can not init k8s cluster when docker is not installed

[swiftslee]

INFO[21:48:32 CST] Installing docker ... ERRO[21:48:54 CST] Failed to install docker: % Total % Received % Xferd Average Speed Time Time Time Current Dload Upload Total Spent Left Speed 0 0 0 0 0 0 0 0 --:--:-- --:--:-- --:--:-- 0 0 0 0 0 0 0 0 --:--:-- --:--:-- --:--:-- 100 15149 100 15149 0 0 13277 0 0:00:01 0:00:01 --:--:-- 13100 15149 100 15149 0 0 13273 0 0:00:01 0:00:01 --:--:-- 13265 Executing docker install script, commit: 7cae5f8b0decc17d6571f9f52eb840fbc13b2737 sh -c apt-get update -qq >/dev/null W: The repository 'http://download.opensuse.org/repositories/devel:/kubic:/libcontainers:/stable:/cri-o:// Release' does not have a Release file. E: Failed to fetch http://download.opensuse.org/repositories/devel:/kubic:/libcontainers:/stable:/cri-o:///Packages 404 Not Found [IP: 195.135.221.134 80] E: Some index files failed to download. They have been ignored, or old ones used instead.: Failed to exec command: sudo -E /bin/sh -c "if [ -z $(which docker) ] || [ ! -e /var/run/docker.sock ]; then curl https://kubernetes.pek3b.qingstor.com/tools/kubekey/docker-install.sh | sh && systemctl enable docker && echo ewogICJsb2ctb3B0cyI6IHsKICAgICJtYXgtc2l6ZSI6ICI1bSIsCiAgICAibWF4LWZpbGUiOiIzIgogIH0sCiAgImV4ZWMtb3B0cyI6IFsibmF0aXZlLmNncm91cGRyaXZlcj1zeXN0ZW1kIl0KfQo= | base64 -d > /etc/docker/daemon.json && systemctl reload docker && systemctl restart docker; fi"

kk version version.BuildInfo{Version:"latest+unreleased", GitCommit:"640c1a32370d4b4e5ef8628a23c317243f91c046", GitTreeState:"clean", GoVersion:"go1.14.7"}

[pixiake]

Please provide os distribution and version.

[swiftslee]

Linux node1 4.15.0-122-generic #124~16.04.1-Ubuntu SMP Thu Oct 15 16:08:36 UTC 2020 x86_64 x86_64 x86_64 GNU/Linux I remember we have discussed this bug before. I suggest that kk shouldn't rely on the link.