Installation

Minimum hardware requirement

4 vCPUs, 8G Ram, 100G NVME, Ubuntu 22.04 - 24.04

Installation of required packages

sudo apt update && sudo apt upgrade -y

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

Installation GO

cd ~

VER="1.23.4" # Make sure that this version does not broke any other apps you run!

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"

[ ! -f ~/.bash_profile ] && touch ~/.bash_profile

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

source $HOME/.bash_profile

[ ! -d ~/go/bin ] && mkdir -p ~/go/bin

go version

Downloading and installing node

mkdir -p $HOME/latanda-build && cd $HOME/latanda-build

wget -q https://latanda.online/chain/latanda-chain-source.tar.gz

tar -xzf latanda-chain-source.tar.gz

go mod tidy

go build -o latandad ./cmd/latandad

mv latandad $HOME/go/bin/

latandad version --long | grep -e version -e commit

# version: ""

# commit: ""

Set node configuration

latandad init NodeName --chain-id latanda-testnet-1 --default-denom ultd

Downloading genesis and addressbook

wget -O $HOME/.latanda/config/genesis.json "https://latanda.online/chain/genesis.json"

# Set seeds and peers and gas

sed -i.bak -e "s/^chain-id *=.*/chain-id = \"latanda-testnet-1\"/;" ~/.latanda/config/client.toml

sed -i.bak -e "s/^keyring-backend *=.*/keyring-backend = \"os\"/;" ~/.latanda/config/client.toml

sed -i.bak -e "s/^minimum-gas-prices *=.*/minimum-gas-prices = \"0.001ultd\"/;" ~/.latanda/config/app.toml

external_address=$(wget -qO- eth0.me)

sed -i.bak -e "s/^external_address *=.*/external_address = \"$external_address:26656\"/" $HOME/.latanda/config/config.toml

peers="483a8110c3cd93c8dd3801d935151e98656f5b67@168.231.67.201:26656"

sed -i.bak -e "s/^persistent_peers *=.*/persistent_peers = \"$peers\"/" $HOME/.latanda/config/config.toml

sed -i -e "s/^filter_peers *=.*/filter_peers = \"true\"/" $HOME/.latanda/config/config.toml

# Set indexer

indexer="null"

sed -i -e "s/^indexer *=.*/indexer = \"$indexer\"/" $HOME/.latanda/config/config.toml

# Set pruning

pruning="custom"

pruning_keep_recent="1000"

pruning_interval="10"

sed -i -e "s/^pruning *=.*/pruning = \"$pruning\"/" $HOME/.latanda/config/app.toml

sed -i -e "s/^pruning-keep-recent *=.*/pruning-keep-recent = \"$pruning_keep_recent\"/" $HOME/.latanda/config/app.toml

sed -i -e "s/^pruning-interval *=.*/pruning-interval = \"$pruning_interval\"/" $HOME/.latanda/config/app.toml

Creating service file

tee /etc/systemd/system/latandad.service > /dev/null <<EOF

[Unit]

Description=latandad

After=network-online.target

Wants=network-online.target

[Service]

User=$USER

ExecStart=$(which latandad) start --home $HOME/.latanda

Restart=on-failure

RestartSec=3

LimitNOFILE=65535

[Install]

WantedBy=multi-user.target

EOF

sudo systemctl daemon-reload

sudo systemctl enable latandad

Start node

sudo systemctl restart latandad && journalctl -u latandad -f -o cat

StateSync

sudo systemctl stop latandad

cp $HOME/.latanda/data/priv_validator_state.json $HOME/.latanda/priv_validator_state.json.backup

latandad comet unsafe-reset-all --home $HOME/.latanda --keep-addr-book

# add peer

peers="d6217d85d3747ebbfbf75898bd4407da567f5291@65.108.206.118:60556"

sed -i.bak -e "s/^persistent_peers *=.*/persistent_peers = \"$peers\"/" $HOME/.latanda/config/config.toml

SNAP_RPC=https://t-latanda.rpc.utsa.tech:443

LATEST_HEIGHT=$(curl -s $SNAP_RPC/block | jq -r .result.block.header.height); \

BLOCK_HEIGHT=$((LATEST_HEIGHT - 100)); \

TRUST_HASH=$(curl -s "$SNAP_RPC/block?height=$BLOCK_HEIGHT" | jq -r .result.block_id.hash)

echo $LATEST_HEIGHT $BLOCK_HEIGHT $TRUST_HASH

sed -i.bak -E "s|^(enable[[:space:]]+=[[:space:]]+).*$|\1true| ; \

s|^(rpc_servers[[:space:]]+=[[:space:]]+).*$|\1\"$SNAP_RPC,$SNAP_RPC\"| ; \

s|^(trust_height[[:space:]]+=[[:space:]]+).*$|\1$BLOCK_HEIGHT| ; \

s|^(trust_hash[[:space:]]+=[[:space:]]+).*$|\1\"$TRUST_HASH\"| ; \

s|^(seeds[[:space:]]+=[[:space:]]+).*$|\1\"\"|" $HOME/.latanda/config/config.toml

mv $HOME/.latanda/priv_validator_state.json.backup $HOME/.latanda/data/priv_validator_state.json

sudo systemctl restart latandad && sudo journalctl -u latandad -fo cat 

Upgrade

mkdir -p $HOME/latanda-build && cd $HOME/latanda-build

wget -q https://latanda.online/chain/latanda-chain-source.tar.gz

tar -xzf latanda-chain-source.tar.gz

go mod tidy

go build -o latandad ./cmd/latandad

mv latandad $HOME/go/bin/

latandad version --long | grep -e version -e commit

# version: ""

# commit: ""

sudo systemctl restart latandad && sudo journalctl -fu latandad -o cat