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Setting up a new network manually

Creating a new network from genesis

This document describes in details how to configure a genesis network with any amount of participants.

Requirements

Hardware requirements

Minimal:

  • 1GB RAM
  • 25GB of disk space
  • 1.4 GHz CPU

Recommended (for highload applications):

  • 2GB RAM
  • 100GB SSD
  • x64 2.0 GHz 2v CPU

Operating System

Current delivery is compiled and tested for Ubuntu 20.04 LTS so we recommend using this distribution for now. In the future, it will be possible to compile the application for a wide range of operating systems thanks to the Go language.

Deployment steps

Setting up nodes

All participants should setup their nodes using default genesis and empty list of peers.

Generating genesis file

  1. Participants must choose <chain_id> for the network.
  2. Each participant (one by one) should:

    • Generate local keys for the future account:

      Command cheqd-noded keys add <key_name>

      Example cheqd-noded keys add alice

    • (Each participant except the first one) Get genesis config from the another participant:

      Location on the previous participant's machine: $HOME/.cheqdnode/config/genesis.json

      Destination folder on the current participant's machine: $HOME/.cheqdnode/config/

    • (Each participant except the first one) Get genesis node transactions from the previous participant:

      Location on the previous participant's machine: $HOME/.cheqdnode/config/gentx/

      Destination folder on the current participant's machine: $HOME/.cheqdnode/config/gentx/

    • Add a genesis account with a public key:

      Command: cheqd-noded add-genesis-account <key_name> 10000000cheq,100000000stake

      Example: cheqd-noded add-genesis-account alice 10000000cheq,100000000stake

    • Generate genesis node transaction:

      Command: cheqd-noded gentx <key_name> 1000000stake --chain-id <chain_id>

      Example: cheqd-noded gentx alice 1000000stake --chain-id cheqd-node

      TODO: Node owner should specify gas prices here. This work is in progress.

  3. The last participant:

    • Add genesis node transactions into genesis:

      Command: cheqd-noded collect-gentxs

    • Verify genesis:

      Command: cheqd-noded validate-genesis

    • Share genesis with other nodes:

      Location on the last participant's machine: $HOME/.cheqdnode/config/genesis.json

Sharing peer list

All participants should share their peer info with each other. See node setup instruction for more information.

Updating genesis and persistent peers

  • Each participant should:

    • Stop the node: systemctl stop cheqd-noded

    • Make sure the node is stopped systemctl status cheqd-noded

    • Update the genesis file:

      File location: $HOME/.cheqdnode/config/genesis.json, where HOME is home directory for cheqd user. Be default it should be /home/cheqd.

    • Update peer list:

      Open node's config file: $HOME/.cheqdnode/config/config.toml, where HOME is home directory for cheqd user. Be default it should be /home/cheqd.

      Search for persistent_peers parameter and set it's value to a comma separated list of peers.

      Format: <node-0-id>@<node-0-ip>, <node-1-id>@<node-1-ip>, <node-2-id>@<node-2-id>, <node-3-id>@<node-3-id>.

      Domain names can be used instead of IP adresses.

      Example:

      persistent_peers = "d45dcc54583d6223ba6d4b3876928767681e8ff6@node0:26656, 9fb6636188ad9e40a9caf86b88ffddbb1b6b04ce@node1:26656, abbcb709fb556ce63e2f8d59a76c5023d7b28b86@node2:26656, cda0d4dbe3c29edcfcaf4668ff17ddcb96730aec@node3:26656"

    • Start node: systemctl start cheqd-noded

    • Make sure the node process is running: systemctl status cheqd-noded

Congratulations, you should have node(s) deployed and running on a network if the above steps succeed.

Support

Please log issues and any questions via GitHub Issues