docker-build.yml

name: Docker Image Push (on commit and base image update)

on:
  push:
    branches: [ "master" ]
  schedule:
    - cron: "15 4 */3 * *"

env:
  IMAGE_OWNER: kimbtechnologies
  IMAGE_NAME: telegrambot
  BASE_IMAGE: library/php:cli-alpine

jobs:
  build:
    runs-on: ubuntu-latest
    steps:
    
    # Init and check
    
    - name: Access to repository contents
      uses: actions/checkout@v4
    
    - name: Check for new baseimage 
      id: check
      uses: lucacome/docker-image-update-checker@v1
      with:
        base-image: "${{env.BASE_IMAGE}}"
        image: "${{env.IMAGE_OWNER}}/${{env.IMAGE_NAME}}:latest"
      if: github.event_name != 'push'
        
   # Build image
        
    - name: Build the Docker image
      run: docker build . --file "Dockerfile" --tag "$IMAGE_OWNER/$IMAGE_NAME:latest"
      if: ${{ (github.event_name == 'push') || (steps.check.outputs.needs-updating == 'true') }}
   
    # Push latest tag
   
    - name: Login to DockerHub
      uses: docker/login-action@v3
      with:
        username: ${{ secrets.DOCKER_USERNAME }}
        password: ${{ secrets.DOCKER_TOKEN }}
      if: ${{ (github.event_name == 'push') || (steps.check.outputs.needs-updating == 'true') }}
      
    - name: Push to DockerHub 
      run: docker push "$IMAGE_OWNER/$IMAGE_NAME:latest"
      if: ${{ (github.event_name == 'push') || (steps.check.outputs.needs-updating == 'true') }}
      
    # Version tags to push
    
    - name: Tag and push versions 
      if: ${{ (github.event_name == 'push') || (steps.check.outputs.needs-updating == 'true') }} 
      run: |
          cat VERSION | while read TAG; do
            if [[ $TAG =~ ^#.* ]] ; then 
              echo "Skipping $TAG";
            else 
              echo "Tagging image as $TAG and pushing";
              docker tag "$IMAGE_OWNER/$IMAGE_NAME:latest" "$IMAGE_OWNER/$IMAGE_NAME:$TAG"
              docker push "$IMAGE_OWNER/$IMAGE_NAME:$TAG"
            fi;
          done;