Dockerfile variables added

Dockerfile

@@ -1,9 +1,10 @@
 FROM node:17 AS ANGULAR_BUILD
+ARG MODE
 RUN npm install -g npm@8.4.0
 RUN npm install -g @angular/cli
 COPY ui /ui
 WORKDIR ui
-RUN npm install && ng build --configuration=production
+RUN npm install && ng build --configuration=${MODE}
 
 
 FROM golang:alpine AS GO_BUILD