auto-build-on-base-image-change.yml

name: Regular base image update check
#   SOURCE: https://www.flypenguin.de/2021/07/30/auto-rebuild-docker-images-if-base-image-changes-using-github-actions/

on:
  push:
    branches: [ main ]
  schedule:
    - cron: "13 23 * * 5"

jobs:

  build:
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v4

      - name: Docker Image Update Checker
        id: baseupdatecheck
        uses: lucacome/docker-image-update-checker@v1.2.1
        with:
          base-image: library/caddy:alpine
          image: cryorig/caddyflare

      - name: Login to DockerHub
        uses: docker/login-action@v3
        with:
          username: ${{ secrets.DOCKERHUB_USERNAME }}
          password: ${{ secrets.DOCKERHUB_TOKEN }}
        if: steps.baseupdatecheck.outputs.needs-updating == 'true'

      - name: Build and push Docker images
        uses: docker/build-push-action@v6
        with:
          context: "${{ github.workspace }}"
          push: true
          tags: cryorig/caddyflare:latest
          outputs: type=image,compression=gzip
        if: steps.baseupdatecheck.outputs.needs-updating == 'true'

      - name: Docker Hub Description
        uses: peter-evans/dockerhub-description@v4
        with:
          short-description: ${{ github.event.repository.description }}
          username: ${{ secrets.DOCKERHUB_USERNAME }}
          password: ${{ secrets.DOCKERHUB_TOKEN }}
          repository: cryorig/caddyflare