Added DISPLAY to env.

Did you know echo cmd was unstable? I didn't.

build_ros/entrypoint.sh

@@ -18,16 +18,19 @@ if [ "0" == "$(cat /home/ros/docker_image_version)" ]; then
     echo "Created workspace"
     su ros -c "cd /home/ros/workspace; colcon build --event-handlers console_cohesion+ --cmake-args -DCMAKE_EXPORT_COMPILE_COMMANDS=ON -G Ninja"
     echo "Built workspace"
-    echo "1" > /home/ros/docker_image_version
+    printf "1" > /home/ros/docker_image_version
 fi
 
+
+
 if [ ! -f /home/ros/.ssh/id_rsa ]; then
     su ros -c "ssh-keygen -N '' -f /home/ros/.ssh/id_rsa"
     echo "Generated SSH Keys."
 fi
 
 echo "ros:ros" | chpasswd
-su ros -c "echo 'source /opt/ros/$ROS_DISTRO/setup.bash\nsource /home/ros/workspace/install/setup.bash' > ~/.rosrc"
+su ros -c "printf 'source /opt/ros/$ROS_DISTRO/setup.bash\nsource /home/ros/workspace/install/setup.bash' > ~/.rosrc"
+printf "DISPLAY=$DISPLAY" > /etc/profile.d/display.sh
 
 echo "Ready to connect."
 

start.sh

@@ -26,7 +26,6 @@ for host in ${hosts[@]}; do
 done
 
 echo "Attaching."
-echo "You are ready for shell access."
 sudo docker-compose up
 
 echo "Removing from xhost:"