Update Dockerfile

Dockerfile

@@ -8,8 +8,6 @@ VOLUME ["/var/log", "/var/spool/postfix"]
 
 RUN useradd postfix --gid 0 --uid 1001
 
-USER postfix
-
 RUN rpm --import /etc/pki/rpm-gpg/RPM-GPG-KEY-CentOS-7 && \
     yum updateinfo -y && \
     yum update -y glibc && \
@@ -18,7 +16,6 @@ RUN rpm --import /etc/pki/rpm-gpg/RPM-GPG-KEY-CentOS-7 && \
     yum install -y python34-devel postfix cyrus-sasl cyrus-sasl-plain mailx && \
     yum clean all
 
-RUN useradd -G cartoons jerry
 
 RUN chmod -Rf g+w /etc/postfix && \
     chmod -Rf g+w /var/log && \
@@ -35,4 +32,5 @@ COPY chaperone.conf /etc/chaperone.d/chaperone.conf
 COPY docker-setup.sh /docker-setup.sh
 RUN chmod +x /docker-setup.sh
 
+
 ENTRYPOINT ["/usr/bin/chaperone"]