feat: Allow custom attachement (#123)

Author: IppX

.gitignore

@@ -31,3 +31,4 @@ terraform.rc
 # Lambda directories
 builds/
 __pycache__/
+functions/pytest.ini

functions/notify_slack.py

@@ -91,6 +91,8 @@ def notify_slack(subject, message, region):
     notification = cloudwatch_notification(message, region)
     payload['text'] = "AWS CloudWatch notification - " + message["AlarmName"]
     payload['attachments'].append(notification)
+  elif "attachments" in message or "text" in message:
+    payload = {**payload, **message}
   else:
     payload['text'] = "AWS notification"
     payload['attachments'].append(default_notification(subject, message))

functions/notify_slack_test.py

@@ -97,6 +97,44 @@
             "NewStateValue": "ALARM",
         }
     ),
+    (
+        {
+            "attachments": [
+                {
+                    "mrkdwn_in": ["text"],
+                    "color": "#36a64f",
+                    "pretext": "Optional pre-text that appears above the attachment block",
+                    "author_name": "author_name",
+                    "author_link": "http://flickr.com/bobby/",
+                    "author_icon": "https://placeimg.com/16/16/people",
+                    "title": "title",
+                    "title_link": "https://api.slack.com/",
+                    "text": "Optional `text` that appears within the attachment",
+                    "fields": [
+                        {
+                            "title": "A field's title",
+                            "value": "This field's value",
+                            "short": False
+                        },
+                        {
+                            "title": "A short field's title",
+                            "value": "A short field's value",
+                            "short": True
+                        },
+                        {
+                            "title": "A second short field's title",
+                            "value": "A second short field's value",
+                            "short": True
+                        }
+                    ],
+                    "thumb_url": "http://placekitten.com/g/200/200",
+                    "footer": "footer",
+                    "footer_icon": "https://platform.slack-edge.com/img/default_application_icon.png",
+                    "ts": 123456789
+                }
+            ]
+        }
+    ),
     (
       {
         "Records": [