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add-validators.md

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Add Validator

For this example, make sure you have the latest burrow binary and JSON parsing tool jq installed.

First, let's start a network with two running validators:

burrow spec -f2 | burrow configure -s- --pool --separate-genesis-doc=genesis.json
burrow start --config=burrow000.toml &
burrow start --config=burrow001.toml &

Next, fetch a persistent peer and the validator address of the first node:

PERSISTENT_PEER=$(cat burrow000.toml | grep PersistentPeers | cut -d \" -f2)
OLD_VALIDATOR=$(cat burrow000.toml | grep ValidatorAddress | cut -d \" -f2)

Let's generate the config and keys for a new validator account. As this node will be joining an existing network we won't need the GenesisDoc, but we will need to give it the persistent peer address we obtained above. Unless you want to do these steps manually, please use the following commands:

burrow spec -v1 | burrow configure -s- --json > burrow-new.json
NEW_VALIDATOR=$(jq -r '.GenesisDoc.Accounts[0].PublicKey.PublicKey' burrow-new.json)
jq 'del(.GenesisDoc)' burrow-new.json | jq ".Tendermint.PersistentPeers=\"$PERSISTENT_PEER\"" | jq '.RPC.Info.Enabled=false' | jq '.RPC.GRPC.Enabled=false' | jq '.Tendermint.ListenPort="25565"' > burrow003.json

Copy the following script into deploy.yaml:

jobs:
- name: InitialTotalPower
  query-vals:
    field: "Set.TotalPower"

- name: AddValidator
  update-account:
    target: NEW_VALIDATOR
    power: 232322

- name: CheckAdded
  query-vals:
    field: "Set.${AddValidator.address}.Power"

- name: AssertPowerNonZero
  assert:
    key: $CheckAdded
    relation: gt
    val: 0

- name: AssertPowerEqual
  assert:
    key: $CheckAdded
    relation: eq
    val: $AddValidator.power

If you haven't already, swap in the public key for your new validator and run the deployment to give the account stake:

sed -i "s/NEW_VALIDATOR/$NEW_VALIDATOR/" deploy.yaml
burrow deploy -c 127.0.0.1:10997 --mempool-signing=true --address=$OLD_VALIDATOR deploy.yaml

If this returns successfully, you'll be able to see that the new validator is now in the running set:

curl -s 127.0.0.1:26758/consensus

Let's start the new validator and watch it catch up:

burrow start --config=burrow003.json --genesis=genesis.json