Kubernetes新手求助：如何查找已创建的Service Monitor
kubectl get services Hey there! I get it, starting out with Kubernetes and Prometheus Operator can throw up little gotchas like this—let's sort this out right away.
Why kubectl get services doesn't work
The key thing to remember here is that ServiceMonitor is not a standard Kubernetes Service resource. It's a Custom Resource Definition (CRD) provided by the Prometheus Operator, built specifically to tell Prometheus which services to scrape metrics from. So commands meant for built-in resources like services won't pick it up.
How to actually find your ServiceMonitor
Here are the exact commands you need to use:
First, confirm the ServiceMonitor CRD exists (this ensures the Prometheus Operator is installed correctly):
kubectl get crd servicemonitors.monitoring.coreos.comIf this returns a valid result, the CRD is installed—perfect, move to the next step. If not, you'll need to install the Prometheus Operator first before your ServiceMonitor can be recognized.
List all ServiceMonitors across all namespaces:
kubectl get servicemonitors -AThe
-Aflag pulls resources from every namespace, which is handy if you're not 100% sure where you created the ServiceMonitor.List ServiceMonitors in a specific namespace:
If you know the namespace where you deployed the resource, narrow it down to save time:kubectl get servicemonitors -n your-target-namespaceUse a shorter alias for quicker access:
Most Kubernetes users usesmas a shorthand forservicemonitors, so you can also run:kubectl get sm -A
Bonus: Dig into your ServiceMonitor's details
To verify if your ServiceMonitor is configured correctly (like which services it's targeting, scrape ports, or any configuration issues), use the describe command:
kubectl describe servicemonitor your-sm-name -n your-target-namespace
This will show you full details about the resource, including events or misconfigurations that might be preventing it from working as expected.
内容的提问来源于stack exchange，提问作者kevin
