• 4.4 Script a build in Maven
  • Learning Objectives
  • EXERCISE: Run a Maven build

4.4 Script a build in Maven

Learning Objectives

By the end of this lesson you will be able to:

• Script a build in Maven that packages software so that it can be deployed.

EXERCISE: Run a Maven build

1. From the AWSCLI home directory, download and unzip Maven

   “` $ cd /home/ec2-user

   “`

   “` $ sudo wget http://apache.etoak.com/maven/binaries/apache-maven-3.0.4-bin.zip

   “`

   “` $ unzip apache-maven-3.0.4-bin.zip

   “`

2. Go to the build directory, make a directory called maven and change to this directory.

   “` $ cd /home/ec2-user/continuous_integration_example/software/build

   “`

   “` $ mkdir maven

   “`

   “` $ cd maven

   “`

3. Type mvn from the command line

   /home/ec2-user/apache-maven-3.0.4/bin/mvn

   You should receive a message like this:

   [ERROR] No goals have been specified for this build.

4. From /home/ec2-user/continuous_integration_example/software/build/maven, do a git clone.

   “` $ git clone git@github.com:student29/devcenter-embedded-tomcat.git

   “`

5. Change directory to devcenter-embedded-tomcat

   “` $ cd /home/ec2-user/continuous_integration_example/software/build/maven/devcenter-embedded-tomcat

   “`

6. Create a Maven build file called mypom.xml

   “` $ sudo vim mypom.xml

   “`

7. Enter the Maven contents below in the mypom.xml (Originally from https://github.com/heroku/devcenter-embedded-tomcat/blob/master/pom.xml)

   <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd"> <modelVersion>4.0.0</modelVersion> <groupId>com.heroku.sample</groupId> <artifactId>embeddedTomcatSample</artifactId> <version>1.0-SNAPSHOT</version> <name>embeddedTomcatSample Maven Webapp</name> <url>http://maven.apache.org</url> <dependencies> <dependency> <groupId>org.apache.tomcat.embed</groupId> <artifactId>tomcat-embed-core</artifactId> <version>7.0.22</version> </dependency> <dependency> <groupId>org.apache.tomcat.embed</groupId> <artifactId>tomcat-embed-logging-juli</artifactId> <version>7.0.22</version> </dependency> <dependency> <groupId>org.apache.tomcat.embed</groupId> <artifactId>tomcat-embed-jasper</artifactId> <version>7.0.22</version> </dependency> <dependency> <groupId>org.apache.tomcat</groupId> <artifactId>tomcat-jasper</artifactId> <version>7.0.22</version> </dependency> <dependency> <groupId>org.apache.tomcat</groupId> <artifactId>tomcat-jasper-el</artifactId> <version>7.0.22</version> </dependency> <dependency> <groupId>org.apache.tomcat</groupId> <artifactId>tomcat-jsp-api</artifactId> <version>7.0.22</version> </dependency> </dependencies> <build> <finalName>embeddedTomcatSample</finalName> <plugins> <plugin> <groupId>org.codehaus.mojo</groupId> <artifactId>appassembler-maven-plugin</artifactId> <version>1.1.1</version> <configuration> <assembleDirectory>target</assembleDirectory> <programs> <program> <mainClass>launch.Main</mainClass> <name>webapp</name> </program> </programs> </configuration> <executions> <execution> <phase>package</phase> <goals> <goal>assemble</goal> </goals> </execution> </executions> </plugin> </plugins> </build> </project>

8. cd /home/ec2-user/continuous_integration_example/software/build/maven/devcenter-embedded-tomcat/src/main/java/launch

9. Open port 8180 in EC2 Security Group (e.g. AWSCLI00-Ec2SecurityGroup…)

10. Type mvn from the command line

    /home/ec2-user/apache-maven-3.0.4/bin/mvn package

11. Start the web application

    sh target/bin/webapp

12. Run the web application. Open your web browser to the following URL (your DNS will be different): http://ec2-107-21-81-107.compute-1.amazonaws.com:8180/