topic Re: Kubernetes cluster deployed with option host monitoring however oneagent is deployed in fullstack mode on nodes in Container platforms

Kubernetes cluster deployed with option host monitoring however oneagent is deployed in fullstack mode on nodes

AurelienGravier — Fri, 26 May 2023 14:38:23 GMT

Hello members,

I deployed Dynatrace on AKS cluster with host monitoring mode in order to cover infrastructure monitoring on cluster nodes :

https://www.dynatrace.com/support/help/shortlink/dto-deploy-options-k8s#host

My dynakube ressource is based on template hostMonitoring.yaml :

https://github.com/Dynatrace/dynatrace-operator/blob/v0.11.0/assets/samples/hostMonitoring.yaml

But Oneagent nodes appear in full stack mode instead of infra_only on Dynatrace and the consumption of host units is like a full stack mode :

Do you think it's a abnormal behaviour or it's a specificity of kubernetes instrumentation ?

Thank you.

Re: Kubernetes cluster deployed with option host monitoring however oneagent is deployed in fullstack mode on nodes

AurelienGravier — Fri, 26 May 2023 14:45:08 GMT

Hello members,

FYI, I have solved my issue by adding the following configuration on the oneagent section in my dynakube custom ressource yaml file :

# Optional: Adds custom arguments to the OneAgent installer
# For a list of available options, see https://www.dynatrace.com/support/help/shortlink/linux-custom-installation
# For a list of the limitations for OneAgents in Docker, see https://www.dynatrace.com/support/help/shortlink/oneagent-docker#limitations
#

args:
- "--set-infra-only=true"
- "--set-host-group=_A_AppName_E_Prod"
- "--set-network-zone=eu.azure.westeurope"

After apply the new version of dynakube resource yaml , nodes appears in INFRA_ONLY mode.

Regards.

Re: Kubernetes cluster deployed with option host monitoring however oneagent is deployed in fullstack mode on nodes

danijela — Thu, 03 Apr 2025 10:53:07 GMT

Hello @AurelienGravier did you create new yaml or you changed the existing one?

I have the same issues with agents that are in full stack mode and also I need to push the to specific network zone.

Could you help mw?

Re: Kubernetes cluster deployed with option host monitoring however oneagent is deployed in fullstack mode on nodes

Theodore_x86 — Thu, 03 Apr 2025 11:19:12 GMT

Hello @danijela

I thing it's like @AurelienGravier mentioned above. You just have to put the arguments on the dynakube file.

Deleting the dynakube resource and applying it again after the changes, should suffice.

Theodore

Re: Kubernetes cluster deployed with option host monitoring however oneagent is deployed in fullstack mode on nodes

danijela — Thu, 03 Apr 2025 11:24:32 GMT

By default I have this file:

kubectl get dynakube aksdynatracetest -n dynatrace -o yaml

apiVersion: dynatrace.com/v1beta3
kind: DynaKube
metadata:
annotations:
feature.dynatrace.com/automatic-kubernetes-api-monitoring: "true"
helm.sh/hook: post-install, post-upgrade
creationTimestamp: "2025-03-25T21:14:52Z"
generation: 1
name: aksdynatracetest
namespace: dynatrace
resourceVersion: "5317219"
uid: 35caddf7-0862-4dd4-b851-ac610ea3d672
spec:
activeGate:
capabilities:
- routing
- kubernetes-monitoring
- dynatrace-api
resources:
StartPeriod: 1200000000000
Test:
- /usr/bin/watchdog-healthcheck64
Timeout: 30000000000
imageID: .live.dynatrace.com/linux/oneagent:1.309.66-raw
instances:
aks-linux-14005532-vmss000000:

There is a lot of configuration that comes in this file.
I installed this kubernetes agent via AKS Operator extension from Marketplace.

Should I change this file?

Re: Kubernetes cluster deployed with option host monitoring however oneagent is deployed in fullstack mode on nodes

Theodore_x86 — Thu, 03 Apr 2025 12:31:13 GMT

Hello @danijela. Yes, you need to add some arguments.

Check this page:

https://docs.dynatrace.com/docs/ingest-from/setup-on-k8s/reference/dynakube-parameters

It explains how to add arguments and other parametes on your dynakube file.

Re: Kubernetes cluster deployed with option host monitoring however oneagent is deployed in fullstack mode on nodes

danijela — Thu, 03 Apr 2025 14:06:52 GMT

I added the arguments.

Once for host group and infra-only are picked up, but not the network zone.

Re: Kubernetes cluster deployed with option host monitoring however oneagent is deployed in fullstack mode on nodes

AurelienGravier — Fri, 04 Apr 2025 16:17:06 GMT

Hello @danijela

The networkZone is directly available on the "spec" section of the dynakube.yaml :

I recommend using the kubernetes app to deploy your AKS cluster, it helps to download a preconfigured dynakube resource depending on the type of deployment (cloud native, full stack, infra ....)

Regard Aurélien.