Docker Hub Release #9

	# Copyright 2022 Google LLC
	#
	# Use of this source code is governed by a BSD-style
	# license that can be found in the LICENSE file or at
	# https://developers.google.com/open-source/licenses/bsd

	name: Docker Hub Release

	# Runs when a new release is published on GitHub.
	# Creates a corresponding Docker Hub release and publishes it.
	#
	# Can also be run manually for debugging purposes.
	on:
	release:
	types: [published]
	# For manual debugging:
	workflow_dispatch:
	inputs:
	ref:
	description: "The tag to release to Docker Hub."
	required: True

	jobs:
	publish_docker_hub:
	name: Publish to Docker Hub
	runs-on: ubuntu-latest
	steps:
	- name: Compute ref
	id: ref
	# We could be building from a workflow dispatch (manual run), or a
	# release event. Subsequent steps can refer to $TARGET_REF to
	# determine the correct ref in all cases.
	run: \|
	echo "TARGET_REF=${{ github.event.inputs.ref \|\| github.event.release.tag_name }}" >> $GITHUB_ENV

	- name: Checkout code
	uses: actions/checkout@v3
	with:
	ref: ${{ env.TARGET_REF }}
	submodules: recursive

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

	- name: Push to Docker Hub
	uses: docker/build-push-action@v2
	with:
	push: true
	tags: ${{ secrets.DOCKERHUB_PACKAGE_NAME }}:latest,${{ secrets.DOCKERHUB_PACKAGE_NAME }}:${{ env.TARGET_REF }}

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