- New NSDBackend: zone files + nsd-control reload, zone registration via
nsd.conf.d include file; mirrors BIND backend interface exactly
- BackendRegistry now supports type "nsd"; config defaults for nsd.zones_dir
and nsd.nsd_conf
- Dockerfile installs both NSD and BIND9 — entrypoint detects configured
backend type(s) and starts only the required daemon; CoreDNS MySQL
deployments start neither
- docker/nsd.conf: minimal NSD base config with remote-control and
zones.conf include
- entrypoint.sh: reads config file + env vars to determine which daemon
to start; runs nsd-control-setup on first boot
- 20 new NSD backend tests (117 total, all passing)
- README: Topology C (multi-instance + peer sync) documented as most robust
HA option; NSD config reference; updated topology comparison table;
NSD env-var-only compose examples; version 2.5.0
