Ben Duncan cbbd81bc76 feat: DHCP pool mode — public IPs from router DHCP instead of static range ...

Adds source="dhcp" option to external pool config. When set, ExternalIPAM
obtains public IPs from the upstream router's DHCP server (via dhcpcd on
br-ext) instead of allocating from a static range_start..range_end.

The VM behavior is identical to static pool mode: private VPC IP from OVN
DHCP, public IP via DNAT+SNAT, full DescribeInstances support. The only
difference is where the public IP comes from.

Two separate DHCP conversations:
- Host ↔ Router DHCP (br-ext): "give me a public IP for this VM's NAT"
- VM ↔ OVN DHCP (br-int): "give me my private VPC IP"

Tested: DHCP pool mode on single-node (ben-banksia). VM got public IP
192.168.1.77 from router DHCP, SSH works, outbound internet works.

2026-03-25 10:53:29 +10:00

..

spinifex

feat: DHCP pool mode — public IPs from router DHCP instead of static range

2026-03-25 10:53:29 +10:00