Java Getting Started with ASM


You can monitor application security for Java apps running in Docker, Kubernetes, AWS ECS, and AWS Fargate.

In general, setting up Application Security Management (ASM) involves:

  1. Identifying which services to enable ASM on.
  2. Updating to the latest Datadog library (the most recent APM tracing library).
  3. Enabling the library to collect the application security data from the services and send it to Datadog.
  4. Triggering security signals in your application and seeing how Datadog displays the resulting information.


  • The Datadog Agent is installed and configured for your application’s operating system or container, cloud, or virtual environment.
  • Datadog APM is configured for your application or service, and traces are being received by Datadog.

Get started

  1. Update your Datadog Java library to at least version 0.94.0:

    wget -O dd-java-agent.jar ''

    For information about which language and framework versions are supported by the library, see Compatibility.

  2. Run your Java application with ASM enabled. From the command line:

    java -javaagent:/path/to/dd-java-agent.jar -Ddd.appsec.enabled=true -Ddd.service=<MY SERVICE> -Ddd.env=<MY_ENV> -jar path/to/app.jar

    Or one of the following methods, depending on where your application runs:

    Note: Read-only file systems are not currently supported. The application must have access to a writable /tmp directory.

    Update your configuration container for APM by adding the following argument in your docker run command:

    docker run [...] -e DD_APPSEC_ENABLED=true [...] 

    Add the following environment variable value to your container Dockerfile:


    Update your deployment configuration file for APM and add the ASM environment variable:

            - name: <CONTAINER_NAME>
              image: <CONTAINER_IMAGE>/<TAG>
                - name: DD_APPSEC_ENABLED
                  value: "true"

    Update your ECS task definition JSON file, by adding this in the environment section:

    "environment": [
        "name": "DD_APPSEC_ENABLED",
        "value": "true"

    Set the -Ddd.appsec.enabled flag or the DD_APPSEC_ENABLED environment variable to true in your service invocation:

    java -javaagent:dd-java-agent.jar \
         -Ddd.appsec.enabled=true \
         -jar <YOUR_SERVICE>.jar \

    The library collects security data from your application and sends it to the Agent, which sends it to Datadog, where out-of-the-box detection rules flag attacker techniques and potential misconfigurations so you can take steps to remediate.

  3. To see Application Security Management threat detection in action, send known attack patterns to your application. For example, trigger the Security Scanner Detected rule by running a file that contains the following curl script:

    for ((i=1;i<=200;i++)); 
    # Target existing service’s routes
    curl https://your-application-url/existing-route -A dd-test-scanner-log;
    # Target non existing service’s routes
    curl https://your-application-url/non-existing-route -A dd-test-scanner-log;

    Note: The dd-test-scanner-log value is supported in the most recent releases.

    A few minutes after you enable your application and exercise it, threat information appears in the Application Trace and Signals Explorer in Datadog.

Security Signal details page showing tags, metrics, suggested next steps, and attacker IP addresses associated with a threat.

Further Reading