closes #3 multi-stage dockerfile

Dockerfile

@@ -1,22 +1,31 @@
-FROM node:dubnium-alpine
+FROM node:dubnium-alpine as builder
 
-# Create app directory
 RUN mkdir -p /usr/src/app
 WORKDIR /usr/src/app
 
-# Binary dependency
 RUN apk --no-cache add openssl
 
-# Install app dependencies
 COPY package.json npm-shrinkwrap.json /usr/src/app/
 RUN npm install --quiet
 
-# Bundle app source
 COPY . /usr/src/app
-
-# Build front-end
 RUN npm run build
 
-# Run app
+EXPOSE 3000
+CMD ["npm", "run", "dev"]
+
+FROM node:dubnium-alpine
+
+RUN mkdir -p /usr/src/app
+WORKDIR /usr/src/app
+
+RUN apk --no-cache add openssl
+
+COPY package.json npm-shrinkwrap.json /usr/src/app/
+RUN npm install --quiet --only=production
+
+COPY . /usr/src/app
+COPY --from=builder /usr/src/app/dist ./dist
+
 EXPOSE 3000
 CMD ["npm", "start"]

docker-compose.yml

@@ -4,10 +4,7 @@ services:
   node:
     build:
       context: .
-    entrypoint:
-      - npm
-      - run
-      - dev
+      target: builder
     depends_on:
       - redis
     ports:

package.json

@@ -18,6 +18,7 @@
   },
   "dependencies": {
     "body-parser": "^1.18.3",
+    "cross-env": "^5.2.0",
     "env-var": "^3.5.0",
     "express": "^4.16.4",
     "express-async-router": "^0.1.15",
@@ -36,7 +37,6 @@
     "babel-loader": "^8.0.5",
     "babel-plugin-transform-react-remove-prop-types": "^0.4.24",
     "cookie": "^0.3.1",
-    "cross-env": "^5.2.0",
     "css-loader": "^2.1.1",
     "date-fns": "^1.30.1",
     "eslint": "^5.16.0",