Many of these guides don’t cover how to remove. npmrc files from your Dockerfile after installing private npm packages. Most blog posts, Stack Overflow answers, and documentation recommend you delete. npmrc file contains a token with read/write access to your private npm packages. npmrc files ( npm config files) to download private npm packages. I recently completed a security audit of Docker images for a project. I recommend reading that post after this one! Building Docker images with private npm packages On February 24th, 2019 I published a follow-up post about using Docker build secrets instead of multi-stage builds. npmrc files in Docker images Jun 25, 2018 Let me know if you have any questions or comments.Securely using. npmrc it will be kept in the commit history – to clean your secret entirely up make sure to squash them. One thing to keep in mind: even if you delete the. ARG: with this we can tell Docker, that we will use the NPM_TOKEN build argument.To make it work we have to modify our Dockerfile: Luckily since Docker v1.9 there is a new flag available for passing in build-time environment variables: the -build-arg. The variables set with ENV are for runtime only. The naive approach would be to add it using the ENV: ENV NPM_TOKEN=token To access the private modules in NPM, we need to pass the NPM_TOKEN environment variable to the Docker image. It doesn’t do anything extraordinary, just grabs the Alpine image, copies over the package.json file, installs the dependencies, copies the source files and starts the process. Let’s start with the following simple Dockerfile: modules with Docker.ĭuring this guide I am going to use the RisingStack Alpine Node.js Docker image. Node.js is free of locks, so there's no chance to dead-lock any process. In this quick tip, you can learn how to use private Node.js Node.js is an asynchronous event-driven JavaScript runtime and is the most effective when building scalable network applications. had announced support for private modules – still, to make it with Docker you need some work to do. There are three components to npm: the website the Command Line Interface (CLI) the registry Use the website to discover and download packages, create user profiles, and. npm is used by open source developers from all around the world to share and borrow code, as well as many businesses. It has been a while since NPM npm is a software registry that serves over 1.3 million packages.

Npm config set private registry