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Setup Graft Supernode (Building from Source).md

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Setup Graft Supernode (Building from Source).md

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Setup Graft Supernode (Building from Source)

Getting Started

These instructions will help you build and setup a Graft Supernode from Source.

Requirements

  • OS: Ubuntu 18.04 (other linux distributions and versions may require additional steps)
  • RAM: 2GB per CPU Core

Prepare the server

If you have not done so add a user and give it sudo rights. We'll use graft-user, but you can use any username you prefer.

adduser graft-user
usermod -aG sudo graft-user

Logout of root and log back in with your new username and password. Once you are logged in under the new account update and upgrade the server. If you receive a prompt "What do you want to do about modified configuration file sshd_config?" choose the first option "install the package maintainer's version"

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

Create a swap file

free -h
df -h
sudo fallocate -l 4G /swapfile          # Change 4G to the proper size swap file for your server
sudo chmod 600 /swapfile
sudo mkswap /swapfile
sudo swapon /swapfile
sudo su -
cat <<EOF >> /etc/fstab
/swapfile none swap sw 0 0
EOF
exit

Add Firewall

sudo ufw default allow outgoing
sudo ufw default deny incoming
sudo ufw allow ssh/tcp
sudo ufw limit ssh/tcp
sudo ufw allow 28600/tcp            # Load balancer http port
sudo ufw allow 28643/tcp            # Load balancer https port
sudo ufw allow 28680/tcp            # p2p node port
sudo ufw allow 28680/udp            # p2p node port
sudo ufw allow 28681/tcp            # rpc node port
sudo ufw allow 28690/tcp            # rpc supernode port
sudo ufw allow 8081/tcp             # block explorer port
sudo ufw logging on
sudo ufw -f enable
sudo ufw status

Install prerequisites

sudo apt-get install -y git build-essential cmake pkg-config libboost-all-dev libssl-dev \
autoconf automake check libpcre3-dev rapidjson-dev libreadline-dev

Increase the limit for maximum allowed opened file descriptors per process

sudo sed -i -e 's/.*DefaultLimitNOFILE=.*/DefaultLimitNOFILE=8192/g' /etc/systemd/system.conf

Git Graft

git clone --recursive -b alpha3 https://github.com/graft-project/graft-ng.git
cd graft-ng
git submodule update --init --recursive

Build Graft Supernode from source

cd $HOME
mkdir -p supernode/logs
cd supernode
cmake -DENABLE_SYSLOG=ON $HOME/graft-ng
make -j2    # Adjust as needed: -j1 for a low-powered machine, -j8 for an 8-core monster with at least 16GB ram

Download current blockchain (optional to reduce time to sync blockchain)

mkdir -p $HOME/.graft/testnet/lmdb
wget https://rta.graft.observer/lmdb/data.mdb -P $HOME/.graft/testnet/lmdb/

Start graftnoded

$HOME/supernode/BUILD/bin/./graftnoded --testnet --log-file ~/supernode/logs/graftnoded.log --log-level=1 --detach

Start graft_server

Start graft_server for long enough to create the stake-wallet then close it. When it starts to scroll hit CTRL-C to exit.

$HOME/supernode/./graft_server

Add Stake to Stake-Wallet

The following command will give you the stake wallet address. Use this address to request testnet graft in the Telegram group or Discord channel.

cat $HOME/.graft/supernode/data/stake-wallet/stake-wallet.address.txt

Download Watch-Only -Wallets (Optional to help catch up graft_server)

mkdir -p $HOME/.graft/supernode/data
wget https://rta.graft.observer/lmdb/watch-only-wallets.tar
tar xf watch-only-wallets.tar -C $HOME/.graft/supernode/data
rm watch-only-wallets.tar

Start Graft Server

$HOME/supernode/./graft_server --log-level=1 --log-file $HOME/supernode/logs/graft_server.log