comments about the branch of cs_comments_service.

playbooks/roles/forum/defaults/main.yml

@@ -49,6 +49,14 @@ forum_environment:
 forum_user: "forum"
 forum_ruby_version: "1.9.3-p448"
 forum_source_repo: "https://github.com/edx/cs_comments_service.git"
+# Currently we are installing a branch of the comments service
+# that configures unicorn to listen on a unix socket and get the
+# worker count configuration from the environment.  We are not
+# merging to master of the comments service yet as this will have
+# some incompatibilities with our Heroku deployments.
+#
+# https://github.com/edx/cs_comments_service/pull/83
+#
 forum_version: "e0d/unicorn-config"
 forum_unicorn_port: "4567"