cristianprofile / spring-boot-mvc-integration-test-using-docker-file

Spring boot mvc integration test using own docker image with maven docker plugin io.fabric8

Spring Boot MVC using io.fabric8 docker maven plugin

Use io.fabric8 docker plugin to be able to create integration test using a docker file. Using maven failsafe plugin will allow our application to create docker container and stop it inside maven integration-test phase

mvn clean install    

Configure io.fabric8 docker maven plugin build start image inside a container and stop it after intregration test

Docker image will contain our jar file generated by maven and will start boot service using java -jar (see Dockerfile)

 # Start with a base image containing Java runtime
 FROM openjdk:8-jdk-alpine

 # Add Maintainer Info
 MAINTAINER cromero_el_madero <[e-mail]>

 # Make port 8080 available to the world outside this container
 EXPOSE 8080

 # The application's jar file
 ARG JAR_FILE=target/rest-demo-docker-0.0.3-SNAPSHOT.jar

# Add the application's jar to the container
ADD ${JAR_FILE} rest-demo-docker.jar
 
CMD java -jar rest-demo-docker.jar

io.fabric8 docker plugin configuration

Configure docker maven plugin mapping 8080 docker host to 8080. Run image in container waiting a 200 http code from http://localhost:8080/greeting

			<groupId>io.fabric8</groupId>
			<artifactId>docker-maven-plugin</artifactId>
			<version>0.30.0</version>

			<configuration>
				<verbose>true</verbose>
				<images>
					<image>
						<name>${docker.name}</name>
						<run>
							<ports>
								<port>8080:8080</port>
							</ports>
							<wait>
								<!-- Check for this URL to return a 200 return code .... -->
								<url>http://localhost:8080/greeting</url>
								<time>120000</time>
							</wait>
						</run>
					</image>
				</images>

Configure execution of docker maven plugin in pre-integration-test phase building docker image and starting container. After this integration test will be run. post-integration-test will run stop goal.

            </configuration>
			<executions>
				<execution>
					<id>container-start</id>
					<phase>pre-integration-test</phase>
					<goals>
						<goal>stop</goal>
						<goal>build</goal>
						<goal>start</goal>
					</goals>
				</execution>
				<execution>
					<id>container-stop</id>
					<phase>post-integration-test</phase>
					<goals>
						<goal>stop</goal>
					</goals>
				</execution>