0G node

This guide will walk you through migrating from using 0gchaind start [flags] to using Cosmovisor to manage your 0gchaind application. Cosmovisor offers the advantage of handling upgrades automatically without manual intervention.

Stop node

sudo systemctl stop 0gd.service

Download cosmovisor script to install

wget https://raw.githubusercontent.com/0glabs/0g-chain/dev/networks/testnet/init-cosmovisor.sh

Download Cosmovisor”

Check Script content

nano init-cosmovisor.sh

Script:

#!/bin/bash

if [ -z "$1" ]; then
    echo "Usage: $0 <0G Home>"
    exit 1
fi

go install cosmossdk.io/tools/cosmovisor/cmd/cosmovisor@latest

export DAEMON_NAME=0gchaind
echo "export DAEMON_NAME=0gchaind" >> ~/.profile
export DAEMON_HOME=$1
echo "export DAEMON_HOME=$1" >> ~/.profile
cosmovisor init $(whereis -b 0gchaind | awk '{print $2}')
mkdir $DAEMON_HOME/cosmovisor/backup
echo "export DAEMON_DATA_BACKUP_DIR=$DAEMON_HOME/cosmovisor/backup" >> ~/.profile
echo "export DAEMON_ALLOW_DOWNLOAD_BINARIES=true" >> ~/.profile

Run script

Before running this script, make sure Go is loaded in your current shell session.
If you haven’t loaded Go yet, please run the following command:

source $HOME/.bash_profile
#requirement go version above v.1.22
go version

chmod +x init-cosmovisor.sh

./init-cosmovisor.sh /root/.0gchain

Reload profile

source ~/.profile

Edit service file to run with Cosmovisor

sudo tee /etc/systemd/system/0gd.service > /dev/null <<EOF
[Unit]
Description=Cosmovisor 0G Node
After=network.target

[Service]
User=root
Type=simple
ExecStart=/root/go/bin/cosmovisor run start --log_output_console
Restart=on-failure
LimitNOFILE=65535
Environment="DAEMON_NAME=0gchaind"
Environment="DAEMON_HOME=/root/.0gchain"
Environment="DAEMON_ALLOW_DOWNLOAD_BINARIES=true"
Environment="DAEMON_RESTART_AFTER_UPGRADE=true"
Environment="DAEMON_DATA_BACKUP_DIR=/root/.0gchain/cosmovisor/backup"
Environment="UNSAFE_SKIP_BACKUP=true"

[Install]
WantedBy=multi-user.target
EOF

Reload daemon and restart node

sudo systemctl daemon-reload && \
sudo systemctl enable 0gd && \
sudo systemctl restart 0gd && sudo systemctl status 0gd && \
sudo journalctl -u 0gd -f -o cat

Check logs

tail -f /root/.0gchain/log/chain.log