Prepare Release v0.8.9 (#272) #4

	name: Release Build

	on:
	push:
	tags:
	- 'v[0-9]+.[0-9]+.[0-9]+'

	env:
	REGISTRY: ghcr.io
	JAVA_VERSION: '17'

	jobs:
	publishToMaven:
	runs-on: ubuntu-latest
	env:
	NEXUS_USERNAME: ${{ secrets.NEXUS_USERNAME }}
	NEXUS_TOKEN: ${{ secrets.NEXUS_TOKEN }}
	PGP_PRIVATE_KEY: ${{ secrets.PGP_PRIVATE_KEY }}
	PGP_KEY_PASSPHRASE: ${{ secrets.PGP_KEY_PASSPHRASE }}
	steps:
	- name: Checkout code
	uses: actions/checkout@v4
	- name: Set up JDK
	uses: actions/setup-java@v4
	with:
	java-version: ${{ env.JAVA_VERSION }}
	distribution: 'adopt'
	- name: Publish to Nexus Maven Repository
	run: ./gradlew publish

	publishDockerImage:
	needs: publishToMaven
	runs-on: ubuntu-latest
	permissions:
	contents: read
	packages: write
	steps:
	- uses: actions/checkout@v4
	- name: Login to GitHub Container Registry
	uses: docker/login-action@v3
	with:
	registry: ${{ env.REGISTRY }}
	username: ${{ github.actor }}
	password: ${{ secrets.GITHUB_TOKEN }}
	- name: Set up QEMU
	uses: docker/setup-qemu-action@v3
	- name: Set up Docker Buildx
	uses: docker/setup-buildx-action@v3
	- name: Determine Docker Tag
	run: echo "DOCKER_TAG=${GITHUB_REF_NAME#v}" >> $GITHUB_ENV
	- name: Publish java-spiffe-helper Docker Image
	uses: docker/build-push-action@v6
	with:
	context: .
	platforms: linux/amd64,linux/arm64
	push: true
	tags: ${{ env.REGISTRY }}/${{ github.repository }}-helper:${{ env.DOCKER_TAG }}
	cache-from: type=gha
	cache-to: type=gha,mode=max

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