publish.yml

name: Publish Docker image

on:
  push:
    branches:
      - 'main'

env:
  DOCKERHUB_REPO: your-pod

jobs:
  build_and_push:
    runs-on: ubuntu-latest
    steps:
      - name: Checkout code
        uses: actions/checkout@v2

      - name: Get short SHA
        id: sha
        run: echo "::set-output name=sha::$(git rev-parse --short ${{ github.sha }})"

      - name: Set up Docker Buildx
        uses: docker/setup-buildx-action@v1

      - name: Login to Docker Hub
        uses: docker/login-action@v1
        with:
          username: ${{ secrets.DOCKERHUB_USERNAME }}
          password: ${{ secrets.DOCKERHUB_TOKEN }}

      - name: Build and push
        uses: docker/build-push-action@v2
        with:
          context: .
          push: true
          tags: |
            ${{ secrets.DOCKERHUB_USERNAME }}/${{ env.DOCKERHUB_REPO }}:${{ steps.sha.outputs.sha }}
            ${{ secrets.DOCKERHUB_USERNAME }}/${{ env.DOCKERHUB_REPO }}:latest