docker-publish.yml

name: Publish Docker image to GHCR

on:
  push:
    branches: [main]

permissions:
  contents: read
  packages: write

jobs:
  publish:
    runs-on: ubuntu-latest

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

      - name: Log in to GitHub Container Registry
        uses: docker/login-action@v3
        with:
          registry: ghcr.io
          username: ${{ github.actor }}
          password: ${{ secrets.GITHUB_TOKEN }}

      - name: Build Docker image
        run: |
          IMAGE_NAME=ghcr.io/${{ github.repository }}:latest
          IMAGE_NAME_LC=$(echo $IMAGE_NAME | tr '[:upper:]' '[:lower:]')
          docker build -t $IMAGE_NAME_LC .

      - name: Push Docker image
        run: |
          IMAGE_NAME=ghcr.io/${{ github.repository }}:latest
          IMAGE_NAME_LC=$(echo $IMAGE_NAME | tr '[:upper:]' '[:lower:]')
          docker push $IMAGE_NAME_LC