As an alternative to using system properties or controller-info.xml to configure the application, tier, and node name, or other agent settings, you can use environment variables. Environment variables give you an additional option for configuring the agent based on dynamically set values.    

About Environment Variables

To configure the agent with environment variables, simply set the value of the environment variables listed below to the value you want to use in the agent.

For example, if you set the value of the APPDYNAMICS_AGENT_NODE_NAME variable, as below, the agent automatically takes the value of node23 as its node name. 

export APPDYNAMICS_AGENT_NODE_NAME=node23

When settings are configured in different. Environment variable, system property and then controller-info.xml. The agent checks each for settings, and for a particular settings,  uses the setting for the first of these (given the order of priority) that is not empty.

List of Variables

The following environment properties can be used today to configure the agent.

APPDYNAMICS_CONTROLLER_HOST_NAME
APPDYNAMICS_CONTROLLER_PORT
APPDYNAMICS_CONTROLLER_SSL_ENABLED

APPDYNAMICS_AGENT_APPLICATION_NAME
APPDYNAMICS_AGENT_TIER_NAME
APPDYNAMICS_AGENT_NODE_NAME

APPDYNAMICS_AGENT_ACCOUNT_NAME_ENV_VAR
APPDYNAMICS_AGENT_ACCOUNT_ACCESS_KEY_ENV_VAR

APPDYNAMICS_AGENT_UNIQUE_HOST_ID_ENV_VAR

APPDYNAMICS_AGENT_BASE_DIR

Example

The following example would be resolved to a tierName=tier1 and a nodeName=node32

export APPDYNAMICS_AGENT_NODE_NAME=node23
java … -Dmytier.name=tier1 –-Dappdynamics.agent.tierName=$mytier.name
 

Related product doc links

For app and machine agent config properties

Machine Agent Configuration Properties

Java App Agent Configuration Properties

FAQS

Q: What is the order of precedence of system properties, environment variables, and controller-info.xml.

A: 

Q: What happens if the settings conflict?

A: The order is followed and the first one that is non-empty is picked up.

Q: The above list covers many, but not all, of the system properties that are in the product docs. Is there one environment variable that corresponds to every property?

A: These are all the environment variables that we support.

Q: Are there additional environment variables to document that do not have corresponding properties?

A: No.

Any Dev Followups?

N/A

Contributors

Tom Rabaut
Vinay Srini
Michael Margulis