我有microk 8 s v1.22.2运行在Ubuntu 20.04.3 LTS上。/etc/hosts
的输出:
127.0.0.1 localhost
127.0.1.1 main
摘自microk8s status
:
addons:
enabled:
dashboard # The Kubernetes dashboard
ha-cluster # Configure high availability on the current node
ingress # Ingress controller for external access
metrics-server # K8s Metrics Server for API access to service metrics
我检查了正在运行的 Jmeter 板(kubectl get all --all-namespaces
):
NAMESPACE NAME READY STATUS RESTARTS AGE
kube-system pod/calico-node-2jltr 1/1 Running 0 23m
kube-system pod/calico-kube-controllers-f744bf684-d77hv 1/1 Running 0 23m
kube-system pod/metrics-server-85df567dd8-jd6gj 1/1 Running 0 22m
kube-system pod/kubernetes-dashboard-59699458b-pb5jb 1/1 Running 0 21m
kube-system pod/dashboard-metrics-scraper-58d4977855-94nsp 1/1 Running 0 21m
ingress pod/nginx-ingress-microk8s-controller-qf5pm 1/1 Running 0 21m
NAMESPACE NAME TYPE CLUSTER-IP EXTERNAL-IP PORT(S) AGE
default service/kubernetes ClusterIP 10.152.183.1 <none> 443/TCP 23m
kube-system service/metrics-server ClusterIP 10.152.183.81 <none> 443/TCP 22m
kube-system service/kubernetes-dashboard ClusterIP 10.152.183.103 <none> 443/TCP 22m
kube-system service/dashboard-metrics-scraper ClusterIP 10.152.183.197 <none> 8000/TCP 22m
NAMESPACE NAME DESIRED CURRENT READY UP-TO-DATE AVAILABLE NODE SELECTOR AGE
kube-system daemonset.apps/calico-node 1 1 1 1 1 kubernetes.io/os=linux 23m
ingress daemonset.apps/nginx-ingress-microk8s-controller 1 1 1 1 1 <none> 22m
NAMESPACE NAME READY UP-TO-DATE AVAILABLE AGE
kube-system deployment.apps/calico-kube-controllers 1/1 1 1 23m
kube-system deployment.apps/metrics-server 1/1 1 1 22m
kube-system deployment.apps/kubernetes-dashboard 1/1 1 1 22m
kube-system deployment.apps/dashboard-metrics-scraper 1/1 1 1 22m
NAMESPACE NAME DESIRED CURRENT READY AGE
kube-system replicaset.apps/calico-kube-controllers-69d7f794d9 0 0 0 23m
kube-system replicaset.apps/calico-kube-controllers-f744bf684 1 1 1 23m
kube-system replicaset.apps/metrics-server-85df567dd8 1 1 1 22m
kube-system replicaset.apps/kubernetes-dashboard-59699458b 1 1 1 21m
kube-system replicaset.apps/dashboard-metrics-scraper-58d4977855 1 1 1 21m
我想在本地网络中公开microk 8 s控制面板,以便通过http://main/dashboard/
访问它
为此,我执行了以下nano ingress.yaml
:
apiVersion: extensions/v1beta1
kind: Ingress
metadata:
annotations:
kubernetes.io/ingress.class: public
nginx.ingress.kubernetes.io/backend-protocol: "HTTPS"
name: dashboard
namespace: kube-system
spec:
rules:
- host: main
http:
paths:
- backend:
serviceName: kubernetes-dashboard
servicePort: 443
path: /
通过kubectl apply -f ingress.yaml
启用ingress-config时出现以下错误:
error: unable to recognize "ingress.yaml": no matches for kind "Ingress" in version "extensions/v1beta1"
帮助将不胜感激,谢谢!
更新:@harsh-manvar指出了配置版本中的一个不匹配。我已经将ingress.yaml重写为一个非常精简的版本:
apiVersion: networking.k8s.io/v1
kind: Ingress
metadata:
name: dashboard
namespace: kube-system
spec:
rules:
- http:
paths:
- path: /dashboard
pathType: Prefix
backend:
service:
name: kubernetes-dashboard
port:
number: 443
应用此命令可以正常工作,同时也创建了入口规则。
NAMESPACE NAME CLASS HOSTS ADDRESS PORTS AGE
kube-system dashboard public * 127.0.0.1 80 11m
但是,当我通过http://<ip-of-kubernetes-master>/dashboard
访问 Jmeter 板时,我得到了一个400
错误。
来自入口控制器的日志:
192.168.0.123 - - [10/Oct/2021:21:38:47 +0000] "GET /dashboard HTTP/1.1" 400 54 "-" "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/94.0.4606.71 Safari/537.36" 466 0.002 [kube-system-kubernetes-dashboard-443] [] 10.1.76.3:8443 48 0.000 400 ca0946230759edfbaaf9d94f3d5c959a
Jmeter 板是否也需要使用microk8s proxy
来暴露?我以为入口控制器会处理这个问题,还是我误解了这一点?
3条答案
按热度按时间093gszye1#
要修复错误
error: unable to recognize "ingress.yaml": no matches for kind "Ingress" in version "extensions/v1beta1
,您需要将apiVersion
设置为networking.k8s.io/v1
。从Kubernetes v1.16 article about deprecated APIs:现在转到第二个问题,您需要添加一些注解,并对Ingress定义进行一些修改,以使dashboard在microk 8 s集群上正确显示:
nginx.ingress.kubernetes.io/rewrite-target: /$2
annotationnginx.ingress.kubernetes.io/configuration-snippet: | rewrite ^(/dashboard)$ $1/ redirect;
注解path: /dashboard
更改为path: /dashboard(/|$)(.*)
我们需要它们将请求正确转发到后端pod-good explanation in this article:
注意:“nginx.ingress.kubernetes.io/rewrite-target“注解会在将请求转发到后端Pod之前重写URL。在**/dashboard(/|$)(.)表示路径**,**(.)存储访问Kubernetes Jmeter 板时生成的动态URL。“nginx.ingress.kubernetes.io/rewrite-target”注解会在将请求转发到kubernetes-dashboard服务之前替换URL中捕获的数据。“nginx.ingress.kubernetes.io/configuration-snippet“注解会重写URL以添加一个尾部斜杠(“/”)仅当访问ALB-URL/ Jmeter 板**时。
此外,我们还需要另外两项更改:
nginx.ingress.kubernetes.io/backend-protocol: "HTTPS"
注解,以告知NGINX入口使用HTTP与 Jmeter 板服务通信kubernetes.io/ingress.class: public
注解to use NGINX Ingress created by microk8singress
plugin实现以上所有内容后,最终的YAML文件如下所示:
它应该工作正常。不需要运行
microk8s proxy
命令。hgc7kmma2#
这是由于入口API版本不匹配。
您正在运行v1.22.2,而YAML中API版本较旧。
好例子:https://kubernetes.io/docs/tasks/access-application-cluster/ingress-minikube/
您在YAML中使用的是较旧的入口API版本
extensions/v1beta1
。您需要根据正在运行的入口版本和K8s版本更改此设置。
这适用于K8s中的版本1.19,也适用于1.22
示例:
参考:https://kubernetes.io/docs/concepts/services-networking/ingress/
xtupzzrd3#
**如果您在尝试安装AWS ALB控制器〈2.0时遇到此错误!**会发生以下情况:ALB控制器v1.x.x使用
networking.k8s.io/v1beta1
API,该API在k8s的新版本中被删除(https://kubernetes.io/blog/2021/07/14/upcoming-changes-in-kubernetes-1-22/#api-changes)所有beta版入口API(扩展/v1 beta1和networking.k8s.io/v1beta1API版本)