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snarkOS

Table of Contents

1. Overview

snarkOS is a decentralized operating system for private applications. It forms the backbone of Aleo and enables applications to verify and store state in a publicly verifiable manner.

2. Build Guide

2.1 Requirements

The following are minimum requirements to run an Aleo node:

  • CPU: 16-cores (32-cores preferred)
  • RAM: 16GB of memory (32GB preferred)
  • Storage: 128GB of disk space
  • Network: 50 Mbps of upload and download bandwidth

Please note to run an Aleo proving node that is competitive, the machine will require more than these requirements.

2.2 Installation

Before beginning, please ensure your machine has Rust v1.62+ installed. Instructions to install Rust can be found here.

Start by cloning the snarkOS Github repository:

git clone https://github.com/AleoHQ/snarkOS.git --depth 1

Next, move into the snarkOS directory:

cd snarkOS

[For Ubuntu users] A helper script to install dependencies is available. From the snarkOS directory, run:

./build_ubuntu.sh

3a. Run an Aleo Client Node

Start by following the instructions in the Build Guide.

Next, to start a client node, from the snarkOS directory, run:

./run-client.sh

3b. Run an Aleo Prover Node

Note: The Aleo prover node will be available in Phase 2.

Start by following the instructions in the Build Guide.

Next, to generate an Aleo prover address, run:

snarkos experimental new_account

or from the snarkOS directory, run:

cargo run --release -- experimental new_account

This will output a new Aleo account in the terminal.

Please remember to save the account private key and view key. The following is an example output:

 Attention - Remember to store this account private key and view key.

  Private Key  APrivateKey1xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx  <-- Save Me
     View Key  AViewKey1xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx  <-- Save Me
      Address  aleo1xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx  <-- Use Me For The Next Step

Next, to start a proving node, from the snarkOS directory, run:

./run-prover.sh

When prompted, enter your Aleo prover address:

Enter your Aleo prover address:
aleo1xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx

4. FAQs

1. My node is unable to compile.

  • Ensure your machine has Rust v1.62+ installed. Instructions to install Rust can be found here.
  • If large errors appear during compilation, try running cargo clean.
  • Ensure snarkOS is started using ./run-client.sh or ./run-prover.sh.

2. My node is unable to connect to peers on the network.

  • Ensure ports 4130/tcp and 4180/tcp are open on your router and OS firewall.
  • Ensure snarkOS is started using ./run-client.sh or ./run-prover.sh.

3. I can't generate a new address

  • Before running the command above (snarkos experimental new_account) try source ~/.bashrc
  • Also double check the spelling of snarkos. Note the directory is /snarkOS, the command is snarkos

5. Command Line Interface

To run a node with custom settings, refer to the full list of options and flags available in the snarkOS CLI.

The full list of CLI flags and options can be viewed with snarkos --help:

snarkos
The Aleo Team <hello@aleo.org>

USAGE:
    snarkos [FLAGS] [OPTIONS] [SUBCOMMAND]

FLAGS:
        --display    If the flag is set, the node will render a read-only display
    -h, --help       Prints help information
        --norpc      If the flag is set, the node will not initialize the RPC server
    -V, --version    Prints version information

OPTIONS:
        --connect <connect>          Specify the IP address and port of a peer to connect to
        --dev <dev>                  Enables development mode, specify a unique ID for the local node
        --network <network>          Specify the network of this node [default: 2]
        --node <node>                Specify the IP address and port for the node server [default: 0.0.0.0:4132]
        --prover <prover>            Specify this as a prover node, with the given prover address
        --rpc <rpc>                  Specify the IP address and port for the RPC server [default: 0.0.0.0:3032]
        --password <rpc-password>    Specify the password for the RPC server [default: pass]
        --username <rpc-username>    Specify the username for the RPC server [default: root]
        --verbosity <verbosity>      Specify the verbosity of the node [options: 0, 1, 2, 3] [default: 2]

SUBCOMMANDS:
    clean           Removes the ledger files from storage
    experimental    Experimental features
    help            Prints this message or the help of the given subcommand(s)
    update          Updates snarkOS to the latest version

6. Development

We welcome all contributions to snarkOS. Please refer to the license for the terms of contributions.

7. License

License: GPL v3