Kubernetes LAB 02: How to connect to an existing Cluster in GCP to run kubectl commands in minutes

How to connect (authenticate) to an existing Kubernetes Cluster in GCP (Google Cloud) so that you can run kubectl commands to administer the cluster.

Steps:
# 1. Create a Kubernetes cluster
# 2. Console: Search for Service Accounts
# 3. Create a Service Account and give it Kubernetes Engine Admin Permission
# 4. Crate JSON key, View
# 5. Copy to new file in home dir (remember the file name)
# 7. Set my project: gcloud config set project youtube-demo-1234567
# 8. Post-check: Am I on the right project: gcloud config list
# 9. List clusters: gcloud container clusters list
# 10. Post check: Who am I: gcloud config list account
# 11. Show list of accounts I have auth-ed with and make sure youtube is the current one: gcloud auth list | grep youtube
# 12. Authenticate/connect-with the GKE cluster: gcloud container clusters get-credentials $CLUSTER --region $REGION --project youtube-demo-1234567
e.g. gcloud container clusters get-credentials cluster-1 --region=us-central1-c --project=youtube-demo-1234567
Ignore the plugin warning
# 13. postcheck: kubectl config view | grep cluster-1
kubectl get nodes