Chain ID	Latest Version Tag	Custom Port
agamotto	v0.3.1-rc1	150

Setup validator name

Replace YOUR_MONIKER_GOES_HERE with your validator name

MONIKER="YOUR_MONIKER_GOES_HERE"

Install dependencies

Update system and install build tools

sudo apt -q update
sudo apt -qy install curl git jq lz4 build-essential
sudo apt -qy upgrade

Install Go

sudo rm -rf /usr/local/go
curl -Ls https://go.dev/dl/go1.19.13.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)

Download and build binaries

# Clone project repository
cd $HOME
rm -rf ojo
git clone https://github.com/ojo-network/ojo.git
cd ojo
git checkout v0.3.1-rc1

# Build binaries
make build

# Prepare binaries for Cosmovisor
mkdir -p $HOME/.ojo/cosmovisor/genesis/bin
mv build/ojod $HOME/.ojo/cosmovisor/genesis/bin/
rm -rf build

# Create application symlinks
sudo ln -s $HOME/.ojo/cosmovisor/genesis $HOME/.ojo/cosmovisor/current -f
sudo ln -s $HOME/.ojo/cosmovisor/current/bin/ojod /usr/local/bin/ojod -f

Install Cosmovisor and create a service

# Download and install Cosmovisor
go install cosmossdk.io/tools/cosmovisor/cmd/cosmovisor@v1.5.0

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

[Service]
User=$USER
ExecStart=$(which cosmovisor) run start
Restart=on-failure
RestartSec=10
LimitNOFILE=65535
Environment="DAEMON_HOME=$HOME/.ojo"
Environment="DAEMON_NAME=ojod"
Environment="UNSAFE_SKIP_BACKUP=true"
Environment="PATH=/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/usr/games:/usr/local/games:/snap/bin:$HOME/.ojo/cosmovisor/current/bin"

[Install]
WantedBy=multi-user.target
EOF
sudo systemctl daemon-reload
sudo systemctl enable ojo.service

Initialize the node

# Set node configuration
ojod config chain-id agamotto
ojod config keyring-backend test
ojod config node tcp://localhost:15057

# Initialize the node
ojod init $MONIKER --chain-id agamotto

# Download genesis and addrbook
curl -Ls https://snapshots.kjnodes.com/ojo-testnet/genesis.json > $HOME/.ojo/config/genesis.json
curl -Ls https://snapshots.kjnodes.com/ojo-testnet/addrbook.json > $HOME/.ojo/config/addrbook.json

# Add seeds
sed -i -e "s|^seeds *=.*|seeds = \"3f472746f46493309650e5a033076689996c8881@ojo-testnet.rpc.kjnodes.com:15059\"|" $HOME/.ojo/config/config.toml

# Set minimum gas price
sed -i -e "s|^minimum-gas-prices *=.*|minimum-gas-prices = \"0uojo\"|" $HOME/.ojo/config/app.toml

# Set pruning
sed -i \
  -e 's|^pruning *=.*|pruning = "custom"|' \
  -e 's|^pruning-keep-recent *=.*|pruning-keep-recent = "100"|' \
  -e 's|^pruning-keep-every *=.*|pruning-keep-every = "0"|' \
  -e 's|^pruning-interval *=.*|pruning-interval = "19"|' \
  $HOME/.ojo/config/app.toml

# Set custom ports
sed -i -e "s%^proxy_app = \"tcp://127.0.0.1:26658\"%proxy_app = \"tcp://127.0.0.1:15058\"%; s%^laddr = \"tcp://127.0.0.1:26657\"%laddr = \"tcp://127.0.0.1:15057\"%; s%^pprof_laddr = \"localhost:6060\"%pprof_laddr = \"localhost:15060\"%; s%^laddr = \"tcp://0.0.0.0:26656\"%laddr = \"tcp://0.0.0.0:15056\"%; s%^prometheus_listen_addr = \":26660\"%prometheus_listen_addr = \":15066\"%" $HOME/.ojo/config/config.toml
sed -i -e "s%^address = \"tcp://0.0.0.0:1317\"%address = \"tcp://0.0.0.0:15017\"%; s%^address = \":8080\"%address = \":15080\"%; s%^address = \"0.0.0.0:9090\"%address = \"0.0.0.0:15090\"%; s%^address = \"0.0.0.0:9091\"%address = \"0.0.0.0:15091\"%; s%:8545%:15045%; s%:8546%:15046%; s%:6065%:15065%" $HOME/.ojo/config/app.toml

Download latest chain snapshot

curl -L https://snapshots.kjnodes.com/ojo-testnet/snapshot_latest.tar.lz4 | tar -Ilz4 -xf - -C $HOME/.ojo
[[ -f $HOME/.ojo/data/upgrade-info.json ]] && cp $HOME/.ojo/data/upgrade-info.json $HOME/.ojo/cosmovisor/genesis/upgrade-info.json

Start service and check the logs

sudo systemctl start ojo.service && sudo journalctl -u ojo.service -f --no-hostname -o cat

Set up Price Feeder

To run pricefeeder you validator should be in active set. Otherwise price feeder will not vote on periods.

Install the pricefeeder binary and create directory for pricefeeder configuration

cd $HOME && rm price-feeder -rf
git clone https://github.com/ojo-network/price-feeder
cd price-feeder
git checkout v0.1.8-rc1
make build
sudo mv ./build/price-feeder /usr/local/bin
rm $HOME/.ojo-price-feeder -rf
mkdir $HOME/.ojo-price-feeder
cp price-feeder.example.toml $HOME/.ojo-price-feeder/config.toml

Check price-feeder version

price-feeder version
# version: HEAD-5d46ed438d33d7904c0d947ebc6a3dd48ce0de59
# commit: 5d46ed438d33d7904c0d947ebc6a3dd48ce0de59

Create new wallet for pricefeeder and save 24 word mnemonic phrase

ojod keys add pricefeeder-wallet --keyring-backend os

Export keyring password

 export KEYRING_PASSWORD="PRICE_FEEDER_KEY_PASSWORD_GOES_HERE"

Set up variables

export KEYRING="os"
export LISTEN_PORT=7172
export RPC_PORT=15057
export GRPC_PORT=15090
export VALIDATOR_ADDRESS=$(ojod keys show wallet --bech val -a)
export MAIN_WALLET_ADDRESS=$(ojod keys show wallet -a)
export PRICEFEEDER_ADDRESS=$(echo -e $KEYRING_PASSWORD | ojod keys show pricefeeder-wallet --keyring-backend os -a)

Fund the pricefeeder-wallet with some testnet tokens

In order to make pricefeeder work, it needs some tokens to pay for transaction fees

This command will send 1 OJO to pricefeeder-wallet from your main wallet

ojod tx bank send wallet $PRICEFEEDER_ADDRESS 1000000uojo --from wallet --chain-id ojo-devnet --gas-adjustment 1.4 --gas auto --gas-prices 0uojo -y

Check the balance

ojod q bank balances $PRICEFEEDER_ADDRESS

Delegate pricefeeder responsibility

As a validator, if you’d like another account to post prices on your behalf (i.e. you don’t want your validator mnemonic sending txs), you can delegate pricefeeder responsibilities to another address.

ojod tx oracle delegate-feed-consent $MAIN_WALLET_ADDRESS $PRICEFEEDER_ADDRESS --from wallet --gas-adjustment 1.4 --gas auto --gas-prices 0uojo -y

Check linked pricefeeder address

ojod q oracle feeder-delegation $VALIDATOR_ADDRESS

Set pricefeeder configuration values

sed -i "s/^listen_addr *=.*/listen_addr = \"0.0.0.0:${LISTEN_PORT}\"/;\
s/^address *=.*/address = \"$PRICEFEEDER_ADDRESS\"/;\
s/^chain_id *=.*/chain_id = \"agamotto\"/;\
s/^validator *=.*/validator = \"$VALIDATOR_ADDRESS\"/;\
s/^backend *=.*/backend = \"$KEYRING\"/;\
s|^dir *=.*|dir = \"$HOME/.ojo\"|;\
s|^grpc_endpoint *=.*|grpc_endpoint = \"localhost:${GRPC_PORT}\"|;\
s|^tmrpc_endpoint *=.*|tmrpc_endpoint = \"http://localhost:${RPC_PORT}\"|;\
s|^global-labels *=.*|global-labels = [[\"chain_id\", \"agamotto\"]]|;\
s|^service-name *=.*|service-name = \"ojo-price-feeder\"|;" $HOME/.ojo-price-feeder/config.toml

Setup the systemd service

sudo tee /etc/systemd/system/ojo-price-feeder.service > /dev/null <<EOF
[Unit]
Description=Ojo Price Feeder
After=network-online.target

[Service]
User=$USER
ExecStart=$(which price-feeder) $HOME/.ojo-price-feeder/config.toml
Restart=on-failure
RestartSec=30
LimitNOFILE=65535
Environment="PRICE_FEEDER_PASS=$KEYRING_PASSWORD"

[Install]
WantedBy=multi-user.target
EOF

Register and start the systemd service

sudo systemctl daemon-reload
sudo systemctl enable ojo-price-feeder.service
sudo systemctl restart ojo-price-feeder.service

View pricefeeder logs

journalctl -fu ojo-price-feeder.service -o cat

Successfull Log examples:

10:30AM INF broadcasting vote exchange_rates=ATOM:11.449658317452328488,BNB:286.505174071110084991,CRO:0.069718618570227407,DAI:0.999872679370903845,ETH:1552.960176513619371601,IST:1.013970239583170325,OSMO:0.826831324620249729,UMEE:0.007902144939292575,USDC:0.999873169363824893,USDT:0.999851633546200939,WBTC:22001.354045277520185398,stATOM:12.378471944671440576,stOSMO:0.869546768297473244 feeder=ojo1akr5mgltsde7lke3cgxwf2pcug3rnyfy67dl6p module=oracle validator=ojovaloper1mfasrshu4k0wlksvgjyvahe7hz67sw4z0pst3f
10:30AM INF successfully broadcasted tx module=oracle_client tx_code=0 tx_hash=354B62AC58F370F6E866F019A7C14E93E456F6A1355AFE92B915DABCF4C89C86 tx_height=0
10:30AM INF broadcasting pre-vote feeder=ojo1akr5mgltsde7lke3cgxwf2pcug3rnyfy67dl6p hash=9fefb35d3499ce13339c37b65e5fa79b898c1d09 module=oracle validator=ojovaloper1mfasrshu4k0wlksvgjyvahe7hz67sw4z0pst3f
10:30AM INF successfully broadcasted tx module=oracle_client tx_code=0 tx_hash=8E918F16931972681A5CC8C1E0F3E082561D8899DD672D5FA6D943FC81E8179A tx_height=0
10:31AM INF skipping until next voting period current_vote_period=64750 module=oracle previous_vote_period=64750 vote_period=5
10:31AM INF skipping until next voting period current_vote_period=64750 module=oracle previous_vote_period=64750 vote_period=5

Also you can check that your pricefeeder-wallet is doing transactions on chain at Chain Explorer

Price Feeder Transactions

Useful commands

Check current voting windows progress

ojod q oracle slash-window

Check missed oracle votes per slashing window

ojod q oracle miss-counter $VALIDATOR_ADDRESS

Special thanks to mzonder#5844 and zoia queen#7436