1. 打开 /etc/fstab 注释掉 swap行

2. 打开 /etc/sysconfig/selinux，将SELINUX=enforcing修改为SELINUX=disabled

3. systemctl disable firewalld && systemctl stop firewalld

4.echo 1 > /proc/sys/net/bridge/bridge-nf-call-iptables

5. 安装docker

a, yum install -y yum-utils device-mapper-persistent-data lvm2

b, yum-config-manager --add-repo http://mirrors.aliyun.com/docker-ce/linux/centos/docker-ce.repo

yum list docker-ce --showduplicates | sort -r

yum install docker-ce-<VERSION_STRING> docker-ce-cli-<VERSION_STRING> containerd.io

version_string 我选择20.10.8

6. systemctl enable docker & systemctl start docker;

7. echo 1 > /proc/sys/net/bridge/bridge-nf-call-iptables

8. 在/etc/yum.repos.d/kubernetes.repo增加以下内容：[kubernetes]
name=Kubernetes Repository
baseurl=https://packages.cloud.google.com/yum/repos/kubernetes-el7-\$basearch
enabled=1
gpgcheck=1
repo_gpgcheck=1
gpgkey=https://packages.cloud.google.com/yum/doc/yum-key.gpg https://packages.cloud.google.com/yum/doc/rpm-package-key.gpg
exclude=kubelet kubeadm kubectl

如果无法访问官方的yum源，可以使用国内的yum源，比如：http://mirrors.aliyun.com/kubernetes/yum/repos/kubernetes-el7-x86_64/

yum makecache fast

yum install -y kubelet kubeadm kubectl --disableexcludes=kubernetes

systemctl enable kubelet & systemctl start kubelet

kubeadm config print init-defaults > init-config.yaml

imageRepository: k8s.gcr.io替换为imageRepository: registry.aliyuncs.com/google_containers

kubeadm config images pull --config=init-config.yaml

运行kubeadm init安装master节点

kubeadm init --apiserver-advertise-address 192.168.137.220 --apiserver-bind-port=6443 --pod-network-cidr=10.244.0.0/16  --service-cidr=10.96.0.0/12 --kubernetes-version=1.22.0 --image-repository registry.aliyuncs.com/google_containers

kubeadm token list

kubeadm token create --ttl 0   #创建永久的token
# 获取ca证书sha256编码hash值
openssl x509 -pubkey -in /etc/kubernetes/pki/ca.crt | openssl rsa -pubin -outform der 2>/dev/null | openssl dgst -sha256 -hex | sed 's/^.* //'2cc3029123db737f234186636330e87b5510c173c669f513a9c0e0da395515b0
# node 节点加入
kubeadm join 10.167.11.153:6443 --token o4avtg.65ji6b778nyacw68 --discovery-token-ca-cert-hash sha256:2cc3029123db737f234186636330e87b5510c173c669f513a9c0e0da395515b0

安装node节点

# 该命令来自master安装成功后的最后两行信息
kubeadm join 192.168.137.220:6443 --token c32t70.x1atw35sha5mrnvc \
 --discovery-token-ca-cert-hash sha256:e053a0c73fbf74d5486784ef828650fe9cd9db95d3f6228832faee88fb8b199a 

1. 安装网络插件

# 安装Calico CNI插件
  kubectl apply -f "https://docs.projectcalico.org/manifests/calico.yaml"
  # 安装weave插件
  kubectl apply -f "https://cloud.weave.works/k8s/net?k8s-version=$(kubectl version | base64 | tr -d '\n')"

问题

docker-compose up -d 启动不起来，报下面的错误：

Cannot start service zk: oci runtime error: container_linux.go:235: starting container process caused "process_linux.go:258: applying cgroup configuration for process caused "Cannot set property TasksAccounting, or unknown property.""

解决方法：

yum update systemd

service docker restart