Setup Full Node

How To Join Secret Network as a Full Node on Testnet

This document details how to join the Secret Network testnet as a full node. Once your full node is running, you can turn it into a validator in the optional last step.

Requirements

Secret Network has strict Hardware Requirements. If your machine does not meet them, it will *NOT* work as a node.

• Ubuntu/Debian host (with ZFS or LVM to be able to add more storage easily)

• A public IP address

• Open ports TCP 26656 & 26657 Note: If you're behind a router or firewall then you'll need to port forward on the network device.

• Reading Tendermint: Running in production

• RPC address of an already active node. You can use http://bootstrap.pulsar3.scrtlabs.com:26657, or any other node that exposes RPC services. Alternate RPC nodes available in the API Registry.

• Install SGX

Installation

Install SGX and secretd

This guide assumes you've already installed the latest version of secretd and SGX. To setup an archive node, you must follow the Archive Nodes instructions.

For more information on SGX, see instructions for SGX Installation and Verifying SGX. See Node Registration Information if you'd like a more comprehensive overview on what's happening in these steps.

Initialize Secret Network Configs

Choose a moniker for yourself, and replace <MONIKER> with your moniker below. This moniker will serve as your public nickname in the network.

secretd init <MONIKER> --chain-id pulsar-3

This will generate the following files in ~/.secretd/config/

• genesis.json

• node_key.json

• priv_validator_key.json

Download genesis.json

The genesis file is how other nodes on the network know what network you should be on.

curl https://rpc.pulsar.scrttestnet.com/genesis | jq '.result.genesis' > ~/.secretd/config/genesis.json
# verify genesis.json checksum
echo "adb91d0ee8cb5da80ef47e0b13d42b89bba003063542054d67522e52ddb4f514 $HOME/.secretd/config/genesis.json" | sha256sum --check

Initialize Secret Enclave

Initialize /opt/secret/.sgx_secrets:

mkdir -p /opt/secret/.sgx_secrets

You can choose between two methods, 3a (automatic) or 3b (manual):

Initialize Secret Enclave - Automatic Registration (EXPERIMENTAL)

WARNING: This method is experimental, and may not work. If it doesn't work, skip to step 3b.

The following commands will create the necessary environment variables and attempt to automatically register the node.

export SCRT_ENCLAVE_DIR=/usr/lib
export SCRT_SGX_STORAGE=/opt/secret/.sgx_secrets
secretd auto-register --pulsar

If this step was successful, you can skip straight to Optimization.

Initialize Secret Enclave - Manual Registration

secretd init-enclave

Verify Enclave Initialization

Attestation certificate should have been created by the previous step

ls -lh /opt/secret/.sgx_secrets/attestation_combined.bin

Verify the certificate is valid. A 64 character registration key will be printed if it was successful.

PUBLIC_KEY=$(secretd dump /opt/secret/.sgx_secrets/pubkey.bin)
echo $PUBLIC_KEY

Configure secretd

The following steps should use secretd be ran on the full node itself. To run the steps with secretd on a local machine, set up the CLI there.

Configure secretd. Initially you'll be using the bootstrap node, as you'll need to connect to a running node and your own node is not running yet.

secretd config set client chain-id pulsar-3
secretd config set client node https://rpc.pulsar.scrttestnet.com
secretd config set client output json

Fund Secret Wallet

If you already have a wallet funded with SCRT, you can import the wallet by doing the following:

secretd keys add <key-alias> --recover

Otherwise, you will need to set up a key. Make sure you back up the mnemonic and the keyring password.

secretd keys add <key-alias>

This will output your address, a 45 character-string starting with secret1.... Copy/paste it to get some test-SCRT from the faucet. Continue when you have confirmed your account has some test-SCRT in it.

Configure Node Attestation

1. Register your node on-chain

secretd tx register auth /opt/secret/.sgx_secrets/attestation_combined.bin -y --gas 700000 --from <key-alias>

2. Pull & check your node's encrypted seed from the network

SEED=$(secretd query register seed $PUBLIC_KEY | cut -c 3-)
echo $SEED

3. Get additional network parameters

These are necessary to configure the node before it starts.

secretd query register secret-network-params
ls -lh ./io-master-key.txt ./node-master-key.txt

Configure Your Secret Node

From here on, commands must be ran on the full node.

mkdir -p ~/.secretd/.node
secretd configure-secret node-master-key.txt $SEED

Add Seeds And Persistent Peers To Configuration File.

# seeds
perl -i -pe 's/seeds = ""/seeds = "07234140a165b470846fe995951401a8db88dd36\@bootstrap.pulsar3.scrtlabs.com:26656,b5d1bb9194c6148367b64586d6bc0128866fc646\@212.7.211.39:26656,a3c9c415fe6b46babd16f000c7dbd4d94be6e450\@178.162.151.73:26656,c088b57ebc7b2cfa2ec99e8b4ffef90bead96b47\@185.56.139.84:26656"/' ~/.secretd/config/config.toml

# persistent_peers
perl -i -pe 's/persistent_peers = ""/persistent_peers = "07234140a165b470846fe995951401a8db88dd36\@bootstrap.pulsar3.scrtlabs.com:26656,b5d1bb9194c6148367b64586d6bc0128866fc646\@212.7.211.39:26656,a3c9c415fe6b46babd16f000c7dbd4d94be6e450\@178.162.151.73:26656,c088b57ebc7b2cfa2ec99e8b4ffef90bead96b47\@185.56.139.84:26656"/' ~/.secretd/config/config.toml

Optimization

In order to be able to handle NFT minting and other Secret Contract-heavy operations, it's recommended to update your SGX memory enclave cache:

sed -i.bak -e "s/^contract-memory-enclave-cache-size *=.*/contract-memory-enclave-cache-size = \"15\"/" ~/.secretd/config/app.toml

Also checkout this document by [ block pane ] for fine tuning your machine for better uptime.

Set minimum-gas-price Parameter

We recommend 0.0125uscrt per gas unit:

perl -i -pe 's/^minimum-gas-prices = .+?$/minimum-gas-prices = "0.0125uscrt"/' ~/.secretd/config/app.toml

Your node will not accept transactions that specify --fees lower than the minimun-gas-price you set here.

Enable secret-node:

Note that the secret-node system file is created when installing sgx.

sudo systemctl enable secret-node

You are now a now ready to finally sync the full node. 🎉.

Go to Testnet State Sync to continue.

Get Node ID

secretd tendermint show-node-id

And publish yourself as a node with this ID:

<your-node-id>@<your-public-ip>:26656

Be sure to point your CLI to your running node instead of the bootstrap node

secretcli config node tcp://localhost:26657

If someone wants to add you as a peer, have them add the above address to their persistent_peers in their ~/.secretd/config/config.toml.

And if someone wants to use your node from their secretcli then have them run:

secretcli config set client chain-id pulsar-3
secretcli config set client output json
secretcli config set client indent true
secretcli config set client node tcp://<your-public-ip>:26657

State Sync

You can skip syncing from scratch or download a snapshot by State Syncing to the current block.

Optional: Become a Validator

To turn your full node into a validator, see Join Testnet as a Validator.