How do I manually synchronize DNSSEC keys in a DNS cluster?

Introduction

There may be times when you may wish to manually synchronize the DNSSEC keys across a DNS cluster. This article explains how to do that.

Procedure

Use the /scripts/dnssec-cluster-keys script to synchronize the keys. Here is the script's help menu:

[root@server]# /scripts/dnssec-cluster-keys --help

NAME
    dnssec-cluster-keys

SYNOPSIS
     dnssec-cluster-keys [--sync|--revoke] [--zone=] [--tag=] {--nolocal} {--rebuild-cache}

     Options:
        --sync              Action to sync keys to the cluster.
        --revoke            Action to revoke keys from the cluster.
        --zone              Required. The zone to take action on.
        --tag               Required for revoke. Optional for sync.
                            If not defined during a sync, all active keys will be used
                            Multiple tags can be defined.
        --nolocal           Optional. Do not perform the action on the local server.
                            Useful for testing.
        --rebuild-cache     Rebuild the local cache of domains with DNSSEC enabled.

     Examples:

     Sync all currently active DNSSEC keys:
     ./dnssec-cluster-keys --sync --zone=example.zone

     Sync only specific DNSSEC keys. If any of the keys are disabled locally, they will be enabled.
     ./dnssec-cluster-keys --sync --zone=example.zone --tag=46547 --tag=31016 --tag=44233

     Revoke specific DNSSEC keys from the cluster. WARNING: This will delete the keys locally also.
     ./dnssec-cluster-keys --revoke --zone=example.zone --tag=46547 --tag=31016 --tag=44233

     Revoke a DNSSEC key from the cluster, but keep the local copy.
     ./dnssec-cluster-keys --revoke --zone=example.zone --tag=12345 --nolocal

DESCRIPTION
    This script is used to manage DNSSEC keys in a cPanel cluster. You must be
    using PowerDNS as a nameserver, cPanel DNS clustering must be enabled, and
    have root privileges. This script provides two actions, sync and revoke.