💾Node Installation

Sommelier Mainnet guide

EXPLORER

• Minimum hardware requirements:

Node Type	CPU	RAM	Storage
Mainnet	8	16GB	250GB

1) Auto_install script

source <(curl -s https://raw.githubusercontent.com/111STAVR111/props/refs/heads/main/Sommelier/sommm)

2) Manual installation

Preparing the server

sudo apt update && sudo apt upgrade -y
sudo apt install curl tar wget clang pkg-config libssl-dev jq build-essential bsdmainutils git make ncdu gcc git jq chrony liblz4-tool -y

GO 1.21.6

ver="1.21.6"
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$ver.linux-amd64.tar.gz"
echo "export PATH=$PATH:/usr/local/go/bin:$HOME/go/bin" >> $HOME/.bash_profile
source $HOME/.bash_profile
go version

Build 04.02.25

cd $HOME && mkdir -p go/bin/
git clone https://github.com/PeggyJV/sommelier
cd sommelier
git checkout v9.0.1
make install

sommelier version --long | grep -e commit -e version

• version: v9.0.1

• commit: a447cc590e2da9fe2592787c5e828429aa14705a

Initiation

sommelier init STAVR_guide --chain-id=sommelier-3
sommelier config chain-id sommelier-3

Create/recover wallet

sommelier keys add <walletname>
           OR
sommelier keys add <walletname> --recover

Download Addrbook and Genesis

wget -O $HOME/.sommelier/config/addrbook.json "https://server-1.stavr.tech/Mainnet/Sommelier/addrbook.json"
wget -O $HOME/.sommelier/config/genesis.json "https://server-1.stavr.tech/Mainnet/Sommelier/genesis.json"

sha256sum $HOME/.sommelier/config/genesis.json

• 68e918e6ee379ec86f6907e8a75ce7958f2c7e7a6addc635dd048f65b6c6c8a8

Set up the minimum gas price and Peers/Seeds/Filter peers/MaxPeers

sed -i.bak -e "s/^minimum-gas-prices *=.*/minimum-gas-prices = \"0usomm\"/;" $HOME/.sommelier/config/app.toml
sed -i -e "s/^filter_peers *=.*/filter_peers = \"true\"/" $HOME/.sommelier/config/config.toml
external_address=$(wget -qO- eth0.me) 
sed -i.bak -e "s/^external_address *=.*/external_address = \"$external_address:26656\"/" $HOME/.sommelier/config/config.toml
peers=""
sed -i.bak -e "s/^persistent_peers *=.*/persistent_peers = \"$peers\"/" $HOME/.sommelier/config/config.toml
seeds=""
sed -i.bak -e "s/^seeds =.*/seeds = \"$seeds\"/" $HOME/.sommelier/config/config.toml
sed -i 's/max_num_inbound_peers =.*/max_num_inbound_peers = 50/g' $HOME/.sommelier/config/config.toml
sed -i 's/max_num_outbound_peers =.*/max_num_outbound_peers = 10/g' $HOME/.sommelier/config/config.toml

Pruning (optional)

pruning="custom"
pruning_keep_recent="1000"
pruning_keep_every="0"
pruning_interval="10"
sed -i -e "s/^pruning *=.*/pruning = \"$pruning\"/" $HOME/.sommelier/config/app.toml
sed -i -e "s/^pruning-keep-recent *=.*/pruning-keep-recent = \"$pruning_keep_recent\"/" $HOME/.sommelier/config/app.toml
sed -i -e "s/^pruning-keep-every *=.*/pruning-keep-every = \"$pruning_keep_every\"/" $HOME/.sommelier/config/app.toml
sed -i -e "s/^pruning-interval *=.*/pruning-interval = \"$pruning_interval\"/" $HOME/.sommelier/config/app.toml

Indexer (optional)

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

Create a service file

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

[Service]
User=$USER
ExecStart=$(which sommelier) start
Restart=on-failure
RestartSec=3
LimitNOFILE=65535

[Install]
WantedBy=multi-user.target
EOF

StateSync Sommelier Mainnet

systemctl stop sommelier
SNAP_RPC=https://somm.rpc.m.stavr.tech:443
LATEST_HEIGHT=$(curl -s $SNAP_RPC/block | jq -r .result.block.header.height); \
BLOCK_HEIGHT=$((LATEST_HEIGHT - 1000)); \
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/.sommelier/config/config.toml
sommelier tendermint unsafe-reset-all --home /root/.sommelier
wget -O $HOME/.sommelier/config/addrbook.json "https://server-1.stavr.tech/Mainnet/Sommelier/addrbook.json"
sudo systemctl restart sommelier && journalctl -fu sommelier -o cat

SnapShot Mainnet updated every 5 hours

You can check the size and time of snapshot creation with this command curl -sI https://server-1.stavr.tech/Mainnet/Sommelier/som-snap-1.tar.lz4 | grep "last" && curl -sI https://server-1.stavr.tech/Mainnet/Sommelier/som-snap-1.tar.lz4 | grep content-length | awk '{printf "%.2f GB\n", $2/1024/1024/1024}'

cd $HOME
apt install lz4
sudo systemctl stop sommelier
cp $HOME/.sommelier/data/priv_validator_state.json $HOME/.sommelier/priv_validator_state.json.backup
rm -rf $HOME/.sommelier/data
LATEST_SNAPSHOT=$(curl -s https://server-1.stavr.tech/Mainnet/Sommelier/ | grep -oE 'som-snap-[0-9]+\.tar\.lz4' | while read SNAPSHOT; do HEIGHT=$(curl -s "https://server-1.stavr.tech/Mainnet/Sommelier/${SNAPSHOT%.tar.lz4}-info.txt" | awk '/Block height:/ {print $3}'); echo "$SNAPSHOT $HEIGHT"; done | sort -k2 -nr | head -n 1 | awk '{print $1}')
curl -o - -L https://server-1.stavr.tech/Mainnet/Sommelier/$LATEST_SNAPSHOT | lz4 -c -d - | tar -x -C $HOME/.sommelier
mv $HOME/.sommelier/priv_validator_state.json.backup $HOME/.sommelier/data/priv_validator_state.json
wget -O $HOME/.sommelier/config/addrbook.json "https://server-1.stavr.tech/Mainnet/Sommelier/addrbook.json"
sudo systemctl restart sommelier && journalctl -fu sommelier -o cat

Start

sudo systemctl daemon-reload
sudo systemctl enable sommelier 
sudo systemctl restart sommelier && sudo journalctl -fu sommelier -o cat

Create validator

sommelier tx staking create-validator \
--commission-rate 0.1 \
--commission-max-rate 1 \
--commission-max-change-rate 1 \
--min-self-delegation "1" \
--amount 1000000usomm \
--pubkey $(sommelier tendermint show-validator) \
--from <wallet> \
--moniker="STAVR_guide" \
--chain-id sommelier-3 \
--gas 300000 \
--identity="" \
--website="" \
--details="" -y

🧩Services and Tools🧩

Monitoring

You can set up your node status alarm here - Monitoring

Security

You can create secure management of your wallet and your node by following this links.

TMKMS Wallet Security

Delete node

sudo systemctl stop sommelier
sudo systemctl disable sommelier
rm /etc/systemd/system/sommelier.service
sudo systemctl daemon-reload
cd $HOME
rm -rf sommelier
rm -rf .sommelier
rm -rf $(which sommelier)