name: Publish Docker image

on:
  push:
    branches:
      - main
  pull_request:
    branches:
      - main

jobs:
  push_to_registry:
    name: Push Docker image to Docker Hub
    runs-on: ubuntu-latest
    steps:
      - name: Check out the repo
        uses: actions/checkout@v2

      - name: Log in to Docker Hub
        uses: docker/login-action@v1.10.0
        with:
          username: ${{ secrets.DOCKER_USERNAME }}
          password: ${{ secrets.DOCKER_PASSWORD }}

      - name: Extract metadata (tags, labels) for Docker
        id: meta
        uses: docker/metadata-action@v3.5.0
        with:
          images: nning2/imgshr

      - name: Build and push Docker image
        uses: docker/build-push-action@v2.7.0
        with:
          context: .
          push: true
          tags: ${{ steps.meta.outputs.tags }}
          labels: ${{ steps.meta.outputs.labels }}

Add push to Docker Hub
Add push to Docker Hub
