Add '--quiet' switch

Quiet option turns off all image build logs above CRITICAL level. Handy
for checking build/push queue.

Change-Id: I9d49c9e6851341c084673ef2946acf4490c3ae8b

kolla/common/config.py

@@ -256,7 +256,9 @@ _CLI_OPTS = [
     cfg.StrOpt('openstack-branch', default='master',
                help='Branch for source images'),
     cfg.BoolOpt('docker-healthchecks', default=True,
-                help='Add Kolla docker healthcheck scripts in the image')
+                help='Add Kolla docker healthcheck scripts in the image'),
+    cfg.BoolOpt('quiet', short='q', default=False,
+                help='Do not print image logs')
 ]
 
 _BASE_OPTS = [

kolla/common/utils.py

@@ -32,6 +32,8 @@ def make_a_logger(conf=None, image_name=None):
         log.addHandler(handler)
     if conf is not None and conf.debug:
         log.setLevel(logging.DEBUG)
+    elif conf is not None and conf.quiet and image_name:
+        log.setLevel(logging.CRITICAL)
     else:
         log.setLevel(logging.INFO)
     return log

kolla/image/build.py

@@ -310,8 +310,7 @@ class PushIntoQueueTask(task.Task):
 
     @property
     def name(self):
-        return 'PushIntoQueueTask(%s=>%s)' % (self.push_task.name,
-                                              self.push_queue)
+        return 'PushIntoQueueTask(%s)' % (self.push_task.name)
 
     def run(self):
         self.push_queue.put(self.push_task)

releasenotes/notes/add-quiet-mode-4f386acd4bc043a5.yaml

@@ -0,0 +1,4 @@
+---
+features:
+  - |
+    Adds '--quiet' switch to disable printing of image build log.