AdmissionResponse allows mutating webhook to send apiserver a json patch
to mutate the object.
This reflects the imperative nature of AdmissionReview. It adds
AdmissionRequest and AdmissionResponse in place of status/spec.
The AdmissionResponse the allows the mutating webhook
to send back a json path with the mutated version of the requested
object.
Fixed the integration test to clean up properly.
Switched test image to 1.8v5 to reflect API changes.
Make sure to cache test framework client for cleaup test code.
Switched to pointer for patch type.
Factored in @liggitt's feedback.
Factored in @lavalamp's feedback.
Kubernetes-commit: dac3c2e168784bbcf1cbfef8bf5430101e191715
Move the namespace selector code to package webhook/namespace
Move the conversion related code to package to webhook/versioned
Move errors related code to package webhook/errors
Move admission review related code to package webhook/request
Kubernetes-commit: 51774697b35314b078270e9da24fbe0ff843b981
Moved client and kubeconfig related code to webhook/config;
Moved the rule matcher to webhook/rules;
Left TODOs saying we are going to move some other common utilities;
Other code is moved to webhook/validation.
Kubernetes-commit: 1adfacc7eb41da109e970a9c2985fd55b4cbbdfd
Dr. Stefan Schimanski