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AppDynamics Agents for Kubernetes

Introduction

This Kubernetes YAML file deploys AppDynamics Agents as a Daemon Set within your Kubernetes Cluster and lets' you share the Java Agents across your PODs.

Deploy

The DaemonSet relies on the Docker Image found in the Docker AppDynamics Agents Repository.

  • Clone the Repository
  • Change the Docker Image Name to fit your needs
  • kubectl create -f appd-agents.yaml

Monitor Applications

To monitor an Application you have to tell it where to find the Agent and how it should be named in AppDynamics. A simple example is shown here:

apiVersion: extensions/v1beta1
kind: Deployment
metadata:
  name: liferay
  labels:
    app: liferay
spec:
  replicas: 1
  template:
    metadata:
      labels:
        app: liferay
    spec:
      containers:
      - name: liferay-container
        image: snasello/liferay-6.2
        volumeMounts:
          - mountPath: /app-agent
            name: app-agent
        env:
          - name: APPDYNAMICS_AGENT_APPLICATION_NAME
            value: Application
          - name: APPDYNAMICS_AGENT_TIER_NAME
            value: Tier
          - name: CATALINA_OPTS
            value: -Dappdynamics.agent.reuse.nodeName.prefix=$APPDYNAMICS_AGENT_TIER -Dappdynamics.agent.reuse.nodeName=true -Dappdynamics.force.default.ssl.certificate.validation=false -javaagent:/app-agent/javaagent.jar
      volumes:
        - name: app-agent
          hostPath:
            path: /opt/app-agent

You can change the different settings to fit your needs.

Notes:

  • When you scale up and down Nodes will be named based on -Dappdynamics.agent.reuse.nodeName.prefix and will be appended by a number
  • Nodes will be automatically marked as historical once the JVM shuts down gracefully