[英]Ingress to redirect to service from LB ip
I'm trying to create an Ingress
rule to redirect requests from LoadBalancer to Service.我正在尝试创建一个Ingress
规则以将请求从 LoadBalancer 重定向到服务。
apiVersion: extensions/v1beta1
kind: Ingress
metadata:
name: hostlessendpoint
spec:
rules:
- http:
paths:
- path: /hostless
backend:
serviceName: node-red
servicePort: 1880
The above yaml script is supposed to redirect all requests from https://LOAD_BALANCER_IP/hostless
to node-red
on port 1880
上面的 yaml 脚本应该将来自https://LOAD_BALANCER_IP/hostless
的所有请求重定向到端口1880
上的node-red
If I try to request the above URL, I got an error Cannot GET /hostless
.如果我尝试请求上述 URL,我收到错误Cannot GET /hostless
。 Requesting the root gives 404 page not found
.请求 root 给出404 page not found
。
I can access my services with the direct URL (eg. http://LOAD_BALANCER_IP:1880
will redirect to Node-red service).我可以通过直接 URL 访问我的服务(例如http://LOAD_BALANCER_IP:1880
将重定向到 Node-red 服务)。
Service yaml looks like that:服务 yaml 看起来像这样:
apiVersion: v1
kind: Service
metadata:
labels:
app: node-red
name: node-red
spec:
ports:
- name: "1880"
port: 1880
protocol: TCP
targetPort: 1880
selector:
app: node-red
sessionAffinity: None
type: LoadBalancer
How to use ingress
to reach a service whereas a custom port?如何使用ingress
来访问服务,而自定义端口?
Try setting a rewrite-target annotation, which will effectively rewrite /hostless
requests to /
, ie http://LOAD_BALANCER_IP:1880/hostless
externally to http://node-red:1880
internally.尝试设置重写目标注释,这将有效地将/hostless
请求重写为/
,即http://LOAD_BALANCER_IP:1880/hostless
外部到http://node-red:1880
内部。
For example:例如:
apiVersion: extensions/v1beta1
kind: Ingress
metadata:
annotations:
nginx.ingress.kubernetes.io/rewrite-target: /$2
name: hostlessendpoint
spec:
rules:
- http:
paths:
- path: /hostless(/|$)(.*)
backend:
serviceName: node-red
servicePort: 1880
See this link , assuming you are using Nginx ingress controller.请参阅此链接,假设您使用的是 Nginx 入口 controller。
I've found a way to make it works !我找到了一种使它起作用的方法!
apiVersion: extensions/v1beta1
kind: Ingress
metadata:
annotations:
cert-manager.io/cluster-issuer: letsencrypt-prod
traefik.ingress.kubernetes.io/redirect-entry-point: https
kubernetes.io/ingress.class: "traefik"
traefik.ingress.kubernetes.io/router.middlewares: "kube-system-traefik-stripprefix@kubernetescrd"
name: traefik-all
namespace: partner
spec:
rules:
- http:
paths:
- path: /
backend:
serviceName: nginx-demo
servicePort: 2222
- path: /node
backend:
serviceName: node-red
servicePort: 1880
---
apiVersion: traefik.containo.us/v1alpha1
kind: Middleware
metadata:
name: traefik-stripprefix
namespace: kube-system
spec:
stripPrefixRegex:
regex:
- "/[^/]+"
I use a middleware to remove the prefix as K3S Traefik does not support the traefik.ingress.kubernetes.io/rewrite-target
annotation.我使用中间件删除前缀,因为 K3S Traefik 不支持traefik.ingress.kubernetes.io/rewrite-target
注释。
With the above code, all trafic from LOAD_BALANCER_IP/*
will be redirected to nginx-demo:2222
service.使用上面的代码,来自LOAD_BALANCER_IP/*
的所有流量都将被重定向到nginx-demo:2222
服务。 All trafic from LOAD_BALANCER_IP/node/*
will be redicted to node-red:1880
service.来自LOAD_BALANCER_IP/node/*
的所有流量都将被重定向到node-red:1880
服务。
I hope this could help someone !我希望这可以帮助别人!
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