Helm模板不包含有关serviceMonitor的信息

Question

我正在尝试部署带有服务监视器的入口控制器，我使用的helm值文件看起来像这样：

controller:
  replicaCount: 3
  minAvailable: 1

  config:
    use-forwarded-headers: "true"
    use-proxy-protocol: "true"
    keep-alive: "3600"
  service:
    externalTrafficPolicy: Local
    type: LoadBalancer
  metrics:
    enabled: true
    serviceMonitor:
      enabled: true

rbac:
  create: true

serviceAccount:
  create: true
  name: nginx-ingress-serviceaccount

当我使用提供的值文件运行helm模板时，服务监视器不可见。

helm template ingress-nginx/ingress-nginx --values values.yaml --version "4.0.5"

有没有人有类似的问题？提前感谢您的回复。

Answer 1

ServiceMonitor有3个条件需要填充，请确保您的群集和配置满足以下条件：https://github.com/kubernetes/ingress-nginx/blob/6299c39842c31ff1e17d72503003ca36e2976a9a/charts/ingress-nginx/templates/controller-servicemonitor.yaml#L1

您的集群应支持:monitoring.coreos.com oring.coreos.com/v1 API版本

如果使用不具备API条件的较旧图表版本，则可以使用当前values.yaml部署ServiceMonitor

helm template ingress-nginx/ingress-nginx --values values.yaml --version "3.15.2" | grep -i mon
# Source: ingress-nginx/templates/controller-servicemonitor.yaml
apiVersion: monitoring.coreos.com/v1
kind: ServiceMonitor

另外，请注意：https://helm.sh/docs/helm/helm_template/

Render chart templates locally and display the output.

Any values that would normally be looked up or retrieved in-cluster will be faked locally. Additionally, none of the server-side testing of chart validity (e.g. whether an API is supported) is done.

这意味着如果您在计算机上运行命令行，它将永远不会显示ServiceMonitor，除非您有一个支持monitoring.coreos.com/v1的本地k8s集群或者您也伪造了它:)如下所示

helm template ingress-nginx/ingress-nginx --values values.yaml --version "4.0.5" --api-versions "monitoring.coreos.com/v1" | grep -i mon
# Source: ingress-nginx/templates/controller-servicemonitor.yaml
apiVersion: monitoring.coreos.com/v1
kind: ServiceMonitor