Istio 安装配置 Kiali 仪表板

Istio 和几个遥测应用做了集成。 遥测能帮你了解服务网格的结构、展示网络的拓扑结构、分析网格的健康状态。
使用下面说明部署 Kiali 仪表板、 以及 Prometheus、 Grafana、 还有 Jaeger。

1、安装 Kiali 和其他插件，等待部署完成

[root@k8s-master ~]# cd /usr/local/istio-1.15.6
[root@k8s-master istio-1.15.6]# kubectl apply -f samples/addons
[root@k8s-master istio-1.15.6]# kubectl rollout status deployment/kiali -n istio-system

2、访问 Kiali 仪表板

[root@k8s-master istio-1.15.6]# istioctl dashboard kiali --address 192.168.1.59 -p 20001

http://192.168.1.59:20001/kiali
Failed to open browser; open http://192.168.1.59:20001/kiali in your browser.

此时创建的 service 不提供外部访问，我们修改 service 来暴露 NodePort 以支持外部访问

[root@k8s-master istio-1.15.6]# kubectl -n istio-system edit svc kiali

在 spec.ports 的 http 节点添加 nodePort: 31001，并且修改 spec.type 的值为 NodePort，保存退出后配置生效即可通过 nodePort 端口访问 Kiali

[root@k8s-master istio-1.15.6]# kubectl -n istio-system edit svc kiali
# Please edit the object below. Lines beginning with a '#' will be ignored,
# and an empty file will abort the edit. If an error occurs while saving this file will be
# reopened with the relevant failures.
#
apiVersion: v1
kind: Service
metadata:
  annotations:
    kubectl.kubernetes.io/last-applied-configuration: |
      {"apiVersion":"v1","kind":"Service","metadata":{"annotations":{},"labels":{"app":"kiali","app.kubernetes.io/instance":"kiali","app.kubernetes.io/managed-by":"Helm","app.kubernetes.io/name":"kiali","app.kubernetes.io/part-of":"kiali","app.kubernetes.io/version":"v1.55.1","helm.sh/chart":"kiali-server-1.55.1","version":"v1.55.1"},"name":"kiali","namespace":"istio-system"},"spec":{"ports":[{"name":"http","port":20001,"protocol":"TCP"},{"name":"http-metrics","port":9090,"protocol":"TCP"}],"selector":{"app.kubernetes.io/instance":"kiali","app.kubernetes.io/name":"kiali"}}}
  creationTimestamp: "2023-04-06T14:45:20Z"
  labels:
    app: kiali
    app.kubernetes.io/instance: kiali
    app.kubernetes.io/managed-by: Helm
    app.kubernetes.io/name: kiali
    app.kubernetes.io/part-of: kiali
    app.kubernetes.io/version: v1.55.1
    helm.sh/chart: kiali-server-1.55.1
    version: v1.55.1
  name: kiali
  namespace: istio-system
  resourceVersion: "2183945"
  uid: 731e8ea1-5e8a-415e-a140-b335e3b843b0
spec:
  clusterIP: 10.108.49.233
  clusterIPs:
  - 10.108.49.233
  internalTrafficPolicy: Cluster
  ipFamilies:
  - IPv4
  ipFamilyPolicy: SingleStack
  ports:
  - name: http
    port: 20001
    protocol: TCP
    targetPort: 20001
    nodePort: 31001
  - name: http-metrics
    port: 9090
    protocol: TCP
    targetPort: 9090
  selector:
    app.kubernetes.io/instance: kiali
    app.kubernetes.io/name: kiali
  sessionAffinity: None
  type: NodePort #ClusterIP
status:
  loadBalancer: {}