A container with gcloud sdk and kubectl

####Ultities for doing CI/CD in a containerized environment

Inspired from Scott Smerchek's Pushing to Google Container Registry from CircleCI

---

You need to set up your gcloud service account as container dev first.

Then set up credentials as environment variable in your CI/CD configuration:

Name	Value
GCLOUD_EMAIL	{string_of_characters}@developer.gserviceaccount.com
GCLOUD_KEY	base64-encoded version of project_name-xxxxx.json
On OSX and Linux, you can get the base64 encoded version like this:

cat project_name-xxxxx.json | base64

And configure environment variables accordingly in your CI/CD yml file:

environment:
  CLOUDSDK_CORE_DISABLE_PROMPTS: 1
  CLOUDSDK_COMPUTE_ZONE: $GCLOUD_ZONE
  CLOUDSDK_CORE_PROJECT: $GCLOUD_PROJECTID
  GOOGLE_APPLICATION_CREDENTIALS: gcloud.json

Then you can authenticate with service account and manage k8s with kubectl:

script:
  - echo $GCLOUD_KEY | base64 -d > $GOOGLE_APPLICATION_CREDENTIALS
  - gcloud auth activate-service-account --key-file $GOOGLE_APPLICATION_CREDENTIALS
  - gcloud container clusters get-credentials XXXXX
  - kubectl get pods