Merge pull request #53651 from sttts/sttts-apis-core

Automatic merge from submit-queue. If you want to cherry-pick this change to another branch, please follow the instructions <a href="https://github.com/kubernetes/community/blob/master/contributors/devel/cherry-picks.md">here</a>.

Move core API to pkg/apis/core

Fixes kubernetes/kubernetes#55304.

This moves the types in pkg/api and most of pkg/api/v1 to pkg/apis/core to match the other api groups, following-up on what kubernetes/kubernetes#44784 did for the external types.

It's a nearly 100% mechanical package move with a number of trivial fixups in code-generators and in tests which do string comparisons of types via reflection.

**Most importantly:**

- group names are unchanged
- apimachinery semantics are unchanged
- the outside api is unchanged.

Note that some packages for helpers are left in pkg/api/v1. Splitting them into helpers which belong tightly to the api and those which are not is left to follow-ups.

@kubernetes/sig-api-machinery-pr-reviews

Author: Kubernetes Submit Queue

pkg/cloudprovider/providers/openstack/BUILD

@@ -20,8 +20,8 @@ go_library(
     ],
     importpath = "k8s.io/kubernetes/pkg/cloudprovider/providers/openstack",
     deps = [
-        "//pkg/api/v1/helper:go_default_library",
         "//pkg/api/v1/service:go_default_library",
+        "//pkg/apis/core/v1/helper:go_default_library",
         "//pkg/cloudprovider:go_default_library",
         "//pkg/controller:go_default_library",
         "//pkg/util/mount:go_default_library",

pkg/cloudprovider/providers/openstack/openstack.go

@@ -42,7 +42,7 @@ import (
 	"k8s.io/apimachinery/pkg/types"
 	netutil "k8s.io/apimachinery/pkg/util/net"
 	certutil "k8s.io/client-go/util/cert"
-	v1helper "k8s.io/kubernetes/pkg/api/v1/helper"
+	v1helper "k8s.io/kubernetes/pkg/apis/core/v1/helper"
 	"k8s.io/kubernetes/pkg/cloudprovider"
 	"k8s.io/kubernetes/pkg/controller"
 )