No targets were specified for this build.

I am trying to run Maven in Docker.

So I pulled the image out of it https://hub.docker.com/_/maven/ .

docker pull maven

      

        
        
        
      

    

However, when I run it:

docker run maven

      

        
        
        
      

    

I get:

[ERROR] No goals have been specified for this build. You must specify a valid lifecycle phase or a goal in the format <plugin-prefix>:<goal> or <plugin-group-id>:<plugin-artifact-id>[:<plugin-version>]:<goal>. Available lifecycle phases are: validate, initialize, generate-sources, process-sources, generate-resources, process-resources, compile, process-classes, generate-test-sources, process-test-sources, generate-test-resources, process-test-resources, test-compile, process-test-classes, test, prepare-package, package, pre-integration-test, integration-test, post-integration-test, verify, install, deploy, pre-clean, clean, post-clean, pre-site, site, post-site, site-deploy. -> [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]

      

        
        
        
      

    

I have no experience with Maven, so I don't understand what is causing this problem.

The Docker container has Maven installed, but it won't start, so I don't understand how Maven can fail.