RTL/.github/docs/Core_lightning_setup.md

RTL Core lightning setup

• Introduction
• Pre-requisite
• Architecture
• Installation
• Prep for execution
• Start the server and access the app

Introduction

RTL is now enabled to manage lightning nodes running Core Lightning

Follow the below steps to install and setup RTL to run on Core Lightning

Pre-requisites:

1. Functioning Core Lightning node. Follow install instructions on their github
2. NodeJS - Can be downloaded here
3. CLNRest - Ensure that core lightning's CLNRest API server is configured. Configuration instructions here
4. Create/reuse core-lightning's rune. Check createrune and showrunes documentation for more details on how to create runes
5. Copy the rune and save it in a file which must be accessible to RTL. The content of the file must be LIGHTNING_RUNE="<your-rune>"

Architecture

Installation:

To download a specific RTL version follow the instructions on the release page

To download from master (not recommended):

First time setup

$ git clone https://github.com/Ride-The-Lightning/RTL.git
$ cd RTL
$ npm install --omit=dev --legacy-peer-deps

Or: Update existing build

$ cd RTL
$ git reset --hard HEAD
$ git clean -f -d
$ git pull
$ npm install --omit=dev --legacy-peer-deps

Error on npm install

If there is an error with upstream dependency conflict message then replace npm install --omit=dev with npm install --omit=dev --legacy-peer-deps.

Prep for Execution

RTL requires its own config file RTL-Config.json, to start the server and provide user authentication on the app

• Rename the file Sample-RTL-Config.json to RTL-Config.json located at./RTL
• Locate the complete path of the readable .commando file on your node
• Modify the RTL conf file per the example file below

Ensure that the follow values are correct per your config:

• lnImplementation - This should be CLN, indicating that RTL is connecting to a core lightning node
• runePath - Path of the folder including filename which contains the rune for the node. The content of the file must be LIGHTNING_RUNE="<your-rune>"
• lnServerUrl - complete url with ip address and port of the CLNRest server
• multiPass - Specify the password (in plain text) to access RTL. This password will be hashed and not stored as plain text
• configPath (optional) - File path of the core lightning config file, if RTL server is local to the core lightning server

{
  "multiPass": <password required for accessing RTL>,
  "port": "3000",
  "defaultNodeIndex": 1,
  "dbDirectoryPath": "<Complete path of the folder where rtl's database file should be saved>",
  "SSO": {
    "rtlSSO": 0,
    "rtlCookiePath": "",
    "logoutRedirectLink": ""
  },
  "nodes": [
    {
      "index": 1,
      "lnNode": "Core Lightning Testnet # 1",
      "lnImplementation": "CLN",
      "authentication": {
        "runePath": "<Modify to include the path of the folder including filename which contains `rune`>",
        "configPath": "<Optional - Config file path for core lightning>"
      },
      "settings": {
        "userPersona": "OPERATOR",
        "themeMode": "DAY",
        "themeColor": "PURPLE",
        "bitcoindConfigPath": "",
        "logLevel": "INFO",
        "fiatConversion": false,
        "unannouncedChannels": false,
        "lnServerUrl": "https://<CLNRest api server ip address>:3001",
        "blockExplorerUrl": "<Default: https://mempool.space>"
      }
    }
  ]
}

Start the server and access the app

Run the following command:

$ node rtl

If the server started successfully, you should get the below output on the console:

$ Server is up and running, please open the UI at http://localhost:3000 or your proxy configured url

Open your browser at the following address: http://localhost:3000 to access the RTL app

Detailed config and instructions

For detailed config and access options and other information, view the main readme page