[chassis][multiasic] fixed rsyslogd FATAL issue in the database container in multi-asic box (#8390)

Why I did it
Fix for issue #8389

How I did it
The /etc/rsyslog.conf is empty file which cause the FATAL of the process rsyslogd in the global instance database container. The function updateSyslogConf() should only generate the rsyslog.conf for containers in the namespace. it should not do it for the containers in the global instance. Instead, default rsyslog.conf should be used. Especially for database container, updateSyslogConf() is called before the database container is created. The result cause the sonic-cfggen failed to generate the rsyslog.conf.Why I did it
Fix for issue #8389

How I did it
The /etc/rsyslog.conf is empty file which cause the FATAL of the process rsyslogd in the global instance database container. The function updateSyslogConf() should only generate the rsyslog.conf for containers in the namespace. it should not do it for the containers in the global instance. Instead, default rsyslog.conf should be used. Especially for database container, updateSyslogConf() is called before the database container is created. The result cause the sonic-cfggen failed to generate the rsyslog.conf.

Signed-off-by: mlok <[email protected]>

Author: mlok-nokia

files/build_templates/docker_image_ctl.j2

@@ -36,8 +36,11 @@ function updateSyslogConf()
         TARGET_IP=$(docker network inspect bridge --format={{ "'{{(index .IPAM.Config 0).Gateway}}'" }})
         CONTAINER_NAME="$DOCKERNAME"
         TMP_FILE="/tmp/rsyslog.$CONTAINER_NAME.conf"
-
+        {%- if docker_container_name == "database" %} 
+        python -c "import jinja2, os; paths=['/usr/share/sonic/templates']; loader = jinja2.FileSystemLoader(paths); env = jinja2.Environment(loader=loader, trim_blocks=True); template_file='/usr/share/sonic/templates/rsyslog-container.conf.j2'; template = env.get_template(os.path.basename(template_file)); data=template.render({\"target_ip\":\"$TARGET_IP\",\"container_name\":\"$CONTAINER_NAME\"}); print(data)" > $TMP_FILE
+        {%- else %}
         sonic-cfggen -t /usr/share/sonic/templates/rsyslog-container.conf.j2 -a "{\"target_ip\": \"$TARGET_IP\", \"container_name\": \"$CONTAINER_NAME\" }"  > $TMP_FILE
+        {%- endif %}
         docker cp $TMP_FILE ${DOCKERNAME}:/etc/rsyslog.conf
         rm -rf $TMP_FILE
     fi