gke-deploy-react-webapp.yml

# This workflow will build a docker container, publish it to Google Container Registry, and deploy it to GKE.
#
# To configure this workflow:
#
# 1. Ensure that your repository contains the necessary configuration for your Google Kubernetes Engine cluster, including deployment.yml, kustomization.yml, service.yml, etc.
#
# 2. Set up secrets in your workspace: GKE_PROJECT with the name of the project, GKE_EMAIL with the service account email, GKE_KEY with the service account key.
#
# 3. Change the values for the GKE_ZONE, GKE_CLUSTER and IMAGE environment variables (below).

name: Build React Web App(Legacy) and Deploy to GKE

on:
  push:
    branches:
    - master

# Environment variables available to all jobs and steps in this workflow
env:
  GKE_PROJECT: ${{ secrets.GKE_PROJECT }}
  GKE_EMAIL: ${{ secrets.GKE_EMAIL }}
  GITHUB_SHA: ${{ github.sha }}
  GKE_ZONE: europe-west1-b
  GKE_CLUSTER: your-first-cluster-1
  IMAGE: react-webapp
  REACT_WEBAPP_PORT: 3003

jobs:

  setup-build-publish-deploy:
    if: contains(toJson(github), '[deploy react-webapp]')
    name: Setup, Build, Publish, and Deploy
    runs-on: ubuntu-latest
    steps:

    - name: Checkout
      uses: actions/checkout@master
#    - run: |
#            git log -1 --pretty='%B' > git_commit
#            cat git_commit
#            echo "::set-env name=GIT_COMMIT_MESSAGE::$eval(git log -1 --pretty='%B')"
#            echo "::set-env name=GIT_COMMIT_MESSAGE_TEST::TEST"

    # Setup gcloud CLI
    - uses: GoogleCloudPlatform/github-actions/setup-gcloud@master
      with:
        version: '270.0.0'
        service_account_email: ${{ secrets.GKE_EMAIL }}
        service_account_key: ${{ secrets.GKE_KEY }}

    # Configure docker to use the gcloud command-line tool as a credential helper
    - run: |
        # Set up docker to authenticate
        # via gcloud command-line tool.
        gcloud auth configure-docker
      
    # Build the Docker image
    - name: Build
      run: |        
        docker build -t eu.gcr.io/"$GKE_PROJECT"/"$IMAGE":"$GITHUB_SHA" \
          --build-arg GITHUB_SHA="$GITHUB_SHA" \
          --build-arg GITHUB_REF="$GITHUB_REF" \
          --build-arg PORT="$REACT_WEBAPP_PORT" ./react-webapp

    # Push the Docker image to Google Container Registry
    - name: Publish
      run: |
        docker push eu.gcr.io/$GKE_PROJECT/$IMAGE:$GITHUB_SHA
        
    # Set up kustomize
#    - name: Set up Kustomize
#      run: |
#        curl -o kustomize --location https://github.com/kubernetes-sigs/kustomize/releases/download/v3.1.0/kustomize_3.1.0_linux_amd64
#        chmod u+x ./kustomize
      # Set up docker image
    - name: Set up docker image
      run: |
        gcloud container clusters get-credentials $GKE_CLUSTER --zone $GKE_ZONE --project $GKE_PROJECT
        gcloud components install beta --quiet
        yes | gcloud beta container images add-tag eu.gcr.io/$GKE_PROJECT/$IMAGE:$GITHUB_SHA eu.gcr.io/$GKE_PROJECT/$IMAGE:latest

    # Deploy the Docker image to the GKE cluster
    - name: Deploy
      run: |
        kubectl config view
        kubectl config current-context
        kubectl patch deployment $IMAGE -p "{\"spec\":{\"template\":{\"metadata\":{\"annotations\":{\"date\":\"`date +'%s'`\"}}}}}" || kubectl apply -f ./.github/workflows/kubernetes/deployment-react-webapp.yml