Can't write to `/var/maven` it not root user

[zachradtka]

Similar close issues re #86 and #83 .

My docker command is copied directly from the example:

docker run -v ~/.m2:/var/maven/.m2 -it --rm -u $(id -u) -e MAVEN_CONFIG=/var/maven/.m2 maven mvn -e -Duser.home=/var/maven archetype:generate

The output is:

mkdir: cannot create directory ‘/var/maven/.m2/repository’: Permission denied
Can not write to /var/maven/.m2/copy_reference_file.log. Wrong volume permissions? Carrying on ...
[INFO] Error stacktraces are turned on.
[ERROR] Could not create local repository at /var/maven/.m2/repository -> [Help 1]
org.apache.maven.repository.LocalRepositoryNotAccessibleException: Could not create local repository at /var/maven/.m2/repository
    at org.apache.maven.DefaultMaven.validateLocalRepository (DefaultMaven.java:385)
    at org.apache.maven.DefaultMaven.doExecute (DefaultMaven.java:169)
    at org.apache.maven.DefaultMaven.execute (DefaultMaven.java:105)
    at org.apache.maven.cli.MavenCli.execute (MavenCli.java:960)
    at org.apache.maven.cli.MavenCli.doMain (MavenCli.java:293)
    at org.apache.maven.cli.MavenCli.main (MavenCli.java:196)
    at jdk.internal.reflect.NativeMethodAccessorImpl.invoke0 (Native Method)
    at jdk.internal.reflect.NativeMethodAccessorImpl.invoke (NativeMethodAccessorImpl.java:77)
    at jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke (DelegatingMethodAccessorImpl.java:43)
    at java.lang.reflect.Method.invoke (Method.java:568)
    at org.codehaus.plexus.classworlds.launcher.Launcher.launchEnhanced (Launcher.java:282)
    at org.codehaus.plexus.classworlds.launcher.Launcher.launch (Launcher.java:225)
    at org.codehaus.plexus.classworlds.launcher.Launcher.mainWithExitCode (Launcher.java:406)
    at org.codehaus.plexus.classworlds.launcher.Launcher.main (Launcher.java:347)
[ERROR] 
[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/LocalRepositoryNotAccessibleException

My ~/.m2 directory is owned by my user:

ls -alhn ~/.m2
total 8.0K
drwxr-xr-x  2 1000 1000 4.0K Feb 13 16:43 .
drwxr-xr-x 57 1000 1000 4.0K Feb 13 16:42 ..

I am running Ubuntu on WSL2.

Please let me know if there is anymore information that might be helpful.

[carlossg]

Probably some issue with how permissions work on WSL2, I bet if you chmod 777 ~/.m2 before running docker it works

[zachradtka]

Thanks for the prompt reply.

I tried changing permissions and still the same error. Here is my m2 directory with 777.

$ ls -lad ~/.m2
drwxrwxrwx 3 zach zach 4096 Feb 13 17:04 /home/zach/.m2

Here is the same error as before.

$ docker run -v ~/.m2:/var/maven/.m2 -it --rm -u $(id -u) -e MAVEN_CONFIG=/var/maven/.m2 maven mvn -e -Duser.home=/var/maven archetype:generate
mkdir: cannot create directory ‘/var/maven/.m2/repository’: Permission denied
Can not write to /var/maven/.m2/copy_reference_file.log. Wrong volume permissions? Carrying on ...
[INFO] Error stacktraces are turned on.
[ERROR] Could not create local repository at /var/maven/.m2/repository -> [Help 1]
org.apache.maven.repository.LocalRepositoryNotAccessibleException: Could not create local repository at /var/maven/.m2/repository
    at org.apache.maven.DefaultMaven.validateLocalRepository (DefaultMaven.java:385)
    at org.apache.maven.DefaultMaven.doExecute (DefaultMaven.java:169)
    at org.apache.maven.DefaultMaven.execute (DefaultMaven.java:105)
    at org.apache.maven.cli.MavenCli.execute (MavenCli.java:960)
    at org.apache.maven.cli.MavenCli.doMain (MavenCli.java:293)
    at org.apache.maven.cli.MavenCli.main (MavenCli.java:196)
    at jdk.internal.reflect.NativeMethodAccessorImpl.invoke0 (Native Method)
    at jdk.internal.reflect.NativeMethodAccessorImpl.invoke (NativeMethodAccessorImpl.java:77)
    at jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke (DelegatingMethodAccessorImpl.java:43)
    at java.lang.reflect.Method.invoke (Method.java:568)
    at org.codehaus.plexus.classworlds.launcher.Launcher.launchEnhanced (Launcher.java:282)
    at org.codehaus.plexus.classworlds.launcher.Launcher.launch (Launcher.java:225)
    at org.codehaus.plexus.classworlds.launcher.Launcher.mainWithExitCode (Launcher.java:406)
    at org.codehaus.plexus.classworlds.launcher.Launcher.main (Launcher.java:347)
[ERROR] 
[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/LocalRepositoryNotAccessibleException

I am not entirely sure, but I feel like it's a permission problem within the container.