
|
||
namespace: kubernetes-dashboard
|
||
#保存退出后执行
|
||
[root@k8s-master ~]# kubectl create -f dashboard-admin-bind-cluster-role.yaml
|
||
```
|
||
|
||
#### 5.安装 Dashboard
|
||
|
||
```shell
|
||
[root@master dashboard-certs]# kubectl create -f dashboard.yaml
|
||
```
|
||
|
||
#### 6.获取token
|
||
|
||
```shell
|
||
[root@master dashboard-certs]# kubectl -n kubernetes-dashboard create token dashboard-admin
|
||
eyJhbGciOiJSUzI1NiIsImtpZCI6InlBck13aTFMR2daR3htTmxSdG5XbGJjOVFLWmdMZlgzRU10TmJWRFNEMk0ifQ.eyJhdWQiOlsiaHR0cHM6Ly9rdWJlcm5ldGVzLmRlZmF1bHQuc3ZjLmNsdXN0ZXIubG9jYWwiXSwiZXhwIjoxNjYyMjE0MTA3LCJpYXQiOjE2NjIyMTA1MDcsImlzcyI6Imh0dHBzOi8va3ViZXJuZXRlcy5kZWZhdWx0LnN2Yy5jbHVzdGVyLmxvY2FsIiwia3ViZXJuZXRlcy5pbyI6eyJuYW1lc3BhY2UiOiJrdWJlcm5ldGVzLWRhc2hib2FyZCIsInNlcnZpY2VhY2NvdW50Ijp7Im5hbWUiOiJkYXNoYm9hcmQtYWRtaW4iLCJ1aWQiOiIwOTRhYWI2NC05NTkyLTRjYTctOWI3MS0yNDEwMmI5ODA1YjcifX0sIm5iZiI6MTY2MjIxMDUwNywic3ViIjoic3lzdGVtOnNlcnZpY2VhY2NvdW50Omt1YmVybmV0ZXMtZGFzaGJvYXJkOmRhc2hib2FyZC1hZG1pbiJ9.MQfc83l08PsAqmBHRzwgE_TsZGct0Sul1lM7Ks0ssf29DtXt22u9hHisvaLmQ64sNsvb_D7r47kDDTxZPbIJP_A2mBuHFqy_dnryUmqlTj7KFJm4PdObwiMTlnBch-v7HqxJKLuA6XXLxtpNrbLWqqG47Bc2kvvcF4BzSkiDhe-s5L0PS-WY753QjV0C9v63G8KJDxkQEGVC4PjqfXSclLi_jvIe4n3UqhUNHPl85JWgBhJHTTAei3Ztp7IMweztR_P30p6BiXEF0Kmcv8Nb7Xsk2dx5avYyiTRZTpq4pBkvAMKlCbXyKufh78mil_oNdaA8Q_AeFWFwgDx9UrGoFA
|
||
```
|
||
|
||
#### 7.创建kubeconfig
|
||
|
||
```shell
|
||
获取certificate-authority-data：
|
||
[root@master ~]# CURRENT_CONTEXT=$(kubectl config current-context)
|
||
[root@master ~]# CURRENT_CLUSTER=$(kubectl config view --raw -o=go-template='{{range .contexts}}{{if eq .name "'''${CURRENT_CONTEXT}'''"}}{{ index .context "cluster" }}{{end}}{{end}}')
|
||
[root@master ~]# kubectl config view --raw -o=go-template='{{range .clusters}}{{if eq .name "'''${CURRENT_CLUSTER}'''"}}"{{with index .cluster "certificate-authority-data" }}{{.}}{{end}}"{{ end }}{{ end }}'
|
||
"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"
|
||
|
||
[root@master ~]# cat config
|
||
apiVersion: v1
|
||
clusters:
|
||
- cluster:
|
||
certificate-authority-data: LS0tLS1CRUdJTiBDRVJUSUZJQ0FURS0tLS0tCk1JSUM1ekNDQWMrZ0F3SUJBZ0lCQURBTkJna3Foa2lHOXcwQkFRc0ZBREFWTVJNd0VRWURWUVFERXdwcmRXSmwKY201bGRHVnpNQjRYRFRJeE1EVXhNakV3TXpReU5Gb1hEVE14TURVeE1ERXdNelF5TkZvd0ZURVRNQkVHQTFVRQpBeE1LYTNWaVpYSnVaWFJsY3pDQ0FTSXdEUVlKS29aSWh2Y05BUUVCQlFBRGdnRVBBRENDQVFvQ2dnRUJBTFd5CmFZLy85Nlc5R2hxWWVBVER5cXhQV2tmVE1mSUxNMFkydy9RSm9SRDJWZmw1cjFNR25mRWNteG81bXc4Z1NXMmEKdVNmeml6dU41eDRMblBBYlVvbHdubkxMeWx3cENmTkRKMFRUVFFyOThuTmphWWQ0d2RmK09uZmtZQ1VaVG1NTwpYWDZBMEZJblFHTEpWQUdOb0xUUnVIR3F6dU0yNUd1Rkp5aXBoNlhRN0tHcmJFVFo0RXQyVWg3azV2UGxPVDQ3CkNEQjlDVkMra1c5MkdIRmNrTkViUU9kTUpPTkZXalh1K1lsSjlZdzNybzhJYU05QVR5SDFwNmNzaXNoejhybVQKUGZEUkl4cXpsNTVzenJNUHV5Y0JqZkVEZXFhcjQ2OXJyMFFGcWJ5NTdaaEtBcGMybTA0eTZ6ZllUQlB4cDhndwpXZ01ONktkcjU4bEFpOERwN3kwQ0F3RUFBYU5DTUVBd0RnWURWUjBQQVFIL0JBUURBZ0trTUE4R0ExVWRFd0VCCi93UUZNQU1CQWY4d0hRWURWUjBPQkJZRUZERTBCTVRreE5BYlpmMGZ6S2JwRm5ZUU94aXpNQTBHQ1NxR1NJYjMKRFFFQkN3VUFBNElCQVFCdE1yU281K2JlcEF2UGpwOUJ4TDlncnFtTnpOVEczRWFHZnZKUndoUE5qVXZ1bDZFZQpNenlIM3o3SERzYW5kSHJMU2xYMGZXZ2Y3TFRBSVRLV3duTDI3NjVzaTJ4L0prb2pCV0VySytGTEs1dGZXbmdmCnZ4cE13eE83RVNYd0FwVDdKWk9iVVA0eStPc3k2VzhQQXRjeHFGUHdyaVNhM29KYnZwZEFvcHloZXdoNUxNcUwKWkpobU4wK1RhTnlOaVJXaEkwcnZOSGYrNEdtcjhMd2lzMXZPdGZ4b2FtcGhPWE8wS0NheEJ0MWoxcDQxK2pNTwo0UUhlRWtFTkJndERzMUtuMTRhbFR6NWI1cFg0amwrU2tOOFk0ZlppUk9SRXJ4cWVmVkJEZ1Z0aWtQbEp5VFkyCmRQMkJOSE82R1FjalVvZmZBTmwwK1ZkblJTWGEvNVRsZU1PUwotLS0tLUVORCBDRVJUSUZJQ0FURS0tLS0tCg==
|
||
server: https://10.0.2.150:6443
|
||
name: kubernetes
|
||
contexts:
|
||
- context:
|
||
cluster: kubernetes
|
||
user: dashboard-admin
|
||
name: dashboard-admin@kubernetes
|
||
current-context: dashboard-admin@kubernetes
|
||
kind: Config
|
||
preferences: {}
|
||
users:
|
||
- name: dashboard-admin
|
||
user:
|
||
token: eyJhbGciOiJSUzI1NiIsImtpZCI6InlBck13aTFMR2daR3htTmxSdG5XbGJjOVFLWmdMZlgzRU10TmJWRFNEMk0ifQ.eyJhdWQiOlsiaHR0cHM6Ly9rdWJlcm5ldGVzLmRlZmF1bHQuc3ZjLmNsdXN0ZXIubG9jYWwiXSwiZXhwIjoxNjYyMjE0MjcwLCJpYXQiOjE2NjIyMTA2NzAsImlzcyI6Imh0dHBzOi8va3ViZXJuZXRlcy5kZWZhdWx0LnN2Yy5jbHVzdGVyLmxvY2FsIiwia3ViZXJuZXRlcy5pbyI6eyJuYW1lc3BhY2UiOiJrdWJlcm5ldGVzLWRhc2hib2FyZCIsInNlcnZpY2VhY2NvdW50Ijp7Im5hbWUiOiJkYXNoYm9hcmQtYWRtaW4iLCJ1aWQiOiIwOTRhYWI2NC05NTkyLTRjYTctOWI3MS0yNDEwMmI5ODA1YjcifX0sIm5iZiI6MTY2MjIxMDY3MCwic3ViIjoic3lzdGVtOnNlcnZpY2VhY2NvdW50Omt1YmVybmV0ZXMtZGFzaGJvYXJkOmRhc2hib2FyZC1hZG1pbiJ9.bHK9jgpCAQIAxwurh05zzndo22hWEzoDnfFRS3VDWAfoD0YOsTF6RbHFSshn0Vm-Xv1sEIgmVkjgftP2Pq_saMs-WdgHfTLz2CjxWpkYV4WQcMs4WJq9Lx5SQeNxw9mEh8c085nnx368GWkENHSsldKP-O6YliWQAP8qpOiUWrJqhteVQi0GD7EYmOPlnKFZF2YKaROYFvn9P8JiCL8rRTZ5GUYIty9LRLkh3daFXj67krk4v3pNLqdHcKKwkv8vFN4hl6RbgA3nY
|
||
```
|
||
|