刚刚安装了稳定/普罗米修斯图表，其值如下，我可以从 Pod 访问服务器前端，但不能从主机的 Web 浏览器访问。
我的values.yaml:
alertmanager:
ingress:
enabled: true
annotations:
kubernetes.io/ingress.class: nginx
hosts:
- localhost/alerts
server:
ingress:
enabled: true
annotations:
kubernetes.io/ingress.class: nginx
hosts:
- localhost/prom
pushgateway:
ingress:
enabled: true
annotations:
kubernetes.io/ingress.class: nginx
hosts:
- localhost/push
我使用 nginx 入口并创建入口，但由于某些未知原因，它似乎没有映射到服务。
一些数据:
我可以通过默认名称和 DNS 服务名称从入口 Pod(以及所有其他 Pod)访问服务器:
kubectl exec -it nginx-ingress-controller-5cb489cd48-t4dgv -- sh
/etc/nginx $ curl prometheus-server.default.svc.cluster.local
<a href="/graph">Found</a>
/etc/nginx $ curl prometheus-server
<a href="/graph">Found</a>
图表创建的事件入口列表:
kubectl get ingress
NAME HOSTS ADDRESS PORTS AGE
nginx-ingress localhost localhost 80 37h
prometheus-alertmanager localhost localhost 80 43m
prometheus-pushgateway localhost localhost 80 43m
prometheus-server localhost localhost 80 43m
活跃服务资源列表:
kubectl get svc
NAME TYPE CLUSTER-IP EXTERNAL-IP PORT(S) AGE
kubernetes ClusterIP 10.96.0.1 <none> 443/TCP 37h
nginx-deployment ClusterIP 10.100.1.167 <none> 80/TCP 37h
nginx-ingress-controller LoadBalancer 10.109.57.131 localhost 80:32382/TCP,443:30669/TCP 36h
nginx-ingress-default-backend ClusterIP 10.107.91.35 <none> 80/TCP 36h
php-deployment ClusterIP 10.105.73.26 <none> 9000/TCP 37h
prometheus-alertmanager ClusterIP 10.97.89.149 <none> 80/TCP 44m
prometheus-kube-state-metrics ClusterIP None <none> 80/TCP,81/TCP 44m
prometheus-node-exporter ClusterIP None <none> 9100/TCP 44m
prometheus-pushgateway ClusterIP 10.105.81.111 <none> 9091/TCP 44m
prometheus-server ClusterIP 10.108.225.187 <none> 80/TCP 44m
另一方面，如果我将子域声明为入口主机，则可以访问 Prometheus:
alertmanager:
ingress:
enabled: true
annotations:
kubernetes.io/ingress.class: nginx
hosts:
- alerts.localhost
server:
ingress:
enabled: true
annotations:
kubernetes.io/ingress.class: nginx
hosts:
- prom.localhost
pushgateway:
ingress:
enabled: true
annotations:
kubernetes.io/ingress.class: nginx
hosts:
- push.localhost
我做错了什么还是有什么问题？ 有什么建议吗？
提前致谢!
Helm 和 Kubernetes 的版本: Helm 3.0.3/Kubernetes 1.15.5(Mac 版 Docker，MacOS Catalina)
最佳答案
我重现了您的场景，并通过运行一些测试，我了解到这不会按照您希望的方式工作。这不是正确的实现方式。
让我们深入探讨一下。
您可以在入口中添加nginx.ingress.kubernetes.io/rewrite-target，如下例所示:
$ kubectl get ingresses. myprom-prometheus-pushgateway -oyaml
apiVersion: extensions/v1beta1
kind: Ingress
metadata:
annotations:
kubernetes.io/ingress.class: nginx
nginx.ingress.kubernetes.io/rewrite-target: /
creationTimestamp: "2020-02-18T09:51:32Z"
generation: 1
labels:
app: prometheus
chart: prometheus-10.4.0
component: pushgateway
heritage: Helm
release: myprom
name: myprom-prometheus-pushgateway
namespace: default
resourceVersion: "3239"
selfLink: /apis/extensions/v1beta1/namespaces/default/ingresses/myprom-prometheus-pushgateway
uid: 499372f4-52b1-4b37-982c-b52e70657d37
spec:
rules:
- host: localhost
http:
paths:
- backend:
serviceName: myprom-prometheus-pushgateway
servicePort: 9091
path: /push
status:
loadBalancer:
ingress:
- ip: 192.168.39.251
添加此内容后，您将能够按照您的意愿进行访问。不幸的是，完成此操作后，您将面临一个新问题。如果我们检查curl命令的html输出，我们可以看到:
<!DOCTYPE html>
<html lang="en">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
<meta name="robots" content="noindex,nofollow">
<title>Prometheus Pushgateway</title>
<link rel="shortcut icon" href="/static/favicon.ico?v=793293bdadd51fdaca69de5bb25637b0f93b656b">
<script src="/static/jquery-3.4.1.min.js?v=793293bdadd51fdaca69de5bb25637b0f93b656b"></script>
<script src="/static/bootstrap-4.3.1-dist/js/bootstrap.min.js?v=793293bdadd51fdaca69de5bb25637b0f93b656b"></script>
<script src="/static/functions.js?v=793293bdadd51fdaca69de5bb25637b0f93b656b"></script>
<link type="text/css" rel="stylesheet" href="/static/bootstrap-4.3.1-dist/css/bootstrap.min.css?v=793293bdadd51fdaca69de5bb25637b0f93b656b">
<link type="text/css" rel="stylesheet" href="/static/prometheus.css?v=793293bdadd51fdaca69de5bb25637b0f93b656b">
<link type="text/css" rel="stylesheet" href="/static/bootstrap4-glyphicons/css/bootstrap-glyphicons.min.css?v=793293bdadd51fdaca69de5bb25637b0f93b656b">
</head>
可以看出，例如，我们有 /static/jquery-3.4.1.min.js，因此这会将您的浏览器重定向到不同的位置。问题是你没有这个位置。
这就是为什么我建议您避免使用路径并坚持使用涉及使用子域的辅助解决方案。
alertmanager:
ingress:
enabled: true
annotations:
kubernetes.io/ingress.class: nginx
hosts:
- alerts.localhost
server:
ingress:
enabled: true
annotations:
kubernetes.io/ingress.class: nginx
hosts:
- prom.localhost
pushgateway:
ingress:
enabled: true
annotations:
kubernetes.io/ingress.class: nginx
hosts:
- push.localhost
关于kubernetes - 如何解决Prometheus图表Ingres/Service映射？，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/60232693/