安装Containerd及常用工具

使用场景

• containerd作为docker的核心组件，相比docker更原始更轻量化k8s背书，也是主流趋势
  最重要的就是开源阿帕奇许可证 2.0，商用免费，可以给客户安装时候的避免版权问题

安装流程

1. 安装containerd

wget https://github.com/containerd/containerd/releases/download/v1.7.3/containerd-1.7.3-linux-amd64.tar.gz
tar Cxzvf /usr/local containerd-1.7.3-linux-amd64.tar.gz

2. 设置containerd开机自启

wget -P /usr/local/lib/systemd/system https://raw.githubusercontent.com/containerd/containerd/main/containerd.service
systemctl daemon-reload
systemctl enable --now containerd

3. 安装containerd容器运行工具

wget https://github.com/opencontainers/runc/releases/download/v1.1.8/runc.amd64
install -m 755 runc.amd64 /usr/local/sbin/runc

4. 安装containerd容器网络接口工具

wget https://github.com/containernetworking/plugins/releases/download/v1.3.0/cni-plugins-linux-amd64-v1.3.0.tgz
mkdir -p /opt/cni/bin
tar Cxzvf /opt/cni/bin cni-plugins-linux-amd64-v1.1.1.tgz

5. 安装containerd容器网络接口工具

wget https://github.com/containerd/nerdctl/releases/download/v1.5.0/nerdctl-1.5.0-linux-amd64.tar.gz
tar Cxzvf /usr/local/bin nerdctl-1.5.0-linux-amd64.tar.gz

• nerdctl命令可以完美代替docker命令，例如nerdctl images等价于docker images