DevOps Build

1. Open your GitHub account (Register if needed)
2. Create new repository "maven-test" + README
3. Clone your repository to your client

git clone https://your-git-url

5. Create GitHub issue and a branch to create a new maven application
6. Pull your repository and initialize a maven demo application

mvn -B archetype:generate -DarchetypeGroupId=org.apache.maven.archetypes -DgroupId=hu.bme.mit.devops -DartifactId=maven-app

6. Extend pom.xml with the following part

<properties>
    <maven.compiler.source>1.6</maven.compiler.source>
    <maven.compiler.target>1.6</maven.compiler.target>
  </properties>

6. Build and package the code

mvn package

7. Try to execute the artefact

java -jar %%jar file name%%

9. Add mainClass name

<project>
  ...
  <build>
		<plugins>
			<plugin>
				<groupId>org.apache.maven.plugins</groupId>
				<artifactId>maven-jar-plugin</artifactId>
				<configuration>
					<archive>
						<manifest>
							<mainClass>hu.bme.mit.devops.App</mainClass>
						</manifest>
					</archive>
				</configuration>
			</plugin>
		</plugins>
	</build>
</project>

9. Execute again

java -jar %%jar file name%%

10. Commit and push your code, review and close your issue, while merge your code.

git commit, merge

13. Create a new issue and branch to create a Gradle application

mkdir gradle-app 
cd gradle-app
gradle init --type java-application

Set Java compatibility level in build.gradle file

apply plugin: 'java'
...
compileJava {
    sourceCompatibility = '1.8'
    targetCompatibility = '1.8'
}

Run the application

gradle run

14. Commit and push your code, review and close your issue, while merge your code.
15. Create an issue for maven to gradle conversion
16. Convert your maven project into a gradle project and try to execute it

gradle init --type pom
gradle tasks
gradle run

19. Extend build.gradle

apply plugin: 'application'
mainClassName = 'hu.bme.mit.devops.App'

19. Create new repository for the demo SpringBoot RESTFul application
20. Clone spring example

git clone https://github.com/szatmari/devops-build.git

20. Set new origin

git remote -v
git remote add myorigin https://your-springboot-git-url
git remote -v
git pull myorigin master --allow-unrelated-histories

21. Commit and push to myorigin
22. Run the SpringBoot REST App

gradle bootRun

22. Test the application:

curl http://localhost:8080/greeting?name=Zoltan

24. Add dependency (src/main/java/hello/Greeting.java)

import org.joda.time.LocalTime;
...
    public String getContent() {
        LocalTime currentTime = new LocalTime();
        return content +" " + currentTime;
    }

24. Test the application again

curl http://localhost:8080/greeting?name=Zoltan