会启动两个event记录器，v1beta1、corev1，调度器记录pod调度失败或成功用的是betav1：
    image.png

    kube-scheduler记录的leader选举的event，lastTimestamp和firstTimestamp不为null，managedFields中为corev1版本的event

    1. - apiVersion: v1
    2.   count: 1
    3.   eventTime: null
    4.   firstTimestamp: "2020-07-30T06:42:40Z"
    5.   involvedObject:
    6.     apiVersion: v1
    7.     kind: Endpoints
    8.     name: kube-scheduler
    9.     namespace: kube-system
    10.     resourceVersion: "115903"
    11.     uid: 75a27c53-d056-4537-98fa-b597d8e10b7c
    12.   kind: Event
    13.   lastTimestamp: "2020-07-30T06:42:40Z"
    14.   message: liabio_8678aab6-5a90-4c9d-930c-e555b37b0d94 became leader
    15.   metadata:
    16.     creationTimestamp: "2020-07-30T06:42:40Z"
    17.     managedFields:
    18.     - apiVersion: v1
    19.       fieldsType: FieldsV1
    20.       fieldsV1:
    21.         f:count: {}
    22.         f:firstTimestamp: {}
    23.         f:involvedObject:
    24.           f:apiVersion: {}
    25.           f:kind: {}
    26.           f:name: {}
    27.           f:namespace: {}
    28.           f:resourceVersion: {}
    29.           f:uid: {}
    30.         f:lastTimestamp: {}
    31.         f:message: {}
    32.         f:reason: {}
    33.         f:source:
    34.           f:component: {}
    35.         f:type: {}
    36.       manager: kube-scheduler
    37.       operation: Update
    38.       time: "2020-07-30T06:42:40Z"
    39.     name: kube-scheduler.162674a2ae483d50
    40.     namespace: kube-system
    41.     resourceVersion: "115905"
    42.     selfLink: /api/v1/namespaces/kube-system/events/kube-scheduler.162674a2ae483d50
    43.     uid: a0fa7122-1cf9-411d-8e37-de146c5c8192
    44.   reason: LeaderElection
    45.   reportingComponent: ""
    46.   reportingInstance: ""
    47.   source:
    48.     component: default-scheduler
    49.   type: Normal

    kube-scheduler记录的调度pod失败的event，lastTimestamp和firstTimestamp为null，managedFields中为v1beta1版本的event：

    1. - action: Scheduling
    2.   apiVersion: v1
    3.   eventTime: "2020-07-30T04:00:59.833687Z"
    4.   firstTimestamp: null
    5.   involvedObject:
    6.     apiVersion: v1
    7.     kind: Pod
    8.     name: coredns-66bff467f8-2qctw
    9.     namespace: kube-system
    10.     resourceVersion: "85531"
    11.     uid: 8bfca0dd-6fdb-4893-ad3d-62d037d6dafa
    12.   kind: Event
    13.   lastTimestamp: null
    14.   message: '0/1 nodes are available: 1 node(s) were unschedulable.'
    15.   metadata:
    16.     creationTimestamp: "2020-07-30T04:00:59Z"
    17.     managedFields:
    18.     - apiVersion: events.k8s.io/v1beta1
    19.       fieldsType: FieldsV1
    20.       fieldsV1:
    21.         f:action: {}
    22.         f:deprecatedSource:
    23.           f:component: {}
    24.         f:eventTime: {}
    25.         f:note: {}
    26.         f:reason: {}
    27.         f:regarding:
    28.           f:apiVersion: {}
    29.           f:kind: {}
    30.           f:name: {}
    31.           f:namespace: {}
    32.           f:resourceVersion: {}
    33.           f:uid: {}
    34.         f:reportingController: {}
    35.         f:reportingInstance: {}
    36.         f:series:
    37.           .: {}
    38.           f:count: {}
    39.           f:lastObservedTime: {}
    40.           f:state: {}
    41.         f:type: {}
    42.       manager: kube-scheduler
    43.       operation: Update
    44.       time: "2020-07-30T06:30:43Z"
    45.     name: coredns-66bff467f8-2qctw.16266bd02ee73afe
    46.     namespace: kube-system
    47.     resourceVersion: "114343"
    48.     selfLink: /api/v1/namespaces/kube-system/events/coredns-66bff467f8-2qctw.16266bd02ee73afe
    49.     uid: 7863f604-9b8e-4ed8-bd04-a150451fc528
    50.   reason: FailedScheduling
    51.   reportingComponent: default-scheduler
    52.   reportingInstance: default-scheduler-liabio
    53.   series:
    54.     count: 99
    55.     lastObservedTime: "2020-07-30T06:29:29.921206Z"
    56.   source:
    57.     component: default-scheduler
    58.   type: Warning

    bind成功的event：lastTimestamp和firstTimestamp为null，managedFields中为v1beta1版本的event：

    1. - action: Binding
    2.   apiVersion: v1
    3.   eventTime: "2020-07-30T06:45:54.316058Z"
    4.   firstTimestamp: null
    5.   involvedObject:
    6.     apiVersion: v1
    7.     kind: Pod
    8.     name: coredns-66bff467f8-2qctw
    9.     namespace: kube-system
    10.     resourceVersion: "116337"
    11.     uid: 8bfca0dd-6fdb-4893-ad3d-62d037d6dafa
    12.   kind: Event
    13.   lastTimestamp: null
    14.   message: Successfully assigned kube-system/coredns-66bff467f8-2qctw to liabio
    15.   metadata:
    16.     creationTimestamp: "2020-07-30T06:45:54Z"
    17.     managedFields:
    18.     - apiVersion: events.k8s.io/v1beta1
    19.       fieldsType: FieldsV1
    20.       fieldsV1:
    21.         f:action: {}
    22.         f:deprecatedSource:
    23.           f:component: {}
    24.         f:eventTime: {}
    25.         f:note: {}
    26.         f:reason: {}
    27.         f:regarding:
    28.           f:apiVersion: {}
    29.           f:kind: {}
    30.           f:name: {}
    31.           f:namespace: {}
    32.           f:resourceVersion: {}
    33.           f:uid: {}
    34.         f:reportingController: {}
    35.         f:reportingInstance: {}
    36.         f:type: {}
    37.       manager: kube-scheduler
    38.       operation: Update
    39.       time: "2020-07-30T06:45:54Z"
    40.     name: coredns-66bff467f8-2qctw.162674cfec0294fc
    41.     namespace: kube-system
    42.     resourceVersion: "116340"
    43.     selfLink: /api/v1/namespaces/kube-system/events/coredns-66bff467f8-2qctw.162674cfec0294fc
    44.     uid: a2bb6ee3-a6fb-4d98-985e-eb15b0202b96
    45.   reason: Scheduled
    46.   reportingComponent: default-scheduler
    47.   reportingInstance: default-scheduler-liabio
    48.   source:
    49.     component: default-scheduler
    50.   type: Normal