Vana Node Setup - DLP Validator Moshka

Special Thanks 👏 : https://x.com/Keeperssd - https://medium.com/@hamzahnorsihab07 - https://service.josephtran.xyz/

Server Advisor :

⭐⭐⭐ Contabo : https://bit.ly/contabourl

PQ : https://pq.hosting/?from=627713

Hetzner : https://hetzner.cloud/?ref=ASjlHtRt2swV

Digital Ocean : https://digitalocean.pxf.io/q465nn

Minimum hardware requirements :

CPU

RAM

Disk

Ubuntu

8 GB+

10+

Ubuntu 22.04

Update :

sudo apt update -y && sudo apt upgrade -y

sudo apt install ca-certificates zlib1g-dev libncurses5-dev libgdbm-dev libnss3-dev tmux iptables curl nvme-cli git wget make jq libleveldb-dev build-essential pkg-config ncdu tar clang bsdmainutils lsb-release libssl-dev libreadline-dev libffi-dev jq gcc screen unzip lz4 -y

1. Install Python 3.11:

sudo apt update
sudo apt install software-properties-common

sudo add-apt-repository ppa:deadsnakes/ppa
sudo apt update
sudo apt install python3.11 python3.11-venv python3.11-dev

python3.11 --version

2. Install Poetry

curl -sSL https://install.python-poetry.org | python3 -

echo 'export PATH="$HOME/.local/bin:$PATH"' >> $HOME/.bash_profile
source $HOME/.bash_profile
poetry --version

3. Install Nodejs & Npm

# installs nvm (Node Version Manager)
curl -o- https://raw.githubusercontent.com/nvm-sh/nvm/v0.40.0/install.sh | bash

echo 'export NVM_DIR="$HOME/.nvm"' >> $HOME/.bash_profile
echo '[ -s "$NVM_DIR/nvm.sh" ] && \. "$NVM_DIR/nvm.sh"  # This loads nvm' >> $HOME/.bash_profile
echo '[ -s "$NVM_DIR/bash_completion" ] && \. "$NVM_DIR/bash_completion"  # This loads nvm bash_completion' >> $HOME/.bash_profile

source $HOME/.bash_profile

nvm install --lts

node -v
npm -v

# Setup steps

1. Clone Vana-dlp-chatgpt git repo

git clone https://github.com/vana-com/vana-dlp-chatgpt.git
cd vana-dlp-chatgpt

2. Install dependencies

poetry install

3. Install Vana CLI

pip install vana

4. Create wallet

vanacli wallet create --wallet.name default --wallet.hotkey default

This creates two key pairs:

Coldkey: for human-managed transactions (like staking)
Hotkey: for validator-managed transactions (like submitting scores)

Follow the prompts to set a secure password. Save the mnemonic phrases securely; you'll need these to recover your wallet if needed.

Add Satori Testnet to Metamask:

Network name: Vana Moksha Testnet
RPC URL: https://rpc.satori.vana.org
Chain ID: 14800
Currency: VANA Block Explorer : https://moksha.vanascan.io

5. Export your private keys

Follow the prompts and securely save the displayed private keys

#For coldkey
vanacli wallet export_private_key

#For hotkey
vanacli wallet export_private_key

6. Import your coldkey and hotkey addresses to Metamask:

Click your account icon in MetaMask and select "Import Account"
Select "Private Key" as the import method
Paste the private key for your coldkey
Repeat the process for your hotkey

Fund both addresses with testnet VANA:

Visit https://faucet.vana.org/moksha
Connect your Metamask wallet
Request VANA for both your coldkey and hotkey addresses

Note: you can only use the faucet once per day. Use the testnet faucet available at https://faucet.vana.org/moksha to fund your wallets, or ask a VANA holder to send you some test VANA tokens.

Always keep your private keys and mnemonic phrases secure. Never share them with anyone.

# Creating a DLP

Generate Encryption Keys

Run the key generation script:

./keygen.sh

This script generates RSA key pairs for file encryption/decryption in the DLP.
Follow the prompts to enter your name, email, and key expiration.
The script generates four files:
- public_key.asc and public_key_base64.asc (for UI)
- private_key.asc and private_key_base64.asc (for validators)

# Deploy DLP Smart Contracts

Clone the DLP Smart Contract repo:

cd $HOME
rm -rf vana-dlp-smart-contracts
git clone https://github.com/Josephtran102/vana-dlp-smart-contracts
cd vana-dlp-smart-contracts

Install Yarn

npm install -g yarn
yarn --version

Install dependencies:

yarn install

Edit the `.env` file in the `vana-dlp-smart-contracts` directory:

Copy env.example to .env

cp .env.example .env

Edit .env

nano .env

MOKSHA_RPC_URL=https://rpc.moksha.vana.org
MOKSHA_API_URL=https://api.moksha.vanascan.io/api
MOKSHA_BROWSER_URL=https://moksha.vanascan.io

Deploy contracts:

npx hardhat deploy --network moksha --tags DLPDeploy

Update the `.env` file in the `vana-dlp-chatgpt` directory:

nano ~/vana-dlp-chatgpt/.env

Paste this content and change your info:

# The network to use, currently Vana Moksha testnet
OD_CHAIN_NETWORK=moksha
OD_CHAIN_NETWORK_ENDPOINT=https://rpc.moksha.vana.org

# Optional: OpenAI API key for additional data quality check
OPENAI_API_KEY="sk-aIKhy1wmK6VfxzDYkro5pN........._CIJvZx7uZl2HjAA"

# Optional: Your own DLP smart contract address once deployed to the network, useful for local testing

DLP_MOKSHA_CONTRACT=0x657479FF1a0316c105B...........A96625b
# Optional: Your own DLP token contract address once deployed to the network, useful for local testing

DLP_TOKEN_MOKSHA_CONTRACT=0x73eB7F1c42F16A54188c294a878879Bf79c3304C

# The private key for the DLP, follow "Generate validator encryption keys" section in the README
PRIVATE_FILE_ENCRYPTION_PUBLIC_KEY_BASE64="LS0tLS1CRUdJTiB..........g=="

Get OpenAI API here: https://platform.openai.com/settings/profile?tab=api-keys

DLP_SATORI_CONTRACT=0x... (DataLiquidityPool address)

DLP_TOKEN_SATORI_CONTRACT=0x... (DataLiquidityPoolToken address)

PRIVATE_FILE_ENCRYPTION_PUBLIC_KEY_BASE64=... (content of public_key_base64.asc)

Find value of public_key_base64.asc at: /root/vana-dlp-chatgpt/public_key_base64.asc

# Validator Setup

Ensure you're in the `vana-dlp-chatgpt` directory:

cd ~
cd vana-dlp-chatgpt

Fund Validator with DLP Tokens

For DLP creators:

Import DLP token to Metamask using <DataLiquidityPoolToken address>
Send 10 your own DLP tokens to your coldkey address and hotkey address

For non-DLP creators:

Request DLP tokens from the DLP creator
Once received, ensure they are in your coldkey address

Register as a Validator

Note that the following commands use the local chatgpt vanacli tool that supports custom dlp commands.

Register your validator:

./vanacli dlp register_validator --stake_amount 10

./vanacli dlp approve_validator --validator_address=<your hotkey address from Metamask>

Run Validator

poetry run python -m chatgpt.nodes.validator

You can run with systemd in the background with next step.

Find path of Poetry:

echo $(which poetry)

Create service:

sudo tee /etc/systemd/system/vana.service << EOF
[Unit]
Description=Vana Validator Service
After=network.target

[Service]
Type=simple
User=root
WorkingDirectory=/root/vana-dlp-chatgpt
ExecStart=/root/.local/bin/poetry run python -m chatgpt.nodes.validator
Restart=on-failure
RestartSec=10
Environment=PATH=/root/.local/bin:/usr/local/bin:/usr/bin:/bin:/root/vana-dlp-chatgpt/myenv/bin
Environment=PYTHONPATH=/root/vana-dlp-chatgpt

[Install]
WantedBy=multi-user.target
EOF

Start service

sudo systemctl daemon-reload && \
sudo systemctl enable vana.service && \
sudo systemctl start vana.service && \
sudo systemctl status vana.service

Check log:

sudo journalctl -u vana.service -f

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