Terraform-Validator-04: Run Full Node

2021-04-10

SPECIAL NOTICE: TERRA HAS FALLEN

You should already be terrauser here… (sudo su - terrauser)

Initialize terrad

This command builds out default config files in ~/.terrad

terrad init --chain-id $NETWORK $MONIKER
  • NETWORK: tequila-0004, columbus-4, etc
  • MONIKER: The public facing name you want to give your Validator. RnodeC
rm -rf .terrad/data
ln -s /terradata/${NETWORK}/data .terrad/data

Download address book and genesis file for this network

Address book has contact info (ip address) for all currently participating nodes in this network. Saves the node the trouble of building this out on its own. Genesis file is the root of all blocks - pretty important for validating current state.

rm -f .terrad/config/genesis.json
wget -q $GENESISFILE -O .terrad/config/genesis.json

rm -f .terrad/config/addrbook.json
wget -q $ADDRBOOK -O .terrad/config/addrbook.json

IF THIS IS A VALIDATOR…

Remember that our validator should never see the outside world - the idea is that it only would ever communicate with the sentries. So to do this, we need to just make a few configuration changes to ~/.terrad/config/config.toml. Specifically, we need to set:

pex = false

persistent_peers = <list of sentries>
  • The format for a “peer” is <nodeid>@<ip>:<port>. nodeid can be found per node by running terrad tendermint show-node-id
addr_book_strict = false

Here are the configuration changes to ~/.terrad/config/app.toml that need to be set for the validator:

MAINNET GAS:

minimum-gas-prices = "0.01133uluna,0.15uusd,0.104938usdr,169.77ukrw,428.571umnt,0.125ueur,0.98ucny,16.37ujpy,0.11ugbp,10.88uinr,0.19ucad,0.14uchf,0.19uaud,0.2usgd,4.62uthb"

Also, we need to make sure that this validator is using the correct signing key. The two files of interest are ~/.terrad/config/priv_validator_key.json and ~/.terrad/config/node_key.json. There can only be one signing key for your validator. If this is first time setting up, then the one you got is ok.

Wherever you securely keep these files, just make sure they are in place on this validator node.

Reference: https://forum.cosmos.network/t/sentry-node-architecture-overview/454

IF THIS IS A SENTRY…

Our sentries on the other hand have public IPs and are seeing very much of the outside world. Here are the configuration changes to ~/.terrad/config/config.toml that need to be set for sentries:

pex = true

persistent_peers = <validator node, optionally other sentry nodes>
  • The format for a “peer” is <nodeid>@<ip>:<port>. nodeid can be found per node by running terrad tendermint show-node-id
addr_book_strict = false

private_peer_ids	<validator node>
  • The format for a “peer” is <nodeid>@<ip>:<port>. nodeid can be found per node by running terrad tendermint show-node-id

MAINNET SEEDS:

seeds = "87048bf71526fb92d73733ba3ddb79b7a83ca11e@public-seed.terra.dev:26656,b5205baf1d52b6f91afb0da7d7b33dcebc71755f@public-seed2.terra.dev:26656,5fa582d7c9931e5be8c02069d7b7b243c79d25bf@seed.terra.de-light.io:26656"

Here are the configuration changes to ~/.terrad/config/app.toml that need to be set for sentries:

MAINNET GAS:

minimum-gas-prices = "0.01133uluna,0.15uusd,0.104938usdr,169.77ukrw,428.571umnt,0.125ueur,0.98ucny,16.37ujpy,0.11ugbp,10.88uinr,0.19ucad,0.14uchf,0.19uaud,0.2usgd,4.62uthb"

Reference: https://forum.cosmos.network/t/sentry-node-architecture-overview/454

Start up node

sudo systemctl start terrad
sudo systemctl start lcd

Tags: #terra