Build

doc: request-workspace: prevent multiple ws for single proj #39

	name: Build

	on:
	- push

	permissions:
	contents: read
	id-token: write
	packages: write

	env:
	REGISTRY: ghcr.io
	IMAGE_NAME: ${{ github.repository }}

	jobs:
	build:
	name: Build
	runs-on: ubuntu-latest
	steps:
	- uses: actions/checkout@v4
	- uses: DeterminateSystems/nix-installer-action@v11
	- uses: DeterminateSystems/magic-nix-cache-action@v6

	- uses: docker/metadata-action@v5
	id: meta
	with:
	images: ${{ env.REGISTRY }}/${{ env.IMAGE_NAME }}

	- uses: docker/login-action@v3
	with:
	registry: ghcr.io
	username: ${{ github.actor }}
	password: ${{ secrets.GITHUB_TOKEN }}

	- name: Build image
	run: nix build -L .#image

	- uses: actions/upload-artifact@v4
	with:
	name: image
	path: result

	- name: Push image
	if: github.ref_type == 'tag'
	run: \|
	image="$(docker load -i result \| awk '{print $3}')"
	<<< "$TAGS" xargs -n1 docker tag "$image"
	<<< "$TAGS" xargs -n1 docker push
	env:
	TAGS: ${{ steps.meta.outputs.tags }}

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