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Outline Server

Build Status

This repository has all the code needed to create and manage Outline servers on DigitalOcean. An Outline server runs instances of Shadowsocks proxies and provides an API used by the Outline Manager application.

Go to https://getoutline.org for ready-to-use versions of the software.

Components

The system comprises the following components:

  • Outline Server: a proxy server that runs a Shadowsocks instance for each access key and a REST API to manage the access keys. The Outline Server runs in a Docker container in the host machine.

    See src/shadowbox

  • Outline Manager: an Electron application that can create Outline Servers on the cloud and talks to their access key management API to manage who has access to the server.

    See src/server_manager

  • Metrics Server: a REST service that the Outline Server talks to if the user opts-in to anonymous metrics sharing.

    See src/metrics_server

Code Prerequisites

In order to build and run the code, you need the following installed:

  • Node
  • Yarn
  • Wine, if you would like to generate binaries for Windows.

Then you need to install all the NPM package dependencies:

yarn

This project uses Yarn workspaces.

Build System

We have a very simple build system based on package.json scripts that are called using yarn and a thin wrapper for what we call build "actions".

We've defined a do package.json script that takes an action parameter:

yarn do $ACTION

This command will define a do_action() function and call ${ACTION}_action.sh, which must exist. The called action script can use do_action to call its dependencies. The $ACTION parameter is always resolved from the project root, regardless of the caller location.

The idea of do_action is to keep the build logic next to where the relevant code is. It also defines two environmental variables:

  • ROOT_DIR: the root directory of the project, as an absolute path.
  • BUILD_DIR: where the build output should go, as an absolute path.

Build output

Building creates the following directories under build/:

  • web_app/: The Manager web app.
    • static/: The standalone web app static files. This is what one deploys to a web server or runs with Electron.
  • electron_app/: The launcher desktop Electron app
    • static/: The Manager Electron app to run with the electron command-line
    • bundled/: The Electron app bundled to run standalone on each platform
    • packaged/: The Electron app bundles packaged as single files for distribution
  • invite_page: the Invite Page
    • static: The standalone static files to be deployed
  • shadowbox: The Proxy Server

The directories have subdirectories for intermediate output:

  • ts/: Autogenerated Typescript files
  • js/: The output from compiling Typescript code
  • browserified/: The output of browserifying the JavaScript code

To clean up:

yarn run clean