GitHub Actions 자동 빌드 추가

.github/workflows/build-image.yml

@@ -0,0 +1,31 @@
+name: build-image
+
+on:
+  push:
+    branches:
+      - master
+  workflow_dispatch:
+
+jobs:
+  build-image:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Source Code Checkout
+        uses: actions/checkout@master
+      - name: Set up QEMU
+        uses: docker/setup-qemu-action@v2
+      - name: Set up Docker Buildx
+        uses: docker/setup-buildx-action@v1
+      - name: Login to GitHub Container Registry
+        uses: docker/login-action@v1
+        with:
+          registry: ghcr.io
+          username: ${{ github.actor }}
+          password: ${{ github.token }}
+      - name: Build and push
+        uses: docker/build-push-action@v2
+        with:
+          context: .
+          platforms: linux/arm64/v8
+          push: true
+          tags: 'ghcr.io/${{ github.repository }}:latest'