GCE-container engine commands

gcloud-kubectl-commands.txt

# Init project settings
$ gcloud config set project PROJECT_ID
$ gcloud config set compute/zone us-east1-b
$ export PROJECT_ID=your-project-id-here

# Build docker image and push it to gcr.io
$ docker build -t gcr.io/${PROJECT_ID}/<project-name> .

Then push this image to the Google Container Registry:
$ gcloud docker push gcr.io/${PROJECT_ID}/<project-name>

# Create container clusters
$ gcloud container clusters create <project-name> \
    --num-nodes 1 \
    --machine-type g1-small

# List cloud instances
$ gcloud compute instances list  

# Create pods
$ kubectl run <project-name> --image=gcr.io/${PROJECT_ID}/<project-name> --port=80

# Create replication controllers
$ kubectl expose rc <project-name> --type="LoadBalancer"

# List the services (Use external IP to access the application)
$ kubectl get services <project-name>

# Scale the container instances
$ kubectl scale rc <project-name> --replicas=3

## Cleanup ##
# First, delete the Service, which also deletes your external load balancer:

$ kubectl delete services <project-name>

# Delete the running pods with:
$ kubectl delete rc <project-name>

# Delete your cluster:
$ gcloud container clusters delete <project-name>

// Update the pods of frontend, keeping the replication controller name
$ kubectl rolling-update frontend --image=image:v2

# Resizing the container cluster
$ gcloud container clusters describe CLUSTER_NAME --format yaml | grep -A 1 instanceGroupUrls
$ gcloud compute instance-groups managed resize gke-example-b937f2ba-group --zone us-central1-f --size 4