minikube: None w/ Docker 18.09: [ERROR SystemVerification]: unsupported docker version: 18.09.0

This is a BUG REPORT

VM-less Minikube fails to start on Docker 18.09:

[ERROR SystemVerification]: unsupported docker version: 18.09.0

Environment: Minikube version: v1.12.2

  • OS: Debian 9
  • VM Driver : None

What happened: Our test script that installs Docker and VM-less Minikube started failing. Upgrading Minikube to 1.12.2 did not help.

**Logs:

+ export MINIKUBE_WANTUPDATENOTIFICATION=false
+ MINIKUBE_WANTUPDATENOTIFICATION=false
+ export MINIKUBE_WANTREPORTERRORPROMPT=false
+ MINIKUBE_WANTREPORTERRORPROMPT=false
+ export MINIKUBE_HOME=/home/not-root
+ MINIKUBE_HOME=/home/not-root
+ export CHANGE_MINIKUBE_NONE_USER=true
+ CHANGE_MINIKUBE_NONE_USER=true
+ mkdir -p /home/not-root/.kube
+ touch /home/not-root/.kube/config
+ export KUBECONFIG=/home/not-root/.kube/config
+ KUBECONFIG=/home/not-root/.kube/config
+ sudo -E /usr/local/bin/minikube start --vm-driver=none --kubernetes-version=v1.12.2
Starting local Kubernetes v1.12.2 cluster...
Starting VM...
Getting VM IP address...
Moving files into cluster...
Downloading kubeadm v1.12.2
Downloading kubelet v1.12.2
Finished Downloading kubeadm v1.12.2
Finished Downloading kubelet v1.12.2
Setting up certs...
Connecting to cluster...
Setting up kubeconfig...
Starting cluster components...
E1109 23:47:22.788065   12517 start.go:297] Error starting cluster:  kubeadm init error 
sudo /usr/bin/kubeadm init --config /var/lib/kubeadm.yaml --ignore-preflight-errors=DirAvailable--etc-kubernetes-manifests --ignore-preflight-errors=DirAvailable--data-minikube --ignore-preflight-errors=Port-10250 --ignore-preflight-errors=FileAvailable--etc-kubernetes-manifests-kube-scheduler.yaml --ignore-preflight-errors=FileAvailable--etc-kubernetes-manifests-kube-apiserver.yaml --ignore-preflight-errors=FileAvailable--etc-kubernetes-manifests-kube-controller-manager.yaml --ignore-preflight-errors=FileAvailable--etc-kubernetes-manifests-etcd.yaml --ignore-preflight-errors=Swap --ignore-preflight-errors=CRI  &&
sudo /usr/bin/kubeadm alpha phase addon coredns
 running command: : running command: 
sudo /usr/bin/kubeadm init --config /var/lib/kubeadm.yaml --ignore-preflight-errors=DirAvailable--etc-kubernetes-manifests --ignore-preflight-errors=DirAvailable--data-minikube --ignore-preflight-errors=Port-10250 --ignore-preflight-errors=FileAvailable--etc-kubernetes-manifests-kube-scheduler.yaml --ignore-preflight-errors=FileAvailable--etc-kubernetes-manifests-kube-apiserver.yaml --ignore-preflight-errors=FileAvailable--etc-kubernetes-manifests-kube-controller-manager.yaml --ignore-preflight-errors=FileAvailable--etc-kubernetes-manifests-etcd.yaml --ignore-preflight-errors=Swap --ignore-preflight-errors=CRI  &&
sudo /usr/bin/kubeadm alpha phase addon coredns

 output: [init] using Kubernetes version: v1.12.2
[preflight] running pre-flight checks
	[WARNING FileExisting-ebtables]: ebtables not found in system path
	[WARNING FileExisting-socat]: socat not found in system path
[preflight] The system verification failed. Printing the output from the verification:
KERNEL_VERSION: 4.9.0-8-amd64
CONFIG_NAMESPACES: enabled
CONFIG_NET_NS: enabled
CONFIG_PID_NS: enabled
CONFIG_IPC_NS: enabled
CONFIG_UTS_NS: enabled
CONFIG_CGROUPS: enabled
CONFIG_CGROUP_CPUACCT: enabled
CONFIG_CGROUP_DEVICE: enabled
CONFIG_CGROUP_FREEZER: enabled
CONFIG_CGROUP_SCHED: enabled
CONFIG_CPUSETS: enabled
CONFIG_MEMCG: enabled
CONFIG_INET: enabled
CONFIG_EXT4_FS: enabled (as module)
CONFIG_PROC_FS: enabled
CONFIG_NETFILTER_XT_TARGET_REDIRECT: enabled (as module)
CONFIG_NETFILTER_XT_MATCH_COMMENT: enabled (as module)
CONFIG_OVERLAY_FS: enabled (as module)
CONFIG_AUFS_FS: not set - Required for aufs.
CONFIG_BLK_DEV_DM: enabled (as module)
DOCKER_VERSION: 18.09.0
OS: Linux
CGROUPS_CPU: enabled
CGROUPS_CPUACCT: enabled
CGROUPS_CPUSET: enabled
CGROUPS_DEVICES: enabled
CGROUPS_FREEZER: enabled
CGROUPS_MEMORY: enabled
	[WARNING Hostname]: hostname "minikube" could not be reached
	[WARNING Hostname]: hostname "minikube" lookup minikube on 169.254.169.254:53: no such host
[preflight] Some fatal errors occurred:
	[ERROR SystemVerification]: unsupported docker version: 18.09.0
[preflight] If you know what you are doing, you can make a check non-fatal with `--ignore-preflight-errors=...`
: running command: 
sudo /usr/bin/kubeadm init --config /var/lib/kubeadm.yaml --ignore-preflight-errors=DirAvailable--etc-kubernetes-manifests --ignore-preflight-errors=DirAvailable--data-minikube --ignore-preflight-errors=Port-10250 --ignore-preflight-errors=FileAvailable--etc-kubernetes-manifests-kube-scheduler.yaml --ignore-preflight-errors=FileAvailable--etc-kubernetes-manifests-kube-apiserver.yaml --ignore-preflight-errors=FileAvailable--etc-kubernetes-manifests-kube-controller-manager.yaml --ignore-preflight-errors=FileAvailable--etc-kubernetes-manifests-etcd.yaml --ignore-preflight-errors=Swap --ignore-preflight-errors=CRI  &&
sudo /usr/bin/kubeadm alpha phase addon coredns

About this issue

  • Original URL
  • State: closed
  • Created 6 years ago
  • Reactions: 37
  • Comments: 24 (6 by maintainers)

Commits related to this issue

Most upvoted comments

Removing the old version with : sudo apt-get purge docker-ce sudo rm -rf /var/lib/docker

And then reinstall as @afbjorklund said :

apt-get update && apt-get install docker-ce=18.06.0~ce~3-0~ubuntu

Worked for me.

+20
gatsbys on Nov 29, 2018

How about this:

kubeadm init [...] --ignore-preflight-errors=SystemVerification
+15
stucki on Nov 25, 2018

Confirmed. I see the same.

+13
ryanolson on Nov 10, 2018

@tstromberg : according to the kubeadm documentation, it is supposed to be on “hold” for now:

## Install docker.
apt-get update && apt-get install docker-ce=18.06.0~ce~3-0~ubuntu

## Install docker.
yum update && yum install docker-ce-18.06.1.ce

https://kubernetes.io/docs/setup/cri/#docker

I also dislike the way that the new “containerd.io” package now conflicts with “runc”, breaking apt…

Unpacking containerd.io (1.2.0~rc.2-1) ...
dpkg: error processing archive /var/cache/apt/archives/containerd.io_1.2.0~rc.2-1_amd64.deb (--unpack):
 trying to overwrite '/usr/sbin/runc', which is also in package runc 1.0.0~rc2+docker1.13.1-0ubuntu1~16.04.1
dpkg-deb: error: subprocess paste was killed by signal (Broken pipe)

Then again “cri-o-1.10” uses “cri-o-runc”, so I guess they can coexist. Just bad upgrade experience.

+9
afbjorklund on Nov 13, 2018

@afbjorklund kubernetes pre-flight checks have 3 possible outcome: OK, WARNING, ERROR.

The docker version check can return the 3 outcomes:

  • supported version: OK
  • unsupported but recognized version: WARNING
  • all others: ERROR

Since docker 18.09 we get an ERROR instead of an expected WARNING.

Analysis

Code

https://github.com/kubernetes/kubernetes/blame/master/cmd/kubeadm/app/util/system/docker_validator.go#L73-L99

  • matched is for supported versions: in our case it’s false
  • then it checks for recognized version with \d{2}\.\d+\.\d+-[a-z]{2} regex

Expected result: the ver regex matches on the 18.09 docker version, and thus returns a WARNING.

Actual result: the ver regex does no match, and thus returns an ERROR.

Docker versions

18.06

$ docker version
Client:
 Version:           18.06.1-ce
 API version:       1.38
 Go version:        go1.10.3
 Git commit:        e68fc7a
 Built:             Tue Aug 21 17:24:56 2018
 OS/Arch:           linux/amd64
 Experimental:      false

Server:
 Engine:
  Version:          18.06.1-ce
  API version:      1.38 (minimum version 1.12)
  Go version:       go1.10.3
  Git commit:       e68fc7a
  Built:            Tue Aug 21 17:23:21 2018
  OS/Arch:          linux/amd64
  Experimental:     false

18.09

$ docker version
Client:
 Version:           18.09.0
 API version:       1.39
 Go version:        go1.10.4
 Git commit:        4d60db4
 Built:             Wed Nov  7 00:49:01 2018
 OS/Arch:           linux/amd64
 Experimental:      false

Server: Docker Engine - Community
 Engine:
  Version:          18.09.0
  API version:      1.39 (minimum version 1.12)
  Go version:       go1.10.4
  Git commit:       4d60db4
  Built:            Wed Nov  7 00:16:44 2018
  OS/Arch:          linux/amd64
  Experimental:     false

They dropped the -ce suffix in this new version => the regex should be updated.

+4
thomas-riccardi on Nov 13, 2018

it’s helpful to get the exact docker-ce version number on non-ubuntu debian versions:

apt-cache madison docker-ce | grep 18.06 | awk '{print $3}' | head -n 1
+2
balopat on Nov 13, 2018

if you are using ubuntu 16.04, this is the magic command that solves it all sudo apt-get install docker.io=18.06.1-0ubuntu1.2~16.04.1

+1
marcosdiez on Mar 12, 2019
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