Add Dockerfile.dev for backend, migrate frontend image to "serve" and change both docker-compose.ymls

backend/Dockerfile

@@ -1,13 +1,14 @@
-FROM node:alpine AS builder
+FROM node:14.3.0-alpine AS builder
 WORKDIR /app
-COPY ./package.json ./
+COPY package.json .
+COPY package-lock.json .
 RUN npm install
 COPY . .
 RUN npm run build
 
-FROM node:alpine
+FROM node:14.3.0-alpine
 WORKDIR /app
-COPY --from=builder /app ./
+COPY --from=builder /app .
 
 EXPOSE 3000
 CMD ["npm", "run", "start:prod"]

backend/Dockerfile.dev

@@ -0,0 +1,12 @@
+FROM node:14.3.0-alpine AS builder
+WORKDIR /app
+ENV ENVIRONMENT dev
+
+COPY package.json .
+COPY package-lock.json .
+RUN npm install
+COPY . .
+
+EXPOSE 3000
+CMD ["npm", "run", "start:${ENVIRONMENT}"]
+