go.yml

name: Go
on:
  push:
    branches:
      - digitalocean
  pull_request:
    types: [opened, synchronize, reopened]
jobs:
  # This workflow contains a single job called "build".
  build:
    # The type of runner that the job will run on.
    runs-on: ubuntu-latest
    
    # Steps represent a sequence of tasks that will be executed as part of the job
    steps:

    # Checks-out your repository under $GITHUB_WORKSPACE, so your job can access it.
    - name: Checkout master
      uses: actions/checkout@main

    - name: Setup-Golang
      uses: actions/setup-go@v4
      with:
        go-version: '1.23'
        check-latest: true
    - run: go version
    - name: Build-Golang-App
      run: GOOS=linux CGO_ENABLED=0 go build web.go
    - name: Display-Build-Golang-App
      run: ls -l web      

    # Install doctl.
    - name: Install doctl
      uses: digitalocean/action-doctl@v2
      with:
        token: ${{ secrets.DIGITALOCEAN_ACCESS_TOKEN }}
    
    # Build a Docker image of your application in your registry and tag the image with the $GITHUB_SHA.
    - name: Build container image
      run: docker build -t ${{ secrets.REGISTRY_NAME }}/golang-web:$(echo $GITHUB_SHA | head -c7) .

    - name: Log in to DigitalOcean Container Registry with short-lived credentials
      run: doctl registry login --expiry-seconds 1200

    - name: Push image to DigitalOcean Container Registry
      run: docker push ${{ secrets.REGISTRY_NAME }}/golang-web:$(echo $GITHUB_SHA | head -c7)

    # Deploy to DigitalOCcean Kubernetes.
    - name: Update deployment file
      run: TAG=$(echo $GITHUB_SHA | head -c7) && sed -i 's|<IMAGE>|${{ secrets.REGISTRY_NAME }}/golang-web:'${TAG}'|' $GITHUB_WORKSPACE/deployment.yml

    - name: Save DigitalOcean kubeconfig with short-lived credentials
      run: doctl kubernetes cluster kubeconfig save --expiry-seconds 600 ${{ secrets.CLUSTER_NAME }}
    
    # If you haven't already integrated with your registry and only want workloads in a particular namespace to be able to pull 
    # from your registry, uncomment the next two commands.
    #- name: Upload credentials of your registry to your DigitalOcean Kubernetes cluster
    #  run: doctl registry kubernetes-manifest | kubectl apply -f -
      
    #- name: Reference the secret you just uploaded as an imagePullSecrets
    #  run: "kubectl patch serviceaccount default -p '{\"imagePullSecrets\": [{\"name\": \"registry-<your-registry-name>`\"}]}'"

    - name: Deploy to DigitalOcean Kubernetes
      run: kubectl apply -f $GITHUB_WORKSPACE/deployment.yml

    - name: Verify deployment
      run: kubectl rollout status deployment/golang-web -n backend