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Action Start Condition

Skip an Action - or force it to run - based on the xRunBook Status
Start conditions allow flexibility in the way RunBooks are executed.
There may be times during a RunBook execution that a step can be skipped - based on different inputs, or values obtained during execution.


Let's look at the Delete Old EBS Snapshots RunBook (this is a built in RunBook that is part of every unSkript install).
There are 3 input parameters for this RunBook:
  • AWS Region (optional)
  • SnapshotID (optional)
  • "days until old."
Here are the steps in the RunBook:
  1. 1.
    AWS List all Regions
  2. 2.
    Iterate through each Region to get Snapshots
  3. 3.
    Delete the snapshots
If the RunBook has a Region supplied as input - there is no reason to run Step 1 - AWS List all Regions. So we can enable a start Condition:
This Action will run if there is no value in the region variable. If there is a value in region - we can skip this step.
Run 1: No region:
  • Get all the regions
  • Find all of the Snapshots in all regions
  • Delete them
Run 2: region = "us-west-2":
  • Skip "get all regions"
  • Find the Snapshots in us-west-2
  • Delete them.