sjat
f83d68d7a0
Adds base__mesh_coordinator_pin (default empty = no-op). When set + base__mesh_enabled, a lineinfile task writes "<ip> <fqdn>" to /etc/hosts so a managed mesh host survives a local-DNS hiccup (the 2026-06-18 incident class). FQDN derived from base__mesh_management_url via regex_replace (no community.general). Gated on base__mesh_enabled | bool and pin length; the coordinator host (askari/offsite_hosts) stays exempt. Production pin wired for ubongo (77.42.120.136). Molecule dns_servers fix included (Docker/NetBird DNS incompatibility). Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
59 lines
3.7 KiB
YAML
59 lines
3.7 KiB
YAML
---
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# Host firewall (nftables) behaviour knobs. Shared topology (firewall_catalog/
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# firewall_zones) lives in group_vars/all, not here. See docs/decisions/020-firewall.md.
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base__firewall_mgmt_interface: wt0 # SSH accepted only on this iface (NetBird, ADR-016)
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base__firewall_control_addr: "" # control-node LAN address (ubongo); SSH allowed from it
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# as the guaranteed-management-plane `ssh-from-control`
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# source (ADR-021). Empty = no rule. Set in group_vars
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# once ubongo exists.
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base__firewall_ssh_port: 22
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base__firewall_rollback_timeout: 45 # seconds before the auto-revert fires on a bad apply
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base__firewall_confirm_timeout: 20 # seconds to re-establish a fresh connection post-apply
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base__firewall_dropin_dir: /etc/nftables.d
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base__firewall_apply: true # set false to render+validate without applying (CI/Molecule)
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base__firewall_input_only: false # true → the forward chain is `policy accept` (host-local
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# INPUT filtering only). For hosts that forward/route
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# container or NAT traffic (the control node's Docker +
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# libvirt-NAT) where a forward default-deny would break
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# them. Real service hosts keep this false (forward drop).
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base__firewall_admin_addrs: [] # extra LAN source IPs allowed to SSH, besides wt0 +
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# ssh-from-control. For an operator workstation reaching
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# the host over the LAN (no mesh). Key-gated. (ADR-021)
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# SSH hardening + fail2ban (ADR-002) — `hardening` concern.
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base__ssh_password_authentication: "no"
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base__ssh_permit_root_login: "no"
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base__fail2ban_maxretry: 5
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base__fail2ban_bantime: 1h
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base__fail2ban_findtime: 10m
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# base__ssh_authorised_keys lives in group_vars/all/vars.yml (per-person control keys).
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base__ssh_authorised_keys: []
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# SSH listen-on-mesh (mesh-hardening 1/3, ADR-016/021). Opt-in: when true, sshd binds
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# ListenAddress to this host's mesh IP only (not the WAN). The IP comes from the live wt0
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# fact (ansible_facts.wt0.ipv4.address); base__ssh_listen_addr overrides it. ip_nonlocal_bind
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# lets sshd bind the mesh IP before wt0 exists at boot. Fails closed: the play asserts a
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# non-empty address rather than silently listening on all interfaces.
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base__ssh_listen_mesh_only: false
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base__ssh_listen_addr: ""
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# The automation/AI-worker user granted passwordless sudo (ADR-015 amended / ADR-021).
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# Empty = no AI-worker sudo. Set per-group (e.g. group_vars/control: claude). The user's
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# password should be locked so NOPASSWD is its only sudo path; actions are auditd-attributed.
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base__ai_worker_user: ""
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# NetBird mesh agent enrollment (ADR-016). Opt-in: default off so applying `base` to a
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# host not on the mesh is a no-op for this concern. The live actions (apt install over
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# the network, `netbird up` against the coordinator) are additionally gated by
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# base__mesh_manage so Molecule can exercise the wiring without a coordinator.
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base__mesh_enabled: false
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base__mesh_manage: true
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base__mesh_management_url: "https://netbird.askari.wingu.me"
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base__mesh_setup_key: "{{ vault.netbird.setup_key }}"
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base__mesh_version: "0.72.4" # match the coordinator; exact apt pin confirmed on-host at deploy
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# DNS-resilience (ADR-016 availability / accepted-risk R8): when set to the coordinator's
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# stable IP, pin the coordinator FQDN (derived from base__mesh_management_url) in /etc/hosts
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# so a managed mesh host survives a local-DNS hiccup (the 2026-06-18 incident class). Empty
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# = no pin. The coordinator host itself (askari/offsite_hosts) is exempt — leave it empty.
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base__mesh_coordinator_pin: ""
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