CI/CD

refactor: 혼잡도 구하는 메서드 주석 변경 & return 로직 불필요한 캐스팅 제거 #164

	name: CI/CD

	on:
	push:
	pull_request:
	types:
	- closed
	branches:
	- main

	jobs:
	backend-deploy:
	if: github.event.pull_request.merged == true
	runs-on: ubuntu-latest

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

	- name: Grant execute permission to gradlew
	run: chmod +x ./gradlew

	- name: Build with Gradle
	run: ./gradlew clean build

	- name: Build Docker image
	run: docker build -t ggamnunq/busan .

	- name: Login to Docker Hub
	uses: docker/login-action@v2
	with:
	username: ${{ secrets.DOCKERHUB_USERNAME }}
	password: ${{ secrets.DOCKERHUB_TOKEN }}

	- name: Push Docker image
	run: docker push ggamnunq/busan

	- name: Connect to EC2 & Deploy
	uses: appleboy/ssh-action@v0.1.6
	with:
	host: ${{ secrets.EC2_HOST }}
	username: ${{ secrets.EC2_USERNAME }}
	key: ${{ secrets.SSH_KEY }}
	port: ${{ secrets.WAS_SSH_PORT }}
	script: \|
	cd /home/ubuntu/app
	docker-compose down
	docker rm -f redis \|\| true
	docker rmi ggamnunq/busan \|\| true
	docker image prune -f
	docker pull ggamnunq/busan
	docker-compose up -d

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