Add server-side apply to kubectl

[Raboo]

Describe the Feature You Want

Add optional support for server-side apply for k8s_yaml();
https://kubernetes.io/docs/reference/using-api/server-side-apply/

Current Behavior

Currently k8s_yaml(); only supports client-side apply.

Why Do You Want This?

Some some large yaml objects are impossible to apply using client-side apply.
Also it might be good for tilt to support server-side apply before it becomes default. They plan on making it the default.

Additional context
kubernetes/kubectl#712
banzaicloud/koperator#716

[nicks]

Minor correction - k8s_yaml supports several different protocols for sending resources to the cluster, including a modified apply, a replace, and a delete+create, depending on what protocol makes the most sense. e.g., for large yaml objects it will usually use replace. cf #5065

(though agree that we should also add the ability to do server-side apply when the cluster supports it)

[Raboo]

Hmm, maybe I was running to old version of tilt? In which version was this create/replace made for large yaml objects?

And yes, I think server-side apply should be an option still.

[nicks]

if you're using v0.23, it should use the replace strategy for large objects