deleteTopologyLink
A Workflow Engine function that removes a direct link between two endpoints, A (source node) and Z (sink node), in a named topology. Both nodes must exist with a direct link to return true.
This function is available for alert workflows.
Back to Workflow Engine Functions Reference.
Arguments
Workflow Engine function deleteTopologyLink takes the following arguments:
Name | Required | Type | Description |
|---|---|---|---|
topologyName | yes | string | The name or substited value for the topology. To substitute a value, use $(<attribute_name>). For example $(custom_info.myTopology) |
sourceNode | yes | string | The name or substituted value for the 'A' endpoint (source node). To substitute a value, use $(<attribute_name>). For example $(custom_info.mySourceNode) |
sinkNode | yes | string | The name or substituted value for the 'Z' endpoint (sink node). To substitute a value, use $(<attribute_name>). For example $(custom_info.mySinkNode) |
Example
The following example demonstrates typical use of Workflow Engine function deleteTopologyLink.
If you want to remove a link in the topology "my network" between the alert source and another node you have previously added to the workflow context, set the following:
topologyName: my networksourceNode: $(source)sinkNode: $(workflowContext.destination)
The UI translates your settings to the following JSON:
{"topologyName":"my network",
"sourceNode":"$(source)","sinkNode":"$(workflowContext.destination)"}For an alert where source = sflinux101 and the corresponding workflowContext.destination = sflinux102, the workflow action deletes any existing direct link between the two nodes.