1 修改config.toml配置文件

vim /etc/containerd/config.toml

修改配置文件如下:

[plugins."io.containerd.grpc.v1.cri".registry]
      [plugins."io.containerd.grpc.v1.cri".registry.mirrors]
        [plugins."io.containerd.grpc.v1.cri".registry.mirrors."docker.io"]
          #endpoint = ["https://registry-1.docker.io"]
        [plugins."io.containerd.grpc.v1.cri".registry.mirrors."192.168.20.4:8930"]
          endpoint = ["http://192.168.20.4:8930"]
      [plugins."io.containerd.grpc.v1.cri".registry.configs]
        [plugins."io.containerd.grpc.v1.cri".registry.configs."192.168.20.4:8930".auth]
          username = "username"
          password = "password"

2 重启生效

systemctl daemon-reload && systemctl restart containerd.service

3 测试

拉取mysql镜像测试

crictl pull 192.168.20.4:8930/library/mysql:5.7

执行结果如下