jer*_*n95 3 nginx kubernetes kubernetes-ingress nginx-ingress
我有一个 Kubernetes 集群，运行在 1 个主节点、2 个工作节点的 Linux 服务器上。我有一个 HAProxy 将我的请求转发到 Nginx 控制器。我的完整设置位于公司代理后面。该公司代理中启用了 DNS 条目。请求将到达 nginx 控制器，但不会转发到服务。我按照许多教程的描述安装了入口控制器，其中的文件位于https://github.com/kubernetes/ingress-nginx。
我是堆栈溢出的新手，所以如果我应该提供更具体的信息，请告诉我。我希望有人能帮助我解决我的问题，提前谢谢你：D
我的 Ingress 缺少地址：
Name: app-ingress
Namespace: default
Address:
Default backend: default-http-backend:80 (<none>)
Rules:
Host Path Backends
---- ---- --------
test.kubetest.lff.bybn.de
/abc app-service:80 (10.244.2.4:3000)
Annotations: kubernetes.io/ingress.class: nginx
Events: <none>
Deployment、Service 和 Ingress、IngressClass、ConfigMap 的 Yaml 文件
apiVersion: apps/v1
kind: Deployment
metadata:
labels:
run: app
name: app-blue
spec:
replicas: 1
selector:
matchLabels:
run: app
version: 0.0.1
template:
metadata:
labels:
run: app
version: 0.0.1
spec:
containers:
- name: app
image: errm/versions:0.0.1
ports:
- containerPort: 3000
----
apiVersion: v1
kind: Service
metadata:
name: app-service
spec:
selector:
run: app
version: 0.0.1
ports:
- name: http
port: 80
protocol: TCP
targetPort: 3000
---
apiVersion: networking.k8s.io/v1beta1
kind: Ingress
metadata:
name: app-ingress
namespace: default
annotations:
kubernetes.io/ingress.class: nginx
spec:
rules:
- host: test.kubetest.lff.bybn.de
http:
paths:
- path: /abc
backend:
serviceName: app-service
servicePort: 80
---
apiVersion: networking.k8s.io/v1beta1
kind: IngressClass
metadata:
name: nginx
# annotations:
# ingressclass.kubernetes.io/is-default-class: "true"
spec:
controller: nginx.org/ingress-controller
---
kind: ConfigMap
apiVersion: v1
metadata:
name: nginx-config
namespace: nginx-ingress
data:
来自集群外部的 Curl 和来自 Controller Pod 的日志
curl test.kubetest.lff.bybn.de/abc
% Total % Received % Xferd Average Speed Time Time Time Current
Dload Upload Total Spent Left Speed
100 93 0 93 0 0 1 0 --:--:-- 0:00:50 --:--:-- 26<html><body><h1>504 Gateway Time-out</h1>
The server didn't respond in time.
</body></html>
E0131 19:44:11.949261 1 reflector.go:138] /home/runner/work/kubernetes-ingress/kubernetes-ingress/internal/k8s/controller.go:574: Failed to watch *v1.Policy: failed to list *v1.Policy: the server could not find the requested resource (get policies.k8s.nginx.org)
E0131 19:45:06.894791 1 reflector.go:138] /home/runner/work/kubernetes-ingress/kubernetes-ingress/internal/k8s/controller.go:574: Failed to watch *v1.Policy: failed to list *v1.Policy: the server could not find the requested resource (get policies.k8s.nginx.org)
E0131 19:45:48.532075 1 reflector.go:138] /home/runner/work/kubernetes-ingress/kubernetes-ingress/internal/k8s/controller.go:574: Failed to watch *v1.Policy: failed to list *v1.Policy: the server could not find the requested resource (get policies.k8s.nginx.org)
10.48.25.57 - - [31/Jan/2021:19:46:35 +0000] "GET /abc HTTP/1.1" 499 0 "-" "curl/7.73.0" "-"
E0131 19:46:37.902444 1 reflector.go:138] /home/runner/work/kubernetes-ingress/kubernetes-ingress/internal/k8s/controller.go:574: Failed to watch *v1.Policy: failed to list *v1.Policy: the server could not find the requested resource (get policies.k8s.nginx.org)
E0131 19:47:15.346193 1 reflector.go:138] /home/runner/work/kubernetes-ingress/kubernetes-ingress/internal/k8s/controller.go:574: Failed to watch *v1.Policy: failed to list *v1.Policy: the server could not find the requested resource (get policies.k8s.nginx.org)
E0131 19:47:48.536636 1 reflector.go:138] /home/runner/work/kubernetes-ingress/kubernetes-ingress/internal/k8s/controller.go:574: Failed to watch *v1.Policy: failed to list *v1.Policy: the server could not find the requested resource (get policies.k8s.nginx.org)
E0131 19:48:21.890770 1 reflector.go:138] /home/runner/work/kubernetes-ingress/kubernetes-ingress/internal/k8s/controller.go:574: Failed to watch *v1.Policy: failed to list *v1.Policy: the server could not find the requested resource (get policies.k8s.nginx.org)
And*_*ndD 10
查看 Ingress 定义，我发现它缺少 ingress 类。您定义了一个 IngressClass 并注释为要使用的默认类，或者这可能是您的 Ingress 目前无法工作的原因。
Ingress 类基本上是一个类别，指定谁需要服务和管理 Ingress，这是必要的，因为在集群中您可以拥有多个 Ingress 控制器，每个控制器都有其规则和配置。
根据 Kubernetes 版本，可以使用入口上的注释来定义入口类（v1.18 之前），例如：
apiVersion: networking.k8s.io/v1beta1
kind: Ingress
metadata:
name: example-ingress
annotations:
kubernetes.io/ingress.class: nginx
spec:
...
或者使用整个资源，然后引用 Ingress，如文档中所示（https://kubernetes.io/docs/concepts/services-networking/ingress/#ingress-class）
即使在新版本的 Kubernetes 中，旧的注释可能仍然受支持，具体取决于控制器。
如果您不确定应该使用哪个入口类（应该由控制器定义），您可能在安装时决定了一个入口类，或者使用了默认的入口类（大多数情况下是 nginx）
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