$ docker login -u jenkins-nexus -p ******** https://docker.openmodelica.org WARNING! Using --password via the CLI is insecure. Use --password-stdin. WARNING! Your password will be stored unencrypted in /var/lib/jenkins2/ws/LINUX_BUILDS_tmp/d4e41e8f-c7b4-471e-becf-a6d922c55346/config.json. Configure a credential helper to remove this warning. See https://docs.docker.com/engine/reference/commandline/login/#credential-stores Login Succeeded