Ensure persistence for containerized rsyslog state

State files to be persisted under /var/lib/rsyslog.container to not
conflict with the rsyslog running at the host. Those may be position
files for file input tracking, journal position file, and buffers
for Elasticsearch output buffering, if needed.

Change-Id: I8c33e1c58c5e13ec1aea5d66fa437c1e8b21f8d5
Signed-off-by: Bogdan Dobrelya <bdobreli@redhat.com>

deployment/logging/rsyslog-container-puppet.yaml

@@ -212,6 +212,7 @@ outputs:
                   - /var/lib/config-data/puppet-generated/rsyslog/:/var/lib/kolla/config_files/src:ro
                   - /var/log/containers:/var/log/containers:ro
                   - /var/log/containers/rsyslog:/var/log/rsyslog:rw,z
+                  - /var/lib/rsyslog.container:/var/lib/rsyslog:rw,z
             environment:
               - KOLLA_CONFIG_STRATEGY=COPY_ALWAYS
       host_prep_tasks:
@@ -220,10 +221,16 @@ outputs:
             path: /var/log/containers/rsyslog
             state: directory
             setype: svirt_sandbox_file_t
+        - name: create persistent state directory for rsyslog
+          file:
+            path: /var/lib/rsyslog.container
+            state: directory
+            setype: svirt_sandbox_file_t
         - name: rsyslog logs readme
           copy:
             dest: /var/log/rsyslog/readme.txt
             content: |
               Log files from rsyslog containers can be found under
-              /var/log/containers/rsyslog.
+              /var/log/containers/rsyslog. And its state is stored
+              under /var/lib/rsyslog.container.
           ignore_errors: true