railiance-infra/ansible/roles/base/defaults/main.yml

---
# Base role defaults.

# When false, this role will not enable or rewrite UFW. Use that for hosts
# whose live packet filter is not UFW (CoulombCore: iptables INPUT DROP with
# a Plesk-era accept list). Enabling UFW there is an availability decision,
# not a side effect of an unrelated converge.
ufw_manage: true

# Source addresses permitted to reach the k3s API (6443/tcp).
#
# WHY THIS EXISTS
# ---------------
# The k3s API was originally opened to Anywhere by this role, and the source
# restriction was later added by hand on the live host. That left the declared
# config WEAKER than reality: re-running this role would have removed the
# restriction and exposed the Kubernetes API to the internet. Found 2026-08-11.
#
# Operator addresses rotate (dynamic ISP leases). An allowlist is a treadmill:
# each rotation is either an outage or a stale grant to whoever the ISP
# reassigns the address to. RAIL-HO-WP-0009-T04 therefore keeps this list
# empty. Reach the API over the ops-bridge SSH tunnel
# (`k3s-api-railiance01`, local port 16444; `k3s-api-coulombcore`, 16443).
# See docs/adr/ADR-005-k3s-api-tunnel-only.md.
#
# Deliberately empty by default. A host that sets no sources gets NO public
# access to 6443 — which is the safe failure. SSH (22) is unaffected, so a host
# converged with an empty list is always recoverable.
#
# Each entry, if any:
#   - address: "203.0.113.10"
#     comment: "k3s-api-operator-workstation"
k3s_api_allowed_sources: []

# Source addresses whose k3s API access must be REMOVED on convergence.
# Move an address here when it stops being yours (or when the public
# allowlist is retired); convergence then prunes it.
k3s_api_revoked_sources: []

# Source addresses permitted to send Flannel VXLAN (8472/udp).
#
# Empty by default. A single-node cluster does not need a public VXLAN
# grant; adding an unrestricted 8472/udp allow would expose the pod network
# to injection. Set this to the other nodes' addresses only when the cluster
# becomes multi-node (RAIL-BS-WP-0007 / ThreePhoenix HA).
#
# Each entry:
#   - address: "203.0.113.20"
#     comment: "flannel-vxlan-peer"
flannel_vxlan_allowed_sources: []

# Extra UFW allows that are not k3s. Used for provider agents that must stay
# reachable (HostEurope Nydus on 2224/tcp). Empty by default so a Hetzner
# host does not inherit a HostEurope-only hole.
#
# Each entry:
#   - port: "2224"
#     proto: tcp
#     comment: "nydus-ex-api dashboard agent"
ufw_extra_allowed: []

# Ports 80/443 are separate from generic exceptions. They stay empty for a new
# reef unless the controller supplies reef_declaration_path and that source
# declaration carries exact ADR-0008 substrate grants.
public_web_ports: []
reef_declaration_path: ""