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hpess/devenv-nodejs

This container is a development environment for nodejs, expanding on the framework of hpess/devenv by installing the tools required to develop in node:

  • nvm (default install node v0.12)
  • grunt-cli, jake, forever, npm-check-updates, depcheck, js-beautify, nsp

Use

The easiest way is probably with a fig file, as you need to pass in some environment variables to configure things.

fig.yml:

devenv:
  image: hpess/devenv-nodejs
  hostname: 'nodejs'
  ports:
    - "2022:2022"
  environment:
    devenv_password: "password"
    devenv_wemux_password: "password"
    git_name: "Mr Example"
    git_email: "mr.example@domain.com"
    git_ssl_verify: "false"
    npm_registry: "http://registry.npmjs.org"
    npm_ssl_verify: "false"

A breakdown here:

  • The passwords are used to control SSH and Wemux access to the environment. Not required, will just default if they need to.
  • Git details, again if you're not using git, they're not required. git_ssl_verify will allow connections to https sources with invalid certificates
  • Npm details, again, not required.
  • Volumes: Mount your source code to /storage as that's the working directory.

Then type sudo fig up -d devenv and ssh in with ssh -T devenv@127.0.0.1 -p 2022

No SSH

You can run a single command in the container, instead of sshd etc if you so chose, for example - if you just want to enter an interactive node shell sudo fig run --rm devenv node results in:

****************************************************
*  Welcome to the HP ESS Development Environment!  *
****************************************************
 => Primary logon username: devenv, password: password
 => Wemux logon username: wemux, password: password
 => Executing: node
>

NodeJS application profiling

I have made it easy for you to profile your nodejs applications and generate a flamegraph.svg. Basically just be in the root of your application and type "node-profile". CTRL+C when you're done and voilla, a flamegraph for that application will be copied to the /storage mount.

SSH Agent Forwarding

If you want to pass through your SSH identity, so that you can use git in the docker container with your credentials, use SSH Agent Forwarding:

ssh -T devenv@127.0.0.1 -p 2022

Even easier use

If, like me, you work behind a corporate firewall etc sometimes - you might want to take a look at hpess/dockerproxy

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hpess