As an alternative to using system properties or
controller-info.xml to configure the agent, you can use environment variables. Environment variables allow agent identity settings to be populated with dynamic environments which may be unique for the JVM.
To configure the agent with environment variables, set the value of the environment variables. Environment variables exist for most of the agent settings you can configure in the
controller-info.xml file, such as the application name, node name, and connection settings.
For example, set the node name for the agent using an environment variable using
APPDYNAMICS_AGENT_NODE_NAME. On Linux, you would enter this command:
When the agent subsequently starts up, the agent takes node23 as its node name. Typically, the environment variable would be set as part of the start-up routine of the JVM and populated with values determined at startup.
Environment Variables Used by the Agent
The Java Agent takes configuration settings from the following environment variables, when set:
|Environment Variable||Equivalent property|
|Unique host name|
Notice that not all configurable agent settings are configurable through environment variables. For those settings, you need to use system properties or
controller-info.xml, as described on Java Agent Configuration Properties.