# Run Validator Node

## Prerequisites

- [ansible](playbooks/README.md#ansible-installation)
- [laconic-so](https://github.com/cerc-io/stack-orchestrator/?tab=readme-ov-file#install)

## Setup Node

- Get your private key from testnet deployment:

  ```bash
  laconic-so deployment --dir <testnet-deployment-dir> exec laconicd "laconicd keys export <key-name> --unarmored-hex --unsafe"
  ```

  NOTE: Store this key securely as it is needed in later steps

- Stop the node for SAPO testnet:

  ```bash
  laconic-so deployment --dir <testnet-deployment-dir> stop
  ```

- Fetch the stack:

  ```bash
  laconic-so fetch-stack git.vdb.to/cerc-io/laconicd-stack --git-ssh --pull
  ```

  This command clones the entire repository into the `~/cerc` folder, which includes the genesis file published by the first validator.

- Copy the example variables file:

  ```bash
  cp ~/cerc/laconicd-stack/playbooks/validator/validator-vars.example.yml ~/cerc/laconicd-stack/playbooks/validator/validator-vars.yml
  ```

- Update `~/cerc/laconicd-stack/playbooks/validator/validator-vars.yml` with required values:

  ```bash
  # Set custom moniker for the node
  cerc_moniker: "<your-moniker>"

  # Set persistent peers (comma-separated list of node IDs and addresses)
  # You can find the list of available peers in https://git.vdb.to/cerc-io/laconicd-stack/src/branch/main/node-addresses.yml
  cerc_peers: "<node-id>@<node-host>:26656,<node-id>@<node-host>:26656"
  ```

- Export the data directory and mainnet deployment directory as environment variables:

  ```bash
  # Parent directory where the deployment directory will live
  export DATA_DIRECTORY=

  # Set mainnet deployment directory
  # for eg: mainnet-laconicd-deployment
  export MAINNET_DEPLOYMENT_DIR=
  ```

- Run ansible playbook to set up your validator node deployment:

  ```bash
  ansible-playbook -i localhost, -c local ~/cerc/laconicd-stack/playbooks/validator/setup-validator.yml
  ```

### Setup TMKMS (Optional but Recommended)

<!-- Reference: https://docs.osmosis.zone/osmosis-core/keys/tmkms/#setup-tmkms -->

- For integrating existing TMKMS with laconicd, follow steps below in the machine where TMKMS is setup

- Set `$TMKMS_HOME` to the directory path containing TMKMS config files

  ```bash
  # Contents of tmkms config directory
  ls -l $TMKMS_HOME
  drwxrwxr-x 2 ... schema
  drwx------ 2 ... secrets
  drwxrwxr-x 2 ... state
  -rw-rw-r-- 1 ... tmkms.toml
  ```

- Update the TMKMS configuration file `$TMKMS_HOME/tmkms.toml`:
  ```toml
  [[chain]]
  id = "laconic-mainnet"
  key_format = { type = "cosmos-json", account_key_prefix = "laconicpub", consensus_key_prefix = "laconicvalconspub" }
  # Replace <TMKMS_HOME> with absolute path to tmkms config directory
  state_file = "<TMKMS_HOME>/state/priv_validator_state.json"

  [[validator]]
  chain_id = "laconic-mainnet"
  # Replace <NODE_IP> with actual IP address of the laconicd node
  addr = "tcp://<NODE_IP>:26659"
  # Replace <TMKMS_HOME> with absolute path to tmkms config directory
  secret_key = "<TMKMS_HOME>/secrets/kms-identity.key"
  protocol_version = "v0.34"
  reconnect = true

  [[providers.softsign]]
  key_type = "consensus"
  # Replace <TMKMS_HOME> with absolute path to tmkms config directory
  path = "<TMKMS_HOME>/secrets/priv_validator_key"
  chain_ids = ["laconic-mainnet"]
  ```

- Copy your validator key to TMKMS:

  - The validator key in laconicd node deployment is present at `$DATA_DIRECTORY/$MAINNET_DEPLOYMENT_DIR/data/laconicd-data/config/priv_validator_key.json`

  - Place the validator key file in TMKMS config directory at `$TMKMS_HOME/secrets/`

  - Import the private validator key into tmkms:
    
    ```bash
    tmkms softsign import $TMKMS_HOME/secrets/priv_validator_key.json $TMKMS_HOME/secrets/priv_validator_key
    ```
  
  - Remove the JSON key file
    
    ```bash
    rm $TMKMS_HOME/secrets/priv_validator_key.json
    ```

- Start TMKMS:
  ```bash
  tmkms start --config $TMKMS_HOME/tmkms.toml
  ```

- Enable TMKMS in the laconicd node configuration:
  ```bash
  # Set TMKMS_ENABLED to true in the node's config.env
  echo "TMKMS_ENABLED=true" >> $DATA_DIRECTORY/$MAINNET_DEPLOYMENT_DIR/config.env
  ```

## Start Node

- Start the laconicd node:
  ```bash
  laconic-so deployment --dir $DATA_DIRECTORY/$MAINNET_DEPLOYMENT_DIR start
  ```

- Check logs to ensure that node is running:
  ```bash
  laconic-so deployment --dir $DATA_DIRECTORY/$MAINNET_DEPLOYMENT_DIR logs laconicd -f
  ```

## Create Validator

- Export required env vars:

  ```bash
  # Use the private key of the existing account that was exported in previous steps
  export PVT_KEY=<private-key-in-hex-format>

  # desired key name
  export KEY_NAME=<key-name>

  export DATA_DIRECTORY=<data-directory>
  export MAINNET_DEPLOYMENT_DIR=<mainnet-deployment-dir>
  ```

- Run ansible playbook to create validator on running chain:

  ```bash
  ansible-playbook -i localhost, -c local ~/cerc/laconicd-stack/playbooks/validator/create-validator.yml
  ```

- Check the validator list:

  ```bash
  laconic-so deployment --dir $DATA_DIRECTORY/$MAINNET_DEPLOYMENT_DIR exec laconicd 'laconicd query staking validators'
  ```

- If TMKMS has been configured, remove the validator key from node deployment as it is no longer required:
  ```bash
  rm $DATA_DIRECTORY/$MAINNET_DEPLOYMENT_DIR/data/laconicd-data/config/priv_validator_key.json
  ```

  NOTE: Store it safely offline in case of an emergency

## Register Your Node

- Get your node's address:

  ```bash
  laconic-so deployment --dir $DATA_DIRECTORY/$MAINNET_DEPLOYMENT_DIR exec laconicd 'echo $(laconicd cometbft show-node-id)@YOUR_PUBLIC_IP_ADDRESS:26656'
  ```

- Add your node's address to the `~/cerc/laconicd-stack/node-addresses.yml` file

- Submit a PR to add your node address to the repository