Add docker bake file, and build action

.github/workflows/build.yaml

@@ -0,0 +1,23 @@
+name: Build OCI image
+on: push
+jobs:
+  Build:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+      - uses: docker/login-action@v3
+        with:
+          registry: ghcr.io
+          username: ${{ github.repository_owner }}
+          password: ${{ secrets.GITHUB_TOKEN }}
+      - uses: docker/metadata-action@v5
+        with:
+          images: |
+            ${{ github.repository_owner }}/${{ github.repository }}
+            ghcr.io/${{ github.repository }}
+      - uses: docker/bake-action@v5
+        with:
+          files: |
+            ./docker-bake.hcl
+            ${{ steps.meta.outputs.bake-file }}
+          push: true

docker-bake.hcl

@@ -0,0 +1,8 @@
+target "docker-metadata-action" {}
+
+target "default" {
+  inherits = ["docker-metadata-action"]
+  context = "."
+  dockerfile = "Dockerfile"
+  tags = ["spring-boilerplate:latest"]
+}