## Why
kea-dhcp4 crash-loops on a cold container start: the HA hook resolves the StatefulSet peer URL hostnames once at config load, but the peer DNS records are not resolvable in the first moment of a fresh container, and kea exits hard instead of retrying (HA_CONFIGURATION_FAILED / "Failed to convert string to address"). Once DNS is warm the exact config validates, so the failure is purely a startup race.
## How
- gate the dhcp4 entrypoint on `kea-dhcp4 -t` and retry until the config validates before exec'ing the server
unkinben