joehua87 / example

node-starter

Why? test change.

I see it's hard & time consuming when deploy node app into production docker, especially with npm install

Features

Node.js preconfig

• Babel (https://github.com/babel/babel)
• nyc test coverage
• Flow type

Fast Docker Build

• Cache yarn (Credit to: https://github.com/mfornasa/DockerYarn.git)
• Reduce docker image size by only installing production dependencies
• Leverage code rebuild:

How it works

• build src => lib
• install production dependencies only in docker (use strategy in this article to leverage cache)
• copy lib & package.json into docker

How it cache

• If you don't change dependencies (for example: yarn add ...) => it just build src => lib & copy the lib directory into docker. Building time is same as normal npm build
• It you change devDependencies => it works like statement above
• If you change dependencies, it will leverage yarn-cache and only install the dependency you just add. And it's just take some seconds to do this

Requirement

• Node.js
• Docker

Getting started

• git clone https://github.com/joehua87/node-starter.git
• yarn
• ./build.sh
• Test that it's work properly: docker run --rm joehua/node-starter node lib/bin/run.js
• Modify src/bin/run.js
• ./build.sh
• Run this again: docker run --rm joehua/node-starter node lib/bin/run.js
• You will see that the image is up to date, and build time is blazing fast

example's Issues

Function X return not correct value