Deploy to GCP #3

	name: Deploy to GCP

	on:
	workflow_run:
	workflows: ["ci"] # CI 워크플로우 이름
	types:
	- completed
	branches:
	- main
	workflow_dispatch:

	jobs:
	deploy:
	if: >
	${{ github.event.workflow_run.event == 'pull_request' &&
	github.event.workflow_run.conclusion == 'success' }}
	runs-on: ubuntu-latest
	permissions:
	id-token: write
	contents: read
	steps:
	- uses: actions/checkout@v4

	# CI에서 생성한 JAR 파일 다운로드
	- name: Download JAR Artifact
	uses: actions/download-artifact@v4
	with:
	name: application-jar
	path: build/libs/

	- name: Login to DockerHub
	uses: docker/login-action@v3
	with:
	username: ${{ secrets.DOCKER_USERNAME }}
	password: ${{ secrets.DOCKER_PASSWORD }}

	- name: Build & Push Docker Image
	uses: docker/build-push-action@v6
	with:
	push: true
	context: .
	tags: ${{ secrets.DOCKER_USERNAME }}/${{ secrets.DOCKER_IMAGE_NAME }}:latest

	- name: Authenticate to GCP
	uses: google-github-actions/auth@v2
	with:
	workload_identity_provider: ${{ secrets.WORKLOAD_IDENTITY_PROVIDER }}
	service_account: ${{ secrets.SERVICE_ACCOUNT_EMAIL }}

	- name: Deploy to GCP Compute Engine
	uses: google-github-actions/ssh-compute@v1
	with:
	instance_name: ${{ secrets.GCP_INSTANCE_NAME }}
	zone: ${{ secrets.GCP_INSTANCE_ZONE }}
	ssh_private_key: ${{ secrets.GCP_SSH_PRIVATE_KEY }}
	command: \|
	cd /app/${{ github.repository }}
	sudo curl -o docker-compose.yml https://raw.githubusercontent.com/${{ github.repository }}/main/docker-compose.yml
	sudo docker-compose down
	sudo docker-compose up -d ${{ secrets.DOCKER_IMAGE_NAME }}
	sudo docker image prune -a -f

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