Configure monitoring for namespaces and pods

cloudNativeFullStack

applicationMonitoring

As part of getting started with Kubernetes monitoring, you might want to configure monitoring for namespaces and pods.

For more configuration options, see below.

Monitor all namespaces except selected pods

To disable monitoring for selected pods, annotate the pods that should be excluded, as in the example below.

1...
2metadata:
3  annotations:
4    ...
5    oneagent.dynatrace.com/inject: "false"

For more pod annotation options, see Pod annotation list.

Monitor only specific namespaces

If you don't want Dynatrace Operator to inject OneAgent in all namespaces, you can set the namespaceSelector parameter in the DynaKube custom resource, and enable monitoring for specific namespaces that have the chosen label.

To label namespaces, use the command below, making sure to replace the placeholder with your own value.

1kubectl label namespace <my_namespace> monitor=app

To enable monitoring for the namespace that was just labelled, edit the DynaKube custom resource file as in the example below.

1...
2namespaceSelector:
3  matchLabels:
4    monitor: app

For details, see Labels and selectors.

To add exceptions for specific pods within the selected namespaces, you can annotate the respective pods.

Exclude specific namespaces from being monitored

To enable this option, edit the DynaKube custom resource file as in the example below.

1...
2spec:
3  namespaceSelector:
4    matchExpressions:
5    - key: LabelKey
6      operator: NotIn
7      values:
8      - LabelValue

1metadata:
2  name: dynatrace
3  labels:
4    kubernetes.io/metadata.name=dynatrace

1...
2spec:
3  namespaceSelector:
4    matchExpressions:
5    - key: kubernetes.io/metadata.name
6      operator: NotIn
7      values:
8      - dynatrace

The webhook will inject every namespace that matches all namespaceselector.

For details, see Resources that support set-based requirements.

Monitor only specific pods

Dynatrace Operator version 0.8.0+

Dynatrace Operator can be set to monitor namespaces without injecting into any pods, so you can choose which pods to monitor.

To enable this option

Pod annotation list

Example annotations:

1...
2metadata:
3  annotations:
4    oneagent.dynatrace.com/technologies: "java,nginx"
5    oneagent.dynatrace.com/flavor: "musl"
6    oneagent.dynatrace.com/install-path: "/dynatrace"
7    oneagent.dynatrace.com/installer-url: "https://my-custom-url/route/file.zip"