Cherry-pick #15854 to 7.x: Kubernetes: update replicaset type to apps…

…/v1 (#15869)

* Kubernetes: update replicaset type to apps/v1 (#15854)

* update replicaset type to apps/v1

(cherry picked from commit 89822fe)

* remove changelog not backported

CHANGELOG.next.asciidoc

@@ -58,6 +58,7 @@ https://github.com/elastic/beats/compare/v7.0.0-alpha2...master[Check the HEAD d
 - Fix a race condition with the Kafka pipeline client, it is possible that `Close()` get called before `Connect()` . {issue}11945[11945]
 - Allow users to configure only `cluster_uuid` setting under `monitoring` namespace. {pull}14338[14338]
 - Fix spooling to disk blocking infinitely if the lock file can not be acquired. {pull}15338[15338]
+- Update replicaset group to apps/v1 {pull}15854[15802]
 - Fix `metricbeat test output` with an ipv6 ES host in the output.hosts. {pull}15368[15368]
 - Fix `convert` processor conversion of string to integer with leading zeros. {issue}15513[15513] {pull}15557[15557]
 - Fix panic in the Logstash output when trying to send events to closed connection. {pull}15568[15568]

libbeat/common/kubernetes/types.go

@@ -23,7 +23,6 @@ import (
 
 	appsv1 "k8s.io/api/apps/v1"
 	v1 "k8s.io/api/core/v1"
-	extv1 "k8s.io/api/extensions/v1beta1"
 	metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
 	"k8s.io/apimachinery/pkg/runtime"
 )
@@ -65,7 +64,7 @@ type PodContainerStatus = v1.ContainerStatus
 type Deployment = appsv1.Deployment
 
 // ReplicaSet data
-type ReplicaSet = extv1.ReplicaSet
+type ReplicaSet = appsv1.ReplicaSet
 
 // StatefulSet data
 type StatefulSet = appsv1.StatefulSet