💚 ci: Github actions

Author: 신윤진

.github/workflows/deploy.yml

@@ -0,0 +1,66 @@
+name: CI/CD (Docker)
+
+on:
+  push:
+    branches: [ "develop" ]
+  pull_request:
+    branches: [ "develop" ]
+
+jobs:
+  docker:
+    runs-on: ubuntu-latest
+
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+
+      # Buildx
+      - name: Set up Docker Buildx
+        uses: docker/setup-buildx-action@v3
+
+      # Docker Hub 로그인 (토큰 사용)
+      - name: Login to Docker Hub
+        if: github.event_name == 'push'
+        uses: docker/login-action@v3
+        with:
+          username: ${{ secrets.DOCKER_USERNAME }}
+          password: ${{ secrets.DOCKER_PASSWORD }}
+
+      # 이미지 빌드 (PR에선 push:false), develop 푸시 시 push:true
+      - name: Build (PR)
+        if: github.event_name == 'pull_request'
+        uses: docker/build-push-action@v5
+        with:
+          context: .
+          push: false
+          tags: ${{ secrets.DOCKER_USERNAME }}/dogcat:pr-${{ github.event.pull_request.number }}
+          cache-from: type=gha
+          cache-to: type=gha,mode=max
+
+      - name: Build & Push (develop)
+        if: github.event_name == 'push'
+        uses: docker/build-push-action@v5
+        with:
+          context: .
+          push: true
+          tags: |
+            ${{ secrets.DOCKER_USERNAME }}/dogcat:dev
+            ${{ secrets.DOCKER_USERNAME }}/dogcat:${{ github.sha }}
+          cache-from: type=gha
+          cache-to: type=gha,mode=max
+
+  deploy:
+    needs: docker
+    runs-on: ubuntu-latest
+    if: github.event_name == 'push'
+    steps:
+      - name: Deploy to Server
+        uses: appleboy/ssh-action@v1.2.0
+        with:
+          host: ${{ secrets.SERVER_HOST }}
+          username: ${{ secrets.SERVER_USER }}
+          key: ${{ secrets.SERVER_SSH_KEY }}
+          script: |
+            cd ~/dogcat
+            docker compose -f docker-compose-dev.yml --env-file .env.dev pull
+            docker compose -f docker-compose-dev.yml --env-file .env.dev up -d --build