Merge pull request #1 from uhh-pd-ml/import-fix #8

	name: Docker build

	on:
	pull_request:
	branches:
	- '*'
	paths:
	- 'docker/**'
	push:
	branches:
	- 'main'
	tags:
	- '*'
	paths:
	- 'docker/**'
	workflow_dispatch:

	env:
	CONTAINER_REGISTRY: ${{ vars.DOCKERHUB_USERNAME }}
	IMAGE_NAME: ${{ vars.DOCKERHUB_REPO}}

	jobs:
	build_latest:
	runs-on: ubuntu-latest
	steps:

	- name: Checkout
	uses: actions/checkout@master

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

	- name: Build image
	run: docker build -f docker/Dockerfile --tag ${CONTAINER_REGISTRY}/${IMAGE_NAME}:latest docker

	# Login and push this image if this is on the main branch

	- name: Login to Dockerhub container registry
	if: github.event_name == 'push' && github.ref == 'refs/heads/main'
	run: docker login -u ${{ vars.DOCKERHUB_USERNAME }} -p ${{ secrets.DOCKERHUB_TOKEN }}

	- name: Push image
	if: github.event_name == 'push' && github.ref == 'refs/heads/main'
	run: docker push ${CONTAINER_REGISTRY}/${IMAGE_NAME}:latest

	build_release:
	# Build an extra image for tagged commits
	runs-on: ubuntu-latest
	if: startsWith(github.event.ref, 'refs/tags')
	steps:
	- name: Checkout
	uses: actions/checkout@master

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

	- name: Build image
	run: docker build -f docker/Dockerfile --tag ${CONTAINER_REGISTRY}/${IMAGE_NAME}:${{ github.ref_name }} docker

	- name: Login to Dockerhub container registry
	run: docker login -u ${{ vars.DOCKERHUB_USERNAME }} -p ${{ secrets.DOCKERHUB_TOKEN }}

	- name: Push image
	run: docker push ${CONTAINER_REGISTRY}/${IMAGE_NAME}:${{ github.ref_name }}

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