Production ready nodejs Dockerfile sample

.dockerignore

# Ignore all .files except .babelrc
.*
!.babelrc

# Ignore build directories and dependencies
# everything that will be re-generated by the install/build steps
lib
dist
node_modules

# Ignore dev configuration files
docker-compose.yml
Dockerfile
Makefile
nodemon.json

# Remove documentation
*.md

# Ignore tests files
src/**/*.test.js
test
jest.config.json

Dockerfile

FROM node:9-alpine AS builder
LABEL maintainer="Julien MERCIER <devci@j3ck3l.me>"

# Build project

WORKDIR /home/node/app
COPY . .

# Build whatever you have to build (babel, grunt, webpack, etc.)
RUN npm install && \
    npm run build

# Make the run container
#
FROM node:9-alpine
ENV NODE_ENV=production
WORKDIR /home/node/app

# Install deps for production only
COPY ./package* ./
RUN npm install && \
    npm cache clean --force

# Copy build source from builder stage
COPY --from=builder /home/node/app/dist ./dist

CMD npm start