Playground with Kubernetes (k8s) in Docker Desktop and real GCP account

Basically, after installing docker, we go to Docker Desktop settings and enable kubernetes there

1. Download & install docker, enable kubernetes settings
2. Download & install gcloud and kubectl (for this scope, no gcloud needed, but we will keep it here) https://cloud.google.com/kubernetes-engine/docs/how-to/cluster-access-for-kubectl
3. Check what contexts available: kubectl config get-contexts
4. Tell k8s to use docker-desktop cluster: kubectl config use-context docker-desktop
5. Check current context: kubectl config current-context
6. Check actually where config parameters are stored: cat ~/.kube/config
7. Run kubetcl apply -f app.yml. You should see deployment and service are created.
8. Open localhost:4444, you should see the website is accessible
9. Check how the deployment is set up by some kubectl commands:

kubetcl get pods
kubetcl get services
kubectl get deployments

kubetcl describe pods
kubetcl describe services
kubectl describe deployments

10. Demo video: https://youtu.be/H9wOCqDeuug

Note that k8s/gcloud have concepts here that might look confused: cluster, namespace, context, node. Asking bard.google.com is what I normally do to understand each of them and the differences. Fairly quick.

Note that I choose the default region for my gcp account is asia-southeast1

1. Login gcloud: gcloud login. Note that here you will have to fill in a payment method
2. Create a project in Google Cloud console https://console.cloud.google.com/
3. Under Kubernetes Engine tab, create a new autopilot cluster (for quickstart with auto setup from gcp)
4. See list projects: gcloud projects list
5. Select a project to be active on: gcloud config set project hello-world-project-390209 (replace to your project nme)
6. See list clusters: gcloud container clusters list
7. Generate a link to kubeconfig for this cluster: gcloud container clusters get-credentials autopilot-cluster-1 --region=asia-southeast1
8. Check it: cat ~/.kube/config
9. Change current context of kubernetes to this new cluster: kubectl config set-context gke_hello-world-project-390209_asia-southeast1_autopilot-cluster-1
10. Run kubetcl apply -f app.yml. You should see deployment and service are created.
11. Open http:https://34.143.203.89, you should see the website is accessible. The IP here can be taken from the tab "Kubernetes Engine > Service & Ingress" in Google Cloud console
12. In the Google Cloud console, delete your cluster.
13. Demo video: https://youtu.be/A8En5SjZ17c

MIT. See more at LICENSE file.