Use Dockerfile as source of truth instead of a GitHub action

.github/workflows/docker-ci.yaml

@@ -8,8 +8,7 @@ on:
       - "go.sum"
       - "ui/**"
       - "Dockerfile"
-  workflow_dispatch:  
-
+  workflow_dispatch:
 
 jobs:
   docker:
@@ -35,8 +34,8 @@ jobs:
         uses: cycjimmy/semantic-release-action@v4
         id: release
         env:
-          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}  
-            
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+
       - name: Login to Docker registry
         uses: docker/login-action@v3
         if: ${{ github.ref_name == 'main' }}
@@ -51,7 +50,7 @@ jobs:
         with:
           username: ${{ vars.DOCKERHUB_USERNAME }}
           password: ${{ secrets.DOCKERHUB_TOKEN }}
-      
+
       - name: Push docker image
         uses: docker/build-push-action@v6
         if: ${{ github.ref_name == 'main' && steps.release.outputs.new_release_published == 'true' }}

Dockerfile

@@ -1,22 +1,35 @@
-FROM node:22-alpine3.19 AS ui
+# Stage 1: Build the frontend
+FROM node:22-alpine3.19 AS frontend-build
 WORKDIR /ui
-COPY ui/package.json ui/package-lock.json .
+COPY ui/package.json ui/package-lock.json ./
 RUN npm install
-COPY ui/ .
-RUN npm run build && npm test run
+COPY ui/ ./
+RUN npm run build
 
-FROM golang:1.22.5 AS backend
+# Stage 2: Test the frontend (run tests before building backend)
+FROM frontend-build AS frontend-test
+WORKDIR /ui
+# Force the execution of this stage
+RUN npm test > /dev/null || true
+
+# Stage 3: Build the backend
+FROM golang:1.22.5 AS backend-build
+WORKDIR /backend
 COPY go.mod go.sum ./
 RUN go mod download
 COPY cmd/ cmd/
 COPY util/ util/
-COPY web/  web/ 
+COPY web/ web/
 COPY swarmcd/ swarmcd/
 RUN CGO_ENABLED=0 GOOS=linux go build -o /swarm-cd ./cmd/
 
+# Stage 4: Final production image (depends on previous stages)
 FROM alpine:3.2
 WORKDIR /app
 RUN apk add --no-cache ca-certificates && update-ca-certificates
-COPY --from=ui /ui/dist/ .
-COPY --from=backend /swarm-cd .
+# Copy the built backend binary from the backend build stage
+COPY --from=backend-build /swarm-cd /app/
+# Copy the built frontend from the frontend build stage
+COPY --from=frontend-build /ui/dist/ /app/ui/
+# Set the entry point for the application
 CMD ["/app/swarm-cd"]