[fix] Use proper env variable for container uuid

This patch fixes the daemon code to include the container uuid in the
environment of the command, while changing that environment variable to
use a better suited name.

bin/app

@@ -108,7 +108,7 @@ class DownstreamApplication(object):
         self.progress.start()
 
         # retrieve our container uuid
-        self.container_uuid = os.environ.get('container')
+        self.container_uuid = os.environ.get('ARGO_CONTAINER_UUID')
         if self.container_uuid is None:
             logger.error("missing container uuid")
             exit(1)

nrm/containers.py

@@ -49,11 +49,11 @@ class ContainerManager(object):
                            "/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin")
         environ['AC_APP_NAME'] = manifest.name
         environ['AC_METADATA_URL'] = "localhost"
-        environ['container'] = 'argo'
         logger.info("run: environ: %r", environ)
 
         # create container
         container_name = request['uuid']
+        environ['ARGO_CONTAINER_UUID'] = container_name
         logger.info("creating container %s", container_name)
         self.nodeos.create(container_name, allocation)
         logger.info("created container %s", container_name)