Fix frontend build

Dockerfile

@@ -1,13 +1,12 @@
-FROM node:latest AS gulp
+FROM node:8-slim AS frontend_builder
 WORKDIR /app
 COPY . .
 RUN npm install
-RUN npm link gulp
-RUN gulp patch
+RUN npm run build
 
-FROM golang:1.11.2 AS build
+FROM golang:1.11.2 AS backend_builder
 WORKDIR /podsync
-COPY --from=gulp /app .
+COPY --from=frontend_builder /app .
 ENV GOOS=linux
 ENV GOARCH=amd64
 ENV CGO_ENABLED=0
@@ -16,9 +15,9 @@ RUN go build  -o server -v ./cmd/app
 FROM alpine
 RUN apk --update --no-cache add ca-certificates
 WORKDIR /app/
-COPY --from=gulp /app/templates ./templates
-COPY --from=gulp /app/dist ./assets
-COPY --from=build /podsync/server .
+COPY --from=frontend_builder /app/templates ./templates
+COPY --from=frontend_builder /app/dist ./assets
+COPY --from=backend_builder /podsync/server .
 ENV ASSETS_PATH /app/assets
 ENV TEMPLATES_PATH /app/templates
 ENTRYPOINT ["/app/server"]

package.json

@@ -17,6 +17,7 @@
     "gulp-uglify": "^3.0.0"
   },
   "scripts": {
+    "build": "gulp -v && gulp patch",
     "test": "echo \"Error: no test specified\" && exit 1"
   },
   "repository": {