Exercise 3.02: Introduction to Google Kubernetes Engine - Ingress

Prompt: Connect with GKE and use a ingress service for your log output and pong apps

Get your google cloud set up well.
Docker
- Create a dockerhub account.
- Create a public docker repository.
- Configure docker in cli, i.e.,docker login --username

Update pong app so that it has root path. When an app is deployed and attached to ingress, the GKE checks for health by hitting the root path.
Update the docker image.
Push the updated docker images to a public dockerhub repo so that you can pull it easily.
Update logoutput-service.yaml and pong-service.yaml services from LoadBalancer to NodePort.
Add ingress to manifests. (Hint: You can copy from ex-2-07. You can also remove extra path, /count).
See the ingress
- kubectl get ing -n logtest
Sometimes deleting the deployment in GKE and applying manifests again worked. If the ingress does not have any IP address, this method worked well.

cd to this directory
Run gcloud container clusters create suraj-test-gke --disk-type "pd-balanced" --disk-size "20" --num-nodes "2" --zone=us-west1-b --cluster-version=1.29
- wait for the cluster to come alive
Set the kubeconfig to point in the right direction. Run gcloud container clusters get-credentials suraj-test-gke --zone=us-west1-b
Build docker images that will match the name of images in deployment yaml files. Now push the images to dockerhub public repo.
- See makefile for more.
Run deploy by using below
- kubectl create namespace logtest
- kubectl apply -f ./manifests/
Wait about ~8 to minutes for all to come alive.
Get ingress: kubectl get ing -n logtest
Pick the ADDRESS with port and run: http://{{ INGRESS-IP }}:3001/pingpong, e.g., http://35.197.62.147:3001/pingpong. This should start the counter. Now run: http://{{ EXTERNAL-IP }}:3001/now. This should show you the time and count.