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AirchainsExplorer

Endpoints | Genesis | Addrbook
Chain ID: junction Latest Version: v0.2.0 Custom Port: 137
Specify the name of your “MONIKER” (validator) which will be visible in the explorer
MONIKER="YOUR_MONIKER_NAME"

Update system and install tools

sudo apt update && sudo apt upgrade -y
sudo apt install curl build-essential git jq lz4 ncdu bashtop -y

Install GO

cd $HOME
version="1.23.3"
wget "https://golang.org/dl/go$version.linux-amd64.tar.gz"
sudo rm -rf /usr/local/go
sudo tar -C /usr/local -xzf "go$version.linux-amd64.tar.gz"
rm "go$version.linux-amd64.tar.gz"
echo "export PATH=$PATH:/usr/local/go/bin:$HOME/go/bin" >> $HOME/.bash_profile
source $HOME/.bash_profile

Install Cosmovisor

go install cosmossdk.io/tools/cosmovisor/cmd/cosmovisor@latest

Download and install

cd $HOME
wget -O junctiond https://github.com/airchains-network/junction/releases/download/v0.2.0/junctiond-linux-amd64
sudo chmod +x junctiond
sudo mv junctiond $HOME/go/bin
junctiond version --long | grep -e commit -e version

Config and Init node

# Set node configuration
junctiond config set client chain-id junction
junctiond config set client keyring-backend test
junctiond config set client node tcp://localhost:13757


# Initialize node
junctiond init $MONIKER --chain-id junction


# Download genesis and addrbook
curl -Ls https://snapshots.moonbridge.org/testnet/airchains/genesis.json > $HOME/.junction/config/genesis.json
curl -Ls https://snapshots.moonbridge.org/testnet/airchains/addrbook.json > $HOME/.junction/config/addrbook.json


# Set seeds and peers
SEEDS=""
PEERS=""
sed -i -e "s/^seeds *=.*/seeds = \"$SEEDS\"/; s/^persistent_peers *=.*/persistent_peers = \"$PEERS\"/" $HOME/.junction/config/config.toml


# Setting minimum gas price
sed -i -e "s|^minimum-gas-prices *=.*|minimum-gas-prices = \"0.001amf\"|" $HOME/.junction/config/app.toml


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


# Disable indexer
sed -i -e 's|^indexer *=.*|indexer = "null"|' $HOME/.junction/config/config.toml


# Enable Prometheus
sed -i -e "s/prometheus = false/prometheus = true/" $HOME/.junction/config/config.toml


# Setting custom ports
sed -i -e "s%^proxy_app = \"tcp://127.0.0.1:26658\"%proxy_app = \"tcp://127.0.0.1:13758\"%; s%^laddr = \"tcp://127.0.0.1:26657\"%laddr = \"tcp://0.0.0.0:13757\"%; s%^pprof_laddr = \"localhost:6060\"%pprof_laddr = \"localhost:13760\"%; s%^laddr = \"tcp://0.0.0.0:26656\"%laddr = \"tcp://0.0.0.0:13756\"%; s%^external_address = \"\"%external_address = \"$(wget -qO- eth0.me):13756\"%; s%^prometheus_listen_addr = \":26660\"%prometheus_listen_addr = \":13766\"%" $HOME/.junction/config/config.toml
sed -i -e "s%:1317%:13717%g; s%:8080%:13780%g; s%:9090%:13790%g; s%:9091%:13791%g; s%:8545%:13745%g; s%:8546%:13746%g; s%:6065%:13765%g" $HOME/.junction/config/app.toml

Configure Cosmovisor

mkdir -p $HOME/.junction/cosmovisor/genesis/bin
mkdir -p $HOME/.junction/cosmovisor/upgrades
cp $HOME/go/bin/junctiond $HOME/.junction/cosmovisor/genesis/bin/

Create service

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


[Service]
User=$USER
ExecStart=$(which cosmovisor) run start
Restart=always
RestartSec=5
LimitNOFILE=65535
Environment="DAEMON_NAME=junctiond"
Environment="DAEMON_HOME=$HOME/.junction"
Environment="UNSAFE_SKIP_BACKUP=true"
Environment="DAEMON_ALLOW_DOWNLOAD_BINARIES=false"
Environment="DAEMON_RESTART_AFTER_UPGRADE=true"


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

Download latest snapshot

curl -o - -L https://snapshots.moonbridge.org/testnet/airchains/snapshot_latest.tar.lz4 | lz4 -dc - | tar -x -C $HOME/.junction
[[ -f $HOME/.junction/data/upgrade-info.json ]] && cp $HOME/.junction/data/upgrade-info.json $HOME/.junction/cosmovisor/genesis/upgrade-info.json

Start service and check the logs

sudo systemctl start junctiond && sudo journalctl -u junctiond -f --no-hostname -o cat

Create wallet

junctiond keys add wallet

Check wallet balance

junctiond q bank balances $(junctiond keys show wallet -a)

Create a validator.json

Get pubkey

junctiond comet show-validator
cd $HOME/.junction/config
nano validator.json
{
  "pubkey": {"@type":"/cosmos.crypto.ed25519.PubKey","key":"lR1d7YBVK5jYijOfWVKRFoWCsS4dg3kagT7LB9GnG8I="},
  "amount": "1000000amf",
  "moniker": "YOUR_MONIKER_NAME",
  "identity": "YOUR_KEYBASE_ID",
  "details": "YOUR_DETAILS",
  "website": "YOUR_WEBSITE_URL",
  "security": "YOUR_EMAIL_ADDRESS",
  "commission-rate": "0.10",
  "commission-max-rate": "0.20",
  "commission-max-change-rate": "0.01",
  "min-self-delegation": "1"
}

Create validator

junctiond tx staking create-validator $HOME/.junction/config/validator.json \
  --from wallet \
  --chain-id junction \
  --fees 500amf \
  -y

Delete node

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