Looks like the python scripts dont like this, so we use the shell....

ghost-openstack/scripts/ghost/ghost.py

@@ -39,7 +39,7 @@ def configure(subject=None):
     _run('sudo curl -L https://ghost.org/zip/ghost-latest.zip -o /opt/ghost.zip',error_message='Failed downloading ghost')
     _run('sudo unzip -uo /opt/ghost.zip -d /opt/ghost',error_message='Failed unzipping ghost')  
     
-    
+    writeConfig(subject)
 
 def writeConfig(subject=None):
     
@@ -66,17 +66,6 @@ def writeConfig(subject=None):
 
     _run('sudo mv {0} {1}'.format(temp_config.name, CONFIG_PATH),
          error_message='Failed to write to {0}.'.format(CONFIG_PATH))
-    
-
-def start(subject=None):
-    
-    writeConfig(subject)
-    
-    pwd = os.getcwd()
-    os.chdir('/opt/ghost')
-    _run('sudo /usr/bin/npm install',error_message='Failed running npm install')
-    _run('sudo nohup /usr/bin/npm start > /dev/null 2>&1 &',error_message='Failed running npm start')
-    os.chdir(pwd)
 
 def stop():
     _run('sudo killall node',error_message='Failed killing nodejs')

ghost-openstack/scripts/ghost/start-ubuntu.sh

+#!/bin/bash -e
+
+ctx logger info "Starting ghost"
+ctx logger debug "${COMMAND}"
+
+cwd=$(pwd)
+cd /opt/ghost
+sudo /usr/bin/npm install
+sudo nohup /usr/bin/npm start > /dev/null 2>&1 &
+cd $cwd
+
+ctx logger info "Started ghost"
\ No newline at end of file

ghost-openstack/types/ghost.yaml

@@ -52,12 +52,7 @@ node_types:
               invocation:
                 default:
                   function: configure
-          start:
-            implementation: scripts/ghost/ghost.py
-            inputs:
-              invocation:
-                default:
-                  function: start
+          start: scripts/ghost/start-ubuntu.sh
           stop:
             implementation: scripts/ghost/ghost.py
             inputs: