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Posted to issues@openwhisk.apache.org by GitBox <gi...@apache.org> on 2018/06/15 14:24:56 UTC
[GitHub] dgrove-oss opened a new issue #225: TravisCI testing with
Kubernetes 1.10
dgrove-oss opened a new issue #225: TravisCI testing with Kubernetes 1.10
URL: https://github.com/apache/incubator-openwhisk-deploy-kube/issues/225
We've made several attempts to enable TravisCI testing for Kubernetes 1.10.x. Documenting some of the findings here.
The non-container based TravisCI environment is fairly antiquated (ubuntu 14.04). All minikube versions newer than v0.25.2 expect `systemctl` to be provided in the host environment. Systemctl is not available in ubuntu 14.04 (first became available in ubuntu 16.04). As a result, we cannot run any version of minikube later than 0.25.2 with the --vmdriver=none option that we need to avoid docker-in-docker problems. (see https://github.com/kubernetes/minikube/issues/2704 for discussion of systemctl).
Unfortunately, running kubernetes 1.10.x in minikube 0.25.2 does not work. Here's a snippet of the minikube log from the latest attempt showing that the kube-addon-manager pod is unable to start.
```
I0614 22:11:46.019930 16852 reconciler.go:207] operationExecutor.VerifyControllerAttachedVolume started for volume "addons" (UniqueName: "kubernetes.io/host-path/4a5d72e5f704e8849fc9e9c8e03c034c-addons") pod "kube-addon-manager-travis-job-0f598210-f60f-422a-8b0d-3dcf0f7c543e" (UID: "4a5d72e5f704e8849fc9e9c8e03c034c")
I0614 22:11:46.020008 16852 reconciler.go:207] operationExecutor.VerifyControllerAttachedVolume started for volume "kubeconfig" (UniqueName: "kubernetes.io/host-path/4a5d72e5f704e8849fc9e9c8e03c034c-kubeconfig") pod "kube-addon-manager-travis-job-0f598210-f60f-422a-8b0d-3dcf0f7c543e" (UID: "4a5d72e5f704e8849fc9e9c8e03c034c")
I0614 22:11:46.020075 16852 reconciler.go:154] Reconciler: start to sync state
E0614 22:11:46.227349 16852 metadata.go:142] while reading 'google-dockercfg' metadata: http status code: 404 while fetching url http://metadata.google.internal./computeMetadata/v1/instance/attributes/google-dockercfg
E0614 22:11:46.229388 16852 metadata.go:159] while reading 'google-dockercfg-url' metadata: http status code: 404 while fetching url http://metadata.google.internal./computeMetadata/v1/instance/attributes/google-dockercfg-url
I0614 22:11:48.270038 16852 controller.go:537] quota admission added evaluator for: {extensions deployments}
I0614 22:11:48.275711 16852 controller.go:537] quota admission added evaluator for: {extensions replicasets}
I0614 22:11:48.280086 16852 event.go:218] Event(v1.ObjectReference{Kind:"Deployment", Namespace:"kube-system", Name:"tiller-deploy", UID:"ee8393bc-701f-11e8-b867-42010a1401d8", APIVersion:"extensions", ResourceVersion:"169", FieldPath:""}): type: 'Normal' reason: 'ScalingReplicaSet' Scaled up replica set tiller-deploy-7f5f67578d to 1
I0614 22:11:48.305878 16852 event.go:218] Event(v1.ObjectReference{Kind:"ReplicaSet", Namespace:"kube-system", Name:"tiller-deploy-7f5f67578d", UID:"ee847196-701f-11e8-b867-42010a1401d8", APIVersion:"extensions", ResourceVersion:"170", FieldPath:""}): type: 'Normal' reason: 'SuccessfulCreate' Created pod: tiller-deploy-7f5f67578d-whn2t
W0614 22:11:48.323997 16852 factory.go:1304] Request for pod kube-system/tiller-deploy-7f5f67578d-whn2t already in flight, abandoning
E0614 22:11:49.799009 16852 kubelet_pods.go:409] hostname for pod:"kube-addon-manager-travis-job-0f598210-f60f-422a-8b0d-3dcf0f7c543e" was longer than 63. Truncated hostname to :"kube-addon-manager-travis-job-0f598210-f60f-422a-8b0d-3dcf0f7c5"
W0614 22:11:49.901899 16852 docker_container.go:213] Cannot create symbolic link because container log file doesn't exist!
E0614 22:11:49.902123 16852 remote_runtime.go:209] StartContainer "66ccc8d933f99408d5b63beeb48fb7e2e91c8daa760cece0b858a8c1d9a7806e" from runtime service failed: rpc error: code = Unknown desc = failed to start container "66ccc8d933f99408d5b63beeb48fb7e2e91c8daa760cece0b858a8c1d9a7806e": Error response from daemon: linux mounts: path /etc/kubernetes is mounted on / but it is not a shared or slave mount
E0614 22:11:49.902238 16852 kuberuntime_manager.go:733] container start failed: RunContainerError: failed to start container "66ccc8d933f99408d5b63beeb48fb7e2e91c8daa760cece0b858a8c1d9a7806e": Error response from daemon: linux mounts: path /etc/kubernetes is mounted on / but it is not a shared or slave mount
E0614 22:11:49.902311 16852 pod_workers.go:186] Error syncing pod 4a5d72e5f704e8849fc9e9c8e03c034c ("kube-addon-manager-travis-job-0f598210-f60f-422a-8b0d-3dcf0f7c543e_kube-system(4a5d72e5f704e8849fc9e9c8e03c034c)"), skipping: failed to "StartContainer" for "kube-addon-manager" with RunContainerError: "failed to start container \"66ccc8d933f99408d5b63beeb48fb7e2e91c8daa760cece0b858a8c1d9a7806e\": Error response from daemon: linux mounts: path /etc/kubernetes is mounted on / but it is not a shared or slave mount"
I0614 22:11:51.188296 16852 kuberuntime_manager.go:513] Container {Name:kube-addon-manager Image:gcr.io/google-containers/kube-addon-manager:v6.5 Command:[] Args:[] WorkingDir: Ports:[] EnvFrom:[] Env:[{Name:KUBECONFIG Value:/var/lib/localkube/kubeconfig ValueFrom:nil}] Resources:{Limits:map[] Requests:map[cpu:{i:{value:5 scale:-3} d:{Dec:<nil>} s:5m Format:DecimalSI} memory:{i:{value:52428800 scale:0} d:{Dec:<nil>} s:50Mi Format:BinarySI}]} VolumeMounts:[{Name:addons ReadOnly:true MountPath:/etc/kubernetes/ SubPath: MountPropagation:<nil>} {Name:kubeconfig ReadOnly:true MountPath:/var/lib/localkube/ SubPath: MountPropagation:<nil>}] VolumeDevices:[] LivenessProbe:nil ReadinessProbe:nil Lifecycle:nil TerminationMessagePath:/dev/termination-log TerminationMessagePolicy:File ImagePullPolicy:IfNotPresent SecurityContext:nil Stdin:false StdinOnce:false TTY:false} is dead, but RestartPolicy says that we should restart it.
I0614 22:11:51.188447 16852 kuberuntime_manager.go:757] checking backoff for container "kube-addon-manager" in pod "kube-addon-manager-travis-job-0f598210-f60f-422a-8b0d-3dcf0f7c543e_kube-system(4a5d72e5f704e8849fc9e9c8e03c034c)"
```
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