ghcr-publish.yml

name: Build and Publish Docker Image

on:
  push:
    tags:
      - '*'

jobs:
  build-and-push:
    runs-on: ubuntu-latest

    permissions:
      contents: read
      packages: write

    steps:
      - name: Checkout repository
        uses: actions/checkout@v3

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

      - name: Get short commit hash
        id: vars
        run: echo "commit_hash=$(git rev-parse --short HEAD)" >> $GITHUB_OUTPUT

      - name: Prepare Docker image name and tag
        run: |
          REPO_LC=$(echo "${GITHUB_REPOSITORY}" | tr '[:upper:]' '[:lower:]')
          TAG_NAME=$(echo "${GITHUB_REF_NAME}" | tr '[:upper:]' '[:lower:]')
          BUILD_TAG="${TAG_NAME}_${{ steps.vars.outputs.commit_hash }}_${GITHUB_RUN_NUMBER}"

          echo "IMAGE_NAME=ghcr.io/${REPO_LC}" >> $GITHUB_ENV
          echo "IMAGE_TAG=${BUILD_TAG}" >> $GITHUB_ENV

      - name: Build Docker image
        run: docker build -t $IMAGE_NAME:$IMAGE_TAG .

      - name: Push Docker image
        run: docker push $IMAGE_NAME:$IMAGE_TAG