Use a multiplatform postgis docker image for the sample docker compos… #147

	# Builds and pushes docker images on main and tags
	name: Build and Push Docker image
	on:
	push:
	branches:
	- main
	tags:
	- '*'

	jobs:
	build:
	if: github.repository == 'geoserver/geoserver-acl'
	name: Build and Push
	runs-on: ubuntu-latest
	timeout-minutes: 60
	steps:
	- name: Checkout
	uses: actions/checkout@v4
	- name: Setup Java
	uses: actions/setup-java@v2
	with:
	distribution: 'temurin'
	java-version: '17'
	cache: 'maven'

	- name: Login to Docker Hub
	uses: docker/login-action@v3
	with:
	username: ${{ secrets.DOCKER_HUB_USERNAME }}
	password: ${{ secrets.DOCKER_HUB_ACCESS_TOKEN }}

	# Add support for more platforms with QEMU
	# https://github.com/docker/setup-qemu-action
	- name: Set up QEMU
	uses: docker/setup-qemu-action@v3

	- name: Set up Docker Buildx
	uses: docker/setup-buildx-action@v3
	# https://github.com/docker/setup-buildx-action
	with:
	platforms: linux/amd64,linux/arm64
	# Sets up docker build command as an alias to docker buildx
	install: true

	- name: Package
	run: ./mvnw clean package -DskipTests -U -ntp -pl :gs-acl-service -am

	- name: Set version tag
	run: echo "TAG=$(./mvnw help:evaluate -q -DforceStdout -Dexpression=project.version)" >> $GITHUB_ENV

	- name: Build and push
	uses: docker/build-push-action@v6
	with:
	platforms: linux/amd64,linux/arm64
	push: true
	context: ./src/artifacts/api
	tags: geoservercloud/geoserver-acl:${{ env.TAG }}

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