inventory: add ACME certificate count and status

src/nethsec/inventory/__init__.py

@@ -80,6 +80,25 @@ def fact_custom_certificates(uci: EUci):
         pass
     return ret
 
+def fact_acme_certificates(uci: EUci):
+    ret = {
+            'count': 0,
+            'issued': 0,
+            'pending': 0,
+        }
+    requested_certificates = utils.get_all_by_type(uci, 'acme', 'cert')
+    enabled_certificates = [certificate for certificate in requested_certificates
+                            if requested_certificates[certificate]['enabled'] == '1']
+    for certificate in enabled_certificates:
+        ret['count'] += 1
+        domain = requested_certificates[certificate]['domains'][0]
+        cert_path = f'/etc/ssl/acme/{domain}.fullchain.crt'
+        if os.path.isfile(cert_path):
+            ret['issued'] += 1
+        else:
+            ret['pending'] += 1
+    return ret
+
 def fact_subscription_status(uci: EUci):
     return { 'status': uci.get('ns-plug', 'config', 'type', default='no') }