Task runners call poll_for_task
to receive a task to perform from AWS Data Pipeline. The task runner specifies which tasks it can perform by setting a value for the workerGroup
parameter. The task returned can come from any of the pipelines that match the workerGroup
value passed in by the task runner and that was launched using the IAM user credentials specified by the task runner.
See https://www.paws-r-sdk.com/docs/datapipeline_poll_for_task/ for full documentation.
datapipeline_poll_for_task(
workerGroup,
hostname = NULL,
instanceIdentity = NULL
)
[required] The type of task the task runner is configured to accept and process.
The worker group is set as a field on objects in the pipeline when they
are created. You can only specify a single value for workerGroup
in
the call to poll_for_task
. There are no
wildcard values permitted in workerGroup
; the string must be an exact,
case-sensitive, match.
The public DNS name of the calling task runner.
Identity information for the EC2 instance that is hosting the task
runner. You can get this value from the instance using
http://169.254.169.254/latest/meta-data/instance-id
. For more
information, see Instance Metadata
in the Amazon Elastic Compute Cloud User Guide. Passing in this value
proves that your task runner is running on an EC2 instance, and ensures
the proper AWS Data Pipeline service charges are applied to your
pipeline.