renamved launch/ -> launchers/; removed static avahi services; simpli…

…fied /environment.sh;

.dockerignore

@@ -6,7 +6,7 @@
 !packages
 !dependencies-apt.txt
 !dependencies-py3.txt
-!launch
+!launchers
 
 # YOUR FILES LISTED BELOW THIS LINE (IMPORTANT: PREPEND !)
 # ----------------------------------------------------------------------------

Dockerfile

@@ -40,12 +40,9 @@ RUN pip3 install -r ${REPO_PATH}/dependencies-py3.txt
 # copy the source code
 COPY ./packages/. "${REPO_PATH}/"
 
-# copy avahi services
-COPY ./assets/avahi-services/. /avahi-services/
-
 # install launcher scripts
-COPY ./launch/* "${LAUNCH_PATH}/"
-COPY ./launch/default.sh "${LAUNCH_PATH}/"
+COPY ./launchers/* "${LAUNCH_PATH}/"
+COPY ./launchers/default.sh "${LAUNCH_PATH}/"
 RUN /utils/install_launchers "${LAUNCH_PATH}"
 
 # store module name

README.md

@@ -32,11 +32,21 @@ List the dependencies in the files `dependencies-apt.txt` and
 Place your code in the directory `/code` of
 your new repository.
 
-**NOTE:** Do not use absolute paths in your code, the code you place under `/code` will be copied to a different location later.
+**NOTE:** Do not use absolute paths in your code, the code you place 
+under `/code` will be copied to a different location later. Use the
+variable `CODE_DIR` instead.
 
 
-### 5. Setup the launchfile
 
-Change the file `launch.sh` in your repository to
-launch your code. Use the provided variable `CODE_DIR`
-to identify the place where your code will be placed.
+### 5. Setup launchers
+
+The directory `/launchers` can contain as many launchers (launching scripts)
+as you want. A default launcher called `default.sh` must always be present.
+
+If you create an executable script (i.e., a file with a valid shebang statement)
+a launcher will be created for it. For example, the script file 
+`/launchers/my-launcher.sh` will be available inside the Docker image as the binary
+`dt-launcher-my-launcher`.
+
+When launching a new container, you can simply provide `dt-launcher-my-launcher` as
+command.

assets/STORE_MODULE_ASSETS_HERE

@@ -0,0 +1 @@
+INTENTIONALLY LEFT BLANK

launch/default.sh → launchers/default.sh

@@ -3,7 +3,7 @@
 source /environment.sh
 
 # initialize launch file
-dt_launchfile_init
+dt-launchfile-init
 
 # YOUR CODE BELOW THIS LINE
 # ----------------------------------------------------------------------------
@@ -13,11 +13,11 @@ dt_launchfile_init
 # NOTE: Use `dt_exec COMMAND` to run the main process (blocking process)
 
 # launching app
-dt_exec echo "This is an empty launch script. Update it to launch your application."
+dt-exec echo "This is an empty launch script. Update it to launch your application."
 
 
 # ----------------------------------------------------------------------------
 # YOUR CODE ABOVE THIS LINE
 
-# terminate launch file
-dt_launchfile_terminate
+# wait for app to end
+dt-launchfile-join