setting: github acitons 작성

- 도커 이미지 빌드
- AWS ECR에 이미지 업로드
- 이미지 태그 업로드 확인용 커밋 푸시

.github/workflows/main.yaml

@@ -0,0 +1,45 @@
+name: Build and Deploy
+
+on:
+  push:
+    branches: [ "master" ]
+
+jobs:
+  deploy:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v3
+
+      - name: Configure AWS Credentials
+        uses: aws-actions/configure-aws-credentials@v1
+        with:
+          aws-access-key-id: ${{ secrets.AWS_ACCESS_KEY_ID }}
+          aws-secret-access-key: ${{ secrets.AWS_SECRET_ACCESS_KEY }}
+          aws-region: ap-northeast-2
+
+      - name: Login to Amazon ECR
+        id: login-ecr
+        uses: aws-actions/amazon-ecr-login@v1
+
+      - name: Build, tag, and push image to Amazon ECR
+        id: build-and-push
+        env:
+          REGISTRY: ${{ steps.login-ecr.outputs.registry }}
+          REPOSITORY: green-blog-co
+          IMAGE_TAG: ${{ github.sha }}
+        run: |
+          docker buildx build --platform linux/amd64 -t $REGISTRY/$REPOSITORY:$IMAGE_TAG .
+          docker push $REGISTRY/$REPOSITORY:$IMAGE_TAG
+          echo "image=$REGISTRY/$REPOSITORY:$IMAGE_TAG" >> $GITHUB_OUTPUT
+
+      - name: Commit and Push
+        run: |
+          git config --global user.name "shren207"
+          git config --global user.email "[email protected]"
+          git commit -am "Update image to ${{ github.sha }}"
+          git push
+
+
+
+