build_and_deploy.yml

name: Build Image
on:
  workflow_call:
    secrets:
      IMAGE:
        required: true

      GKE_DEPLOYMENT_NAME:
        required: true
      GKE_NAMESPACE:
        required: true
      GKE_SA_KEY:
        required: true
      GKE_PROJECT_ID:
        required: true
      GKE_CLUSTER:
        required: true
      GKE_ZONE:
        required: true

jobs:
  build-image:
    runs-on: ubuntu-latest
    name: build-image
    steps:
      - name: Checkout
        uses: actions/checkout@v3

      - uses: google-github-actions/setup-gcloud@94337306dda8180d967a56932ceb4ddcf01edae7
        with:
          service_account_key: ${{ secrets.GKE_SA_KEY }}
          project_id: ${{ secrets.GKE_PROJECT_ID }}

      - uses: google-github-actions/get-gke-credentials@fb08709ba27618c31c09e014e1d8364b02e5042e
        with:
          cluster_name: ${{ secrets.GKE_CLUSTER }}
          location: ${{ secrets.GKE_ZONE }}
          credentials: ${{ secrets.GKE_SA_KEY }}

      - name: Set up Kubectl
        run: |-
          curl -sfLo kubectl "https://dl.k8s.io/release/$(curl -L -s https://dl.k8s.io/release/stable.txt)/bin/linux/amd64/kubectl"
          chmod u+x ./kubectl

      - run: |-
          gcloud --quiet auth configure-docker

      - name: Get ENV from configmap
        env:
          GKE_DEPLOYMENT_NAME: ${{ secrets.GKE_DEPLOYMENT_NAME }}
          GKE_NAMESPACE: ${{ secrets.GKE_NAMESPACE }}
        run: |-
          ./kubectl get configmap "config-${GKE_NAMESPACE}-${GKE_DEPLOYMENT_NAME}" -n $GKE_NAMESPACE -o go-template='{{range $k,$v := .data}}{{printf "%s=" $k}}{{if not $v}}{{$v}}{{else}}{{$v}}{{end}}{{"\n"}}{{end}}' > .env.temp

      - name: Build
        env:
          GKE_PROJECT_ID: ${{ secrets.GKE_PROJECT_ID }}
          IMAGE: ${{ secrets.IMAGE }}
        run: |-
          docker build \
            --tag "gcr.io/$GKE_PROJECT_ID/$IMAGE:$GITHUB_SHA" \
            --build-arg GITHUB_SHA="$GITHUB_SHA" \
            --build-arg GITHUB_REF="$GITHUB_REF" \
            .
          rm .env.temp

      - name: Publish
        env:
          GKE_PROJECT_ID: ${{ secrets.GKE_PROJECT_ID }}
          IMAGE: ${{ secrets.IMAGE }}
        run: |-
          docker push "gcr.io/$GKE_PROJECT_ID/$IMAGE:$GITHUB_SHA"

      - name: Clean docker build
        env:
          GKE_PROJECT_ID: ${{ secrets.GKE_PROJECT_ID }}
          IMAGE: ${{ secrets.IMAGE }}
        run: |-
          docker image rm "gcr.io/$GKE_PROJECT_ID/$IMAGE:$GITHUB_SHA" --force

      - name: Deploy
        env:
          IMAGE: ${{ secrets.IMAGE }}
          GKE_DEPLOYMENT_NAME: ${{ secrets.GKE_DEPLOYMENT_NAME }}
          GKE_PROJECT_ID: ${{ secrets.GKE_PROJECT_ID }}
          GKE_NAMESPACE: ${{ secrets.GKE_NAMESPACE }}

        run: |-
          ./kubectl set image deployment/$GKE_DEPLOYMENT_NAME $GKE_DEPLOYMENT_NAME="gcr.io/$GKE_PROJECT_ID/$IMAGE:$GITHUB_SHA" -n $GKE_NAMESPACE --record
          ./kubectl rollout status deployment/$GKE_DEPLOYMENT_NAME -n $GKE_NAMESPACE
          ./kubectl get deployment/$GKE_DEPLOYMENT_NAME -o wide -n $GKE_NAMESPACE