Spring

Step 1: Download Thundra Agent
Download the Thundra agent here.
Step 2: Start Your Application
Start your Java application with the Thundra agent jar by -javaagent VM argument.
java -javaagent:<path-to-thundra-agent> -jar <your-app-jar> ...
Step 3: Configure the Dockerfile
The following example shows how the application is configured with Dockerfile:
FROM openjdk:8
RUN mkdir -p /app
ADD target/thundra-container-demo-0.1.0.jar /app/thundra-container-demo.jar
ADD thundra-agent-bootstrap.jar /app/thundra-agent-bootstrap.jar
WORKDIR /app
EXPOSE 8080
ENTRYPOINT [ "java", "-javaagent:thundra-agent-bootstrap.jar", "-jar", "thundra-container-demo.jar" ]
Step 4: Configure the Integration
You need to configure your integration work properly and send your application data to Thundra. You will set the following configurations:
Thundra API key
Application Name
You can make these configurations using three different ways:
Environment Variables
export THUNDRA_APIKEY=<your-api-key> && export THUNDRA_AGENT_APPLICATION_NAME=<your-app-name> && java -javaagent:<path-to-thundra-agent> -jar <your-app-jar> ...
System Properties
java -javaagent:<path-to-thundra-agent> -Dthundra.apiKey=<your-api-key> -Dthundra.agent.application.name=<your-app-name> -jar <your-app-jar> ...
Configuration File
You need to put thundra-config.yml in your artifact, which is picked up from classpath automatically.
thundra:
 apiKey: <your-api-key>
 agent:
   application:
     name: <your-app-name>
As an example, the thundra-config.yml can be put under the src/main/resources/ folder in the Maven project structure (a software project management tool) so the Thundra agent will be able to directly read its classpath.
The Thundra agent supports the following Spring frameworks without any additional configuration needed:
Spring Web (4.x, 5.x)
Spring Boot (1.x, 2.x)

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Outline

Step 1: Download Thundra Agent

Step 2: Start Your Application

Step 3: Configure the Dockerfile

Step 4: Configure the Integration