Only support tomcat？I used undertow

this my pom.xml

   <dependencies>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-web</artifactId>
            <exclusions>
                <exclusion>
                    <groupId>org.springframework.boot</groupId>
                    <artifactId>spring-boot-starter-tomcat</artifactId>
                </exclusion>
                <exclusion>
                    <groupId>org.springframework.boot</groupId>
                    <artifactId>spring-boot-starter-logging</artifactId>
                </exclusion>
            </exclusions>
        </dependency>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-undertow</artifactId>
        </dependency>
    </dependencies>

docker run

 root@nasoft-virtual-machine:/usr/local/tools# docker logs -f 5a42c2075b9a
Exception in thread "main" java.lang.NoClassDefFoundError: org/apache/commons/logging/LogFactory
	at org.springframework.boot.SpringApplication.<clinit>(SpringApplication.java:179)
	at org.orh.Application.main(Application.java:13)
Caused by: java.lang.ClassNotFoundException: org.apache.commons.logging.LogFactory
	at java.net.URLClassLoader.findClass(URLClassLoader.java:381)
	at java.lang.ClassLoader.loadClass(ClassLoader.java:424)
	at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:349)
	at java.lang.ClassLoader.loadClass(ClassLoader.java:357)
	... 2 more

If it is tomcat, no problem.

[d5nguyenvan]

Hi @qq12157138, The reason is in your class the docker-maven-plugin depend on the spring-boot-maven-plugin and there are some differences in the dependencies processing between spring-boot-maven-plugin with jib-maven-plugin. I tested on spring-boot-maven-plugin by marking provided to java-servlet-api, however, when I run spring-boot:repackage the java-servlet-api still include in the final jar file, that is why the docker-maven-plugin run successfully.

[chanseokoh]

@d5nguyenvan @qq12157138 you can run Jib twice to tag your image with different names: #654. Jib is optimized and will skip building images in this case.

@coollog looks like the “provided” dependency issue is not uncommon with Spring Boot-based WAR applications, e.g. #640. That makes sense, as a normal WAR expects that the Servlet APIs and a Servlet engine are provided and not part of the WAR.