publish.yml

name: Publish Docker Image

on:
  workflow_dispatch:
  push:
    branches:
      - "main"

jobs:
  build:
    runs-on: ubuntu-latest
    steps:
      - name: Checkout
        uses: actions/checkout@v3

      - name: Login to Docker Hub
        uses: docker/login-action@v2
        with:
          username: ${{ secrets.DOCKERHUB_USERNAME }}
          password: ${{ secrets.DOCKERHUB_TOKEN }}

      - name: Set up Docker Buildx
        uses: docker/setup-buildx-action@v2

      - name: Extract repository name
        run: |
          repo_name="${GITHUB_REPOSITORY#*/}"  
          repo_name_lowercase=$(echo "$repo_name" | tr '[:upper:]' '[:lower:]')  # convert to lowercase
          echo "Repository name: $repo_name_lowercase"
          echo "REPO_NAME=$repo_name_lowercase" >> $GITHUB_ENV 

      - name: Build and push
        uses: docker/build-push-action@v4
        with:
          context: .
          file: ./Dockerfile
          push: true
          tags: ${{ secrets.DOCKERHUB_USERNAME }}/${{ env.REPO_NAME }}:latest