[FEAT] CI/CD 파일 수정 #4

	name: Deploy Backend to EC2

	on:
	push:
	branches:
	- main
	workflow_dispatch:

	jobs:
	build-and-deploy:
	runs-on: ubuntu-latest

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

	- name: Set up JDK 17
	uses: actions/setup-java@v3
	with:
	java-version: '17'
	distribution: 'temurin'

	- name: Grant execute permission for gradlew
	run: chmod +x gradlew

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

	- name: Create SSH key file
	run: \|
	echo "${{ secrets.EC2_SSH_KEY }}" > private_key.pem
	chmod 600 private_key.pem

	- name: Deploy to EC2
	run: \|
	max_retries=3
	retry_count=0

	while [ $retry_count -lt $max_retries ]; do
	if scp -i private_key.pem -o StrictHostKeyChecking=no -o ConnectTimeout=10 \
	build/libs/*.jar ${{ secrets.EC2_USER }}@${{ secrets.EC2_HOST }}:/home/ubuntu/app.jar; then
	break
	fi
	retry_count=$((retry_count + 1))
	echo "SCP failed. Retrying ($retry_count/$max_retries)..."
	sleep 5
	done

	if [ $retry_count -eq $max_retries ]; then
	echo "SCP failed after $max_retries attempts"
	exit 1
	fi

	ssh -i private_key.pem -o StrictHostKeyChecking=no -o ConnectTimeout=10 \
	${{ secrets.EC2_USER }}@${{ secrets.EC2_HOST }} << 'EOF'
	sudo systemctl restart studylink
	sudo systemctl status studylink
	EOF

	- name: Clean up
	if: always()
	run: rm -f private_key.pem

	- name: Send deployment notification
	if: success()
	run: echo "Deployment successful!"

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