nano /etc/containerd/config.yoml

		[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."<ip-address / domain-name>:5000"]
          endpoint = ["<ip-address / domain-name>:5000"]
      [plugins."io.containerd.grpc.v1.cri".registry.configs]
        [plugins."io.containerd.grpc.v1.cri".registry.configs."<ip-address / domain-name>".tls]
          insecure_skip_verify = true

systemctl restart containerd