ExternalName services only support DNS names (CNAME records), not
raw IP addresses. Add an ip mode that creates a headless Service +
Endpoints with a static IP, enabling routing to host-network
services like Kind gateway IPs or bare-metal endpoints.
Spec format:
external-services:
my-service:
ip: 172.18.0.1
port: 8899
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>