如何访问 istio 创建的仪表板

How to access istio created dashboard

我在没有 helm 的 kubernetes 上安装了 istio

我可以看到 pods 并且服务是在 istio-system 命名空间中创建的。

创建了所有服务,如 grafana、Prometheus,并且不公开它们的端口。

由于创建了负载均衡器服务,因此在 AWS 中也创建了一个负载均衡器,我想通过新创建的负载均衡器端点从外部网络访问 grafana、prometheus 等仪表板,但无法从负载平衡器端点。

我尝试了 istio 文档推荐的端口转发:

kubectl -n istio-system port-forward $(kubectl -n istio-system get pod -l app=grafana -o jsonpath='{.items[0].metadata.name}') 3000:3000 & 

这些仅适用于 http://localhost:3000 but not accessible with http://publicip:3000

NAME                     TYPE           CLUSTER-IP       EXTERNAL-IP                                                              PORT(S)                                                                                                                                      AGE
grafana                  ClusterIP      172.20.192.71    <none>                                                                   3000/TCP                                                                                                                                     1m
istio-citadel            ClusterIP      172.20.111.103   <none>                                                                   8060/TCP,15014/TCP                                                                                                                           1m
istio-egressgateway      ClusterIP      172.20.123.112   <none>                                                                   80/TCP,443/TCP,15443/TCP                                                                                                                     1m
istio-galley             ClusterIP      172.20.45.229    <none>                                                                   443/TCP,15014/TCP,9901/TCP                                                                                                                   1m
istio-ingressgateway     LoadBalancer   172.20.94.157    xxxx-yyyy.us-west-2.elb.amazonaws.com   15020:31336/TCP,80:31380/TCP,443:31390/TCP,31400:31400/TCP,15029:32146/TCP,15030:30126/TCP,15031:31506/TCP,15032:30501/TCP,15443:31053/TCP   1m
istio-pilot              ClusterIP      172.20.27.87     <none>                                                                   15010/TCP,15011/TCP,8080/TCP,15014/TCP                                                                                                       1m
istio-policy             ClusterIP      172.20.222.108   <none>                                                                   9091/TCP,15004/TCP,15014/TCP                                                                                                                 1m
istio-sidecar-injector   ClusterIP      172.20.240.198   <none>                                                                   443/TCP                                                                                                                                      1m
istio-telemetry          ClusterIP      172.20.157.227   <none>                                                                   9091/TCP,15004/TCP,15014/TCP,42422/TCP                                                                                                       1m
jaeger-agent             ClusterIP      None             <none>                                                                   5775/UDP,6831/UDP,6832/UDP                                                                                                                   1m
jaeger-collector         ClusterIP      172.20.92.248    <none>                                                                   14267/TCP,14268/TCP                                                                                                                          1m
jaeger-query             ClusterIP      172.20.168.197   <none>                                                                   16686/TCP                                                                                                                                    1m
kiali                    ClusterIP      172.20.236.20    <none>                                                                   20001/TCP                                                                                                                                    1m
prometheus               ClusterIP      172.20.21.205    <none>                                                                   9090/TCP                                                                                                                                     1m
tracing                  ClusterIP      172.20.231.66    <none>                                                                   80/TCP                                                                                                                                       1m
zipkin                   ClusterIP      172.20.200.32    <none>                                                                   9411/TCP                                                                                                                                     1m

如上所示,我正在尝试使用负载均衡器和端口转发访问 grafana 仪表板,但我没有获得 grafana 仪表板

kubectl -n istio-system  port-forward svc/kiali 20001

然后点击http://localhost:20001/kiali/

您可以创建 Istio Gateway and VirtualService 以便默认在端口 3000

上将您的请求转发到 grafana 服务 运行

首先,让我们检查一下grafanaistio-ingressgateway服务

kubectl get svc grafana istio-ingressgateway -n istio-system
NAME                   TYPE           CLUSTER-IP      EXTERNAL-IP                                                               PORT(S)                                                                                                                                      AGE
grafana                ClusterIP      100.71.67.105   <none>                                                                    3000/TCP                                                                                                                                     18h
istio-ingressgateway   LoadBalancer   100.64.42.106   <Public IP address>   15020:31766/TCP,80:31380/TCP,443:31390/TCP,31400:31400/TCP,15029:32576/TCP,15030:30728/TCP,15031:31037/TCP,15032:31613/TCP,15443:32501/TCP   18h

因此,我们有 grafana 运行 服务侦听端口 3000,默认 istio-ingressgateway LoadBalancer 服务 运行 分配 public ip 地址。

然后我们创建gateway来使用这个默认的LoadBalancer。

$ kubectl apply -f - <<EOF
apiVersion: networking.istio.io/v1alpha3
kind: Gateway
metadata:
  name: grafana-gateway
  namespace: istio-system # Use same namespace with backend service
spec:
  selector:
    istio: ingressgateway # use Istio default gateway implementation
  servers:
  - port:
      number: 80
      name: HTTP
      protocol: HTTP
    hosts:
    - "*"
EOF

然后为通过此网关进入的流量配置到 grafana service 的路由:

$ kubectl apply -f - <<EOF
apiVersion: networking.istio.io/v1alpha3
kind: VirtualService
metadata:
  name: grafana
  namespace: istio-system # Use same namespace with backend service
spec:
  hosts:
  - "*"
  gateways:
  - grafana-gateway # define gateway name
  http:
  - match:
    - uri:
        prefix: "/"
    route:
    - destination:
        port:
          number: 3000 # Backend service port
        host: grafana # Backend service name
EOF

然后点击 http://<public_ip_istio_ingressgateway>,您应该会看到 grafana 仪表板

希望对你有所帮助