无法在k8s 1.15中安装kube-prometheus-stack

Question

如何在Kubernetes吊舱重启上设置钩子发送电子邮件？

它似乎收到了一个电子邮件警报，我需要安装Prometheus+Grafana，访问web-ui，并根据以下内容配置警报：

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

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

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

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

但只有在运行Helm2.x时才有必要，我不是，我运行的是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"
...

$ 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...

$ 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.

我猜试错是在旧的k8s版本上安装东西时要走的路，尽管兼容性矩阵可能很好。

Answer 1

基于库贝-普罗米修斯-堆栈回购，此掌舵人图仅限于K8s 1.16.0或以上版本；

Kubeversion：“>=1.16.0-0”

尽管github自述文件称先决条件为Kubernetes 1.10+with Beta APIs，但在内部helm图表检查kube版本是否为1.16.0或更高。