Github Action file to build Dockerfile, Push to DigitalOcean Repository and update Image tag using Kustomize

go-action.yaml

name: Go

on:
  push:
    branches: [ main ]
    tags:
      - 'v*.*.*'

jobs:
  build:
    name: Build
    runs-on: ubuntu-latest
    
    steps:
    - name: Set up Go 1.x
      uses: actions/setup-go@v2
      with:
        go-version: ^1.14
      
    - name: Check out code
      uses: actions/checkout@v2
        
    - name: Extract Git Tag
      run: echo "GIT_TAG=${GITHUB_REF/refs\/tags\//}" >> $GITHUB_ENV
 
    - name: Login to Digitalocean
      uses: docker/login-action@v1
      with:
        registry: registry.digitalocean.com
        username: ${{ secrets.DIGITAL_OCEAN_TOKEN }}
        password: ${{ secrets.DIGITAL_OCEAN_TOKEN }}


    - name: push image to digitalocean
      run: |
        docker build -t registry.digitalocean.com/tanmaybhat/saymyname:${{ env.GIT_TAG }} .
        docker push registry.digitalocean.com/tanmaybhat/saymyname:${{ env.GIT_TAG }}

  deploy:
    name: Deploy
    runs-on: ubuntu-latest
    needs: build

    steps:
    - name: Check out code
      uses: actions/checkout@v2

    - name: Extract Git Tag
      run: echo "GIT_TAG=${GITHUB_REF/refs\/tags\//}" >> $GITHUB_ENV

    - name: update image tag in manifest
      uses: imranismail/setup-kustomize@v1
    - run: |
          cd kustomize/base
          kustomize edit set image registry.digitalocean.com/tanmaybhat/saymyname:${{ env.GIT_TAG }}
    
    - name: Commit files
      run: |
        git config --local user.email "action@github.com"
        git config --local user.name "GitHub Action"
        git commit -am "update image tag to ${{ env.GIT_TAG }}"

    - name: Push changes
      uses: ad-m/github-push-action@master
      with:
        github_token: ${{ secrets.GITHUB_TOKEN }}