lava was created by hand without an ip_range, so any container could be
given Caddy's fixed IP (172.20.0.5). After a reboot the containers race
for the low addresses and Caddy often fails with "Address already in use".
- The docker role now creates lava as 172.20.0.0/16 with dynamic
addresses limited to 172.20.128.0/17, so 172.20.0.x is free for fixed
IPs, and warns if the network still has the old layout.
- Gitea gets fixed IP 172.20.0.6 once the network has the reserved range,
since its ufw-docker SSH rule points at its IP.
- ufw-docker allow rules for Caddy (80, 443) and Gitea SSH are managed by
the playbook and follow IP changes.
- migrate-lava-network.yml recreates the existing network once: it takes
down every compose project on lava (volumes kept), recreates the
network, and brings them back up, Caddy first.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
