IIUC, These are requirements for Deployment to graduate to default-on, a.k.a "beta".

IIUC. these are requirements for enabling deployments by default on HEAD as well, right?
cc @lavalamp

@nikhiljindal No-- IMO we can and should turn it on on HEAD as long as it's not destabilizing anything.

Also the e2e tests need to auto-discover whether the API is on and short-circuit if not, so that there's only one knob to flip.

Copying note from https://github.com/kubernetes/kubernetes/pull/19686/files#r51005929

We should change DefaultDeploymentUniqueLabelKey to "pod-template-hash" (all lowercase, no prefix).

We should copy all Deployment annotations to the RC of the latest revision in order to capture them in the revision history.

Other issues that need to be resolved:
#20290
#19111
#17164
#18078
#16737
#3024
#20087

The API also needs to be enabled by default.

In flight:

• ReplicaSet (like ReplicationController, but with the generalized selector)
• Pause and resume kubectl: add rollout pause/resume subcommands #20087
• Rollback/undo Add rollback subresource; add rollback logic to deployment controller #19686, Add kubectl rollout undo #19835
• Scale subresource Move ScaleStatus type's Selector to the new LabelSelector format. #19802
• stop Cascading delete deployment #18077
• revision info Deployment adds revision info to its new rc #19581
• rollout history Add kubectl rollout history #19893, Record kubectl commands (useful when viewing rollout history); copy deployment's annotations to its RC #20035
• make deployment the default in kubectl run Enable deployments by default #20517

Not done yet:

• Doc updates

Not going to make it in 1.2:

• Perm-fail and kubectl rollout retry
• kubectl set image
• watch rollout status in kubectl
• kubectl set env, commands, args

Specifically, the user guide needs to be updated.
https://github.com/kubernetes/kubernetes/blob/master/docs/user-guide/deployments.md

From @roberthbailey: We should move it to beta soon so that we can start testing it in the gke e2e tests at head.

We should copy all Deployment annotations to the RC of the latest revision in order to capture them in the revision history.

This feature is added in #20035

Filed #20517 to enable deployments by default, enable deployments in kubectl run, and update related docs/scripts.

Remove the defaulting behavior that defaults RC labels and Deployment selector to pod template labels in order to be consistent with Job's defaulting behavior.

cc @bgrant0607 @janetkuo @erictune

Note that we're waiting for the API to stabilize before enabling Deployment by default: label selector (change to new selector and ReplicaSet), MinReadySeconds (move to DeploymentSpec), uniqueLabelKey (rename to templateHashLabelKey), and the defaulting behavior (mentioned above) at least need to be in their intended states for v1beta1.

We've decided not to change the selector and label defaulting behavior in v1beta1.

We're still waiting on scale, stop, and some replicaset features.

I'd like to enable scaling of paused deployments, but we won't block on that.

Just waiting on /scale.