Activate dcagent

This commit configures the following:

- Activate the audit using dcagent for subclouds running current N
  software version.
- Configure the log folders and log rotation for dcagent. The logs
  will be available in /var/log/dcagent/dcagent.log.

Test plan:
  - PASS: Build a developer ISO. Deploy a DC system with 2 system
          controllers and 1 subcloud. Verify the audit is performed
          using dcagent for N release subclouds and the old audit
          model for N-1 subclouds.
  - PASS: Manage the subcloud and verify the endpoints are correctly
          being audited.
  - PASS: Verify dcagent is being properly logged to the correct
          folder.

Depends-On: https://review.opendev.org/c/starlingx/config/+/925767
Depends-On: https://review.opendev.org/c/starlingx/stx-puppet/+/925766

Story: 2011106
Task: 50689

Change-Id: I2d7bfb0abbb9c0d95e2be07c52a6b2d2a511ebbd
Signed-off-by: Victor Romano <victor.gluzromano@windriver.com>

distributedcloud/dccommon/utils.py

@@ -400,10 +400,7 @@ def send_subcloud_shutdown_signal(subcloud_name):
 
 
 def subcloud_has_dcagent(software_version: str):
-    # TODO(vgluzrom): remove "False" condition and uncomment code
-    # when dcagent service is enabled by default
-    return False
-    # return software_version >= consts.MIN_VERSION_FOR_DCAGENT
+    return software_version >= consts.MIN_VERSION_FOR_DCAGENT
 
 
 def log_subcloud_msg(

distributedcloud/debian/deb_folder/distributedcloud-dcagent.dirs

@@ -1 +1 @@
-/var/log/dcagent
+var/log/dcagent

distributedcloud/debian/deb_folder/distributedcloud-dccommon.tmpfiles

@@ -1,3 +1,4 @@
+d /var/log/dcagent 0755 root root - -
 d /var/log/dcdbsync 0755 root root - -
 d /var/log/dcmanager 0755 root root - -
 d /var/log/dcorch 0755 root root - -

distributedcloud/files/distcloud-logrotate.conf

@@ -43,6 +43,21 @@
         endscript
 }
 
+/var/log/dcagent/*.log
+{
+        nodateext
+        size 10M
+        start 1
+        rotate 20
+        missingok
+        notifempty
+        compress
+        sharedscripts
+        postrotate
+                 systemctl reload syslog-ng > /dev/null 2>&1 || true
+        endscript
+}
+
 /var/log/dcmanager/ansible/*.log
 {
         nodateext

distributedcloud/files/distcloud-syslog.conf

@@ -7,6 +7,7 @@ destination d_dcmanager_orch { file("/var/log/dcmanager/orchestrator.log" templa
 destination d_dcorch { file("/var/log/dcorch/dcorch.log" template(t_preformatted)); };
 destination d_dcdbsync { file("/var/log/dcdbsync/dcdbsync.log" template(t_preformatted)); };
 destination d_dcdbsync_openstack { file("/var/log/dcdbsync/dcdbsync_openstack.log" template(t_preformatted)); };
+destination d_dcagent { file("/var/log/dcagent/dcagent.log" template(t_preformatted)); };
 
 # Distributed Cloud Log Filters
 filter f_dcmanagermanager    { facility(local4) and program(dcmanager-manager); };
@@ -21,6 +22,8 @@ filter f_dcorchapiproxy    { facility(local4) and program(dcorch-api-proxy); };
 filter f_dcdbsyncapi    { facility(local4) and program(dcdbsync-api); };
 filter f_dcdbsyncopenstackapi    { facility(local4) and program(dcdbsync-api); };
 
+filter f_dcagentapi    { facility(local4) and program(dcagent-api); };
+
 # Distributed Cloud Log Path
 log {source(s_src); filter(f_dcmanagermanager); destination(d_dcmanager); };
 log {source(s_src); filter(f_dcmanageraudit); destination(d_dcmanager_audit); };
@@ -31,4 +34,5 @@ log {source(s_src); filter(f_dcorchengine); destination(d_dcorch); };
 log {source(s_src); filter(f_dcorchapiproxy); destination(d_dcorch); };
 log {source(s_src); filter(f_dcdbsyncapi); destination(d_dcdbsync); };
 log {source(s_src); filter(f_dcdbsyncopenstackapi); destination(d_dcdbsync_openstack); };
+log {source(s_src); filter(f_dcagentapi); destination(d_dcagent); };