Issue with k8s.io/docs/concepts/workloads/controllers/deployment/

[AlainODea]

This is a...

• Feature Request
• Bug Report

Problem:

nginx-deployment.yaml used in example yields error message error validating data: unknown object type when used with minikube version: v0.22.0 on macOS Sierra (10.12.6). It's possible that this is a minikube-specific issue. If so, please close this immediately noting that for future travellers :)

kubectl create -f https://raw.githubusercontent.com/kubernetes/kubernetes.github.io/master/docs/concepts/workloads/controllers/nginx-deployment.yaml
error: error validating "https://raw.githubusercontent.com/kubernetes/kubernetes.github.io/master/docs/concepts/workloads/controllers/nginx-deployment.yaml": error validating data: unknown object type schema.GroupVersionKind{Group:"apps", Version:"v1beta2", Kind:"Deployment"}; if you choose to ignore these errors, turn validation off with --validate=false

Proposed Solution:

None that I can find.

I tried the workaround mentioned in the error (--validate=false) and repeated by @hanks in kubernetes/kubernetes #53309 and got a different error: no kind "Deployment" is registered for version "apps/v1beta2.

Page to Update:
http://kubernetes.io/docs/concepts/workloads/controllers/deployment/

Kubernetes Version

$ kubectl version Client Version: version.Info{Major:"1", Minor:"8", GitVersion:"v1.8.0", GitCommit:"0b9efaeb34a2fc51ff8e4d34ad9bc6375459c4a4", GitTreeState:"clean", BuildDate:"2017-10-05T00:40:04Z", GoVersion:"go1.9.1", Compiler:"gc", Platform:"darwin/amd64"} Server Version: version.Info{Major:"1", Minor:"7", GitVersion:"v1.7.5", GitCommit:"17d7182a7ccbb167074be7a87f0a68bd00d58d97", GitTreeState:"clean", BuildDate:"2017-09-07T18:20:02Z", GoVersion:"go1.8.3", Compiler:"gc", Platform:"linux/amd64"}

Additional Information

I'm deliberately not using code blocks because the lines are long and horizontal scrolling is not fun.

Here's a transcript of my attempt to deploy nginx following the guide with minikube as the server:

$ kubectl create -f https://raw.githubusercontent.com/kubernetes/kubernetes.github.io/master/docs/concepts/workloads/controllers/nginx-deployment.yaml
error: error validating "https://raw.githubusercontent.com/kubernetes/kubernetes.github.io/master/docs/concepts/workloads/controllers/nginx-deployment.yaml": error validating data: unknown object type schema.GroupVersionKind{Group:"apps", Version:"v1beta2", Kind:"Deployment"}; if you choose to ignore these errors, turn validation off with --validate=false

$ kubectl create -f https://raw.githubusercontent.com/kubernetes/kubernetes.github.io/master/docs/concepts/workloads/controllers/nginx-deployment.yaml --validate=false
Error from server (BadRequest): error when creating "https://raw.githubusercontent.com/kubernetes/kubernetes.github.io/master/docs/concepts/workloads/controllers/nginx-deployment.yaml": Deployment in version "v1beta2" cannot be handled as a Deployment: no kind "Deployment" is registered for version "apps/v1beta2"

Caveat

This could easily be minikube-specific. Please close and note that if it is.

[AlainODea]

I did some further research. This is a known issue between kubectl 1.8 and minikube 0.22.0 (and possibly later versions) and is minikube-specific:
Kubectl 1.8 does not work with minikube
Kubectl 1.8 broken for minikube - OpenAPI swagger file doesn't include x-kubernetes-group-version-kind

The fix is in progress. The documentation is fine. I'm closing this and investigating an option for installing an earlier kubectl as a workaround.

[JCzz]

I just got the same issue running Kubernetes on Google following this example: https://kubernetes.io/docs/tasks/run-application/run-single-instance-stateful-application/

kubectl create -f mysql-deployment.yaml

service "mysql" created
persistentvolumeclaim "mysql-pv-claim" created
error: error validating "mysql-deployment.yaml": error validating data: unknown object type schema.GroupVersionKind{Group:"apps", Version:"v1beta2", Kind:"Deployment"}; if you choose to ignore these errors, turn validation off with --validate=false

[tommysvensson0]

@JCzz Have you gotten through that? I'm having the exact same issue with the exact same application and can't figure out why.

[JCzz]

Hi tommysvensson0
Nope, that one is still not clear to me. But I have a Scylla(Cassandra like db) database running with PersistentVolume.

[tommysvensson0]

@JCzz I figured out that I had an older version of kubernetes api on my server (default in google cloud) and got it working.
changed from this:
apiVersion: apps/v1beta2 # for versions before 1.8.0 use apps/v1beta1
to this:
apiVersion: apps/v1beta1 # for versions before 1.8.0 use apps/v1beta1