Changes

Dockerfile

@@ -27,7 +27,7 @@ RUN apt-get update && \
 #    usermod -aG administrator,sudo ubuntu
 
 # Create the 'admin' and 'ubuntu' users with home directories and passwords, and add them to the 'sudo' group
-RUN useradd -m -s /bin/bash admin && \
+RUN useradd -m admin && \
     echo 'admin:password' | chpasswd && \
     echo 'ubuntu:password' | chpasswd && \
     usermod -aG sudo admin && \