Lodestar Setup a Lodestar validator client
Create a service user for the validator service, as this improves security, then create data directories.
Copy sudo adduser --system --no-create-home --group validator
sudo mkdir -p /var/lib/lodestar/validators
Import your validator keys by importing your keystore file . Be sure to enter your keystore password correctly.
Copy cd /usr/local/bin/lodestar
sudo ./lodestar validator import \
--network goerli \
--dataDir= "/var/lib/lodestar/validators" \
--keystore=$HOME/staking-deposit-cli/validator_keys
WARNING: Do not import your validator keys into multiple validator clients and run them at the same time, or you might get slashed. If moving validators to a new setup or different validator client, ensure deletion of the previous validator keys before continuing.
Verify that your keystore file was imported successfully.
Copy sudo ./lodestar validator list \
--network goerli \
--dataDir= "/var/lib/lodestar/validators"
Once successful, you will be shown your validator's public key .
For example, 0x8d9138fcf5676e2031dc4eae30a2c92e3306903eeec83ca83f4f851afbd4cb3b33f710e6f4ac516b4598697b30b04302
Setup ownership permissions, including hardening the access to this directory.
Copy sudo chown -R validator:validator /var/lib/lodestar/validators
sudo chmod 700 /var/lib/lodestar/validators
Create a systemd unit file to define your validator.service
configuration.
Copy sudo nano /etc/systemd/system/validator.service
Paste the following configuration into the file.
Copy [Unit]
Description = Lodestar Validator Client service for Goerli
Wants = network-online.target
After = network-online.target
Documentation = https://www.coincashew.com
[Service]
Type = simple
User = validator
Group = validator
Restart = on-failure
RestartSec = 3
KillSignal = SIGINT
TimeoutStopSec = 300
WorkingDirectory = /usr/local/bin/lodestar
ExecStart = /usr/local/bin/lodestar/lodestar validator \
--network goerli \
--dataDir /var/lib/lodestar/validators \
--graffiti "" \
--suggestedFeeRecipient < 0x_CHANGE_THIS_TO_MY_ETH_FEE_RECIPIENT_ADDRES S >
[Install]
WantedBy = multi-user.target
Replace**<0x_CHANGE_THIS_TO_MY_ETH_FEE_RECIPIENT_ADDRESS>
** with your own Ethereum address that you control. Tips are sent to this address and are immediately spendable.
If you wish to customize a graffiti message that is included when you produce a block, add your message between the double quotes after --graffiti
.
To exit and save, press Ctrl
+ X
, then Y
, then Enter
.
Run the following to enable auto-start at boot time.
Copy sudo systemctl daemon-reload
sudo systemctl enable validator
Finally, start your validator client and check it's status.
Copy sudo systemctl start validator
sudo systemctl status validator
Check your logs to confirm that the validator clients are up and functioning.
Copy sudo journalctl -fu validator | ccze
For example when using 2 validators, logs will show the following:
Copy info: 100% of local keystores imported. current= 2 total= 2 rate=975.61keys/m
info: 2 local keystores
info: 0x82b225f66476962b161ed015786df00a0b7b28231915e6d09e81ba8d5c4ae8502b6d5337e3bf101ad72741dc69f0a7cf
info: 0x95d39860a0d6ea3b92cba78069d21f3a987988f3b8417b14f0945353d79ed9e338bbe6e9d63d487abc044a710ce34866
Press Ctrl
+ C
to exit the logs.
Example of Synced Lodestar Validator Client Logs
Once the validator is active and proceeded through the validator activation queue, attestation messages will appear indicating successful attestations.
Notice the key words "info: Published attestations
".
Copy Feb-1 03:33:30.228 info: Published aggregateAndProofs slot=2662, index=13, count= 1
Feb-1 03:37:48.393 info: Published attestations slot=2699, index=20, count= 1
Feb-1 03:46:36.450 info: Published attestations slot=2713, index=2, count= 1
Feb-1 03:53:48.944 info: Published attestations slot=2765, index=21, count= 1
Feb-1 04:01:48.812 info: Published attestations slot=2809, index=17, count= 1