Unable to connect to Google Container Engine

问题

I've updated gcloud to the latest version (159.0.0)

I created a Google Container Engine node, and then followed the instructions in the prompt.

gcloud container clusters get-credentials prod --zone us-west1-b --project myproject

Fetching cluster endpoint and auth data.
kubeconfig entry generated for prod

kubectl proxy
Unable to connect to the server: error executing access token command 
"/Users/me/Code/google-cloud-sdk/bin/gcloud ": exit status 

Any idea why is it not able to connect?

回答1:

You can try to run to see if the config was generated correctly:

kubectl config view 

I had a similar issue when trying to run kubectl commands on a new Kubernetes cluster just created on Google Cloud Platform.

The solution for my case was to activate Google Application Default Credentials.

You can find a link below on how to activate it.

Basically, you need to set an environmental variable to the path of the .json with the credentials from GCP GOOGLE_APPLICATION_CREDENTIALS -> c:\...\..\..Credentials.json exported from Google Cloud https://developers.google.com/identity/protocols/application-default-credentials

I found this solution on a kuberenetes github issue: https://github.com/kubernetes/kubernetes/issues/30617

PS: make sure you have also set the environmental variables for: %HOME% to %USERPROFILE% %KUBECONFIG% to %USERPROFILE%

回答2:

It looks like the default auth plugin for GKE might be buggy on windows. kubectl is trying to run gcloud to get a token to authenticate to your cluster. If you run kubectl config view you can see the command it tried to run, and run it yourself to see if/why it fails.

As Alexandru said, a workaround is to use Google Application Default Credentials. Actually, gcloud container has built in support for doing this, which you can toggle by setting a property:

gcloud config set container/use_application_default_credentials true

or set environment variable

%CLOUDSDK_CONTAINER_USE_APPLICATION_DEFAULT_CREDENTIALS% to true.

来源：https://stackoverflow.com/questions/44643444/unable-to-connect-to-google-container-engine