Set the prefix for the github action that publishes to docker. #4

	name: release-docker

	on:
	workflow_dispatch:
	push:
	tags:
	- 'v*'

	concurrency:
	group: ${{ github.workflow }}-${{ github.event.pull_request.number \|\| github.ref }}
	cancel-in-progress: true

	jobs:

	docker:

	runs-on: ubuntu-latest

	steps:
	- name: Set up QEMU
	uses: docker/setup-qemu-action@v3

	- name: Set up Docker Buildx
	uses: docker/setup-buildx-action@v3

	- name: Login to DockerHub
	if: github.event_name != 'pull_request'
	uses: docker/login-action@v3
	with:
	username: ${{ secrets.DOCKERHUB_USERNAME }}
	password: ${{ secrets.DOCKERHUB_TOKEN }}

	- name: Check out the repo
	uses: actions/checkout@v4

	- name: Extract metadata (tags, labels) for Docker Hub
	id: meta_dockerhub
	uses: docker/metadata-action@v5
	with:
	images: "openml/frontend"
	tags: \|
	type=semver,pattern={{raw}},prefix=dev_

	- name: Build and push
	id: docker_build
	uses: docker/build-push-action@v6
	with:
	context: .
	file: docker/Dockerfile
	tags: ${{ steps.meta_dockerhub.outputs.tags }}
	labels: ${{ steps.meta_dockerhub.outputs.labels }}
	platforms: linux/amd64,linux/arm64
	push: ${{ github.event_name == 'push' }}

	- name: Update repo description
	if: ${{ startsWith(github.ref, 'refs/tags/v') }}
	uses: peter-evans/dockerhub-description@v4
	with:
	username: ${{ secrets.DOCKERHUB_USERNAME }}
	password: ${{ secrets.DOCKERHUB_TOKEN }}
	repository: openml/frontend
	short-description: "Frontend for OpenML."
	readme-filepath: ./docker/README.md

	- name: Image digest
	run: echo ${{ steps.docker_build.outputs.digest }}

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