persistenceBridge

persistenceBridge

This project implements an application for the Persistence Bridge Orchestrator that listens to, verifies, transforms and relays transactions between a Cosmos-SDK chain and ethereum.

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Hardware Requirements

• Minimal
  • 1 GB RAM
  • 25 GB HDD
  • 1.4 GHz CPU
• Recommended
  • 2 GB RAM
  • 100 GB HDD
  • 2.0 GHz x2 CPU

NOTE: SSDs have limited TBW before non-catastrophic data errors. Running a full node requires a TB+ writes per day, causing rapid deterioration of SSDs over HDDs of comparable quality.

Operating System

• Linux/Windows/MacOS(x86)
• Recommended
  • Linux(x86_64)

Installation Steps

Prerequisite: go1.16+ required. ref

Prerequisite: git. ref

Optional requirement: GNU make. ref

• Clone git repository

git clone https://github.com/persistenceOne/persistenceBridge.git

Note: If running go the latest version (tested on 1.16.3), do export CGO_ENABLED="0" before make install

• Make the binary
  Might require you to run export CGO_ENABLED="0" before make.

make all

When starting for first time --tmStart --ethStart needs to be always given, after that not adding it will start checking from last checked height + 1

• Starting the bridge

persistenceBridge init

Start the kafka server. The starting script is available at .script/startup.sh

This generates a config.toml file in $HOME/.persistenceBridge/ with empty and default values. Update this file as per configuration (Telegram configuration is not compulsory).

Add participating validators:

persistenceBridge add [validator_address] [validator_name]

Before starting the bridge, the wrap address (on cosmos chain) and bridge admin (on eth chain) should have some token balance otherwise bridge won't be able to do tx. Both the address can be queried (after all the configuration has been filled) by: persistenceBridge show

Now when starting for the first time:

persistenceBridge start --tmStart [START_HEIGHT_ON_COSMOS_CHAIN] --ethStart [START_HEIGHT_ON_ETHEREUM_CHAIN]

When starting next time

persistenceBridge start