/Celestia

Celestia Light Node

Light nodes ensure data availability. This is the most common way to interact with the Celestia network.

Hardware requirements

· Memory: 2 GB RAM

· CPU: Single core

· Disk: 5 GB SSD storage

Update & install the necessary dependencies

sudo apt update && sudo apt upgrade -y

sudo apt install curl tar wget clang pkg-config libssl-dev jq build-essential git make ncdu -y

Install GO 1.19.1

ver="1.19.1"

cd $HOME

wget "https://golang.org/dl/go$ver.linux-amd64.tar.gz"

sudo rm -rf /usr/local/go

sudo tar -C /usr/local -xzf "go$ver.linux-amd64.tar.gz"

rm "go$ver.linux-amd64.tar.gz"

Add the /usr/local/go/bin directory to the $PATH:

echo "export PATH=$PATH:/usr/local/go/bin:$HOME/go/bin" >> $HOME/.bash_profile
source $HOME/.bash_profile

Installing the Celestia node

cd $HOME
rm -rf celestia-node
git clone https://github.com/celestiaorg/celestia-node.git
cd celestia-node/
git checkout tags/v0.6.0
make install
make cel-key

Init Light Node

celestia light init --p2p.network blockspacerace

Save Pharse

./cel-key list --node.type light --p2p.network blockspacerace

Create Services

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

[Service]
User=$USER
ExecStart=/usr/local/bin/celestia light start --core.ip https://rpc-blockspacerace.pops.one --core.rpc.port 26657 --core.grpc.port 9090 --keyring.accname my_celes_key --metrics.tls=false --metrics --metrics.endpoint otel.celestia.tools:4318 --gateway --gateway.addr localhost --gateway.port 26659 --p2p.network blockspacerace
Restart=on-failure
RestartSec=3
LimitNOFILE=4096

[Install]
WantedBy=multi-user.target
EOF

Start Services Celestia

systemctl enable celestia-lightd
systemctl start celestia-lightd

Chceck Logs

journalctl -u celestia-lightd.service -f

Retrieve Node ID celestia

AUTH_TOKEN=$(celestia light auth admin --p2p.network blockspacerace)

curl -X POST \
     -H "Authorization: Bearer $AUTH_TOKEN" \
     -H 'Content-Type: application/json' \
     -d '{"jsonrpc":"2.0","id":0,"method":"p2p.Info","params":[]}' \
     http://localhost:26658

your ID 12D3xxxxx Save

Explorer : https://tiascan.com/light-nodes

If you get a message header: not found, please try these steps:

  1. stop your light node
  2. go to .celestia-light-blockspacerace-0 directory
  3. delete /data folder, make sure you DO NOT delete the keys folder
  4. init your light node again
  5. start the light node

Delete Node

systemctl stop celestia-lightd
rm -rf /etc/systemd/system/celestia-lightd.service
rm -rf celestia-node
rm -rf .celestia-app
rm -rf .celestia-light-blockspacerace-0
rm -f $(which celestia-lightd)
rm -rf $HOME/.celestia-lightd
rm -rf $HOME/celestia-lightd