L2SS-218 Add some informational output

bootstrap/sbin/rebuild_system_from_scratch.sh

@@ -93,44 +93,61 @@ function start_lofar_images()
 }
 
 
-# Stop all Docker images.
-stop_images
-
 # Clean out the Docker volumes.
+echo "-> Stopping Docker images and cleaning cleaning up their volumes..."
 clean_images
+echo -e "\tDone.\n"
 
 # Move the tango repo dir out of the way.
 echo "-> Moving the tango directory ${HOME_DIR} out of the way..."
 move_tango_dir_out_of_the_way
 echo -e "\tDone.\n"
 
-# Therefore, since the tango/boostrap dir is now gone, pull the repo first
-# and then continue.
+# Now pull the repo.
+echo "-> Cloning tango's master branch to ${HOME_DIR}..."
 pull_tango
+echo -e "\tDone.\n"
 
 # Now clean out the docker images.
+echo "-> Deleting all Docker images from this host..."
 remove_images
+echo -e "\tDone.\n"
 
 # Pull SKA's Docker images.
+echo "-> Installing latest SKA Docker images on this host..."
 pull_images
+echo -e "\tDone.\n"
 
 # Build all of the LOFAR Docker images.
+echo "-> Building LOFAR2.0 Docker images..."
 build_lofar_images
+echo -e "\tDone.\n"
 
 # Now start the basic Tango system, including dsconfig.
+echo "-> Staring up a minimal Tango session..."
 start_minimal_tango
+echo -e "\tDone.\n"
 
 # Load LOFAR's TangoDB.
+echo "-> Configuring the Tango DB for LOFAR2.0..."
 configure_tango_db
+echo -e "\tDone.\n"
 
 # Now configure the ELK container.
+echo "-> Configuring the ELK container for this host..."
 configure_elk
+echo -e "\tDone.\n"
 
 # Here I start ELK & Jupyter.
+echo "-> Start LOFAR2.0 support containers (ELK, Jupyter, etc.)..."
 start_support_images
+echo -e "\tDone.\n"
 
 # And finally start all the LOFAR images.
+echo "-> Start LOFAR2.0 containers..."
 start_lofar_images
+echo -e "\tDone.\n"
 
 # Now the system should be ready to use.
 # For instance the cold start script could now be executed.
+echo -e "-> LOFAR2.0 system rebuild was successful.\n\n"