Horus 2 node

Server specifications

Specification	Requirement
CPU	2+ VCPU
RAM	4+ GB
Storage	40+ GB SSD
UBUNTU	20

Installing essentials components

Before diving into the installation of your node, it's essential to update your VPS. To do this, simply run the following command in your VPS terminal :

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

Installing Docker

Run the following command in your terminal :

sudo apt install docker.io 

Check that Docker has been correctly installed :

docker --version 

Installing Geth

Geth is a command-line tool for running a node.

wget https://gethstore.blob.core.windows.net/builds/geth-linux-amd64-1.13.8-b20b4a71.tar.gz

Extract the file :

tar -xvzf geth-linux-amd64-1.13.8-b20b4a71.tar.gz

Enter the Geth folder, and create your EVM wallet:

cd geth-linux-amd64-1.13.8-b20b4a71 ./geth account new --keystore ./keystore

Enter a password and keep it to one side, as you'll need it later. A wallet address will also be generated. Keep it to one side too.

Installing Nulink

Get the NuLink image docker :

cd docker pull nulink/nulink:latest

Create a Nulink folder

cd /root mkdir nulink

Copy your private keys folder into the NuLink folder:

cp /root/geth-linux-amd64-1.13.8-b20b4a71/keystore/* /root/nulink

Give all permissions to your NuLink folder:

chmod -R 777 /root/nulink

Node configuration

You'll start by defining a password for your operator.

export NULINK_KEYSTORE_PASSWORD=<YOUR_PASSWORD>

In the next command, enter the password you created in the previous step :

export NULINK_OPERATOR_ETH_PASSWORD=<YOUR_PASSWORD>

In the next command, enter the EVM wallet you generate in the previous step :

export WALLET=<YOUR_WALLET>

In the next command, enter the Keystore name you generate in the previous step :

export KEYSTORE=<YOUR_KEYSTORE>

Node initialisation

Run the command :

docker run -it --rm \
-p 9151:9151 \
-v /root/nulink:/code \
-v /root/nulink:/home/circleci/.local/share/nulink \
-e $NULINK_KEYSTORE_PASSWORD \
nulink/nulink nulink ursula init \
--signer keystore:///code/$KEYSTORE \
--eth-provider https://data-seed-prebsc-2-s2.binance.org:8545 \
--network horus \
--payment-provider https://data-seed-prebsc-2-s2.binance.org:8545 \
--payment-network bsc_testnet \
--operator-address $WALLET \
--max-gas-price 10000000000

This will generate a seed phrase. Keep it safe.

Node laucnh

Run your node with the following command :

docker run --restart on-failure -d \
--name ursula \
-p 9151:9151 \
-v /root/nulink:/code \
-v /root/nulink:/home/circleci/.local/share/nulink \
-e $NULINK_KEYSTORE_PASSWORD \
-e $NULINK_OPERATOR_ETH_PASSWORD \
nulink/nulink nulink ursula run --no-block-until-ready

Check the log

docker logs -f ursula