topic How does Dynatrace detect a master or worker node in Kubernetes/Openshift in Container platforms

How does Dynatrace detect a master or worker node in Kubernetes/Openshift

henk_stobbe — Fri, 10 Jun 2022 09:48:25 GMT

Hello,

How does the operator knows what a worker or a management node is and only adds oneAgent to workers?

KR Henk

Re: How does Dynatrace detect a master or worker node in Kubernetes/Openshift

henk_stobbe — Fri, 10 Jun 2022 10:12:56 GMT

Found it,

Out of the box all nodes get an oneAgent, if you do not want to monitor master nodes, you have to comment out below tolerations in the oneAgent part of the yaml. The default taint with noschedule is than respected.

taint = something not allowed

tolerations = something allowed (tollerated)

KR Henk

Re: How does Dynatrace detect a master or worker node in Kubernetes/Openshift

henk_stobbe — Fri, 10 Jun 2022 14:07:16 GMT

Hello,

To make this post complete, there is also a "bare bones" approach:

In the YAML you can also use node selector,

# Optional: node selector to control on which nodes the OneAgent will be deployed.
#
# nodeSelector: {}

KR Henk

Re: How does Dynatrace detect a master or worker node in Kubernetes/Openshift

dannemca — Fri, 10 Jun 2022 19:14:59 GMT

That's a good one!!