# Namada Dry Run - IBC Relayer w/Osmosis Node

## This is a quick guide to set up an IBC relayer with existing channels between a Namada Dry Run fullnode and an Osmosis fullnode

### IBC Setup: https://docs.namada.net/operators/ibc


### Settings
export CHAIN_ID="namada-dryrun.abaaeaf7b78cb3ac"
export BASE_DIR="/root/.local/share/namada"

export CHAIN_A_ID="$CHAIN_ID"
export CHAIN_A_CHANNEL_ID="channel-1"
export CHAIN_A_KEY_NAME="relayer-namada"
export CHAIN_A_CLIENT_ID="07-tendermint-1" ######### spork @ Knowable: the clients already exist from when i made the channel

export CHAIN_B_ID="osmosis-1" ### Osmosis mainnet
export CHAIN_B_CHANNEL_ID="channel-86536"
export CHAIN_B_KEY_NAME="relayer-osmosis"
export CHAIN_B_CLIENT_ID="07-tendermint-3352" ### spork @ Knowable: the clients already exist from when i made the channel

export HERMES_CONFIG="$HOME/.hermes/config.toml"
export TAG="v1.10.4-namada-beta17-rc2" ### check the tags here: https://github.com/heliaxdev/hermes/releases
export ARCH="x86_64-unknown-linux-gnu" ### or "aarch64-apple-darwin"


### Relayer Wallets
 namadaw --pre-genesis derive --alias $CHAIN_A_KEY_NAME
 echo "put your seed here" > $BASE_DIR/$CHAIN_B_ID-$CHAIN_B_KEY_NAME-mnmem.txt


### open the RPC port on the Namada Dry Run node
sed -i 's/127.0.0.1:26657/0.0.0.0:26657/g' $BASE_DIR/$CHAIN_ID/config.toml
sed -i 's/127.0.0.1:26657/0.0.0.0:26657/g' $BASE_DIR/$CHAIN_ID/cometbft/config/config.toml

### check your work
find $HOME/.local/ -type f -iname '*.toml' | xargs grep -rns '26657'

### restart the node
sudo systemctl restart namada-node



### install hermes
rm -rf /tmp/hermes.tar.gz
curl -Lo /tmp/hermes.tar.gz https://github.com/heliaxdev/hermes/releases/download/${TAG}/hermes-${TAG}-${ARCH}.tar.gz
sudo tar -xvzf /tmp/hermes.tar.gz -C /usr/local/bin

### check version
hermes -V
    ### hermes 1.10.3+a046312



### Set up a Namada Dry Run fullnode
### config binaries
  ### set custom configs server
  export NAMADA_NETWORK_CONFIGS_SERVER="https://testnet.namada-dryrun.tududes.com/configs"
  
### join network
### if your base_dir is not $HOME/.local/share/namada adjust this command accordingly
namadac utils join-network --chain-id namada-dryrun.abaaeaf7b78cb3ac

### add persistent peer (adjust for base_dir if needed)
sed -i \
's###persistent_peers = ".*"###persistent_peers = "'\
'tcp://05309c2cce2d163027a47c662066907e89cd6b99@74.50.93.254:26656,'\
'tcp://2bf5cdd25975c239e8feb68153d69c5eec004fdb@64.118.250.82:46656,'\
'tcp://75825cae136729aaf519ad62684b9b796c5593fd@138.197.133.118:26656"###' \
$HOME/.local/share/namada/namada-dryrun.abaaeaf7b78cb3ac/config.toml

### set up service template to run as a service
journalctl -fu namada-node



### Set up an Osmosis fullnode on mainnet
curl -sL https://get.osmosis.zone/install > i.py && python3 i.py
### 1 across the board and also 1 to cosmovisor as it will self-maintain as the chain upgrades
### 1 to default pruning and 1 for using the snapshot

### Open the RPC port on the Osmosis mainnet node
sed -i 's#127.0.0.1:26657#0.0.0.0:26657#g' $HOME/.osmosisd/config/config.toml
sed -i 's#grpc_laddr = ""#grpc_laddr = "tcp://0.0.0.0:9097"#g' $HOME/.osmosisd/config/config.toml

### open the firewall for rpc and grpc ports
sudo ufw allow 26657
sudo ufw allow 9097

### restart the node
sudo systemctl restart cosmovisor && journalctl -fu cosmovisor

### test the ports
curl http://your.osmo.node.ip:26657
curl http://your.osmo.node.ip:9097



### Configuration that resides on the Namada Dry Run node
### https://docs.namada.net/operators/ibc###installing-hermes

mkdir -p $(dirname $HERMES_CONFIG)
sudo cat <<EOL > "$HERMES_CONFIG"
[global]
log_level = 'debug'

[mode]

[mode.clients]
enabled = true
refresh = true
misbehaviour = false

[mode.connections]
enabled = false

[mode.channels]
enabled = false

[mode.packets]
enabled = true
clear_interval = 30
clear_on_start = true
tx_confirmation = true

[rest]
enabled = false
host = '0.0.0.0'
port = 3000

[telemetry]
enabled = true
host = '0.0.0.0'
port = 3005


[[chains]]
id = 'namada-dryrun.abaaeaf7b78cb3ac'
type = 'Namada'
rpc_addr = 'http://127.0.0.1:26657'
grpc_addr = 'http://127.0.0.1:9097' ### not used
event_source = { mode = 'push', url = 'ws://127.0.0.1:26657/websocket', batch_delay = '500ms' }
account_prefix = ''
key_name = '$CHAIN_A_KEY_NAME'
store_prefix = 'ibc'
###trusting_period = '1100s'
trusting_period = '14000s'
gas_price = { price = 0.000001, denom = 'tnam1q9gr66cvu4hrzm0sd5kmlnjje82gs3xlfg3v6nu7' }
gas_multiplier = 1.75
max_gas = 650000
rpc_timeout = '60s'
memo_prefix = 'Dryrun relayer'

[chains.packet_filter]
policy = 'allow'
list = [['transfer', '$CHAIN_A_CHANNEL_ID']]


[[chains]]
id = 'osmosis-1'
type = 'CosmosSdk'
rpc_addr = 'http://your.osmo.node.ip:26657'
grpc_addr = 'http://your.osmo.node.ip:9097'
###event_source = { mode = 'push', url = 'wss://osmosis-rpc.polkachu.com/websocket', batch_delay = '500ms' }
event_source = { mode = 'push', url = 'ws://your.osmo.node.ip:26657/websocket', batch_delay = '500ms' }
rpc_timeout = '60s'
account_prefix = 'osmo'
key_name = '$CHAIN_B_KEY_NAME'
store_prefix = 'ibc'
default_gas = 5000000
max_gas = 15000000
gas_price = { price = 0.005, denom = 'uosmo' }
gas_multiplier = 1.75
max_msg_num = 30
max_tx_size = 800000
clock_drift = '5s'
max_block_time = '30s'
trusting_period = '12days'
ccv_consumer_chain = false
sequential_batch_tx = false
memo_prefix = 'Dryrun relayer'

[chains.packet_filter]
policy = 'allow'
list = [['transfer', '$CHAIN_B_CHANNEL_ID']]
EOL



### CHAIN A: add the key to the hermes config
hermes --config $HERMES_CONFIG keys add --chain $CHAIN_A_ID --key-file $BASE_DIR/pre-genesis/wallet.toml --overwrite

### CHAIN B: add they key to the hermes config using a mnemonic
hermes --config $HERMES_CONFIG keys add --chain $CHAIN_B_ID --mnemonic-file $BASE_DIR/$CHAIN_B_ID-$CHAIN_B_KEY_NAME-mnmem.txt --overwrite


### test the connection

### A quick script that installs grpcurl if it's not already installed.
if ! command -v grpcurl &>/dev/null; then
    wget https://github.com/fullstorydev/grpcurl/releases/download/v1.8.7/grpcurl_1.8.7_linux_x86_64.tar.gz
    sha=$(shasum -a 256 grpcurl_1.8.7_linux_x86_64.tar.gz | awk '{ print $1 }')
    [ "$sha" != "b50a9c9cdbabab03c0460a7218eab4a954913d696b4d69ffb720f42d869dbdd5" ] && echo "shasum mismatch" && exit 1
    tar -xvf grpcurl_1.8.7_linux_x86_64.tar.gz
    chmod +x grpcurl
    ./grpcurl -version
    sudo mv grpcurl /usr/local/bin
fi

### try a working one
grpcurl grpc-t.cosmos.nodestake.org:443 list

### try ours
grpcurl -plaintext your.osmo.node.ip:9097 list


### Update the clients
hermes update client --host-chain $CHAIN_A_ID --client $CHAIN_A_CLIENT_ID
hermes update client --host-chain $CHAIN_B_ID --client $CHAIN_B_CLIENT_ID



### make a cron for this
export IBC_CHANNEL_KEEP_ALIVE_SCRIPT="$HOME/namada-osmosis-keepalive.sh"
cat <<EOL > "$IBC_CHANNEL_KEEP_ALIVE_SCRIPT"
###!/bin/bash
export CHAIN_A_ID="$CHAIN_A_ID"
export CHAIN_A_CLIENT_ID="$CHAIN_A_CLIENT_ID"
export CHAIN_B_ID="$CHAIN_B_ID"
export CHAIN_B_CLIENT_ID="$CHAIN_B_CLIENT_ID"
hermes update client --host-chain $CHAIN_A_ID --client $CHAIN_A_CLIENT_ID
hermes update client --host-chain $CHAIN_B_ID --client $CHAIN_B_CLIENT_ID
sleep 3
hermes health-check
hermes config validate
EOL

### make it executable
sudo chmod +x $IBC_CHANNEL_KEEP_ALIVE_SCRIPT

### test the script
$IBC_CHANNEL_KEEP_ALIVE_SCRIPT

### add it to cron
(crontab -l 2>/dev/null; echo "*/15 * * * * $IBC_CHANNEL_KEEP_ALIVE_SCRIPT") | crontab -

### set up a service for hermes







### prepare the namada validator service
export SERVICE_FILE="/lib/systemd/system/namada-hermes-ibc.service"

sudo cat <<EOL > "$SERVICE_FILE"
[Unit]
Description=Namada Hermes IBC

[Service]
User=root
Group=root

LimitNPROC=1048576
LimitNOFILE=1048576

WorkingDirectory=$HOME
ExecStart=/usr/local/bin/hermes --config $HERMES_CONFIG start

###Restart=on-failure
Restart=always
RestartSec=3s

StandardOutput=journal
StandardError=journal
SyslogIdentifier=namada-hermes-ibc

[Install]
WantedBy=multi-user.target
Alias=namada-hermes-ibc.service
EOL

### save the file and exit
### enable the service
sudo systemctl enable namada-hermes-ibc.service
sudo systemctl daemon-reload

### start and watch the service in one go
sudo systemctl start namada-hermes-ibc && journalctl -fu namada-hermes-ibc