基础环境部署

k8s 集群 ip 规划

master1: 172.16.40.110/24
node1: 172.16.40.120/24

设置主机名 master

hostnamectl set-hostname master

设置主机名 node

hostnamectl set-hostname node

配置 主机名 解析

echo "172.16.40.110 master" >> /etc/hosts
echo "172.16.40.110 node" >> /etc/hosts

关闭防火墙

systemctl stop firewalld
systemctl disable firewalld

将 SELinux 设置为 permissive 模式

setenforce 0
sed -i 's/^SELINUX=enforcing$/SELINUX=permissive/' /etc/selinux/config

启动 ip 转发

cat > /etc/sysctl.d/k8s.conf <<EOF
net.ipv4.ip_forward = 1
EOF

sysctl --system

删除原有 repo 源

rm -rf /etc/yum.repos.d/*

配置阿里云 repo 源

curl -o /etc/yum.repos.d/CentOS-Base.repo https://mirrors.aliyun.com/repo/Centos-7.repo

yum install yum-utils -y

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

yum clean all && yum makecache

安装 containerd 容器运行时

yum install containerd -y
systemctl enable --now containerd.service

修改 containerd 配置

# cat/etc/containerd/config.toml
[plugins."io.containerd.grpc.v1.cri".containerd.runtimes.runc]
  [plugins."io.containerd.grpc.v1.cri".containerd.runtimes.runc.options]
    SystemdCgroup = true

# /etc/containerd/config.toml
sed -i 's/^disabled_plugins/#disabled_plugins/g' /etc/containerd/config.toml
systemctl restart containerd.service

[plugins."io.containerd.grpc.v1.cri"]
  sandbox_image = "registry.k8s.io/pause:3.9"
  [plugins."io.containerd.grpc.v1.cri".containerd.runtimes.runc]
    [plugins."io.containerd.grpc.v1.cri".containerd.runtimes.runc.options]
      SystemdCgroup = true

End