Make Ansible write its logs into "kolla_logs"

The Ansible logs are currently not collected by Heka.  This can be
done later, with an Ansible-specific decoder for Heka.

Partially implements: blueprint heka
Change-Id: I8d3ba4edb527f61c0a8234024b4be953c6e6c565

ansible/roles/common/tasks/start.yml

@@ -39,4 +39,4 @@
     volumes:
       - "/dev/:/dev/"
       - "/run/:/run/"
-      - "rsyslog_socket:/var/lib/kolla/rsyslog/"
+      - "kolla_logs:/var/log/kolla/"

ansible/roles/common/templates/rsyslog.conf.j2

@@ -7,9 +7,6 @@ $KLogPermitNonKernelFacility on
 $ActionFileDefaultTemplate RSYSLOG_TraditionalFileFormat
 $RepeatedMsgReduction on
 
-$template KollaToolboxFile,"/var/log/kolla_toolbox.log"
-:syslogtag,contains,"toolbox" ?KollaToolboxFile
-
 $template HeatAPIFile,"/var/log/heat/heat-api.log"
 :syslogtag,contains,"heat-api" ?HeatAPIFile
 

docker/kolla-toolbox/ansible.cfg

@@ -1,2 +1,3 @@
 [defaults]
 remote_tmp = /tmp
+log_path = /var/log/kolla/ansible.log