支持控制台（Console）开发人员开始试用联系人

9.5. 验证端点的网络连接

作为集群管理员，您可以验证端点的连接，如 API 服务器、负载均衡器、服务或 pod，并验证是否启用了网络诊断。

先决条件

  • 安装 OpenShift CLI（oc）。
  • 使用具有 cluster-admin 角色的用户访问集群。

流程

  1. 要确认启用了网络诊断，请输入以下命令： 

    $ oc get network.config.openshift.io cluster -o yaml

    输出示例

      # ...
  status:
  # ...
    conditions:
    - lastTransitionTime: "2024-05-27T08:28:39Z"
      message: ""
      reason: AsExpected
      status: "True"
      type: NetworkDiagnosticsAvailable

  2. 要列出当前的 PodNetworkConnectivityCheck 对象，请输入以下命令： 

    $ oc get podnetworkconnectivitycheck -n openshift-network-diagnostics

    输出示例

    NAME                                                                                                                                AGE
network-check-source-ci-ln-x5sv9rb-f76d1-4rzrp-worker-b-6xdmh-to-kubernetes-apiserver-endpoint-ci-ln-x5sv9rb-f76d1-4rzrp-master-0   75m
network-check-source-ci-ln-x5sv9rb-f76d1-4rzrp-worker-b-6xdmh-to-kubernetes-apiserver-endpoint-ci-ln-x5sv9rb-f76d1-4rzrp-master-1   73m
network-check-source-ci-ln-x5sv9rb-f76d1-4rzrp-worker-b-6xdmh-to-kubernetes-apiserver-endpoint-ci-ln-x5sv9rb-f76d1-4rzrp-master-2   75m
network-check-source-ci-ln-x5sv9rb-f76d1-4rzrp-worker-b-6xdmh-to-kubernetes-apiserver-service-cluster                               75m
network-check-source-ci-ln-x5sv9rb-f76d1-4rzrp-worker-b-6xdmh-to-kubernetes-default-service-cluster                                 75m
network-check-source-ci-ln-x5sv9rb-f76d1-4rzrp-worker-b-6xdmh-to-load-balancer-api-external                                         75m
network-check-source-ci-ln-x5sv9rb-f76d1-4rzrp-worker-b-6xdmh-to-load-balancer-api-internal                                         75m
network-check-source-ci-ln-x5sv9rb-f76d1-4rzrp-worker-b-6xdmh-to-network-check-target-ci-ln-x5sv9rb-f76d1-4rzrp-master-0            75m
network-check-source-ci-ln-x5sv9rb-f76d1-4rzrp-worker-b-6xdmh-to-network-check-target-ci-ln-x5sv9rb-f76d1-4rzrp-master-1            75m
network-check-source-ci-ln-x5sv9rb-f76d1-4rzrp-worker-b-6xdmh-to-network-check-target-ci-ln-x5sv9rb-f76d1-4rzrp-master-2            75m
network-check-source-ci-ln-x5sv9rb-f76d1-4rzrp-worker-b-6xdmh-to-network-check-target-ci-ln-x5sv9rb-f76d1-4rzrp-worker-b-6xdmh      74m
network-check-source-ci-ln-x5sv9rb-f76d1-4rzrp-worker-b-6xdmh-to-network-check-target-ci-ln-x5sv9rb-f76d1-4rzrp-worker-c-n8mbf      74m
network-check-source-ci-ln-x5sv9rb-f76d1-4rzrp-worker-b-6xdmh-to-network-check-target-ci-ln-x5sv9rb-f76d1-4rzrp-worker-d-4hnrz      74m
network-check-source-ci-ln-x5sv9rb-f76d1-4rzrp-worker-b-6xdmh-to-network-check-target-service-cluster                               75m
network-check-source-ci-ln-x5sv9rb-f76d1-4rzrp-worker-b-6xdmh-to-openshift-apiserver-endpoint-ci-ln-x5sv9rb-f76d1-4rzrp-master-0    75m
network-check-source-ci-ln-x5sv9rb-f76d1-4rzrp-worker-b-6xdmh-to-openshift-apiserver-endpoint-ci-ln-x5sv9rb-f76d1-4rzrp-master-1    75m
network-check-source-ci-ln-x5sv9rb-f76d1-4rzrp-worker-b-6xdmh-to-openshift-apiserver-endpoint-ci-ln-x5sv9rb-f76d1-4rzrp-master-2    74m
network-check-source-ci-ln-x5sv9rb-f76d1-4rzrp-worker-b-6xdmh-to-openshift-apiserver-service-cluster                                75m

  3. 查看连接测试日志：

    1. 在上一命令的输出中，标识您要查看连接日志的端点。

    2. 要查看对象，请输入以下命令： 

      $ oc get podnetworkconnectivitycheck <name> \
  -n openshift-network-diagnostics -o yaml

      这里的 <name> 指定 PodNetworkConnectivityCheck 对象的名称。

      输出示例

      apiVersion: controlplane.operator.openshift.io/v1alpha1
kind: PodNetworkConnectivityCheck
metadata:
  name: network-check-source-ci-ln-x5sv9rb-f76d1-4rzrp-worker-b-6xdmh-to-kubernetes-apiserver-endpoint-ci-ln-x5sv9rb-f76d1-4rzrp-master-0
  namespace: openshift-network-diagnostics
  ...
spec:
  sourcePod: network-check-source-7c88f6d9f-hmg2f
  targetEndpoint: 10.0.0.4:6443
  tlsClientCert:
    name: ""
status:
  conditions:
  - lastTransitionTime: "2021-01-13T20:11:34Z"
    message: 'kubernetes-apiserver-endpoint-ci-ln-x5sv9rb-f76d1-4rzrp-master-0: tcp
      connection to 10.0.0.4:6443 succeeded'
    reason: TCPConnectSuccess
    status: "True"
    type: Reachable
  failures:
  - latency: 2.241775ms
    message: 'kubernetes-apiserver-endpoint-ci-ln-x5sv9rb-f76d1-4rzrp-master-0: failed
      to establish a TCP connection to 10.0.0.4:6443: dial tcp 10.0.0.4:6443: connect:
      connection refused'
    reason: TCPConnectError
    success: false
    time: "2021-01-13T20:10:34Z"
  - latency: 2.582129ms
    message: 'kubernetes-apiserver-endpoint-ci-ln-x5sv9rb-f76d1-4rzrp-master-0: failed
      to establish a TCP connection to 10.0.0.4:6443: dial tcp 10.0.0.4:6443: connect:
      connection refused'
    reason: TCPConnectError
    success: false
    time: "2021-01-13T20:09:34Z"
  - latency: 3.483578ms
    message: 'kubernetes-apiserver-endpoint-ci-ln-x5sv9rb-f76d1-4rzrp-master-0: failed
      to establish a TCP connection to 10.0.0.4:6443: dial tcp 10.0.0.4:6443: connect:
      connection refused'
    reason: TCPConnectError
    success: false
    time: "2021-01-13T20:08:34Z"
  outages:
  - end: "2021-01-13T20:11:34Z"
    endLogs:
    - latency: 2.032018ms
      message: 'kubernetes-apiserver-endpoint-ci-ln-x5sv9rb-f76d1-4rzrp-master-0:
        tcp connection to 10.0.0.4:6443 succeeded'
      reason: TCPConnect
      success: true
      time: "2021-01-13T20:11:34Z"
    - latency: 2.241775ms
      message: 'kubernetes-apiserver-endpoint-ci-ln-x5sv9rb-f76d1-4rzrp-master-0:
        failed to establish a TCP connection to 10.0.0.4:6443: dial tcp 10.0.0.4:6443:
        connect: connection refused'
      reason: TCPConnectError
      success: false
      time: "2021-01-13T20:10:34Z"
    - latency: 2.582129ms
      message: 'kubernetes-apiserver-endpoint-ci-ln-x5sv9rb-f76d1-4rzrp-master-0:
        failed to establish a TCP connection to 10.0.0.4:6443: dial tcp 10.0.0.4:6443:
        connect: connection refused'
      reason: TCPConnectError
      success: false
      time: "2021-01-13T20:09:34Z"
    - latency: 3.483578ms
      message: 'kubernetes-apiserver-endpoint-ci-ln-x5sv9rb-f76d1-4rzrp-master-0:
        failed to establish a TCP connection to 10.0.0.4:6443: dial tcp 10.0.0.4:6443:
        connect: connection refused'
      reason: TCPConnectError
      success: false
      time: "2021-01-13T20:08:34Z"
    message: Connectivity restored after 2m59.999789186s
    start: "2021-01-13T20:08:34Z"
    startLogs:
    - latency: 3.483578ms
      message: 'kubernetes-apiserver-endpoint-ci-ln-x5sv9rb-f76d1-4rzrp-master-0:
        failed to establish a TCP connection to 10.0.0.4:6443: dial tcp 10.0.0.4:6443:
        connect: connection refused'
      reason: TCPConnectError
      success: false
      time: "2021-01-13T20:08:34Z"
  successes:
  - latency: 2.845865ms
    message: 'kubernetes-apiserver-endpoint-ci-ln-x5sv9rb-f76d1-4rzrp-master-0: tcp
      connection to 10.0.0.4:6443 succeeded'
    reason: TCPConnect
    success: true
    time: "2021-01-13T21:14:34Z"
  - latency: 2.926345ms
    message: 'kubernetes-apiserver-endpoint-ci-ln-x5sv9rb-f76d1-4rzrp-master-0: tcp
      connection to 10.0.0.4:6443 succeeded'
    reason: TCPConnect
    success: true
    time: "2021-01-13T21:13:34Z"
  - latency: 2.895796ms
    message: 'kubernetes-apiserver-endpoint-ci-ln-x5sv9rb-f76d1-4rzrp-master-0: tcp
      connection to 10.0.0.4:6443 succeeded'
    reason: TCPConnect
    success: true
    time: "2021-01-13T21:12:34Z"
  - latency: 2.696844ms
    message: 'kubernetes-apiserver-endpoint-ci-ln-x5sv9rb-f76d1-4rzrp-master-0: tcp
      connection to 10.0.0.4:6443 succeeded'
    reason: TCPConnect
    success: true
    time: "2021-01-13T21:11:34Z"
  - latency: 1.502064ms
    message: 'kubernetes-apiserver-endpoint-ci-ln-x5sv9rb-f76d1-4rzrp-master-0: tcp
      connection to 10.0.0.4:6443 succeeded'
    reason: TCPConnect
    success: true
    time: "2021-01-13T21:10:34Z"
  - latency: 1.388857ms
    message: 'kubernetes-apiserver-endpoint-ci-ln-x5sv9rb-f76d1-4rzrp-master-0: tcp
      connection to 10.0.0.4:6443 succeeded'
    reason: TCPConnect
    success: true
    time: "2021-01-13T21:09:34Z"
  - latency: 1.906383ms
    message: 'kubernetes-apiserver-endpoint-ci-ln-x5sv9rb-f76d1-4rzrp-master-0: tcp
      connection to 10.0.0.4:6443 succeeded'
    reason: TCPConnect
    success: true
    time: "2021-01-13T21:08:34Z"
  - latency: 2.089073ms
    message: 'kubernetes-apiserver-endpoint-ci-ln-x5sv9rb-f76d1-4rzrp-master-0: tcp
      connection to 10.0.0.4:6443 succeeded'
    reason: TCPConnect
    success: true
    time: "2021-01-13T21:07:34Z"
  - latency: 2.156994ms
    message: 'kubernetes-apiserver-endpoint-ci-ln-x5sv9rb-f76d1-4rzrp-master-0: tcp
      connection to 10.0.0.4:6443 succeeded'
    reason: TCPConnect
    success: true
    time: "2021-01-13T21:06:34Z"
  - latency: 1.777043ms
    message: 'kubernetes-apiserver-endpoint-ci-ln-x5sv9rb-f76d1-4rzrp-master-0: tcp
      connection to 10.0.0.4:6443 succeeded'
    reason: TCPConnect
    success: true
    time: "2021-01-13T21:05:34Z"

Red Hat logoGithubRedditYoutubeTwitter

学习

尝试、购买和销售

社区

关于红帽文档

通过我们的产品和服务，以及可以信赖的内容，帮助红帽用户创新并实现他们的目标。

让开源更具包容性

红帽致力于替换我们的代码、文档和 Web 属性中存在问题的语言。欲了解更多详情，请参阅红帽博客.

關於紅帽

我们提供强化的解决方案，使企业能够更轻松地跨平台和环境（从核心数据中心到网络边缘）工作。

© 2024 Red Hat, Inc.