The Start instance action starts one or multiple EC2 instances that were stopped earlier. The Start instance action supports only instances that use Amazon EBS volumes as their root devices.

The Start instance action uses the session name specified in the Connect action to authenticate the start request to the base URL. The Start instance action requires the IDs of the instances in the action to start those instances. Starting an instance triggers AWS to assign new compute resources and a new public IPv4 address.

The action returns the current and previous states of the specified instance IDs. The State transitions option enables you to save this information in a dictionary variable or individual variables.

Settings

The following settings are available in the Start instance action:

Session name
The session identifier defined in the Connect action. The system automatically assigns Default as the session name. You can provide a string variable or use a session variable.
Instance IDs
The IDs of EC2 instances to start. Accepts one or more IDs as comma-separated values.
Assign state transitions to variable
Variables that hold the IDs, current and previous state information of each EC2 instance. The following options are available:
  • Multiple variables: Individual variables with keys, each holding a specific instance detail.
  • Dictionary: A single dictionary variable that holds all the instance details.