- Splunk version 6.3 or greater
- Windows, Linux or Mac OS operating system
App installation requires admin privileges.
- Navigate to "Manage apps" and click "Install app from file"
- Upload the app bundle
In order to setup the app, navigate to "Settings" -> "Alert actions". Click on "Setup Slack Alerts".
On the setup screen you'll want to supply a Webhook URL. You can obtain this URL by configuring a custom integration for you Slack workspace.
For more information see https://slack.com/apps/A0F7XDUAZ-incoming-webhooks
Setup page shows "I am Legend" setup_stub
An issue after upgrading the Slack Alerts app can cause an invalid redirect from the alert actions listing page to the setup page. Go to "Manage Apps" and click on "Set up" instead of using the Alert actions listing.
Alternatively - to fix it - you can remove the is_configured
flag from $SPLUNK_HOME/etc/apps/slack_alerts/local/app.conf
and restart Splunk.
In order to investigate problems with the Slack alert action, you can check the logs of the alert action.
- Navigate to "Settings" -> "Alert actions"
- Click on "View log events" for the Slack alert action
You can also increase the verbosity of logs generated by the alert action by adjusting the
- Navigate to "Settings" -> "Server settings" -> "Server logging"
- Search for the log channel "sendmodalert"
- Select logging level "DEBUG"
NOTE: This will increase cause detailed logs to be produced for all alert actions and might have an impact on system performance. It is not recommended to do this on a production system.
You can manually trigger the slack alert action if you want to verify the configuration and/or preview different parameter combinations.
For example:
| sendalert slack param.channel="#mychannel" param.message="Lorem ipsum"
Enter a simlar SPL query into the search bar in the search interface of Splunk to manually send a message.
In case of an error when manually triggering the Slack alert action, you'll notice an error code being returned (eg. Alert script returned error code 6.
)
Here are the possible error codes returned by the slack alert action:
-
Error Code
2
: Validation FailedThis error code indications that the parameters handed to the alert action were invalid. Check the configuration.
-
Error Code
3
: Channel not foundThis error code is returned if the given Slack channel was not found
-
Error Code
4
: ForbiddenSlack indicates that sending the message to the given channel is not allowed. Contact your Slack workspace administrator to find out about possible restrictions.
-
Error Code
5
: HTTP failureThis error code indicates a problem with executing the HTTP request to the configured webhook URL. Possible reasons include network issues, proxy server issues See logs for details.
-
Error Code
6
: Unexpected errorAn unexpected error occurred while attempting to send the slack message. See logs for details.