deprecated pollster-list

we should only do this via polling.yaml (or pipeline.yaml for
pre-Pike builds)

Change-Id: I6cb28913afc18b2a5d2a0c0612fad399ffa5a3b2

ceilometer/cmd/polling.py

@@ -68,9 +68,11 @@ CLI_OPTS = [
                          'resource polling'),
     MultiChoicesOpt('pollster-list',
                     default=[],
+                    deprecated_for_removal=True,
                     dest='pollster_list',
                     help='List of pollsters (or wildcard templates) to be '
-                         'used while polling'),
+                         'used while polling. This option is deprecated. '
+                         'Configure pollsters via polling.yaml'),
 ]
 
 

releasenotes/notes/deprecate-pollster-list-ccf22b0dea44f043.yaml

@@ -0,0 +1,5 @@
+---
+deprecations:
+  - |
+    Deprecating support for enabling pollsters via command line. Meter and
+    pollster enablement should be configured via polling.yaml file.