How to implement build once and deploy anywhere with jenkins pipelines and artifactory

[Naga Saketh Jaligama]

I would like to have a pipeline of build once and depploy anywhere with
jenkisnfile pipelines.
we have dev,qa,uat,stage,prod environments. The pipeline should be able to
buidl once and deploy to artifactory and then from qa it should do the
promotion and deploy to teh respective environment.

How is this possible with Jenkins and artifactory?

I know the basic artifactory pipeline code to do the promotion.But, how do
we do maintain repos in artifactory