feature: the status page shows the Router Manager's version.

debian-package/debian/changelog

@@ -1,3 +1,14 @@
+vpn-router (0.11.0-1) unstable; urgency=medium
+
+  feature: the status page shows the Router Manager's version.
+
+  * / and /status show the installed version of vpn-router-manager, as
+    manager_version in JSON, or that it is not installed.
+  * The services show the state of each PostgreSQL cluster, as
+    postgresql@<version>-<cluster>, or postgresql: no cluster without one.
+
+ -- Slawomir Koszewski <slawek@koszewscy.waw.pl>  Sun, 25 Oct 2026 09:00:00 +0200
+
 vpn-router (0.10.0-1) unstable; urgency=medium
 
   feature: Manager-only accounts, and the Router Manager's first administrator.

debian-package/src/usr/lib/vpn-router/web

@@ -26,7 +26,8 @@ served (404) while the key does not exist. /auth is limited to AUTH_LIMIT calls
 address in AUTH_WINDOW seconds; the address of a call from one of web.trusted_proxies, by
 default the address the service listens on, is the last entry of its X-Forwarded-For header.
 
-/ and /status show only the status: whether the services run, the package version, whether
+/ and /status show only the status: whether the services run, the package version and the
+installed version of vpn-router-manager (manager_version, null when it is not installed), whether
 Docker is installed, and the state of site-to-site, road-warrior (IPsec P2S), OpenVPN and
 WireGuard. No configuration data, key or address is shown.
 
@@ -143,9 +144,10 @@ def unit_state(unit):
     return result.stdout.strip() if result and result.stdout.strip() else 'unknown'
 
 
-def package_version():
-    result = run('dpkg-query', '-W', '-f=${Version}', 'vpn-router')
-    return result.stdout.strip() if result and result.returncode == 0 else None
+def package_version(package='vpn-router'):
+    """The installed version of the package, or None when it is not installed."""
+    result = run('dpkg-query', '-W', '-f=${Version}', package)
+    return (result.stdout.strip() or None) if result and result.returncode == 0 else None
 
 
 def docker_status():
@@ -239,9 +241,20 @@ def openvpn_clients():
         return None
 
 
+def postgresql_clusters():
+    """The state of each PostgreSQL cluster unit (postgresql@<version>-<name>), or {'postgresql': 'no cluster'} without one.
+
+    postgresql.service, which only runs /bin/true, is not reported.
+    """
+    lines = lines_of('systemctl', 'list-units', 'postgresql@*.service', '--all', '--plain', '--no-legend') or []
+    names = [line.split()[0].removesuffix('.service') for line in lines if line.strip()]
+    return {name: unit_state(f'{name}.service') for name in names} or {'postgresql': 'no cluster'}
+
+
 def collect(state):
     """The status document. state says which features the router has."""
-    units = {'vpn-router-setup': unit_state('vpn-router-setup.service'), 'slapd': unit_state('slapd.service')}
+    units = {'vpn-router-setup': unit_state('vpn-router-setup.service'), 'slapd': unit_state('slapd.service'),
+             **postgresql_clusters()}
     if state.get('site_to_site') or state.get('p2s'):
         units['strongswan'] = unit_state('strongswan.service')
     if state.get('wireguard'):
@@ -252,6 +265,7 @@ def collect(state):
     status = {
         'status': 'ok' if all(value == 'active' for value in units.values()) else 'degraded',
         'version': package_version(),
+        'manager_version': package_version('vpn-router-manager'),
         'time': time.strftime('%Y-%m-%dT%H:%M:%S%z'),
         'units': units,
         'docker': docker_status(),
@@ -327,6 +341,7 @@ def details(state):
 def text_of(status):
     """The status for people, as plain text."""
     lines = ['VPN Router', f'Status: {status["status"]}', f'Version: {status["version"] or "unknown"}', '']
+    lines.append(f'Router Manager: {status["manager_version"] or "not installed"}')
     lines += [f'{name}: {value}' for name, value in status['units'].items()]
     docker = status['docker']
     lines.append('Docker: not installed' if not docker['installed']