docker-publish.yml

name: Docker

on:
  push:
    branches:
    - 'main'
  workflow_dispatch:
  schedule:
    - cron: "0 0 1 * *"
  
env:
  REGISTRY: ghcr.io
  IMAGE_NAME: ${{ github.repository }}

jobs:
  workflow-keepalive:
    if: github.event_name == 'schedule'
    runs-on: ubuntu-latest
    permissions:
      actions: write
    steps:
      - uses: liskin/gh-workflow-keepalive@v1
        with:
          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
  build:
    runs-on: ubuntu-latest
    permissions:
      contents: read
      packages: write

    steps:
      - name: Checkout repository
        uses: actions/checkout@v4

      - name: Log into registry ${{ env.REGISTRY }}
        uses: docker/login-action@v3
        with:
          registry: ${{ env.REGISTRY }}
          username: ${{ github.repository_owner }}
          password: ${{ secrets.GITHUB_TOKEN }}

      - name: Build and push Docker image
        uses: docker/build-push-action@v6
        with:
          context: .
          push: true
          tags: ${{ env.REGISTRY }}/${{ github.repository }}:latest

      - name: Delete Untagged images
        uses: actions/delete-package-versions@v5
        with:
          package-name: ${{ github.event.repository.name }}
          package-type: container