[英]Access Prometheus GUI on Kubernetes Cluster with Istio
[英]Can't access kubernetes cluster with Istio gateway
我有一個帶有 Istio 入口的 k8s 集群。 我部署了一個部署、服務、網關和一個虛擬服務,但我仍然無法從集群外部訪問我的服務。 我可以通過訪問指定的 nodePort 上的工作人員來訪問我的服務,但我希望 Istio 網關仍將偵聽我的主機上的端口 80,但它看起來不是那樣。 我在這里做錯了什么?
服務.yaml:
apiVersion: v1
kind: Service
metadata:
name: microservices-service
spec:
type: NodePort
selector:
app: microservices-deployment
ports:
- port: 5001
targetPort: 5001
nodePort: 30007
部署.yaml:
apiVersion: apps/v1
kind: Deployment
metadata:
name: microservices-deployment
labels:
app: microservices-deployment
spec:
replicas: 3
template:
metadata:
name: microservices-deployment
labels:
app: microservices-deployment
spec:
containers:
- name: microservices-deployment
image: *** private docker registry ***
imagePullPolicy: Always
ports:
- containerPort: 5001
restartPolicy: Always
imagePullSecrets:
- name: regcred
selector:
matchLabels:
app: microservices-deployment
入口.yaml:
apiVersion: networking.istio.io/v1alpha3
kind: Gateway
metadata:
name: microservices-gateway
spec:
selector:
istio: ingressgateway
servers:
- port:
number: 80
name: http
protocol: HTTP
hosts:
- "*"
---
apiVersion: networking.istio.io/v1alpha3
kind: VirtualService
metadata:
name: microservices
spec:
hosts:
- "*"
gateways:
- microservices-gateway
http:
- match:
route:
- destination:
host: *** master hostname ***
port:
number: 5001
非常感謝!
我檢查了您的配置,一切看起來都設置正確。 只有一個小錯誤需要修復,那就是您的虛擬服務。
改變它從
http:
- match:
route:
- destination:
host: *** master hostname ***
port:
number: 5001
到
http:
- route:
- destination:
host: microservices-service
port:
number: 5001
您應該可以使用 istio 網關 external-ip LoadBalancer/NodePort 訪問它。 更多關於它在這里。
kubectl get svc -n istio-system | grep istio-ingress
nginx 的快速示例,請注意我使用的是 LoadBalancer 而不是 NodePort。
apiVersion: apps/v1
kind: Deployment
metadata:
name: nginx1
spec:
selector:
matchLabels:
run: nginx1
replicas: 1
template:
metadata:
labels:
run: nginx1
app: frontend
spec:
containers:
- name: nginx1
image: nginx
ports:
- containerPort: 80
lifecycle:
postStart:
exec:
command: ["/bin/sh", "-c", "echo Hello nginx1 > /usr/share/nginx/html/index.html"]
---
apiVersion: v1
kind: Service
metadata:
name: nginx
labels:
app: frontend
spec:
ports:
- port: 80
protocol: TCP
selector:
app: frontend
---
apiVersion: networking.istio.io/v1alpha3
kind: Gateway
metadata:
name: nginx-gateway
spec:
selector:
istio: ingressgateway
servers:
- port:
number: 80
name: http
protocol: HTTP
hosts:
- "*"
---
apiVersion: networking.istio.io/v1alpha3
kind: VirtualService
metadata:
name: nginx-virtual
spec:
gateways:
- nginx-gateway
hosts:
- "*"
http:
- route:
- destination:
host: nginx.default.svc.cluster.local
port:
number: 80
kubectl get svc -n istio-system | grep ingress
istio-ingressgateway LoadBalancer xx.x.xx.xxx xx.xx.xx.xx 15021:30880/TCP,80:31983/TCP,443:31510/TCP,15443:32267/TCP 2d2h
用 curl 測試
curl -v xx.xx.xx.xx/
GET / HTTP/1.1
HTTP/1.1 200 OK
Hello nginx1
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