build : docker ci 파이프라인 추가

Author: polyglot-k

.github/workflows/build&ci.yaml

@@ -0,0 +1,38 @@
+name: Docker CI/CD
+
+on:
+  pull_request:
+    branches:
+      - 'develop'
+  push:
+    branches:
+      - 'develop'
+
+  workflow_dispatch:
+
+jobs:
+  build-and-deploy:
+    runs-on: ubuntu-latest
+
+    steps:
+      - name: Checkout source
+        uses: actions/checkout@v3
+
+      - name: Set up JDK 21
+        uses: actions/setup-java@v3
+        with:
+          java-version: '21'
+          distribution: 'temurin'
+
+      - name: Build with Gradle
+        run: ./gradlew clean build -x test
+
+      - name: Log in to DockerHub
+        uses: docker/login-action@v3
+        with:
+          username: ${{ secrets.DOCKER_USERNAME }}
+          password: ${{ secrets.DOCKER_PASSWORD }}
+
+      - name: Build Docker image
+        run: |
+          docker build -t kangtaehyun1107/mosu-server:${{ github.sha }} .