diff --git a/Dockerfile b/Dockerfile
index beb7f1d..d43dfd9 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -5,10 +5,16 @@
 ENV JENKINS_HOME /var/jenkins_home
 ENV JENKINS_SLAVE_AGENT_PORT 50000
 
+ARG user=jenkins
+ARG group=jenkins
+ARG uid=1000
+ARG gid=1000
+
 # Jenkins is run with user `jenkins`, uid = 1000
 # If you bind mount a volume from the host or a data container, 
 # ensure you use the same uid
-RUN useradd -d "$JENKINS_HOME" -u 1000 -m -s /bin/bash jenkins
+RUN groupadd -g ${gid} ${group} \
+    && useradd -d "$JENKINS_HOME" -u ${uid} -g ${gid} -m -s /bin/bash ${user}
 
 # Jenkins home directory is a volume, so configuration and build history 
 # can be persisted and survive image upgrades
@@ -37,7 +43,7 @@
   && echo "$JENKINS_SHA /usr/share/jenkins/jenkins.war" | sha1sum -c -
 
 ENV JENKINS_UC https://updates.jenkins-ci.org
-RUN chown -R jenkins "$JENKINS_HOME" /usr/share/jenkins/ref
+RUN chown -R ${user} "$JENKINS_HOME" /usr/share/jenkins/ref
 
 # for main web interface:
 EXPOSE 8080
@@ -47,7 +53,7 @@
 
 ENV COPY_REFERENCE_FILE_LOG $JENKINS_HOME/copy_reference_file.log
 
-USER jenkins
+USER ${user}
 
 COPY jenkins.sh /usr/local/bin/jenkins.sh
 ENTRYPOINT ["/bin/tini", "--", "/usr/local/bin/jenkins.sh"]