无法在k8s 1.15中安装堆栈

Question

在蔚蓝中运行着kubernetes 1.15。

当我的一个或多个应用程序/吊舱在kubernetes中关闭时，我需要一个基本警报(电子邮件/松弛通知)。

举个例子，我让https://cert-manager.io/docs/在多个集群中运行(托管在azure中)，如果它停止运行，我希望得到一个警报(电子邮件/松弛通知)。

根据这一员额：

How do I set up a hook to send an email on Kubernetes pod restart?

它似乎得到了一个电子邮件警报，我需要安装Prometheus + Grafana访问web-ui并配置警报，因此我需要：

https://github.com/prometheus-community/helm-charts/tree/main/charts/kube-prometheus-stack

https://artifacthub.io/packages/helm/prometheus-community/kube-prometheus-stack

我试过：

helm version
version.BuildInfo{Version:"v3.1.2", GitCommit:"d878d4d45863e42fd5cff6743294a11d28a9abce", GitTreeState:"clean", GoVersion:"go1.13.8"}


helm repo add prometheus-community https://prometheus-community.github.io/helm-charts
helm repo add stable https://kubernetes-charts.storage.googleapis.com/
helm repo update

helm install kube-prometheus-stack prometheus-community/kube-prometheus-stack --namespace monitoring

但这意味着：

Error: failed to install CRD crds/crd-alertmanager.yaml: unable to recognize "": no matches for kind "CustomResourceDefinition" in version "apiextensions.k8s.io/v1"

这里有一些关于如何手动创建crds的指南：

https://github.com/prometheus-community/helm-charts/tree/main/charts/kube-prometheus-stack#helm-fails-to-create-crds

但这应该是必要的，只有当运行舵机2.x，我不是，我运行3.1.2。

另外，如果我尝试手动安装它们，我会得到：

$ kubectl apply -f https://raw.githubusercontent.com/prometheus-operator/prometheus-operator/release-0.42/example/prometheus-operator-crd/monitoring.coreos.com_alertmanagers.yaml
error: unable to recognize "https://raw.githubusercontent.com/prometheus-operator/prometheus-operator/release-0.42/example/prometheus-operator-crd/monitoring.coreos.com_alertmanagers.yaml": no matches for kind "CustomResourceDefinition" in version "apiextensions.k8s.io/v1"
$ kubectl apply -f https://raw.githubusercontent.com/prometheus-operator/prometheus-operator/release-0.42/example/prometheus-operator-crd/monitoring.coreos.com_podmonitors.yaml
error: unable to recognize "https://raw.githubusercontent.com/prometheus-operator/prometheus-operator/release-0.42/example/prometheus-operator-crd/monitoring.coreos.com_podmonitors.yaml": no matches for kind "CustomResourceDefinition" in version "apiextensions.k8s.io/v1"
$ kubectl apply -f https://raw.githubusercontent.com/prometheus-operator/prometheus-operator/release-0.42/example/prometheus-operator-crd/monitoring.coreos.com_prometheuses.yaml
error: unable to recognize "https://raw.githubusercontent.com/prometheus-operator/prometheus-operator/release-0.42/example/prometheus-operator-crd/monitoring.coreos.com_prometheuses.yaml": no matches for kind "CustomResourceDefinition" in version "apiextensions.k8s.io/v1"
...

此外，我还找到了这个kube堆栈兼容性矩阵：

https://github.com/prometheus-operator/kube-prometheus#compatibility

但是，matris的版本与我得到的版本不匹配：

$ helm search repo prometheus-community/kube-prometheus-stack --versions
NAME                                        CHART VERSION   APP VERSION DESCRIPTION                                       
prometheus-community/kube-prometheus-stack  10.1.2          0.42.1      kube-prometheus-stack collects Kubernetes manif...
prometheus-community/kube-prometheus-stack  10.1.1          0.42.1      kube-prometheus-stack collects Kubernetes manif...
prometheus-community/kube-prometheus-stack  10.1.0          0.42.1      kube-prometheus-stack collects Kubernetes manif...
prometheus-community/kube-prometheus-stack  10.0.2          0.42.1      kube-prometheus-stack collects Kubernetes manif...
prometheus-community/kube-prometheus-stack  10.0.1          0.42.1      kube-prometheus-stack collects Kubernetes manif...

看来这可能是安装普罗米修斯的第三种方法

任何投入都很感谢。

更新：

随机选择以前的主要版本(9.4.10)似乎有效：

$ helm install kube-prometheus-stack prometheus-community/kube-prometheus-stack --namespace monitoring --version 9.4.10
manifest_sorter.go:192: info: skipping unknown hook: "crd-install"
manifest_sorter.go:192: info: skipping unknown hook: "crd-install"
manifest_sorter.go:192: info: skipping unknown hook: "crd-install"
manifest_sorter.go:192: info: skipping unknown hook: "crd-install"
manifest_sorter.go:192: info: skipping unknown hook: "crd-install"
manifest_sorter.go:192: info: skipping unknown hook: "crd-install"
NAME: kube-prometheus-stack
LAST DEPLOYED: Fri Oct 23 15:15:03 2020
NAMESPACE: monitoring
STATUS: deployed
REVISION: 1
NOTES:
kube-prometheus-stack has been installed. Check its status by running:
  kubectl --namespace monitoring get pods -l "release=kube-prometheus-stack"

Visit https://github.com/prometheus-operator/kube-prometheus for instructions on how to create & configure Alertmanager and Prometheus instances using the Operator.

在较旧的k8s版本上安装组件时，猜测尝试和错误是可行的，尽管与兼容性矩阵有很大的关系。

Answer 1

基于库贝-普罗米修斯-堆栈回购，这个舵图是限制在K8s版本1.16.0或以上；

kubeVersion：">=1.16.0-0“

尽管github说先决条件为Kubernetes 1.10+ with Beta APIs，但在内部，舵图检查kube版本是否为1.16.0或更高。

因此，我相信，您需要在升级K8s集群上尝试这一点。

如果升级集群不是一个选项，也许您可以尝试这个过时的版本。

https://github.com/helm/charts/tree/master/stable/prometheus