💡 Light Node Installation

Chain ID: celestia | Latest Version Tag: v0.26.4

Recommended Hardware:

Node Type	CPU	RAM	Storage
Mainnet	2	2GB	100GB

Install dependencies

# Update the repositories
sudo apt update && apt upgrade -y

# Install developer packages
sudo apt install curl git wget htop tmux build-essential jq make lz4 gcc unzip -y

# Install Go
sudo rm -rf /usr/local/go
curl -Ls https://go.dev/dl/go1.24.6.linux-amd64.tar.gz | sudo tar -xzf - -C /usr/local
eval $(echo 'export PATH=$PATH:/usr/local/go/bin' | sudo tee /etc/profile.d/golang.sh)
eval $(echo 'export PATH=$PATH:$HOME/go/bin' | tee -a $HOME/.profile)
echo "export PATH=$PATH:/usr/local/go/bin:$HOME/go/bin" >> $HOME/.bash_profile
source $HOME/.bash_profile
go version

Manual Installation

# Download binary files
cd $HOME && mkdir -p go/bin/
git clone https://github.com/celestiaorg/celestia-node.git
cd celestia-node/
git checkout tags/v0.26.4
make build 
sudo make install 
make cel-key
mv $HOME/celestia-node/cel-key /usr/local/bin/

# Initiaton
celestia light init

Create wallet

KEY_NAME="my_celes_key"
cd ~/celestia-node
./cel-key add $KEY_NAME --keyring-backend test --node.type light

(Optional) Restore an existing cel_key

KEY_NAME="my_celes_key"
cd ~/celestia-node
./cel-key add $KEY_NAME --keyring-backend test --node.type light --recover

You can find the address by running the following command in the celestia-node directory

cd $HOME/celestia-node
./cel-key list --node.type light --keyring-backend test

Add Consensus node RPC and gRPC ports

CORE_IP="<PUT_CONSENSUS_NODE_IP>"
CORE_RPC_PORT="<PUT_CONSENSUS_NODE_RPC_PORT>"
CORE_GRPC_PORT="<PUT_CONSENSUS_NODE_GRPC_PORT>"
KEY_NAME="my_celes_key"

Create Service file

sudo tee /etc/systemd/system/celestia-light.service > /dev/null <<EOF
[Unit]
Description=celestia light
After=network-online.target

[Service]
User=$USER
ExecStart=$(which celestia) light start \
--core.ip $CORE_IP \
--core.rpc.port $CORE_RPC_PORT \
--core.grpc.port $CORE_GRPC_PORT \
--keyring.accname $KEY_NAME \
--metrics.tls=true \
--metrics --metrics.endpoint otel.celestia.observer
Restart=on-failure
RestartSec=3
LimitNOFILE=65535

[Install]
WantedBy=multi-user.target
EOF

Enable and start service

sudo systemctl daemon-reload
sudo systemctl enable celestia-light
sudo systemctl restart celestia-light && sudo journalctl -u celestia-light -fo cat