docker 与 kubernetes

最近尝试安装 kubernetes 因为墙的问题弄的是焦头烂额，特记录下

一.Docker的安装

参照官方文档配置yum源为阿里源基本安装就没啥问题

二.cri-dockerd 安装

因为国内的网络问题

1.建议采取先单独安装GO 且配置GO的GOPROXY 设置为国内代理。

如下：go env -w GOPROXY=https://goproxy.cn,direct

再参照 https://github.com/Mirantis/cri-dockerd 对源码进行编译和配置。

我根据官方的编译部署后尝试多次就是启动不了

报systemctl enable cri-docker.service 提示 Unit file cri-docker.service does not exist 的错误

后面先根据 k8s 容器运行时 containerd 的安装先把CNI 安装了，配置

vim /etc/systemd/system/cri-docker.service

配置

ExecStart=/usr/bin/cri-dockerd --network-plugin=cni --pod-infra-container-image=registry.aliyuncs.com/google_containers/pause:3.9 --container-runtime-endpoint fd://

之后 reboot cri-dockerd就成功运行了

三 K8S 安装

cat <<EOF > /etc/yum.repos.d/kubernetes.repo
[kubernetes]
name=Kubernetes
baseurl=https://mirrors.aliyun.com/kubernetes/yum/repos/kubernetes-el7-x86_64/
enabled=1
gpgcheck=1
repo_gpgcheck=1
gpgkey=https://mirrors.aliyun.com/kubernetes/yum/doc/yum-key.gpg https://mirrors.aliyun.com/kubernetes/yum/doc/rpm-package-key.gpg
EOF
setenforce 0
yum install -y kubelet kubeadm kubectl
systemctl enable kubelet && systemctl start kubelet

2.生成配置文件

kubeadm config print init-defaults > kubeadm.yml

Vim kubeadm.yml

修改配置文件注意标红为修改处

apiVersion: kubeadm.k8s.io/v1beta3
bootstrapTokens:
- groups:
  - system:bootstrappers:kubeadm:default-node-token
  token: abcdef.0123456789abcdef
  ttl: 24h0m0s
  usages:
  - signing
  - authentication
kind: InitConfiguration
localAPIEndpoint:
  advertiseAddress: 192.168.80.165
  bindPort: 6443
nodeRegistration:
  criSocket: unix:///run/cri-dockerd.sock
  imagePullPolicy: IfNotPresent
  name: master
  taints: null
---
apiServer:
  timeoutForControlPlane: 4m0s
apiVersion: kubeadm.k8s.io/v1beta3
certificatesDir: /etc/kubernetes/pki
clusterName: kubernetes
controllerManager: {}
dns: {}
etcd:
  local:
    dataDir: /var/lib/etcd
imageRepository: registry.cn-hangzhou.aliyuncs.com/google_containers
kind: ClusterConfiguration
kubernetesVersion: 1.26.0
controlPlaneEndpoint: "192.168.80.165:6443"
networking:
  dnsDomain: cluster.local
  serviceSubnet: 10.96.0.0/12
scheduler: {}