monitoring.cereos.com/v1 servicemonitor资源名称不能为空

Question

我正试图按照此说明监控我的prometheus

https://logiq.ai/scraping-nginx-ingress-controller-metrics-using-helm-prometheus/

无论如何，我在尝试应用这个文件配置时遇到了一个问题

apiVersion: monitoring.coreos.com/v1
kind: ServiceMonitor
metadata:
labels:
app: kubernetes-ingress
name: service-monitor
namespace: nginx-ingress
spec:
endpoints:
- interval: 30s
path: /metrics
port: prometheus
namespaceSelector:
matchNames:
- logiq
selector:
matchLabels:
app: kubernetes-ingress

这是错误

error: error when retrieving current configuration of:
Resource: "monitoring.coreos.com/v1, Resource=servicemonitors", GroupVersionKind: "monitoring.coreos.com/v1, Kind=ServiceMonitor"
Name: "", Namespace: "default"
from server for: "servicemonitor.yaml": resource name may not be empty

我以为是关于CRD的，但我的monitoring.coreos.com已经安装了。

提前感谢

这是我的普罗米修斯kube集群

apiVersion: monitoring.coreos.com/v1
kind: Prometheus
metadata:
annotations:
meta.helm.sh/release-name: prometheus
meta.helm.sh/release-namespace: ingress
creationTimestamp: "2022-01-17T03:09:49Z"
generation: 1
labels:
app: kube-prometheus-stack-prometheus
app.kubernetes.io/managed-by: Helm
chart: kube-prometheus-stack-10.1.3
heritage: Helm
release: prometheus
name: prometheus-kube-prometheus-prometheus
namespace: ingress
resourceVersion: "2311107"
uid: 48a57afb-2d9a-4f9f-9885-33ca66c59b16
spec:
alerting:
alertmanagers:
- apiVersion: v2
name: prometheus-kube-prometheus-alertmanager
namespace: ingress
pathPrefix: /
port: web
baseImage: quay.io/prometheus/prometheus
enableAdminAPI: false
externalUrl: http://prometheus-kube-prometheus-prometheus.ingress:9090
listenLocal: false
logFormat: logfmt
logLevel: info
paused: false
podMonitorNamespaceSelector: {}
podMonitorSelector:
matchLabels:
release: prometheus
portName: web
probeNamespaceSelector: {}
probeSelector:
matchLabels:
release: prometheus
replicas: 1
retention: 10d
routePrefix: /
ruleNamespaceSelector: {}
ruleSelector:
matchLabels:
app: kube-prometheus-stack
release: prometheus
securityContext:
fsGroup: 2000
runAsGroup: 2000
runAsNonRoot: true
runAsUser: 1000
serviceAccountName: prometheus-kube-prometheus-prometheus
serviceMonitorNamespaceSelector: {}
serviceMonitorSelector:
matchLabels:
release: prometheus
version: v2.21.0

Answer 1

对于k8s资源，metadata.name是required字段。在应用metadata.name之前，您必须在资源YAML中提供它。

在metadata.namespace的情况下，如果不提供，则默认为default命名空间。

我认为在name和namespace字段之前有一些不需要的前导空格。

apiVersion: monitoring.coreos.com/v1
kind: ServiceMonitor
metadata:
name: service-monitor
namespace: nginx-ingress
labels:
app: kubernetes-ingress
spec:
endpoints:
- interval: 30s
path: /metrics
port: prometheus
namespaceSelector:
matchNames:
- logiq
selector:
matchLabels:
app: kubernetes-ingress

更新：

在您的PrometheusCR中，您设置了serviceMonitorSelector。

spec:
serviceMonitorSelector:
matchLabels:
release: prometheus

将这些标签添加到您的serviceMonitorCR。

apiVersion: monitoring.coreos.com/v1
kind: ServiceMonitor
metadata:
name: service-monitor
namespace: nginx-ingress
labels:
app: kubernetes-ingress
release: prometheus

或者，您也可以从普罗米修斯CR端更新serviceMonitorSelector。