Magento payment gateway publish(Urgently)

I have a new magento payment gateway.
I'm using this on my webstore now and I am going to publish it on Magento Marketplace.
There is full source package, but I can't pass magento marketplace auto testing.

requirements:
-Install local magento commerce cloud docker on my machine
-install plugin on docker
-fix bugs
-pass the auto test
-publish plugin on marketplace

questions:
-Have you ever been publish magento plugin on marketplace before?
-Do you know about varnish and MFTF?