Scale canary deployments
Description
With https://gitlab.com/gitlab-org/gitlab-ce/issues/38543 you can scale your deployments using the CI/CD > Environments page. If you use canary deployments, you should be able to do the same.
Proposal
Implement a flow to scale canary deployments from the CI/CD > Environments page.
Design
The design is from https://gitlab.com/gitlab-org/gitlab-ee/issues/5416
The labels and all the copying should be revisited to adapt to this new scope.
(TODO: Where is the documentation links to?)
Tooltips
It has the short help text in a tooltip to explain the terms of Instances
and Incremental rollouts
.
(Note: the copy is not ready yet.)
Edited by Dimitrie Hoekstra