Fixes and refinements to the dockerfile build system.

workers/dockerfilebuild.py

@@ -45,7 +45,7 @@ def babysit_builder(request):
   repository_build = model.get_repository_build(request['build_id'])
 
   # check if there is already a DO node for this build job, if so clean it up
-  old_id = repository_build.digitalocean_build_node_id
+  old_id = repository_build.build_node_id
   if old_id
     old_droplet = digitalocean.Droplet(old_id)
     old_droplet.destroy()
@@ -60,7 +60,7 @@ def babysit_builder(request):
                                  size_id=66,  # 512MB,
                                  backup_active=False)
   droplet.create(ssh_key_ids=[app.config['DO_SSH_KEY_ID']])
-  repository_build.digitalocean_build_node_id = droplet.id  
+  repository_build.build_node_id = droplet.id  
   repository_build.phase = 'starting'
   repository_build.save()
 
@@ -115,6 +115,8 @@ def babysit_builder(request):
 
   # wait for the job to be complete
   status_url = start_build.headers['Location']
+  repository_build.status_url = status_url
+  repository_build.save()
 
   logger.debug('Waiting for job to be complete')
   status = get_status(status_url)
@@ -128,12 +130,15 @@ def babysit_builder(request):
     repository_build.phase = 'error'
   else:
     repository_build.phase = 'completed'
-  repository_build.save()
 
   # clean up the DO node
   logger.debug('Cleaning up DO node.')
   droplet.destroy()
 
+  repository_build.status_url = None
+  repository_build.build_node_id = None;
+  repository_build.save()
+
   return True