minikube kubectl --arguments and stdin for apply -f - not possible

[Doqnach]

The exact command to reproduce the issue:

1. $ minikube kubectl version --short
2. $ echo "foo:" | minikube kubectl apply -f -
3. $ echo "foo:" | minikube kubectl -- apply -f -
4. $ echo "foo:" | minikube kubectl apply -- -f -
5. $ minikube -- kubectl version --short

The full output of the command that failed:

1. Error: unknown flag: --short
2. Error: unknown shorthand flag: 'f' in -f
3. error: no objects passed to apply
4. error: no objects passed to apply
5. minikube version: v1.1.0

The expected output of the command that failed:

1. Just like minikube kubectl -- version --short:

   Client Version: v1.11.8
   Server Version: v1.11.8 
   

2. Just like echo "foo:" | kubectl apply -f -:
   error: error validating "STDIN": error validating data: [apiVersion not set, kind not set]; if you choose to ignore these errors, turn validation off with --validate=false
3. Just like echo "foo:" | kubectl apply -f -:
   error: error validating "STDIN": error validating data: [apiVersion not set, kind not set]; if you choose to ignore these errors, turn validation off with --validate=false
4. Just like echo "foo:" | kubectl apply -f -:
   error: error validating "STDIN": error validating data: [apiVersion not set, kind not set]; if you choose to ignore these errors, turn validation off with --validate=false
5. Just like minikube kubectl -- version --short:

   Client Version: v1.11.8
   Server Version: v1.11.8 
   

The output of the minikube logs command:

The operating system version:

• MacOS
• vmdriver=hyperkit
• kubectl version v1.11.8 on v1.11.8 k8s cluster, installed via minikube kubectl

[afbjorklund]

You will need to use a single -- to terminate the minikube arguments, before you can start to add the ones for the kubectl

minikube -- kubectl --version

---

EDIT: Managed to get this wrong, it should have been:

minikube kubectl -- --version

Then again --version is not a valid kubectl command, but: minikube kubectl -- version --client

$ minikube -- kubectl version --client
minikube version: v1.1.0
$ minikube kubectl -- version --client
Client Version: version.Info{Major:"1", Minor:"14", GitVersion:"v1.14.2", GitCommit:"66049e3b21efe110454d67df4fa62b08ea79a19b", GitTreeState:"clean", BuildDate:"2019-05-16T16:23:09Z", GoVersion:"go1.12.5", Compiler:"gc", Platform:"linux/amd64"}

[hpandeycodeit]

minikube -- kubectl --version is not giving me any results. Just the minikube list of commands.

[Doqnach]

$ minikube -- kubectl version --short
minikube version: v1.1.0
$ minikube kubectl -- version --short
Client Version: v1.11.8
Server Version: v1.11.8

The second command is what I expect to get but that notation doesn't work for apply -f -.

[GavinOsborn]

minikube kubectl version -- --short worked fine in this instance.
But it's not a great experience.

[Doqnach]

But it does not work for kubectl apply -f - so that doesn't help me much. There should be one notation that works for all of it obviously.

I think, that of my original post, version 3 would be the best option because it gives the most flexibility (e.g.: aliasing minikube --profile some-profile-name kubectl --). That one has the STDIN problem though, which might be a separate bug actually.

[afbjorklund]

I think, that of my original post, version 3 would be the best option because it gives the most flexibility (e.g.: aliasing minikube --profile some-profile-name kubectl --). That one has the STDIN problem though, which might be a separate bug actually.

Will look into this bug, looks like an oversight:

		c := exec.Command(path, args...)
		c.Stdout = os.Stdout
		c.Stderr = os.Stderr
		if err := c.Run(); err != nil {

i.e. there is no "os.Stdin" passed to the command.