Cardano node - rotate KES key

cardano-node-cert-rotate-kes.sh

#!/bin/bash
# check zip in xxx
# usage:
#   ./rotate-kes.sh \
#       /path-to/kes.vkey \
#       /path-to/cold.skey \
#       /path-to/cold.counter

if [ -z "$1" ]
  then
    echo "Please provide kes.vkey"
    exit 1
fi

if [ -z "$2" ]
  then
    echo "Please provide cold.skey"
    exit 1
fi

if [ -z "$3" ]
  then
    echo "Please provide cold.counter"
    exit 1
fi

KES_VKEY=$1
COLD_SKEY=$2
COLD_COUNTER=$3

SLOT_PER_KES=`cat mainnet-shelley-genesis.json | jq '.slotsPerKESPeriod'`
CURR_SLOT=`cardano-cli query tip --mainnet | jq '.slot'`
KES_PERIOD=$((CURR_SLOT/SLOT_PER_KES))
echo "Current period $KES_PERIOD"

cardano-cli node issue-op-cert \
    --kes-verification-key-file $KES_VKEY \
    --cold-signing-key-file $COLD_SKEY\
    --operational-certificate-issue-counter $COLD_COUNTER \
    --kes-period $KES_PERIOD \
    --out-file node.cert

echo "Done!! Check your node.cert file"
echo "Remember to delete cold key files"
exit 1