Replica parameter

[imomo86]

I tried to set the number of replicas in the Helm chart, but it seems the external-dns chart is hardcoded to run with a single pod. Is there a specific reason for this design choice, or was it simply overlooked and a replicaCount value was never added?

[uozalp]

@imomo86 external-dns is typically run as a single replica to avoid race conditions and conflicting DNS updates. Since it continuously watches resources and reconciles DNS records, running multiple instances without proper leader election can result in duplicate or competing changes being sent to the DNS provider.