Getting error while Installing the Cluster Agent with the Kubernetes CLI

[Loganathan.T]

I am trying to Install the Cluster Agent with the Kubernetes CLI

I am getting the below error 

#kubectl create -f cluster-agent.yaml
error: error validating "cluster-agent.yaml": error validating data: [ValidationError(Clusteragent.spec): unknown field "account" in com.appdynamics.v1alpha1.Clusteragent.spec, ValidationError(Clusteragent.spec): unknown field "appName" in com.appdynamics.v1alpha1.Clusteragent.spec, ValidationError(Clusteragent.spec): unknown field "controllerUrl" in com.appdynamics.v1alpha1.Clusteragent.spec, ValidationError(Clusteragent.spec): unknown field "serviceAccountName" in com.appdynamics.v1alpha1.Clusteragent.spec]; if you choose to ignore these errors, turn validation off with --validate=false

When i change the apiVersion: appdynamics.com/v1

kubectl create -f cluster-agent.yaml
error: resource mapping not found for name: "k8s-cluster-agent" namespace: "appdynamics" from "cluster-agent.yaml": no matches for kind "Clusteragent" in version "appdynamics.com/v1"
ensure CRDs are installed first

Please help me to resolve this

kubectl version

Client Version: v1.24.0
Kustomize Version: v4.5.4
Server Version: v1.22.6

[Ryan.Paredez]

Hi @Loganathan.T,

I'm going to do more searching for those errors. In the meantime, I wanted to share our AppD Docs page on installing Cluster Agents: https://docs.appdynamics.com/22.5/en/infrastructure-visibility/monitor-kubernetes-with-the-cluster-a...

Let me know if those offered any help in the meantime.

Best,

Ryan

[Loganathan.T · Accepted solution]

Thank you @Ryan.Paredez 

I am able to install cluster agent by using helm charts method. Followed the link you have provided

https://docs.appdynamics.com/22.5/en/infrastructure-visibility/monitor-kubernetes-with-the-cluster-a...

.

 I got the error 

Error: INSTALLATION FAILED: rendered manifests contain a resource that already exists. Unable to continue with install: APIService "v1beta1.metrics.k8s.io" in namespace "" exists and cannot be imported into the current release: invalid ownership metadata; label validation error: missing key "app.kubernetes.io/managed-by": must be set to "Helm"; annotation validation error: missing key "meta.helm.sh/release-name": must be set to "appdclusteragent"; annotation validation error: missing key "meta.helm.sh/release-namespace": must be set to "appdynamics"

Since the Metrics server already installed by default in AKS, i am unable to install it. So i disabled it in the values-ca1.yam as below

# Subcharts boolean install switches
install:
metrics-server: false

Now Cluster Agent is reporting to the Controller. Thank for the support.