Remove stale cloudflared service from copenhagen-a (PESO-138) (#125)

cloudflared was retired in #56 when Caddy + Authelia replaced Cloudflare
Tunnels, but copenhagen-a was unreachable at the time so its
cloudflared.service was never stopped and is still running.

Add a cleanup task to the common role that stops, disables and purges
cloudflared wherever the unit lingers. Gated on the unit file existing so
it self-targets copenhagen-a and is a no-op everywhere else, and explicitly
excludes copenhagen-c, which legitimately runs a hand-configured tunnel.

ansible/inventory/host_vars/london-b.yml

@@ -33,4 +33,7 @@ common_ufw_allowed_ports:
   - { port: 32400, proto: tcp, comment: "Plex Media Server" }
   - { port: 6881, proto: tcp, comment: "BitTorrent" }
   - { port: 6881, proto: udp, comment: "BitTorrent" }
-  - { port: 445, proto: tcp, comment: "Samba" }
+  # SMB is reachable over Tailscale via the tailscale0 allow-all rule; this
+  # entry additionally allows the local London LAN. Deliberately NOT open to
+  # the public internet (see PESO-145).
+  - { port: 445, proto: tcp, from_ip: "192.168.1.0/24", comment: "Samba (LAN only)" }

ansible/roles/common/handlers/main.yml

@@ -7,3 +7,7 @@
 - name: Reload ufw
   community.general.ufw:
     state: reloaded
+
+- name: Reload systemd daemon
+  ansible.builtin.systemd:
+    daemon_reload: true

ansible/roles/common/tasks/main.yml

@@ -99,6 +99,7 @@
     rule: allow
     port: "{{ item.port | string }}"
     proto: "{{ item.proto | default('tcp') }}"
+    from_ip: "{{ item.from_ip | default(omit) }}"
     comment: "{{ item.comment | default(omit) }}"
   loop: "{{ common_ufw_allowed_ports }}"
   when:
@@ -106,7 +107,58 @@
     - common_ufw_allowed_ports | length > 0
   notify: Reload ufw
 
+# When a port is restricted to a source (from_ip), make sure the older
+# unrestricted "allow from anywhere" variant of the same rule isn't left
+# lingering on the host — UFW keeps it otherwise, which would defeat the
+# source restriction. Deleting an absent rule is a no-op, so this is safe
+# on hosts that never had the broad rule.
+- name: Remove superseded world-open rules for source-restricted ports
+  community.general.ufw:
+    rule: allow
+    port: "{{ item.port | string }}"
+    proto: "{{ item.proto | default('tcp') }}"
+    delete: true
+  loop: "{{ common_ufw_allowed_ports | selectattr('from_ip', 'defined') | list }}"
+  when: common_ufw_enabled | bool
+  notify: Reload ufw
+
 - name: Enable UFW
   community.general.ufw:
     state: enabled
   when: common_ufw_enabled | bool
+
+# --- Cleanup: orphaned cloudflared (PESO-138) ---
+# Cloudflare Tunnels were retired in favour of Caddy + Authelia (PESO-134, #56),
+# which removed cloudflared from ansible config. copenhagen-a was unreachable at
+# the time, so its cloudflared.service was never actually stopped and is still
+# running. Remove it wherever the unit lingers. copenhagen-c legitimately runs a
+# hand-configured cloudflared tunnel — never touch it.
+- name: Detect lingering cloudflared unit
+  ansible.builtin.stat:
+    path: /etc/systemd/system/cloudflared.service
+  register: common_cloudflared_unit
+  when: inventory_hostname != 'copenhagen-c'
+
+- name: Remove orphaned cloudflared
+  when:
+    - inventory_hostname != 'copenhagen-c'
+    - common_cloudflared_unit.stat.exists | default(false)
+  block:
+    - name: Stop and disable cloudflared
+      ansible.builtin.systemd:
+        name: cloudflared
+        state: stopped
+        enabled: false
+      failed_when: false
+
+    - name: Remove cloudflared systemd unit
+      ansible.builtin.file:
+        path: /etc/systemd/system/cloudflared.service
+        state: absent
+      notify: Reload systemd daemon
+
+    - name: Uninstall cloudflared package
+      ansible.builtin.apt:
+        name: cloudflared
+        state: absent
+        purge: true