update dockerfile

Author: serban-alexandru

src/dockerizers/angular/tests/default/code/dockerizer/Dockerfile

@@ -1,25 +1,14 @@
 # Use official node image as the base image
 FROM node:latest as build
-
-# Set the working directory
 WORKDIR /app
-
-# Add the source code to app
-COPY . .
-
-# Install all the dependencies
+COPY package*.json ./
 RUN npm install
-
-# Generate the build of the application
+COPY . .
 RUN npm run build
 
 
 # Use official nginx image as the base image
 FROM nginx:latest
-
-# Copy the build output to replace the default nginx contents.
 COPY --from=build /app/dist/angular-test /usr/share/nginx/html
-
-# Expose port 80
 EXPOSE 80
 CMD ["nginx", "-g", "daemon off;"]