add author icon

templates/rocketchat-bot.py.j2

@@ -21,6 +21,24 @@ icons = {
     'resolved': ':white_check_mark:'
 }
 
+'''
+Example message:
+
+{
+  "text": "Example message",
+  "attachments": [
+    {
+      "title": "Rocket.Chat",
+      "title_link": "https://rocket.chat",
+      "text": "Rocket.Chat, the best open source chat",
+      "image_url": "/images/integration-attachment-example.png",
+      "color": "#764FA5"
+    }
+  ]
+}
+'''
+
+
 '''
 Example attachment:
 
@@ -147,6 +165,7 @@ def send_alert_message(channel, alert):
             "message_link": alert.get('generatorURL', '#'),  # link for timestamp, mandatory to display timestamp
             "collapsed": True,  # collapse details by default
             "author_name": alert['labels'].get('instance', 'unknown'),
+            "author_icon": "https://rocket.cccv.de/emoji-custom/molli.png",
             "title": alert['annotations']['title'],
             "fields": [{"short": True, "title": key, "value": value} for key, value in alert['labels'].items() if
                        key not in label_ignore_fields]