I've been trying to figure this for a while now and don't seem to understand what's wrong nor why. 

We're trying to build a java project in a Docker container using `withMaven` and a configuration saved in `Manage Jenkins -> Managed Files -> Maven settings.xml`. This configuration has been working fine for months but yesterday it just stopped. Our builds are depending on artifacts which are deployed to a local repository and therefore all of our builds are now failing. 

I've tried logging into the docker container while it's running and checking `~/.m2/settings.xml` but the file is not there. Not sure why it's not being copied, but it's not a permission issue as far as I can tell. 

Our pipeline is quite trivial:

pipeline {
    agent {
        docker {
            image 'opensuse-custom-image-with-jdk-and-maven:latest'
        }
    }
    options {
        timeout(time: 2, unit: 'HOURS')
        disableConcurrentBuilds()
        skipDefaultCheckout()
    }
    stages {
        stage('Building...')
        {
            steps {
                withMaven(maven: 'maven-3.3.9', mavenSettingsConfig: 'redacted')
                { 
                    sh "mvn -U clean install -Dmaven.test.failure.ignore=true"
                }
            }
        }
    }
}