docker.yml

name: Build Docker image

on:
  push:
    branches:
      - "main"
    paths:
      - "dockerfile"
      - ".github/workflows/docker.yml"
      - "monitor.py"

env:
  REGISTRY: ghcr.io

jobs:
  docker:
    runs-on: ubuntu-latest
    permissions:
      contents: read
      packages: write
      id-token: write

    defaults:
      run:
        working-directory: "."

    steps:
      - name: Checkout GitHub Action
        uses: actions/checkout@v3

      - name: Login to GitHub Container Registry (GHCR)
        uses: docker/login-action@v2
        with:
          registry: ${{ env.REGISTRY }}
          username: ${{ github.actor }}
          password: ${{ secrets.GITHUB_TOKEN }}

      - name: Extract Docker metadata
        id: metadata
        uses: docker/metadata-action@v4
        with:
          images: ${{ env.REGISTRY }}/${{ github.repository }}
          tags: |
            type=semver,pattern={{version}}
            type=semver,pattern={{major}}.{{minor}} 
            type=semver,pattern={{major}}
            type=ref,event=branch
            type=sha
            latest

      - name: Build and push to GHCR
        uses: docker/build-push-action@v4
        with:
          context: .
          push: true
          tags: ${{ steps.metadata.outputs.tags }}
          labels: ${{ steps.metadata.outputs.labels }}
          provenance: false