I used to use Task Queues provided by google when I was using php runtime. Now i'm switching to ruby. So I read the whole documentation for the Ruby Runtime and Task Queues is not mentioned at all. should i use some third party queuing system like Requeue?
Sadly, Task Queues are not currently supported with Ruby. You can however have a look at Cloud Pub/Sub, which enables similar scenarios:
https://cloud.google.com/pubsub/
The gcloud ruby gem has support for Pub/Sub, and we have a few samples as well:
https://github.com/GoogleCloudPlatform/ruby-docs-samples/tree/master/pubsub
Hope this helps!