feat(action) add release build

.github/workflows/release-build.yml

@@ -0,0 +1,64 @@
+name: build release nocturne image
+on:
+  push:
+    branches:
+      - release
+
+env:
+  REGISTRY: cr.lmt.moe
+  TAG: release
+  PROJECT: nocturne
+
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+    steps:
+      - name: checkout
+        uses: actions/checkout@v4
+
+      - name: setup builder
+        uses: docker/setup-buildx-action@v3
+
+      - name: registry login
+        uses: docker/login-action@v3
+        with:
+          registry: ${{ env.REGISTRY }}
+          username: ${{ secrets.REGISTRY_USERNAME }}
+          password: ${{ secrets.REGISTRY_PASSWORD }}
+
+      - name: build containers
+        run: |
+          make build
+
+      - name: tag and push
+        run: |
+          PROJECT_NAME=$(basename "$PWD")
+
+          ALL_IMAGES=$(docker compose -f prod.compose.yaml config --services 2>/dev/null)
+          PULLED_IMAGES=$(docker compose -f prod.compose.yaml config 2>/dev/null \
+                          | awk '/image:/ {print $2}' \
+                          | sort -u \
+                          | sed 's/:.*//' \
+          )
+          TO_PUSH=$(comm -23 \
+            <(echo "$ALL_IMAGES" | sort) \
+            <(echo "$PULLED_IMAGES") \
+          )
+          
+          FMT_STRING=$(echo "$TO_PUSH" | xargs printf '%s, ' | sed 's/, $//')
+          echo "services to push: $FMT_STRING"
+          
+          for SERVICE in $TO_PUSH; do
+            LOCAL_TAG="${PROJECT_NAME}-${SERVICE}:latest"
+            REMOTE_TAG="${REGISTRY}/${PROJECT}/${SERVICE}:${TAG}"
+          
+            if docker image inspect "$LOCAL_TAG" >/dev/null 2>&1; then
+              echo "Pushing $REMOTE_TAG"
+              docker tag "$LOCAL_TAG" "$REMOTE_TAG"
+              docker push "$REMOTE_TAG"
+            else
+              echo "warn: image $LOCAL_TAG not found, skipping $SERVICE"
+            fi
+          
+          done