Fix Issue with SHELL

dockerfiles/devenv.Dockerfile

@@ -8,7 +8,7 @@ ENV ROS_DISTRO "${ROS_DISTRO}"
 
 ARG EXT_SHELL=bash
 ENV EXT_SHELL "${EXT_SHELL}"
-ENV SHELL="/bin/${SHELL}"
+ENV SHELL "/bin/${EXT_SHELL}"
 RUN echo "Building devenv for ROS" $ROS_DISTRO "with shell" $EXT_SHELL
 
 # Avoid warnings by switching to noninteractive
@@ -123,10 +123,6 @@ RUN chmod a+x /ros_entrypoint.sh
 # Set running in docker for zsh powerlevel10k
 ENV RUNNING_IN_DOCKER true
 
-# Set extra environment variables for ROS2
-ENV ROS_LOCALHOST_ONLY=1
-ENV RMW_IMPLEMENTATION=rmw_cyclonedds_cpp
-
 # Define entrypoint and command
 ENTRYPOINT ["/ros_entrypoint.sh"]
 CMD $EXT_SHELL
@@ -142,7 +138,7 @@ ENV DEBIAN_FRONTEND=
 FROM devenv as workspace-extended
 
 # Avoid warnings by switching to noninteractive
-ENV DEBIAN_FRONTEND=noninteractive
+ENV DEBIAN_FRONTEND noninteractive
 
 # Install extra packages ws_dependencies
 ARG PACKAGES=none
@@ -198,3 +194,7 @@ RUN apt-get update \
 
 # Switch back to dialog for any ad-hoc use of apt-get
 ENV DEBIAN_FRONTEND=
+
+# Define entrypoint and command
+ENTRYPOINT ["/ros_entrypoint.sh"]
+CMD $EXT_SHELL

dockerfiles/ros_entrypoint.sh

 #!/usr/bin/env bash
 
-# Check if the shell is Bash or Zsh
-if [ -n "$BASH_VERSION" ]; then
-    # Bash
 source "/opt/ros/$ROS_DISTRO/setup.bash"
-elif [ -n "$ZSH_VERSION" ]; then
-    # Zsh
-    source "/opt/ros/$ROS_DISTRO/setup.zsh"
-else
-    echo "Unknown shell. This script is designed for Bash and Zsh."
-    return 1
-fi
-
 exec "$@"