# Quadlet network: private bridge for open-webui (rootless).
#
# Install path on dankclaw: ~/.config/containers/systemd/open-webui.network
# Unit name: open-webui-network.service (podman network name: systemd-open-webui)
#
# Why a bridge instead of slirp4netns (2026-08-22 incident):
# slirp4netns runs a user-space helper process per container. When that
# helper died, the container kept running but lost its tap interface,
# becoming a zombie that accepted TCP and reset every request. chat
# served empty responses for ~2 days and nothing logged an error.
# A kernel bridge has no per-container helper, so the failure mode
# cannot occur.
#
# The subnet is pinned so the container's own IP (10.89.3.2) is
# deterministic. Note the LLM backend is NOT reached via this gateway:
# the gateway lives in the rootless netns, while llama-server runs in
# the host netns. The host's LAN IP (192.168.0.143) reaches it through
# the rootless NAT. host.containers.internal is a slirp4netns-only name
# and does not resolve on a bridge.
#
# Subnet registry on dankclaw (rootless):
#   10.88.0.0/16  default "podman" bridge
#   10.89.0.0/24  gitea (systemd-gitea)
#   10.89.1.0/24  compose stack (dankclaw_default)
#   10.89.2.0/24  searxng (systemd-searxng)
#   10.89.3.0/24  open-webui (systemd-open-webui)  <- this file

[Network]
Driver=bridge
Subnet=10.89.3.0/24
Gateway=10.89.3.1