🌪️Installation

Chain ID	Version	Custom Port
fiamma-testnet-1	v1.0.0	50

Official Documentation Recommended Hardware: 4 Cores, 32GB RAM, 1000GB of storage (NVME)

# install dependencies, if needed
sudo apt update && sudo apt upgrade -y
sudo apt install curl git wget htop tmux build-essential jq make lz4 gcc unzip -y

Node NameWalletPortPruningPruning Keep RecentPruning Interval

# install go, if needed
cd $HOME
VER="1.22.3"
wget "https://golang.org/dl/go$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

# set vars
echo "export WALLET="wallet"" >> $HOME/.bash_profile
echo "export MONIKER="test"" >> $HOME/.bash_profile
echo "export FIAMMA_CHAIN_ID="fiamma-testnet-1"" >> $HOME/.bash_profile
echo "export FIAMMA_PORT="50"" >> $HOME/.bash_profile
source $HOME/.bash_profile

# download binary
cd $HOME
rm -rf fiamma
git clone https://github.com/fiamma-chain/fiamma.git
cd fiamma
git checkout v1.0.0
make install

# config and init app
fiammad init $MONIKER --chain-id $FIAMMA_CHAIN_ID
sed -i -e "s|^node *=.*|node = \"tcp://localhost:${FIAMMA_PORT}657\"|" $HOME/.fiamma/config/client.toml
sed -i -e "s|^keyring-backend *=.*|keyring-backend = \"os\"|" $HOME/.fiamma/config/client.toml
sed -i -e "s|^chain-id *=.*|chain-id = \"fiamma-testnet-1\"|" $HOME/.fiamma/config/client.toml

# download genesis and addrbook
wget -O $HOME/.fiamma/config/genesis.json https://server-5.itrocket.net/testnet/fiamma/genesis.json
wget -O $HOME/.fiamma/config/addrbook.json  https://server-5.itrocket.net/testnet/fiamma/addrbook.json

# set seeds and peers
SEEDS="[e-mail]:50656"
PEERS="[e-mail]:49656,fd8af2419e8a1cd9198066809465cb11c63b5428@148.251.128.49:29656,2b706253a0261645233a8635ccc9c0b85d1d5e7a@62.169.26.93:26656,4f5efac1afd504f3b16fa79199965dfbc45880e3@[2a03:cfc0:8000:13::b910:27be]:14356,db875e2cb29c22752486422244c006ab13734149@46.4.91.76:29556,7432ffbe1d5c51501b45e95a9298c93a8cc18747@95.217.61.32:50656,e34b509c949526a24d6397dfaf4673b985cfa204@18.182.20.173:26656,1a0ff9e5c08df76b19556b50aff82ec6dfd5beee@65.109.53.24:45656,4a0bae4defde6cc60edf379b2a4d4dfe3f283b37@65.109.24.155:20156,7f607b5d6a5885888f65f219440c07867eee72ff@23.88.5.169:22656,40013c8ffeb34ddab5848fb84d292be45468b859@95.216.54.249:51656"
sed -i -e "/^\[p2p\]/,/^\[/{s/^[[:space:]]*seeds *=.*/seeds = \"$SEEDS\"/}" \
       -e "/^\[p2p\]/,/^\[/{s/^[[:space:]]*persistent_peers *=.*/persistent_peers = \"$PEERS\"/}" $HOME/.fiamma/config/config.toml

# set custom ports in app.toml
sed -i.bak -e "s%:1317%:${FIAMMA_PORT}317%g;
s%:8080%:${FIAMMA_PORT}080%g;
s%:9090%:${FIAMMA_PORT}090%g;
s%:9091%:${FIAMMA_PORT}091%g;
s%:8545%:${FIAMMA_PORT}545%g;
s%:8546%:${FIAMMA_PORT}546%g;
s%:6065%:${FIAMMA_PORT}065%g" $HOME/.fiamma/config/app.toml

# set custom ports in config.toml file
sed -i.bak -e "s%:26658%:${FIAMMA_PORT}658%g;
s%:26657%:${FIAMMA_PORT}657%g;
s%:6060%:${FIAMMA_PORT}060%g;
s%:26656%:${FIAMMA_PORT}656%g;
s%^external_address = \"\"%external_address = \"$(wget -qO- eth0.me):${FIAMMA_PORT}656\"%;
s%:26660%:${FIAMMA_PORT}660%g" $HOME/.fiamma/config/config.toml

# config pruning
sed -i -e "s/^pruning *=.*/pruning = \"custom\"/" $HOME/.fiamma/config/app.toml 
sed -i -e "s/^pruning-keep-recent *=.*/pruning-keep-recent = \"100\"/" $HOME/.fiamma/config/app.toml
sed -i -e "s/^pruning-interval *=.*/pruning-interval = \"19\"/" $HOME/.fiamma/config/app.toml

# set minimum gas price, enable prometheus and disable indexing
sed -i 's|minimum-gas-prices =.*|minimum-gas-prices = "0.00001ufia"|g' $HOME/.fiamma/config/app.toml
sed -i -e "s/prometheus = false/prometheus = true/" $HOME/.fiamma/config/config.toml
sed -i -e "s/^indexer *=.*/indexer = \"null\"/" $HOME/.fiamma/config/config.toml

# create service file
sudo tee /etc/systemd/system/fiammad.service > /dev/null <<EOF
[Unit]
Description=Fiamma node
After=network-online.target
[Service]
User=$USER
WorkingDirectory=$HOME/.fiamma
ExecStart=$(which fiammad) start --home $HOME/.fiamma
Restart=on-failure
RestartSec=5
LimitNOFILE=65535
[Install]
WantedBy=multi-user.target
EOF

# reset and download snapshot
fiammad tendermint unsafe-reset-all --home $HOME/.fiamma
if curl -s --head curl https://server-5.itrocket.net/testnet/fiamma/fiamma_2024-12-10_543036_snap.tar.lz4 | head -n 1 | grep "200" > /dev/null; then
  curl https://server-5.itrocket.net/testnet/fiamma/fiamma_2024-12-10_543036_snap.tar.lz4 | lz4 -dc - | tar -xf - -C $HOME/.fiamma
    else
  echo "no snapshot found"
fi

# enable and start service
sudo systemctl daemon-reload
sudo systemctl enable fiammad
sudo systemctl restart fiammad && sudo journalctl -u fiammad -fo cat

Automatic Installation

pruning: custom: 100/0/19 | indexer: null

source <(curl -s https://itrocket.net/api/testnet/fiamma/autoinstall/)

Create wallet

# to create a new wallet, use the following command. don’t forget to save the mnemonic
fiammad keys add $WALLET

# to restore exexuting wallet, use the following command
fiammad keys add $WALLET --recover

# save wallet and validator address
WALLET_ADDRESS=$(fiammad keys show $WALLET -a)
VALOPER_ADDRESS=$(fiammad keys show $WALLET --bech val -a)
echo "export WALLET_ADDRESS="$WALLET_ADDRESS >> $HOME/.bash_profile
echo "export VALOPER_ADDRESS="$VALOPER_ADDRESS >> $HOME/.bash_profile
source $HOME/.bash_profile

# check sync status, once your node is fully synced, the output from above will print "false"
fiammad status 2>&1 | jq 

# before creating a validator, you need to fund your wallet and check balance
fiammad query bank balances $WALLET_ADDRESS 

Node Sync Status Checker

#!/bin/bash
rpc_port=$(grep -m 1 -oP '^laddr = "\K[^"]+' "$HOME/.fiamma/config/config.toml" | cut -d ':' -f 3)
while true; do
  local_height=$(curl -s localhost:$rpc_port/status | jq -r '.result.sync_info.latest_block_height')
  network_height=$(curl -s https://fiamma-testnet-rpc.itrocket.net/status | jq -r '.result.sync_info.latest_block_height')

  if ! [[ "$local_height" =~ ^[0-9]+$ ]] || ! [[ "$network_height" =~ ^[0-9]+$ ]]; then
    echo -e "\033[1;31mError: Invalid block height data. Retrying...\033[0m"
    sleep 5
    continue
  fi

  blocks_left=$((network_height - local_height))
  if [ "$blocks_left" -lt 0 ]; then
    blocks_left=0
  fi

  echo -e "\033[1;33mNode Height:\033[1;34m $local_height\033[0m \033[1;33m| Network Height:\033[1;36m $network_height\033[0m \033[1;33m| Blocks Left:\033[1;31m $blocks_left\033[0m"

  sleep 5
done

Create validator

MonikerIdentityDetailsAmount, ufiaCommission rateCommission max rateCommission max change rateWebsite

cd $HOME
# Create validator.json file
echo "{\"pubkey\":{\"@type\":\"/cosmos.crypto.ed25519.PubKey\",\"key\":\"$(fiammad comet show-validator | grep -Po '\"key\":\s*\"\K[^"]*')\"},
    \"amount\": \"1000000ufia\",
    \"moniker\": \"test\",
    \"identity\": \"\",
    \"website\": \"\",
    \"security\": \"\",
    \"details\": \"I love blockchain ❤️\",
    \"commission-rate\": \"0.1\",
    \"commission-max-rate\": \"0.2\",
    \"commission-max-change-rate\": \"0.01\",
    \"min-self-delegation\": \"1\"
}" > validator.json
# Create a validator using the JSON configuration
fiammad tx staking create-validator validator.json \
    --from $WALLET \
    --chain-id fiamma-testnet-1 \
	--gas auto --gas-adjustment 1.5
	

Monitoring

If you want to have set up a monitoring and alert system use our cosmos nodes monitoring guide with tenderduty

Security

To protect you keys please don`t share your privkey, mnemonic and follow basic security rules

Set up ssh keys for authentication

You can use this guide to configure ssh authentication and disable password authentication on your server

Firewall security

Set the default to allow outgoing connections, deny all incoming, allow ssh and node p2p port

sudo ufw default allow outgoing 
sudo ufw default deny incoming 
sudo ufw allow ssh/tcp 
sudo ufw allow ${FIAMMA_PORT}656/tcp
sudo ufw enable

Delete node

sudo systemctl stop fiammad
sudo systemctl disable fiammad
sudo rm -rf /etc/systemd/system/fiammad.service
sudo rm $(which fiammad)
sudo rm -rf $HOME/.fiamma
sed -i "/FIAMMA_/d" $HOME/.bash_profile