Use commit-hash instead of version number for image tagging #6

	name: Docker Build/Publish Image
	on:
	push:
	branches: [ main ]
	jobs:
	build:
	runs-on: ubuntu-latest
	env:
	DOCKER_IMAGE: ryanconnell/concert-watch
	DOCKER_USERNAME: ${{ secrets.DOCKER_USERNAME }}
	DOCKER_PASSWORD: ${{ secrets.DOCKER_PASSWORD }}
	DOCKER_TARGET_PLATFORM: linux/arm/v7

	steps:
	- name: Checkout the code
	uses: actions/checkout@v4

	- name: Set up Docker Buildx
	uses: crazy-max/ghaction-docker-buildx@v1
	with:
	version: latest

	- name: Prepare
	if: success()
	id: prepare
	run: \|
	echo ::set-output name=docker_platform::${DOCKER_TARGET_PLATFORM}
	echo ::set-output name=docker_image::${DOCKER_IMAGE}
	echo ::set-output name=version::${GITHUB_RUN_NUMBER}

	- name: Docker Login
	uses: docker/login-action@3d58c274f17dffee475a5520cbe67f0a882c4dbb
	with:
	username: ${{ secrets.DOCKER_USERNAME }}
	password: ${{ secrets.DOCKER_PASSWORD }}

	- name: Run Buildx (push image)
	if: success()
	run: \|
	docker buildx build \
	--platform ${{ steps.prepare.outputs.docker_platform }} \
	--tag ${{ steps.prepare.outputs.docker_image }}:$(git rev-parse --short "$GITHUB_SHA") \
	--file ./Dockerfile \
	--output type=image,push=true .

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