docker npm install Error: getaddrinfo ENOTFOUND registry.npmjs.org registry.npmjs.org:443

Question

I\'m using docker version 1.10.1 on RHEL 7 and getting npm install error when using below Dockerfile. The Error: getaddrinfo ENOTFOUND registry.npmjs.org registry.npmjs.org:

Answer 1

I was following a tutorial. This error doesn't happen for me when I copy all my files:

# Specify base image
FROM node:alpine

WORKDIR /usr/app

# Install dependencies
COPY ./ ./
RUN npm install

# Default command
CMD ["npm", "start"]

It happens with me when I copy package.json first and then copy other files after npm install:

# Specify base image
FROM node:alpine

WORKDIR /usr/app

# Install dependencies
COPY ./package.json ./
RUN npm install

COPY ./ ./

# Default command
CMD ["npm", "start"]