Settig up pom.xml for using Elastic APM agent for Java

pom.xml

<!-- 
EAK Docker Compose environment
==============================
https://github.com/yidinghan/eak

Dockerfile example
==================
FROM openjdk:11-jre-slim
VOLUME /tmp
WORKDIR /service
COPY target/*.jar service.jar
COPY target/elastic/elastic-apm-agent.jar elastic-apm-agent.jar
ENTRYPOINT exec java -server \
-javaagent:elastic-apm-agent.jar \
$JAVA_OPTS \
-jar service.jar

Environment variables reqired to start APM agent in java service
================================================================
ELASTIC_APM_SERVICE_NAME=<service name, eg: test-service>
ELASTIC_APM_APPLICATION_PACKAGES=<package to collect, eg: com.example>
ELASTIC_APM_SERVER_URL=...
ELASTIC_APM_SECRET_TOKEN=...
-->

<!-- Copy elastic apm plugin -->

<plugin>
    <groupId>org.apache.maven.plugins</groupId>
    <artifactId>maven-dependency-plugin</artifactId>
    <version>3.1.1</version>
    <executions>
        <execution>
            <id>copy</id>
            <phase>package</phase>
            <goals>
                <goal>copy</goal>
            </goals>
        </execution>
    </executions>
    <configuration>
        <artifactItems>
            <artifactItem>
                <groupId>co.elastic.apm</groupId>
                <artifactId>elastic-apm-agent</artifactId>
                <version>RELEASE</version>
                <type>jar</type>
                <overWrite>false</overWrite>
                <outputDirectory>${project.build.directory}/elastic</outputDirectory>
                <destFileName>elastic-apm-agent.jar</destFileName>
            </artifactItem>
        </artifactItems>
    </configuration>
</plugin>