Setup App and API Protection for Java on AWS Fargate

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Overview

App and API Protection works by leveraging the Datadog Java library to monitor and secure your Java service. The library integrates seamlessly with your existing application without requiring code changes.

For detailed compatibility information, including supported Java versions, frameworks, and deployment environments, see Java Compatibility Requirements.

This guide explains how to set up App and API Protection (AAP) for Java applications. The setup involves:

Installing the Datadog Agent
Enabling App and API Protection monitoring
Running your Java application with the Datadog Agent
Verifying the setup

Prerequisites

AWS Fargate environment
Java application containerized with Docker
AWS CLI configured with appropriate permissions
Your Datadog API key
Datadog Java tracing library (see version requirements here)

1. Installing the Datadog Agent

Install the Datadog Agent in your Fargate task definition:

{
  "containerDefinitions": [
    {
      "name": "datadog-agent",
      "image": "public.ecr.aws/datadog/agent:latest",
      "environment": [
        {
          "name": "DD_API_KEY",
          "value": "<YOUR_API_KEY>"
        },
        {
          "name": "DD_APM_ENABLED",
          "value": "true"
        },
        {
          "name": "DD_APM_NON_LOCAL_TRAFFIC",
          "value": "true"
        }
      ]
    }
  ]
}

2. Enabling App and API Protection monitoring

Automatically enabling App and API Protection through Remote Configuration

APM Tracing cannot be disabled for the time being with remote config.

You can enable remote configuration on your services dashboard. Simply check the box for the service you want to enable App and API Protection for under "Activate on your APM services".

Manually enabling App and API Protection monitoring

Download the latest version of the Datadog Java library:

ADD 'https://dtdg.co/latest-java-tracer' /dd-java-agent.jar

APM Tracing Enabled

Update your task definition to include the Java agent and App and API Protection configuration:

{
  "containerDefinitions": [
    {
      "name": "your-java-app",
      "image": "your-java-app-image",
      "command": [
        "java",
        "-javaagent:/dd-java-agent.jar",
        "-Ddd.appsec.enabled=true",
        "-Ddd.service=<MY_SERVICE>",
        "-Ddd.env=<MY_ENV>",
        "-jar",
        "/app.jar"
      ]
    }
  ]
}

Update your task definition to include the Java agent and App and API Protection configuration:

{
  "containerDefinitions": [
    {
      "name": "your-java-app",
      "image": "your-java-app-image",
      "environment": [
        {
          "name": "DD_APPSEC_ENABLED",
          "value": "true"
        },
        {
          "name": "DD_SERVICE",
          "value": "<YOUR_SERVICE_NAME>"
        },
        {
          "name": "DD_ENV",
          "value": "<YOUR_ENVIRONMENT>"
        }
      ],
      "command": [
        "java",
        "-javaagent:/dd-java-agent.jar",
        "-jar",
        "/app.jar"
      ]
    }
  ]
}

APM Tracing Disabled

To disable APM tracing while keeping App and API Protection enabled, you must set the APM tracing variable to false.

Update your task definition to include the Java agent and App and API Protection configuration with APM tracing disabled:

{
  "containerDefinitions": [
    {
      "name": "your-java-app",
      "image": "your-java-app-image",
      "command": [
        "java",
        "-javaagent:/dd-java-agent.jar",
        "-Ddd.appsec.enabled=true",
        "-Ddd.apm.tracing.enabled=false",
        "-Ddd.service=<MY_SERVICE>",
        "-Ddd.env=<MY_ENV>",
        "-jar",
        "/app.jar"
      ]
    }
  ]
}

Update your task definition to include the Java agent and App and API Protection configuration with APM tracing disabled:

{
  "containerDefinitions": [
    {
      "name": "your-java-app",
      "image": "your-java-app-image",
      "environment": [
        {
          "name": "DD_APPSEC_ENABLED",
          "value": "true"
        },
        {
          "name": "DD_APM_TRACING_ENABLED",
          "value": "false"
        },
        {
          "name": "DD_SERVICE",
          "value": "<YOUR_SERVICE_NAME>"
        },
        {
          "name": "DD_ENV",
          "value": "<YOUR_ENVIRONMENT>"
        }
      ],
      "command": [
        "java",
        "-javaagent:/dd-java-agent.jar",
        "-jar",
        "/app.jar"
      ]
    }
  ]
}

3. Run your application

Deploy your Fargate task with the updated configuration:

aws ecs register-task-definition --cli-input-json file://task-definition.json
aws ecs run-task --cluster your-cluster --task-definition your-task-definition