Details
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Task
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Status: Resolved (View Workflow)
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Major
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Resolution: Fixed
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Meridian-2016.1.17
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Security Level: Default (Default Security Scheme)
Description
Steps to reproduce:
Configure a notification command in notificationCommands.xml as follows:
<command binary="false">
<name>slack_channel_operations</name>
<execute>org.opennms.netmgt.notifd.SlackNotificationStrategy</execute>
<comment>Send messages to the #operations channel on Slack</comment>
<argument streamed="false">
<switch>-subject</switch>
</argument>
<argument streamed="false">
<switch>-tm</switch>
</argument>
<argument streamed="false">
<substitution>https://hooks.slack.com/services/ASDF/GHJKL/ZXCVBNMQWERTYUIOP</substitution>
<switch>-url</switch>
</argument>
</command>
Hit it with a notification.
Expected result: Notification sent to channel associated with the webhook specified with the -url switch substitution
Actual result: Notification fails to be sent, with the following appearing in notifd.log:
2019-02-04 22:04:13,846 DEBUG [NotificationTask-0] o.o.n.n.ClassExecutor: Going for the class instance: org.opennms.netmgt.notifd.SlackNotificationStrategy 2019-02-04 22:04:13,860 DEBUG [NotificationTask-0] o.o.n.n.ClassExecutor: org.opennms.netmgt.notifd.SlackNotificationStrategy class created: class org.opennms.netmgt.notifd.SlackNotificationStrategy 2019-02-04 22:04:13,861 DEBUG [NotificationTask-0] o.o.n.n.AbstractSlackCompatibleNotificationStrategy: Trying to get Webhook URL from notification switch url 2019-02-04 22:04:13,861 DEBUG [NotificationTask-0] o.o.n.n.AbstractSlackCompatibleNotificationStrategy: Trying to get Webhook URL from system property org.opennms.netmgt.notifd.slack.webhookURL 2019-02-04 22:04:13,861 WARN [NotificationTask-0] o.o.n.n.AbstractSlackCompatibleNotificationStrategy: Could not determine value for Webhook URL from notification command switch url or system property org.opennms.netmgt.notifd.slack.webhookURL 2019-02-04 22:04:13,861 ERROR [NotificationTask-0] o.o.n.n.AbstractSlackCompatibleNotificationStrategy: No webhook URL specified as a notification command switch or via system property org.opennms.netmgt.notifd.slack.webhookURL. Cannot continue. 2019-02-04 22:04:13,861 ERROR [NotificationTask-0] o.o.n.n.AbstractSlackCompatibleNotificationStrategy: send: url must not be null 2019-02-04 22:04:13,861 DEBUG [NotificationTask-0] o.o.n.n.NotificationTask: command slack_channel_operations return code = 1
Workaround: Specify the webhook url using switch url rather than -url (omit the leading dash character)
Update: An equivalent problem exists with the -username, -iconurl, -iconemoji, and -channel switches. These problems can be worked around in the equivalent way as described for -url above.
