Question

我正在尝试为IBM Cloud Private（ICP）上已安装的MessageSight服务设置TLS

已经安装了ICP和MessageSight，我试图查看MessageSight如何作为服务公开（是NodePort，LoadBalancer还是Externalname）

$kubectl get services 
NAME                              TYPE        CLUSTER-IP     EXTERNAL-IP     PORT(S)                       AGE
messagesight-messagesight-svc     ClusterIP   10.0.241.72    168.xx.xx.xxx   9089/TCP,1883/TCP,16102/TCP   9d
messagesight-messagesightui-svc   ClusterIP   10.0.139.199   168.xx.xx.xxx   9087/TCP                      9d

该类型指出它是一个ClusterIP，但是它具有一个外部IP。我一直认为，如果服务类型为ClusterIP，则外部IP将会为空。如果是LoadBalancer，我希望看到外部IP。

描述服务不提供任何其他信息

kubectl describe svc messagesight-messagesight-svc 
Name:              messagesight-messagesight-svc
Labels:            app=messagesight
                   chart=messagesight
                   heritage=Tiller
                   release=messagesight
Annotations:       <none>
Selector:          app=messagesight,release=messagesight
Type:              ClusterIP
IP:                10.0.241.72
External IPs:      168.xx.xx.xxx
Port:              adminport  9089/TCP
TargetPort:        9089/TCP
Endpoints:         10.1.66.1:9089
Port:              messaging-1883  1883/TCP
TargetPort:        1883/TCP
Endpoints:         10.1.66.1:1883
Port:              messaging-16102  16102/TCP
TargetPort:        16102/TCP
Endpoints:         10.1.66.1:16102
Session Affinity:  None
Events:            <none>

我能够通过外部IP和端口访问该服务，并且对它的工作方式感到困惑。

我安装了Jenkins设置进行观察，输出看起来不错，对我来说很有意义

$kubectl get services 
NAME                       TYPE       CLUSTER-IP     EXTERNAL-IP   PORT(S)                          AGE
jenkins-ibm-jenki   NodePort   10.0.241.156   <none>        8080:31058/TCP,50000:31155/TCP   1d

我可以看到类型是NodePort，它没有对应的externalIP。

对该服务的描述还使我清楚地了解到该服务属于NodePort类型

$kubectl describe svc jenkins-ibm-jenki 
Name:                     jenkins-ibm-jenki
Labels:                   app=jenkins-ibm-jenki
                          chart=ibm-jenkins-dev-1.0.2
                          component=jenkins-jenkins-master
                          heritage=Tiller
                          release=jenkins
Annotations:              helm.sh/created=1559696400
Selector:                 app=jenkins-ibm-jenki,component=jenkins-jenkins-master
Type:                     NodePort
IP:                       10.0.241.156
Port:                     http  8080/TCP
TargetPort:               8080/TCP
NodePort:                 http  31058/TCP
Endpoints:                10.1.66.89:8080
Port:                     slavelistener  50000/TCP
TargetPort:               50000/TCP
NodePort:                 slavelistener  31155/TCP
Endpoints:                10.1.66.89:50000
Session Affinity:         None
External Traffic Policy:  Cluster
Events:                   <none>

Answer 1

如documentation中所述：

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无法确定在集群上安装的Kubernetes服务的类型

1 个答案: