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use keys from parameters instead of loop and remove alias from filter… #169

	name: Docker Image CI

	on:
	push:
	branches: ["**"]

	jobs:
	build:
	runs-on: ubuntu-latest

	steps:
	- uses: actions/checkout@v4
	- name: Set up Docker Buildx
	uses: docker/setup-buildx-action@v3
	- name: Login to GitHub Container Registry
	uses: docker/login-action@v3
	with:
	registry: ghcr.io
	username: ${{ github.actor }}
	password: ${{ secrets.GITHUB_TOKEN }}
	- name: Extract image tags
	id: meta
	uses: docker/metadata-action@v5
	with:
	images: ghcr.io/diamondlightsource/dlstbx
	tags: \|
	type=ref,event=branch
	type=sha,format=short,prefix=
	type=raw,value=latest,enable={{is_default_branch}}
	- name: Build and push Docker image
	id: push
	uses: docker/build-push-action@v5
	with:
	context: .
	push: true
	platforms: linux/amd64
	tags: ${{ steps.meta.outputs.tags }}
	labels: ${{ steps.meta.outputs.labels }}