Incident 2026-06-17: applying base's nftables default-deny (forward policy drop)
to askari — a Docker host — broke container forwarding/NAT on reboot, and the
wt0-only sshd ListenAddress left no break-glass (ip_nonlocal_bind did NOT beat
the boot race). Recovery: disable nftables + restart docker (restore the wiped
NAT masquerade) + force-recreate the coordinator (it FATAL-looped unable to
download its GeoLite2 DB with no egress) -> mesh re-formed.
Back out the enablement so a future deploy can't re-break askari:
- offsite_hosts: base__ssh_listen_mesh_only=false, base__firewall_apply=false
- remove host_vars/askari.yml (manage over the WAN again, not wt0)
- tf/offsite: re-open WAN :22 to ubongo only (break-glass; already applied)
askari now: sshd on all interfaces (Ansible-managed), nftables disabled, WAN :22
open -> stable + reboot-survivable. The base feature code (sshd ListenAddress
option, firewall public zone) stays; it's just not enabled on Docker hosts.
Mesh-hardening 1/3 to be re-spec'd before any retry.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
sjat
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