How to extract ECS Fargate Task ID and show it in the extraction field as a task in my Splunk?

[rasikmhetre95]

Earlier we used to run on ec2 instance, and in splunk we had an extracted field called as "host", in which we used to get an ip address of the host. But since we have moved away from ec2 to fargate i want to replace the host with taskid and get all taskids in the extraction field called as "task". Any help appreciated