feat: prod 브랜치 배포 파이프라인 추가

.github/scripts/mock-deploy.sh

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+#!/usr/bin/env bash
+set -euo pipefail
+
+# Github Actions Runner CD 스크립트
+# 사용 전 필요한 GitHub Secrets
+# - DEPLOY_WEBHOOK_URL: 깃허브 배포 알림을 받을 웹훅 URL
+# - EC2_HOST: 배포 대상 EC2 호스트
+# - EC2_USER: SSH 접속 유저
+# - EC2_SSH_KEY: SSH 개인키 전체 내용 (-----BEGIN ... 포함)
+# - 필요 시 REMOTE_DEPLOY_PATH, CONTAINER_NAME 등 환경변수 오버라이드 가능
+
+APP_NAME="${APP_NAME:-doki}"
+IMAGE_NAME="${IMAGE_NAME:-doki}"
+IMAGE_TAG="${IMAGE_TAG:-latest}"
+FULL_IMAGE="${DOCKER_IMAGE:-${IMAGE_NAME}:${IMAGE_TAG}}"
+WEBHOOK_URL="${WEBHOOK_URL:-}"
+TARGET_HOST="${TARGET_HOST:-}"
+TARGET_USER="${TARGET_USER:-}"
+EC2_SSH_KEY="${EC2_SSH_KEY:-}"
+REMOTE_DEPLOY_PATH="${REMOTE_DEPLOY_PATH:-/opt/${APP_NAME}}"
+CONTAINER_NAME="${CONTAINER_NAME:-${APP_NAME}}"
+
+log() {
+  echo ">>> [deploy] $*"
+}
+
+log ">>> 앱=${APP_NAME} 이미지=${FULL_IMAGE}"
+
+if [[ -z "${WEBHOOK_URL}" ]]; then
+  log ">>> WEBHOOK_URL 비어 있음 → 웹훅 전송 스킵(모의 실행)."
+else
+  log ">>> 웹훅 전송: ${WEBHOOK_URL}"
+  curl -fsS -X POST \
+    -H "Content-Type: application/json" \
+    -d "{\"app\":\"${APP_NAME}\",\"image\":\"${FULL_IMAGE}\"}" \
+    "${WEBHOOK_URL}" || log ">>> 웹훅 전송 실패"
+fi
+
+if [[ -z "${TARGET_HOST}" || -z "${TARGET_USER}" || -z "${EC2_SSH_KEY}" ]]; then
+  log ">>> SSH 정보가 없습니다. 원격 도커 배포 스킵합니다."
+  exit 0
+fi
+
+log ">>> ${TARGET_USER}@${TARGET_HOST} 접속 후 컨테이너 ${CONTAINER_NAME} 재실행"
+KEY_FILE="$(mktemp)"
+trap 'rm -f "${KEY_FILE}"' EXIT
+chmod 600 "${KEY_FILE}"
+printf "%s" "${EC2_SSH_KEY}" > "${KEY_FILE}"
+
+REMOTE_COMMANDS=$(cat <<'EOF'
+set -e
+mkdir -p "$REMOTE_DEPLOY_PATH"
+cd "$REMOTE_DEPLOY_PATH"
+docker pull "$FULL_IMAGE" || true
+docker stop "$CONTAINER_NAME" 2>/dev/null || true
+docker rm "$CONTAINER_NAME" 2>/dev/null || true
+docker run -d --restart=unless-stopped \
+  --name "$CONTAINER_NAME" \
+  -p 8080:8080 \
+  "$FULL_IMAGE"
+EOF
+)
+
+ssh -o StrictHostKeyChecking=no -i "${KEY_FILE}" "${TARGET_USER}@${TARGET_HOST}" \
+  "FULL_IMAGE='${FULL_IMAGE}' CONTAINER_NAME='${CONTAINER_NAME}' REMOTE_DEPLOY_PATH='${REMOTE_DEPLOY_PATH}' bash -s" <<< "${REMOTE_COMMANDS}"
+
+log ">>> Github Actions Runner 배포 스크립트 작동 완료"

.github/workflows/backend-cd.yml

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+name: backend-cd
+
+# prod 브랜치를 통해 배포
+on:
+  push:
+    branches:
+      - prod
+
+permissions:
+  contents: read
+  packages: write
+
+env:
+  REGISTRY: ghcr.io
+  IMAGE_NAME: ${{ github.repository }}
+  IMAGE_TAG: ${{ github.sha }}
+  APP_NAME: doki
+
+jobs:
+  build-and-deploy:
+    name: build-and-deploy
+    runs-on: ubuntu-latest
+    environment: production
+
+    steps:
+      - uses: actions/checkout@v4
+
+      - name: Set up JDK 17
+        uses: actions/setup-java@v4
+        with:
+          java-version: '17'
+          distribution: 'temurin'
+          cache: 'gradle'
+
+      - name: Cache Gradle dependencies
+        uses: actions/cache@v4
+        with:
+          path: |
+            ~/.gradle/caches
+            ~/.gradle/wrapper
+          key: ${{ runner.os }}-gradle-${{ hashFiles('**/*.gradle*', '**/gradle-wrapper.properties') }}
+          restore-keys: |
+            ${{ runner.os }}-gradle-
+
+      - name: Grant execute permission for gradlew
+        run: chmod +x gradlew
+
+      - name: Build jar
+        run: ./gradlew clean bootJar --no-daemon
+
+      - name: Set up Docker Buildx
+        uses: docker/setup-buildx-action@v3
+
+      - name: Log in to GitHub Container Registry
+        uses: docker/login-action@v3
+        with:
+          registry: ${{ env.REGISTRY }}
+          username: ${{ github.actor }}
+          password: ${{ secrets.GITHUB_TOKEN }}
+
+      - name: Build and push image
+        uses: docker/build-push-action@v6
+        with:
+          context: .
+          file: ./Dockerfile
+          push: true
+          tags: |
+            ${{ env.REGISTRY }}/${{ env.IMAGE_NAME }}:${{ env.IMAGE_TAG }}
+            ${{ env.REGISTRY }}/${{ env.IMAGE_NAME }}:latest
+          cache-from: type=gha
+          cache-to: type=gha,mode=max
+
+      - name: Make deploy script executable
+        run: chmod +x .github/scripts/mock-deploy.sh
+
+      - name: (Mock) Deploy to EC2 via webhook + SSH
+        run: .github/scripts/mock-deploy.sh
+        env:
+          APP_NAME: ${{ env.APP_NAME }}
+          IMAGE_NAME: ${{ env.REGISTRY }}/${{ env.IMAGE_NAME }}
+          IMAGE_TAG: ${{ env.IMAGE_TAG }}
+          DOCKER_IMAGE: ${{ env.REGISTRY }}/${{ env.IMAGE_NAME }}:${{ env.IMAGE_TAG }}
+          WEBHOOK_URL: ${{ secrets.DEPLOY_WEBHOOK_URL }}
+          TARGET_HOST: ${{ secrets.EC2_HOST }}
+          TARGET_USER: ${{ secrets.EC2_USER }}
+          EC2_SSH_KEY: ${{ secrets.EC2_SSH_KEY }}
+          REMOTE_DEPLOY_PATH: /opt/${{ env.APP_NAME }}

Dockerfile

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+# 빌드
+FROM eclipse-temurin:17-jdk-jammy AS builder
+WORKDIR /app
+
+COPY gradlew ./
+COPY gradle ./gradle
+COPY build.gradle.kts settings.gradle.kts ./
+COPY src ./src
+
+RUN chmod +x ./gradlew \
+    && ./gradlew clean bootJar --no-daemon
+
+# jre 이미지 생성
+FROM eclipse-temurin:17-jre-jammy
+WORKDIR /app
+
+ENV SPRING_PROFILES_ACTIVE=prod
+
+# Copy the fat jar built in the previous stage
+COPY --from=builder /app/build/libs/*.jar ./app.jar
+
+EXPOSE 8080
+
+ENTRYPOINT ["java", "-jar", "/app/app.jar"]