Add configuration for RSyslog

This patch ensures we get a dedicated file for podman logs, allowing to
get nice way to debug containers.

Change-Id: I60ab7d613c120c4989d5cc548c2d4ec054ee8e80

tripleo_ansible/roles/tripleo-podman/tasks/main.yml

@@ -41,6 +41,9 @@
 - name: Podman install
   import_tasks: tripleo_podman_install.yml
 
+- name: Rsyslog configuration
+  import_tasks: tripleo_podman_rsyslog.yml
+
 - name: Podman purge
   import_tasks: tripleo_podman_purge.yml
 

tripleo_ansible/roles/tripleo-podman/tasks/tripleo_podman_rsyslog.yml

@@ -0,0 +1,44 @@
+---
+# Copyright 2019 Red Hat, Inc.
+# All Rights Reserved.
+#
+# Licensed under the Apache License, Version 2.0 (the "License"); you may
+# not use this file except in compliance with the License. You may obtain
+# a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+# License for the specific language governing permissions and limitations
+# under the License.
+
+
+- name: Check rsyslog service state
+  systemd:
+    name: rsyslog
+  become: true
+  failed_when: false
+  register: rsyslog_service_state
+
+- name: Configure rsyslog if present
+  become: true
+  when:
+    - (rsyslog_service_state is success) and
+      ((rsyslog_service_state.status['SubState'] | lower) == 'running')
+  block:
+    - name: Forward logging to podman.log file
+      blockinfile:
+        block: |-
+          if $programname == 'podman' then -/var/log/podman.log
+          & stop
+        create: true
+        path: /etc/rsyslog.d/podman.conf
+      register: logconfig
+
+    - name: Restart rsyslog service after logging conf change
+      service:
+        name: rsyslog
+        state: restarted
+      when: logconfig is changed