1. 配置国内安装docker和containerd的阿里云在线源

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

2. 安装Containerd

yum -y install containerd.io-1.6.22*    #安装Containerd1.6
yum install containerd -y    #安装Containerd
systemctl start containerd && systemctl enable containerd    #启动containerd

3. 配置containerd

mkdir -p /etc/containerd 
containerd config default > /etc/containerd/config.toml

vim  /etc/containerd/config.toml 
#            SystemdCgroup = false   #把false修改为true

# 把149-155行删除，复制如下内容

      [plugins."io.containerd.grpc.v1.cri".registry.mirrors]
        [plugins."io.containerd.grpc.v1.cri".registry.mirrors."docker.io"]
            endpoint = ["https://docker.io","https://6qxc6b6n.mirror.aliyuncs.com","https://docker.m.daocloud.io","https://dockerproxy.com/"]
        [plugins."io.containerd.grpc.v1.cri".registry.mirrors."gcr.io"]
            endpoint = ["https://gcr.m.daocloud.io","https://gcr.nju.edu.cn","https://gcr.dockerproxy.com"]
        [plugins."io.containerd.grpc.v1.cri".registry.mirrors."k8s.gcr.io"]
            endpoint = ["https://registry.aliyuncs.com/k8sxio","https://k8s-gcr.m.daocloud.io","https://gcr.nju.edu.cn/google-containers/","https://k8s.dockerproxy.com/"]
        [plugins."io.containerd.grpc.v1.cri".registry.mirrors."quay.io"]
            endpoint = ["https://quay.m.daocloud.io","https://quay.nju.edu.cn"]
        [plugins."io.containerd.grpc.v1.cri".registry.mirrors."registry.k8s.io"]
            endpoint = ["https://k8s.m.daocloud.io","https://k8s.nju.edu.cn"]
        [plugins."io.containerd.grpc.v1.cri".registry.mirrors."docker.elastic.co"]
            endpoint = ["https://elastic.m.daocloud.io"]
        [plugins."io.containerd.grpc.v1.cri".registry.mirrors."ghcr.io"]
            endpoint = ["https://ghcr.m.daocloud.io","https://ghcr.nju.edu.cn"]

4. 修改配置后重启containerd

systemctl daemon-reload && systemctl restart containerd
systemctl status containerd
containerd --v