"✗ Joining worker nodes 🚜" fails

[iCarossio]

Hi,

Whether it is on my Mac installation (last stable versions of macOS, docker, kind, kubectl) or within a Debian a Docker in Docker, I got the following error when running kind create cluster --name=kubegoat --config=config.yaml.

Feel free if you have any piece of idea / advice to solve the issue :)

Thanks.

---

The verbose error:

Creating cluster "kubegoat" ...
 ✓ Ensuring node image (kindest/node:v1.18.2) 🖼
 ✓ Preparing nodes 📦 📦  
 ✓ Writing configuration 📜 
 ✓ Starting control-plane 🕹️ 
 ✓ Installing CNI 🔌 
 ✓ Installing StorageClass 💾 
 ✗ Joining worker nodes 🚜 
ERROR: failed to create cluster: failed to join node with kubeadm: command "docker exec --privileged kubegoat-worker kubeadm join --config /kind/kubeadm.conf --ignore-preflight-errors=all --v=6" failed with error: exit status 1
Command Output: W0730 12:20:29.853736     374 join.go:346] [preflight] WARNING: JoinControlPane.controlPlane settings will be ignored when control-plane flag is not set.
I0730 12:20:29.853812     374 join.go:371] [preflight] found NodeName empty; using OS hostname as NodeName
I0730 12:20:29.853834     374 joinconfiguration.go:74] loading configuration from "/kind/kubeadm.conf"
I0730 12:20:29.856929     374 preflight.go:90] [preflight] Running general checks
[preflight] Running pre-flight checks
I0730 12:20:29.857383     374 checks.go:249] validating the existence and emptiness of directory /etc/kubernetes/manifests
I0730 12:20:29.857453     374 checks.go:286] validating the existence of file /etc/kubernetes/kubelet.conf
I0730 12:20:29.857481     374 checks.go:286] validating the existence of file /etc/kubernetes/bootstrap-kubelet.conf
I0730 12:20:29.857515     374 checks.go:102] validating the container runtime
I0730 12:20:29.923826     374 checks.go:376] validating the presence of executable crictl
I0730 12:20:29.923941     374 checks.go:335] validating the contents of file /proc/sys/net/bridge/bridge-nf-call-iptables
	[WARNING FileContent--proc-sys-net-bridge-bridge-nf-call-iptables]: /proc/sys/net/bridge/bridge-nf-call-iptables does not exist
I0730 12:20:29.924112     374 checks.go:335] validating the contents of file /proc/sys/net/ipv4/ip_forward
I0730 12:20:29.924194     374 checks.go:649] validating whether swap is enabled or not
	[WARNING Swap]: running with swap on is not supported. Please disable swap
I0730 12:20:29.924334     374 checks.go:376] validating the presence of executable conntrack
I0730 12:20:29.926041     374 checks.go:376] validating the presence of executable ip
I0730 12:20:29.926154     374 checks.go:376] validating the presence of executable iptables
I0730 12:20:29.926187     374 checks.go:376] validating the presence of executable mount
I0730 12:20:29.926239     374 checks.go:376] validating the presence of executable nsenter
I0730 12:20:29.926297     374 checks.go:376] validating the presence of executable ebtables
I0730 12:20:29.926481     374 checks.go:376] validating the presence of executable ethtool
I0730 12:20:29.926575     374 checks.go:376] validating the presence of executable socat
I0730 12:20:29.926618     374 checks.go:376] validating the presence of executable tc
I0730 12:20:29.926664     374 checks.go:376] validating the presence of executable touch
I0730 12:20:29.926736     374 checks.go:520] running all checks
I0730 12:20:29.933609     374 checks.go:406] checking whether the given node name is reachable using net.LookupHost
I0730 12:20:29.935854     374 checks.go:618] validating kubelet version
I0730 12:20:30.003623     374 checks.go:128] validating if the service is enabled and active
I0730 12:20:30.014532     374 checks.go:201] validating availability of port 10250
I0730 12:20:30.014700     374 checks.go:286] validating the existence of file /etc/kubernetes/pki/ca.crt
I0730 12:20:30.014797     374 checks.go:432] validating if the connectivity type is via proxy or direct
I0730 12:20:30.014833     374 join.go:441] [preflight] Discovering cluster-info
I0730 12:20:30.014866     374 token.go:78] [discovery] Created cluster-info discovery client, requesting info from "kubegoat-control-plane:6443"
I0730 12:20:30.025318     374 round_trippers.go:443] GET https://kubegoat-control-plane:6443/api/v1/namespaces/kube-public/configmaps/cluster-info?timeout=10s 401 Unauthorized in 7 milliseconds
I0730 12:20:30.025670     374 token.go:215] [discovery] Failed to request cluster-info, will try again: Unauthorized
I0730 12:20:30.026551     374 round_trippers.go:443] GET https://kubegoat-control-plane:6443/api/v1/namespaces/kube-public/configmaps/cluster-info?timeout=10s 401 Unauthorized in 0 milliseconds
I0730 12:20:30.026666     374 token.go:215] [discovery] Failed to request cluster-info, will try again: Unauthorized
I0730 12:20:36.058535     374 round_trippers.go:443] GET https://kubegoat-control-plane:6443/api/v1/namespaces/kube-public/configmaps/cluster-info?timeout=10s 401 Unauthorized in 0 milliseconds
I0730 12:20:36.058681     374 token.go:215] [discovery] Failed to request cluster-info, will try again: Unauthorized
I0730 12:20:41.158518     374 round_trippers.go:443] GET https://kubegoat-control-plane:6443/api/v1/namespaces/kube-public/configmaps/cluster-info?timeout=10s 401 Unauthorized in 0 milliseconds
I0730 12:20:41.158677     374 token.go:215] [discovery] Failed to request cluster-info, will try again: Unauthorized
I0730 12:20:46.405262     374 round_trippers.go:443] GET https://kubegoat-control-plane:6443/api/v1/namespaces/kube-public/configmaps/cluster-info?timeout=10s 401 Unauthorized in 1 milliseconds
I0730 12:20:46.406533     374 token.go:215] [discovery] Failed to request cluster-info, will try again: Unauthorized
I0730 12:20:51.553262     374 round_trippers.go:443] GET https://kubegoat-control-plane:6443/api/v1/namespaces/kube-public/configmaps/cluster-info?timeout=10s 401 Unauthorized in 0 milliseconds
I0730 12:20:51.553484     374 token.go:215] [discovery] Failed to request cluster-info, will try again: Unauthorized
I0730 12:20:56.973276     374 round_trippers.go:443] GET https://kubegoat-control-plane:6443/api/v1/namespaces/kube-public/configmaps/cluster-info?timeout=10s 401 Unauthorized in 1 milliseconds
I0730 12:20:56.973475     374 token.go:215] [discovery] Failed to request cluster-info, will try again: Unauthorized
I0730 12:21:02.751754     374 round_trippers.go:443] GET https://kubegoat-control-plane:6443/api/v1/namespaces/kube-public/configmaps/cluster-info?timeout=10s 401 Unauthorized in 1 milliseconds
I0730 12:21:02.752027     374 token.go:215] [discovery] Failed to request cluster-info, will try again: Unauthorized
I0730 12:21:08.974865     374 round_trippers.go:443] GET https://kubegoat-control-plane:6443/api/v1/namespaces/kube-public/configmaps/cluster-info?timeout=10s 401 Unauthorized in 1 milliseconds
I0730 12:21:08.975058     374 token.go:215] [discovery] Failed to request cluster-info, will try again: Unauthorized
I0730 12:21:14.297922     374 round_trippers.go:443] GET https://kubegoat-control-plane:6443/api/v1/namespaces/kube-public/configmaps/cluster-info?timeout=10s 401 Unauthorized in 0 milliseconds
I0730 12:21:14.298071     374 token.go:215] [discovery] Failed to request cluster-info, will try again: Unauthorized
I0730 12:21:19.870965     374 round_trippers.go:443] GET https://kubegoat-control-plane:6443/api/v1/namespaces/kube-public/configmaps/cluster-info?timeout=10s 401 Unauthorized in 1 milliseconds
I0730 12:21:19.871122     374 token.go:215] [discovery] Failed to request cluster-info, will try again: Unauthorized
I0730 12:21:25.316414     374 round_trippers.go:443] GET https://kubegoat-control-plane:6443/api/v1/namespaces/kube-public/configmaps/cluster-info?timeout=10s 401 Unauthorized in 1 milliseconds
I0730 12:21:25.316601     374 token.go:215] [discovery] Failed to request cluster-info, will try again: Unauthorized
I0730 12:21:31.021326     374 round_trippers.go:443] GET https://kubegoat-control-plane:6443/api/v1/namespaces/kube-public/configmaps/cluster-info?timeout=10s 401 Unauthorized in 0 milliseconds
I0730 12:21:31.021451     374 token.go:215] [discovery] Failed to request cluster-info, will try again: Unauthorized
I0730 12:21:36.447836     374 round_trippers.go:443] GET https://kubegoat-control-plane:6443/api/v1/namespaces/kube-public/configmaps/cluster-info?timeout=10s 401 Unauthorized in 1 milliseconds
I0730 12:21:36.448020     374 token.go:215] [discovery] Failed to request cluster-info, will try again: Unauthorized
I0730 12:21:41.889369     374 round_trippers.go:443] GET https://kubegoat-control-plane:6443/api/v1/namespaces/kube-public/configmaps/cluster-info?timeout=10s 401 Unauthorized in 1 milliseconds
I0730 12:21:41.889602     374 token.go:215] [discovery] Failed to request cluster-info, will try again: Unauthorized
I0730 12:21:47.910038     374 round_trippers.go:443] GET https://kubegoat-control-plane:6443/api/v1/namespaces/kube-public/configmaps/cluster-info?timeout=10s 401 Unauthorized in 0 milliseconds
I0730 12:21:47.910219     374 token.go:215] [discovery] Failed to request cluster-info, will try again: Unauthorized
I0730 12:21:54.609647     374 round_trippers.go:443] GET https://kubegoat-control-plane:6443/api/v1/namespaces/kube-public/configmaps/cluster-info?timeout=10s 401 Unauthorized in 1405 milliseconds
I0730 12:21:54.610081     374 token.go:215] [discovery] Failed to request cluster-info, will try again: Unauthorized
I0730 12:22:00.468375     374 round_trippers.go:443] GET https://kubegoat-control-plane:6443/api/v1/namespaces/kube-public/configmaps/cluster-info?timeout=10s 401 Unauthorized in 1 milliseconds
I0730 12:22:00.468551     374 token.go:215] [discovery] Failed to request cluster-info, will try again: Unauthorized
I0730 12:22:06.763886     374 round_trippers.go:443] GET https://kubegoat-control-plane:6443/api/v1/namespaces/kube-public/configmaps/cluster-info?timeout=10s 401 Unauthorized in 0 milliseconds
I0730 12:22:06.764049     374 token.go:215] [discovery] Failed to request cluster-info, will try again: Unauthorized
I0730 12:22:12.205210     374 round_trippers.go:443] GET https://kubegoat-control-plane:6443/api/v1/namespaces/kube-public/configmaps/cluster-info?timeout=10s 401 Unauthorized in 0 milliseconds
I0730 12:22:12.205374     374 token.go:215] [discovery] Failed to request cluster-info, will try again: Unauthorized
I0730 12:22:17.652205     374 round_trippers.go:443] GET https://kubegoat-control-plane:6443/api/v1/namespaces/kube-public/configmaps/cluster-info?timeout=10s 401 Unauthorized in 0 milliseconds
I0730 12:22:17.652320     374 token.go:215] [discovery] Failed to request cluster-info, will try again: Unauthorized
I0730 12:22:23.748061     374 round_trippers.go:443] GET https://kubegoat-control-plane:6443/api/v1/namespaces/kube-public/configmaps/cluster-info?timeout=10s 401 Unauthorized in 0 milliseconds
I0730 12:22:23.748328     374 token.go:215] [discovery] Failed to request cluster-info, will try again: Unauthorized
I0730 12:22:29.059743     374 round_trippers.go:443] GET https://kubegoat-control-plane:6443/api/v1/namespaces/kube-public/configmaps/cluster-info?timeout=10s 401 Unauthorized in 0 milliseconds
I0730 12:22:29.059873     374 token.go:215] [discovery] Failed to request cluster-info, will try again: Unauthorized
I0730 12:22:35.362006     374 round_trippers.go:443] GET https://kubegoat-control-plane:6443/api/v1/namespaces/kube-public/configmaps/cluster-info?timeout=10s 401 Unauthorized in 3 milliseconds
I0730 12:22:35.362759     374 token.go:215] [discovery] Failed to request cluster-info, will try again: Unauthorized
I0730 12:22:41.409960     374 round_trippers.go:443] GET https://kubegoat-control-plane:6443/api/v1/namespaces/kube-public/configmaps/cluster-info?timeout=10s 401 Unauthorized in 1 milliseconds
I0730 12:22:41.410835     374 token.go:215] [discovery] Failed to request cluster-info, will try again: Unauthorized
I0730 12:22:47.197680     374 round_trippers.go:443] GET https://kubegoat-control-plane:6443/api/v1/namespaces/kube-public/configmaps/cluster-info?timeout=10s 401 Unauthorized in 0 milliseconds
I0730 12:22:47.197960     374 token.go:215] [discovery] Failed to request cluster-info, will try again: Unauthorized
I0730 12:22:52.241638     374 round_trippers.go:443] GET https://kubegoat-control-plane:6443/api/v1/namespaces/kube-public/configmaps/cluster-info?timeout=10s 401 Unauthorized in 0 milliseconds
I0730 12:22:52.241806     374 token.go:215] [discovery] Failed to request cluster-info, will try again: Unauthorized
I0730 12:22:57.446637     374 round_trippers.go:443] GET https://kubegoat-control-plane:6443/api/v1/namespaces/kube-public/configmaps/cluster-info?timeout=10s 401 Unauthorized in 1 milliseconds
I0730 12:22:57.446851     374 token.go:215] [discovery] Failed to request cluster-info, will try again: Unauthorized
I0730 12:23:03.359738     374 round_trippers.go:443] GET https://kubegoat-control-plane:6443/api/v1/namespaces/kube-public/configmaps/cluster-info?timeout=10s 401 Unauthorized in 1 milliseconds
I0730 12:23:03.360029     374 token.go:215] [discovery] Failed to request cluster-info, will try again: Unauthorized
I0730 12:23:09.825676     374 round_trippers.go:443] GET https://kubegoat-control-plane:6443/api/v1/namespaces/kube-public/configmaps/cluster-info?timeout=10s 401 Unauthorized in 1 milliseconds
I0730 12:23:09.825924     374 token.go:215] [discovery] Failed to request cluster-info, will try again: Unauthorized
I0730 12:23:14.946323     374 round_trippers.go:443] GET https://kubegoat-control-plane:6443/api/v1/namespaces/kube-public/configmaps/cluster-info?timeout=10s 401 Unauthorized in 0 milliseconds
I0730 12:23:14.946621     374 token.go:215] [discovery] Failed to request cluster-info, will try again: Unauthorized
I0730 12:23:20.841070     374 round_trippers.go:443] GET https://kubegoat-control-plane:6443/api/v1/namespaces/kube-public/configmaps/cluster-info?timeout=10s 401 Unauthorized in 1 milliseconds
I0730 12:23:20.841275     374 token.go:215] [discovery] Failed to request cluster-info, will try again: Unauthorized
I0730 12:23:25.911940     374 round_trippers.go:443] GET https://kubegoat-control-plane:6443/api/v1/namespaces/kube-public/configmaps/cluster-info?timeout=10s 401 Unauthorized in 16 milliseconds
I0730 12:23:25.912201     374 token.go:215] [discovery] Failed to request cluster-info, will try again: Unauthorized
I0730 12:23:31.174222     374 round_trippers.go:443] GET https://kubegoat-control-plane:6443/api/v1/namespaces/kube-public/configmaps/cluster-info?timeout=10s 401 Unauthorized in 1 milliseconds
I0730 12:23:31.174398     374 token.go:215] [discovery] Failed to request cluster-info, will try again: Unauthorized
I0730 12:23:36.987986     374 round_trippers.go:443] GET https://kubegoat-control-plane:6443/api/v1/namespaces/kube-public/configmaps/cluster-info?timeout=10s 401 Unauthorized in 1 milliseconds
I0730 12:23:36.988441     374 token.go:215] [discovery] Failed to request cluster-info, will try again: Unauthorized
I0730 12:23:42.806017     374 round_trippers.go:443] GET https://kubegoat-control-plane:6443/api/v1/namespaces/kube-public/configmaps/cluster-info?timeout=10s 401 Unauthorized in 0 milliseconds
I0730 12:23:42.806121     374 token.go:215] [discovery] Failed to request cluster-info, will try again: Unauthorized
I0730 12:23:48.226915     374 round_trippers.go:443] GET https://kubegoat-control-plane:6443/api/v1/namespaces/kube-public/configmaps/cluster-info?timeout=10s 401 Unauthorized in 1 milliseconds
I0730 12:23:48.227095     374 token.go:215] [discovery] Failed to request cluster-info, will try again: Unauthorized
I0730 12:23:53.829447     374 round_trippers.go:443] GET https://kubegoat-control-plane:6443/api/v1/namespaces/kube-public/configmaps/cluster-info?timeout=10s 401 Unauthorized in 1 milliseconds
I0730 12:23:53.829586     374 token.go:215] [discovery] Failed to request cluster-info, will try again: Unauthorized
I0730 12:23:59.627035     374 round_trippers.go:443] GET https://kubegoat-control-plane:6443/api/v1/namespaces/kube-public/configmaps/cluster-info?timeout=10s 401 Unauthorized in 0 milliseconds
I0730 12:23:59.627156     374 token.go:215] [discovery] Failed to request cluster-info, will try again: Unauthorized
I0730 12:24:05.009087     374 round_trippers.go:443] GET https://kubegoat-control-plane:6443/api/v1/namespaces/kube-public/configmaps/cluster-info?timeout=10s 401 Unauthorized in 1 milliseconds
I0730 12:24:05.009384     374 token.go:215] [discovery] Failed to request cluster-info, will try again: Unauthorized
I0730 12:24:10.434684     374 round_trippers.go:443] GET https://kubegoat-control-plane:6443/api/v1/namespaces/kube-public/configmaps/cluster-info?timeout=10s 401 Unauthorized in 1 milliseconds
I0730 12:24:10.435356     374 token.go:215] [discovery] Failed to request cluster-info, will try again: Unauthorized
I0730 12:24:16.620367     374 round_trippers.go:443] GET https://kubegoat-control-plane:6443/api/v1/namespaces/kube-public/configmaps/cluster-info?timeout=10s 401 Unauthorized in 1 milliseconds
I0730 12:24:16.620542     374 token.go:215] [discovery] Failed to request cluster-info, will try again: Unauthorized
I0730 12:24:22.165278     374 round_trippers.go:443] GET https://kubegoat-control-plane:6443/api/v1/namespaces/kube-public/configmaps/cluster-info?timeout=10s 401 Unauthorized in 1 milliseconds
I0730 12:24:22.165537     374 token.go:215] [discovery] Failed to request cluster-info, will try again: Unauthorized
I0730 12:24:28.453723     374 round_trippers.go:443] GET https://kubegoat-control-plane:6443/api/v1/namespaces/kube-public/configmaps/cluster-info?timeout=10s 401 Unauthorized in 1 milliseconds
I0730 12:24:28.453852     374 token.go:215] [discovery] Failed to request cluster-info, will try again: Unauthorized
I0730 12:24:33.901345     374 round_trippers.go:443] GET https://kubegoat-control-plane:6443/api/v1/namespaces/kube-public/configmaps/cluster-info?timeout=10s 401 Unauthorized in 1 milliseconds
I0730 12:24:33.901615     374 token.go:215] [discovery] Failed to request cluster-info, will try again: Unauthorized
I0730 12:24:40.245249     374 round_trippers.go:443] GET https://kubegoat-control-plane:6443/api/v1/namespaces/kube-public/configmaps/cluster-info?timeout=10s 401 Unauthorized in 1 milliseconds
I0730 12:24:40.245878     374 token.go:215] [discovery] Failed to request cluster-info, will try again: Unauthorized
I0730 12:24:45.394173     374 round_trippers.go:443] GET https://kubegoat-control-plane:6443/api/v1/namespaces/kube-public/configmaps/cluster-info?timeout=10s 401 Unauthorized in 1 milliseconds
I0730 12:24:45.394316     374 token.go:215] [discovery] Failed to request cluster-info, will try again: Unauthorized
I0730 12:24:54.169882     374 round_trippers.go:443] GET https://kubegoat-control-plane:6443/api/v1/namespaces/kube-public/configmaps/cluster-info?timeout=10s 401 Unauthorized in 2344 milliseconds
I0730 12:24:54.170027     374 token.go:215] [discovery] Failed to request cluster-info, will try again: Unauthorized
I0730 12:25:00.193818     374 round_trippers.go:443] GET https://kubegoat-control-plane:6443/api/v1/namespaces/kube-public/configmaps/cluster-info?timeout=10s 401 Unauthorized in 1 milliseconds
I0730 12:25:00.194128     374 token.go:215] [discovery] Failed to request cluster-info, will try again: Unauthorized
I0730 12:25:05.559617     374 round_trippers.go:443] GET https://kubegoat-control-plane:6443/api/v1/namespaces/kube-public/configmaps/cluster-info?timeout=10s 401 Unauthorized in 2 milliseconds
I0730 12:25:05.559807     374 token.go:215] [discovery] Failed to request cluster-info, will try again: Unauthorized
I0730 12:25:11.029007     374 round_trippers.go:443] GET https://kubegoat-control-plane:6443/api/v1/namespaces/kube-public/configmaps/cluster-info?timeout=10s 401 Unauthorized in 1 milliseconds
I0730 12:25:11.029224     374 token.go:215] [discovery] Failed to request cluster-info, will try again: Unauthorized
I0730 12:25:17.430442     374 round_trippers.go:443] GET https://kubegoat-control-plane:6443/api/v1/namespaces/kube-public/configmaps/cluster-info?timeout=10s 401 Unauthorized in 1 milliseconds
I0730 12:25:17.431183     374 token.go:215] [discovery] Failed to request cluster-info, will try again: Unauthorized
I0730 12:25:23.510742     374 round_trippers.go:443] GET https://kubegoat-control-plane:6443/api/v1/namespaces/kube-public/configmaps/cluster-info?timeout=10s 401 Unauthorized in 1 milliseconds
I0730 12:25:23.510850     374 token.go:215] [discovery] Failed to request cluster-info, will try again: Unauthorized
Unauthorized
couldn't validate the identity of the API Server
k8s.io/kubernetes/cmd/kubeadm/app/discovery.For
	/go/src/k8s.io/kubernetes/_output/dockerized/go/src/k8s.io/kubernetes/cmd/kubeadm/app/discovery/discovery.go:44
k8s.io/kubernetes/cmd/kubeadm/app/cmd.(*joinData).TLSBootstrapCfg
	/go/src/k8s.io/kubernetes/_output/dockerized/go/src/k8s.io/kubernetes/cmd/kubeadm/app/cmd/join.go:442
k8s.io/kubernetes/cmd/kubeadm/app/cmd.(*joinData).InitCfg
	/go/src/k8s.io/kubernetes/_output/dockerized/go/src/k8s.io/kubernetes/cmd/kubeadm/app/cmd/join.go:452
k8s.io/kubernetes/cmd/kubeadm/app/cmd/phases/join.runPreflight
	/go/src/k8s.io/kubernetes/_output/dockerized/go/src/k8s.io/kubernetes/cmd/kubeadm/app/cmd/phases/join/preflight.go:95
k8s.io/kubernetes/cmd/kubeadm/app/cmd/phases/workflow.(*Runner).Run.func1
	/go/src/k8s.io/kubernetes/_output/dockerized/go/src/k8s.io/kubernetes/cmd/kubeadm/app/cmd/phases/workflow/runner.go:234
k8s.io/kubernetes/cmd/kubeadm/app/cmd/phases/workflow.(*Runner).visitAll
	/go/src/k8s.io/kubernetes/_output/dockerized/go/src/k8s.io/kubernetes/cmd/kubeadm/app/cmd/phases/workflow/runner.go:422
k8s.io/kubernetes/cmd/kubeadm/app/cmd/phases/workflow.(*Runner).Run
	/go/src/k8s.io/kubernetes/_output/dockerized/go/src/k8s.io/kubernetes/cmd/kubeadm/app/cmd/phases/workflow/runner.go:207
k8s.io/kubernetes/cmd/kubeadm/app/cmd.NewCmdJoin.func1
	/go/src/k8s.io/kubernetes/_output/dockerized/go/src/k8s.io/kubernetes/cmd/kubeadm/app/cmd/join.go:170
k8s.io/kubernetes/vendor/github.com/spf13/cobra.(*Command).execute
	/go/src/k8s.io/kubernetes/_output/dockerized/go/src/k8s.io/kubernetes/vendor/github.com/spf13/cobra/command.go:826
k8s.io/kubernetes/vendor/github.com/spf13/cobra.(*Command).ExecuteC
	/go/src/k8s.io/kubernetes/_output/dockerized/go/src/k8s.io/kubernetes/vendor/github.com/spf13/cobra/command.go:914
k8s.io/kubernetes/vendor/github.com/spf13/cobra.(*Command).Execute
	/go/src/k8s.io/kubernetes/_output/dockerized/go/src/k8s.io/kubernetes/vendor/github.com/spf13/cobra/command.go:864
k8s.io/kubernetes/cmd/kubeadm/app.Run
	/go/src/k8s.io/kubernetes/_output/dockerized/go/src/k8s.io/kubernetes/cmd/kubeadm/app/kubeadm.go:50
main.main
	_output/dockerized/go/src/k8s.io/kubernetes/cmd/kubeadm/kubeadm.go:25
runtime.main
	/usr/local/go/src/runtime/proc.go:203
runtime.goexit
	/usr/local/go/src/runtime/asm_amd64.s:1357
error execution phase preflight
k8s.io/kubernetes/cmd/kubeadm/app/cmd/phases/workflow.(*Runner).Run.func1
	/go/src/k8s.io/kubernetes/_output/dockerized/go/src/k8s.io/kubernetes/cmd/kubeadm/app/cmd/phases/workflow/runner.go:235
k8s.io/kubernetes/cmd/kubeadm/app/cmd/phases/workflow.(*Runner).visitAll
	/go/src/k8s.io/kubernetes/_output/dockerized/go/src/k8s.io/kubernetes/cmd/kubeadm/app/cmd/phases/workflow/runner.go:422
k8s.io/kubernetes/cmd/kubeadm/app/cmd/phases/workflow.(*Runner).Run
	/go/src/k8s.io/kubernetes/_output/dockerized/go/src/k8s.io/kubernetes/cmd/kubeadm/app/cmd/phases/workflow/runner.go:207
k8s.io/kubernetes/cmd/kubeadm/app/cmd.NewCmdJoin.func1
	/go/src/k8s.io/kubernetes/_output/dockerized/go/src/k8s.io/kubernetes/cmd/kubeadm/app/cmd/join.go:170
k8s.io/kubernetes/vendor/github.com/spf13/cobra.(*Command).execute
	/go/src/k8s.io/kubernetes/_output/dockerized/go/src/k8s.io/kubernetes/vendor/github.com/spf13/cobra/command.go:826
k8s.io/kubernetes/vendor/github.com/spf13/cobra.(*Command).ExecuteC
	/go/src/k8s.io/kubernetes/_output/dockerized/go/src/k8s.io/kubernetes/vendor/github.com/spf13/cobra/command.go:914
k8s.io/kubernetes/vendor/github.com/spf13/cobra.(*Command).Execute
	/go/src/k8s.io/kubernetes/_output/dockerized/go/src/k8s.io/kubernetes/vendor/github.com/spf13/cobra/command.go:864
k8s.io/kubernetes/cmd/kubeadm/app.Run
	/go/src/k8s.io/kubernetes/_output/dockerized/go/src/k8s.io/kubernetes/cmd/kubeadm/app/kubeadm.go:50
main.main
	_output/dockerized/go/src/k8s.io/kubernetes/cmd/kubeadm/kubeadm.go:25
runtime.main
	/usr/local/go/src/runtime/proc.go:203
runtime.goexit
	/usr/local/go/src/runtime/asm_amd64.s:1357

---

FYI, here is how I created my Docker in Docker :
docker run -it -v /var/run/docker.sock:/var/run/docker.sock debian bash

And inside the Docker :

cd ~ 
apt update
apt install -y curl nano git

curl -o install.sh https://get.docker.com
chmod +x install.sh
./install.sh

curl -LO https://storage.googleapis.com/kubernetes-release/release/$(curl -s https://storage.googleapis.com/kubernetes-release/release/stable.txt)/bin/linux/amd64/kubectl
chmod +x ./kubectl
mv ./kubectl /usr/local/bin/kubectl

curl -o kind https://github.com/kubernetes-sigs/kind/releases/download/v0.8.1/kind-linux-amd64
chmod +x ./kind
mv ./kind /usr/local/bin/kind

git clone https://github.com/ksoclabs/kube-goat.git
cd kube-goat/deploy/kind/
kind create cluster --name=kubegoat --config=config.yaml

[kajalNair]

Hi
I tried same steps and now I am getting "/usr/local/bin/kind: line 1: syntax error near unexpected token <' /usr/local/bin/kind: line 1: You are being redirected.'" error.
Can you please help.
Thank you in advance.

[kajalNair]

Hi
I tried same steps and now I am getting this error.

/usr/local/bin/kind: line 1: syntax error near unexpected token `<'
/usr/local/bin/kind: line 1: `<html><body>You are being <a href="https://github-production-release-asset-2e65be.s3.amazonaws.com/148545807/3c09fc80-8bcf-11ea-8d53-0646d9b80782?X-Amz-Algorithm=AWS4-HMAC-SHA256&amp;X-Amz-Credential=AKIAIWNJYAX4CSVEH53A%2F20200827%2Fus-east-1%2Fs3%2Faws4_request&amp;X-Amz-Date=20200827T115859Z&amp;X-Amz-Expires=300&amp;X-Amz-Signature=4fac37a3fe3c942871f8022e931de33aea4264e1d48f273ac7b577b229fffc71&amp;X-Amz-SignedHeaders=host&amp;actor_id=0&amp;key_id=0&amp;repo_id=148545807&amp;response-content-disposition=attachment%3B%20filename%3Dkind-linux-amd64&amp;response-content-type=application%2Foctet-stream">redirected</a>.</body></html>'