Jib-Demo

This project is a demonstration of how your Gitlab-CI can push your docker images to Gitlab Registry using Google Jib and Maven.

The POM file

To push the images to the Gitlab Registry, we need to authenticate on the registry, so we pass the data inside the element <auth>, passing the <username> as gitlab-ci-token and the <password> as the token retrive from the CI job.

<build>
	<plugins>
		<plugin>
			<groupId>org.springframework.boot</groupId>
			<artifactId>spring-boot-maven-plugin</artifactId>
		</plugin>
		<plugin>
			<groupId>com.google.cloud.tools</groupId>
			<artifactId>jib-maven-plugin</artifactId>
			<version>1.1.2</version>
			<configuration>
				<to>
					<image>${env.CI_REGISTRY}/${env.CI_PROJECT_PATH}</image>
					<auth>
						<username>gitlab-ci-token</username>
						<password>${env.CI_JOB_TOKEN}</password>
					</auth>
				</to>
			</configuration>
		</plugin>
	</plugins>
</build>

It's possible to also add multiple tags to the image. The element <to> has a element <tags>, wich is a list of <tag>, so you can have as many tags as you like, the way you like.

<to>
    ...
    <tags>
    	<tag>${project.version}</tag>
    	<tag>latest</tag>
    </tags>
    ...
</to>