Python version check, docker-compose with nodeodm instance

docker-compose.nodeodm.yml

@@ -0,0 +1,12 @@
+# Chaining this file to the main docker-compose file adds
+# a default processing node instance. This is best for users
+# who are just getting started with WebODM.
+
+services:
+  webapp:
+    entrypoint: /bin/bash -c "chmod +x /webodm/*.sh && /webodm/wait-for-it.sh db:5432 -- /webodm/start.sh --create-default-pnode"
+  node-odm-1:
+    image: pierotofy/nodeodm
+    container_name: node-odm-1
+    ports:
+      - "3000"

docker-compose.yml

@@ -1,3 +1,5 @@
+# This configuration does not include a processing node
+# Which makes for faster setup times
 version: '2'
 services:
   db:

start.sh

@@ -1,4 +1,25 @@
 #!/bin/bash
+
+echo -e "\e[92m"      
+echo " _       __     __    ____  ____  __  ___"
+echo "| |     / /__  / /_  / __ \/ __ \/  |/  /"
+echo "| | /| / / _ \/ __ \/ / / / / / / /|_/ / "
+echo "| |/ |/ /  __/ /_/ / /_/ / /_/ / /  / /  "
+echo "|__/|__/\___/_.___/\____/_____/_/  /_/   "
+echo                          
+echo -e "\e[39m"
+
+python -c "import sys;ret = 1 if sys.version_info <= (3, 0) else 0;print('Checking python version... ' + ('3.x, good!' if ret == 0 else '2.x'));sys.exit(ret);"
+if [ $? -eq 1 ]; then
+    echo 
+    echo "===================="
+    echo "You're almost there!"
+    echo "===================="
+    echo -e "\e[33mYour system is currently using Python 2.x. You need to install or configure your system to use Python 3.x. Check out http://docs.python-guide.org/en/latest/dev/virtualenvs/ for information on how to setup Python 3.x alongside your Python 2.x install.\e[39m"
+    echo
+    exit
+fi
+
 echo Building asssets...
 webpack
 
@@ -6,4 +27,8 @@ echo Running migrations
 python manage.py makemigrations
 python manage.py migrate
 
+if [ $1 = "--create-default-pnode" ]; then
+   echo "from nodeodm.models import ProcessingNode; ProcessingNode.objects.update_or_create(hostname='node-odm-1', defaults={'hostname': 'node-odm-1', 'port': 3000})" | python manage.py shell
+fi
+
 python manage.py runserver 0.0.0.0:8000