name: Push specific Docker tag

on:
  workflow_dispatch:
    inputs:
      version_tag:
        description: Tag to build and push

permissions:
  contents: read

jobs:
  deploy_docker:
    runs-on: ubuntu-latest
    steps:
    - uses: actions/checkout@v2
    - name: Build and push to Docker Hub
      env:
        DOCKER_USER: ${{ secrets.DOCKER_USER }}
        DOCKER_PASS: ${{ secrets.DOCKER_PASS }}
        VERSION_TAG: ${{ github.event.inputs.version_tag }}
      run: |-
        docker login -u $DOCKER_USER -p $DOCKER_PASS
        export REPO=datasetteproject/datasette
        docker build -f Dockerfile \
          -t $REPO:${VERSION_TAG} \
          --build-arg VERSION=${VERSION_TAG} .
        docker push $REPO:${VERSION_TAG}