[Spring Boot] problemas ao usar o plugin spotify

Senhores ao rodar o comando

mvn -DskipTests clean package docker:build

tenho o seguinte erro…

[INFO] — maven-compiler-plugin:3.1:compile (default-compile) @ springbootproperties —
[INFO] Changes detected - recompiling the module!
[INFO] Compiling 4 source files to /home/ubuntu/projetos/spring-boot-propriedades-casadocodigo/target/classes
[INFO]
[INFO] — maven-resources-plugin:2.6:testResources (default-testResources) @ springbootproperties —
[INFO] Using ‘UTF-8’ encoding to copy filtered resources.
[INFO] skip non existing resourceDirectory /home/ubuntu/projetos/spring-boot-propriedades-casadocodigo/src/test/resources
[INFO]
[INFO] — maven-compiler-plugin:3.1:testCompile (default-testCompile) @ springbootproperties —
[INFO] Changes detected - recompiling the module!
[INFO] Compiling 1 source file to /home/ubuntu/projetos/spring-boot-propriedades-casadocodigo/target/test-classes
[INFO]
[INFO] — maven-surefire-plugin:2.18.1:test (default-test) @ springbootproperties —
[INFO] Tests are skipped.
[INFO]
[INFO] — maven-jar-plugin:2.6:jar (default-jar) @ springbootproperties —
[INFO] Building jar: /home/ubuntu/projetos/spring-boot-propriedades-casadocodigo/target/springbootproperties-0.0.1-SNAPSHOT.jar
[INFO]
[INFO] — spring-boot-maven-plugin:1.5.3.RELEASE:repackage (default) @ springbootproperties —
[INFO]
[INFO] — docker-maven-plugin:1.0.0:build (default-cli) @ springbootproperties —
[INFO] Using authentication suppliers: [ConfigFileRegistryAuthSupplier]
[INFO] Copying /home/ubuntu/projetos/spring-boot-propriedades-casadocodigo/target/springbootproperties-0.0.1-SNAPSHOT.jar -> /home/ubuntu/projetos/spring-boot-propriedades-casadocodigo/target/docker/springbootproperties-0.0.1-SNAPSHOT.jar
[INFO] Building image greendogdelivery
[INFO] ------------------------------------------------------------------------
[INFO] BUILD FAILURE
[INFO] ------------------------------------------------------------------------
[INFO] Total time: 6.656 s
[INFO] Finished at: 2017-11-01T18:26:35-02:00
[INFO] Final Memory: 50M/390M
[INFO] ------------------------------------------------------------------------
[ERROR] Failed to execute goal com.spotify:docker-maven-plugin:1.0.0:build (default-cli) on project springbootproperties: Exception caught: Request error: POST unix://localhost:80/build?t=greendogdelivery: 400, body: {“message”:“Dockerfile parse error line 5: unknown instruction: “/SPRINGBOOTPROPERTIES-0.0.1-SNAPSHOT.JAR”]”}: HTTP 400 Bad Request -> [Help 1]
[ERROR]
[ERROR] To see the full stack trace of the errors, re-run Maven with the -e switch.
[ERROR] Re-run Maven using the -X switch to enable full debug logging.
[ERROR]
[ERROR] For more information about the errors and possible solutions, please read the following articles:
[ERROR] [Help 1] http://cwiki.apache.org/confluence/display/MAVEN/MojoExecutionException

Alguem sabe o que é meu pom.xml segue abaixo

<?xml version="1.0" encoding="UTF-8"?>


4.0.0

<groupId>com.boaglio.casadocodigo</groupId>
<artifactId>springbootproperties</artifactId>
<version>0.0.1-SNAPSHOT</version>
<packaging>jar</packaging>

<name>springbootproperties</name>
<description>lista de propriedades do Spring Boot</description>

<parent>
	<groupId>org.springframework.boot</groupId>
	<artifactId>spring-boot-starter-parent</artifactId>
	<version>1.5.3.RELEASE</version>
	<relativePath /> <!-- lookup parent from repository -->
</parent>

<properties>
	<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
	<project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>
	<java.version>1.8</java.version>
</properties>

<dependencies>
	<dependency>
		<groupId>org.springframework.boot</groupId>
		<artifactId>spring-boot-starter-data-jpa</artifactId>
	</dependency>
	<dependency>
		<groupId>org.springframework.boot</groupId>
		<artifactId>spring-boot-starter-data-rest</artifactId>
	</dependency>
	<dependency>
		<groupId>org.springframework.boot</groupId>
		<artifactId>spring-boot-starter-web</artifactId>
	</dependency>

	<dependency>
		<groupId>org.springframework.boot</groupId>
		<artifactId>spring-boot-starter-tomcat</artifactId>
		<scope>provided</scope>
	</dependency>
	<dependency>
		<groupId>com.h2database</groupId>
		<artifactId>h2</artifactId>
	</dependency>

	<dependency>
		<groupId>org.springframework.boot</groupId>
		<artifactId>spring-boot-starter-test</artifactId>
		<scope>test</scope>
	</dependency>

	<dependency>
		<groupId>org.webjars</groupId>
		<artifactId>bootstrap</artifactId>
		<version>3.3.7-1</version>
	</dependency>
	<dependency>
		<groupId>org.webjars</groupId>
		<artifactId>jquery</artifactId>
		<version>3.1.1</version>
	</dependency>

</dependencies>

<build>
	<plugins>
	
	<plugin>
			<groupId>com.spotify</groupId>
			<artifactId>docker-maven-plugin</artifactId>
			<configuration>
				<imageName>greendogdelivery</imageName>
				<baseImage>frolvlad/alpine-oraclejdk8:slim</baseImage>
				<entryPoint>["java", "-jar",
					"/${project.build.finalName}.jar"]</entryPoint>
				<exposes>8080</exposes>
				<resources>
					<resource>
						<targetPath>/</targetPath>
						<directory>${project.build.directory}</directory>
						<include>${project.build.finalName}.jar</include>
					</resource>
				</resources>
			</configuration>
		</plugin>
	
		<plugin>
			<groupId>org.springframework.boot</groupId>
			<artifactId>spring-boot-maven-plugin</artifactId>
		</plugin>
	</plugins>
</build>

Aparentemente seu pom está ok.
Estava com o mesmo problema. Consegui resolver instalando e subindo o docker.

Tem um tutorial oficial do Spring também: https://spring.io/guides/gs/spring-boot-docker/