Canopsis transport (#9795)

* Change in the Canopsis transport to make it 3.9.0 compliant and link to
the new documentation

* Add missing php72 module on Centos

* Fixing documentation for AMQP based tranport outside of the main doc

LibreNMS/Alert/Transport/Canopsis.php

@@ -23,7 +23,7 @@ class Canopsis extends Transport
         $host     = $opts["host"];
         $port     = $opts["port"];
         $user     = $opts["user"];
-        $pass     = $opts["passwd"];
+        $pass     = $opts["pass"];
         $vhost    = $opts["vhost"];
         $exchange = "canopsis.events";
 
@@ -41,13 +41,13 @@ class Canopsis extends Transport
                 $state = 0;
                 break;
             case "warning":
-                $state = 1;
-                break;
-            case "critical":
                 $state = 2;
                 break;
-            default:
+            case "critical":
                 $state = 3;
+                break;
+            default:
+                $state = 0;
         }
         $msg_body = array(
             "timestamp" => time(),
@@ -56,9 +56,8 @@ class Canopsis extends Transport
             "event_type" => "check",
             "source_type" => "resource",
             "component" => $obj['hostname'],
-            "resource" => $obj['faults'][1]['storage_descr'],
+            "resource" => $obj['name'],
             "state" => $state,
-            "state_type" => 1,
             "output" => $obj['msg'],
             "display_name" => "librenms"
         );

doc/Alerting/Transports.md

@@ -24,6 +24,11 @@ To include users that have `Global-Read`, `Administrator` or `Normal-User` permi
 ## Using a Proxy?
 [Proxy Configuration](../Support/Configuration.md#proxy-support)
 
+## Using a AMQP based Transport?
+
+You need to install an additional php module : `bcmath` (eg `php72w-bcmath` for
+Centos 7)
+
 ## Alertmanager
 Alertmanager is an alert handling software, initially developed for alert processing sent by Prometheus. 
 
@@ -74,7 +79,7 @@ Copy your access token from the Boxcar app or from the Boxcar.io website and set
 ## Canopsis
 Canopsis is a hypervision tool. LibreNMS can send alerts to Canopsis which are then converted to canopsis events. 
 
-[Canopsis Docs](http://www.canopsis.org/wp-content/themes/canopsis/doc/sakura/user-guide/event-spec.html)
+[Canopsis Docs](https://doc.canopsis.net/guide-developpement/struct-event/)
 
 **Example:**