fix: use latest by default #2

	name: Build
	on:
	push:
	branches:
	- main

	jobs:
	build-and-push-image:
	name: Build and Push Docker images
	runs-on: ubuntu-latest
	permissions:
	contents: read
	packages: write

	steps:
	- name: Checkout
	uses: actions/checkout@v3

	- uses: dorny/paths-filter@v3
	id: changes
	with:
	filters: \|
	dockerfile:
	- 'Dockerfile'

	- if: steps.changes.outputs.dockerfile == 'true'
	name: Set up QEMU
	uses: docker/setup-qemu-action@v2

	- if: steps.changes.outputs.dockerfile == 'true'
	name: Set up Docker Buildx
	uses: docker/setup-buildx-action@v2

	- if: steps.changes.outputs.dockerfile == 'true'
	name: Login to GitHub Container Registry
	uses: docker/login-action@v2
	with:
	registry: ghcr.io
	username: ${{ github.repository_owner }}
	password: ${{ secrets.GITHUB_TOKEN }}

	# GHCR requires lowercase.
	- if: steps.changes.outputs.dockerfile == 'true'
	id: repo-lower
	uses: ASzc/change-string-case-action@v5
	with:
	string: ${{ github.repository }}

	- if: steps.changes.outputs.dockerfile == 'true'
	uses: benjlevesque/short-sha@v3.0
	id: short-sha
	with:
	length: 7

	- if: steps.changes.outputs.dockerfile == 'true'
	name: Build and push
	uses: docker/build-push-action@v4
	with:
	push: true
	platforms: linux/amd64,linux/arm64
	tags: ghcr.io/${{ steps.repo-lower.outputs.lowercase }}:${{ steps.short-sha.outputs.sha }}, ghcr.io/${{ steps.repo-lower.outputs.lowercase }}:latest

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