This page describes how to install the Cluster Agent using the Kubernetes CLI which is an alternative to Install the Cluster Agent with Helm Charts.
Requirements
Before you begin, verify that you have:
- Installed kubectl >= 1.16
- Met the requirements described here: Cluster Agent Requirements and Supported Environments
Installation Procedure
If you have not already installed the
metrics-server
, then install it. See https://github.com/kubernetes-sigs/metrics-server for the most recent installation instructions.kubectl apply -f https://github.com/kubernetes-sigs/metrics-server/releases/latest/download/components.yaml
Download the Kubernetes or OpenShift Cluster Agent bundle from the Download portal, unzip the contents of the bundle to the current directory:
unzip appdynamics-cluster-agent-alpine-linux-<version>.zip
Create a
namespace
forappdynamics
in your cluster:kubectl create namespace appdynamics
Install the Cluster Agent Operator using the correct Kubernetes and OpenShift version (where applicable):
kubectl create -f cluster-agent-operator.yaml
kubectl create -f cluster-agent-operator-openshift.yaml
kubectl create -f cluster-agent-operator-openshift-1.15-or-less.yaml
You can also install Cluster Agent Operator from OpenShift OperatorHub in your OpenShift cluster.
Based on the Account Access Key for the Controller, create the Controller Access Key Secret that the Cluster Agent reports to:
kubectl -n appdynamics create secret generic cluster-agent-secret --from-literal=controller-key=<access-key>
Edit
cluster-agent.yaml
to set the AppDynamics Controller details for the Cluster Agent to report to.
a. Set thensToMonitor
(deprecated) ornsToMonitorRegex
options to include the namespaces you want to monitor.
b. Set the image tag to the version you are installing. Refer to Docker Hub for the latest version of the image tag.
For additional configuration tasks, such as configuring SSL for on-premises Controllers, proxy support, or pull secrets, see Configure the Cluster Agent.This example assumes the use of the pre-built Cluster Agent image on Docker Hub. See Cluster Agent Container Image to build your own image.
apiVersion: cluster.appdynamics.com/v1alpha1 kind: Clusteragent metadata: name: k8s-cluster-agent namespace: appdynamics spec: appName: "dev-cluster" controllerUrl: "http://mycontroller.com:8080" account: "my-account" # docker image info where, <version> is the image tag version that you are installing image: "docker.io/appdynamics/cluster-agent:<version>" serviceAccountName: appdynamics-cluster-agent nsToMonitor: [appdynamics,namespace1,namespace2] stdoutLogging: "true"
Install the Cluster Agent:
kubectl create -f cluster-agent.yaml
See Validate the Cluster Agent Installation to validate and troubleshoot the installation. Once the install is validated, see Container Platforms for options to install App Server Agents in applications in the cluster.
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