Slack

Slack

The Slack transport will POST the alert message to your Slack Incoming WebHook using the attachments option, you are able to specify multiple webhooks along with the relevant options to go with it. Simple html tags are stripped from the message. All options are optional, the only required value is for url, without this then no call to Slack will be made.

We currently support the following attachment options:

• author_name

We currently support the following global message options:

• channel_name : Slack channel name (without the leading '#') to which the alert will go
• icon_emoji : Emoji name in colon format to use as the author icon

Slack docs

The alert template can make use of Slack markdown. In the Slack markdown dialect, custom links are denoted with HTML angled brackets, but LibreNMS strips these out. To support embedding custom links in alerts, use the bracket/parentheses markdown syntax for links. For example if you would typically use this for a Slack link:

<https://www.example.com|My Link>

Use this in your alert template:

[My Link](https://www.example.com)

Example: