This simple script makes use of the 'incoming webhook' connector in MS Teams. It will simply send a message stating that the server has either gone offline or online based on the last hard state of the host.

Internet access, Python 3, and the requests package are required.

1. Clone git repo:

   git clone https://github.com/ajaffie/teams_connector.git cd teams_connector git tag -l git checkout

2. Create webhook(s) in desired MS Teams channels and add the urls to the urls list in config.json.

3. For each webhook in config.json, either put a "*" to include all notifications for that channel, or list the servers you want notifications to be sent to that channel for. Optional: You can specify custom names for servers to use instead of "Server " in the messages. This is most useful for cases where the script executed automatically by a system such as Icinga or Nagios where the name specified is the internal name/FQDN and you want a more user-friendly message printed.

4. Add NotificationCommand definition and Notification apply rules to your Icinga2/Nagios/etc. configurations.

5. Stop cluttering your inbox and instead annoy everyone in MS Teams!

(A NotificationCommand definition is included, but you MUST change the path, as it uses a custom defined constant.)