Update Dockerfile #17

	name: Dotfiles
	# This workflow uses actions that are not certified by GitHub.
	# They are provided by a third-party and are governed by
	# separate terms of service, privacy policy, and support
	# documentation.

	on:
	push:
	branches: [ "master" ]
	pull_request:
	branches: [ "master" ]

	env:
	# Use docker.io for Docker Hub if empty
	REGISTRY: ghcr.io


	jobs:
	build:

	runs-on: ubuntu-latest
	permissions:
	contents: read
	packages: write
	# This is used to complete the identity challenge
	# with sigstore/fulcio when running outside of PRs.
	id-token: write

	steps:
	- name: Checkout repository
	uses: actions/checkout@v4

	- name: downcase REPO
	run: \|
	echo "REPO=${GITHUB_REPOSITORY@L}" >>${GITHUB_ENV}

	# Set up BuildKit Docker container builder to be able to build
	# multi-platform images and export cache
	# https://github.com/docker/setup-buildx-action
	- name: Set up Docker Buildx
	uses: docker/setup-buildx-action@v3 # v3.0.0

	# Login against a Docker registry except on PR
	# https://github.com/docker/login-action
	- name: Log into registry ${{ env.REGISTRY }}
	uses: docker/login-action@v3 # v3.0.0
	with:
	registry: ${{ env.REGISTRY }}
	username: ${{ github.actor }}
	password: ${{ secrets.GHCR_TOKEN }}

	# Build and push Docker image with Buildx (don't push on PR)
	# https://github.com/docker/build-push-action
	- name: Build and push Docker image
	id: build-and-push
	uses: docker/build-push-action@v6 # v5.0.0
	with:
	context: .
	push: true
	tags: ${{ env.REGISTRY }}/${{ env.REPO }}:latest

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