sonic-buildimage/files/image_config/rsyslog/rsyslog.conf.j2

###############################################################################
# Managed by Ansible
# file: ansible/roles/acs/templates/rsyslog.conf.j2
###############################################################################
#
#  /etc/rsyslog.conf    Configuration file for rsyslog.
#
#                       For more information see
#                       /usr/share/doc/rsyslog-doc/html/rsyslog_conf.html


#################
#### MODULES ####
#################

$ModLoad imuxsock # provides support for local system logging
$ModLoad imklog   # provides kernel logging support
#$ModLoad immark  # provides --MARK-- message capability

# provides UDP syslog reception
$ModLoad imudp
$UDPServerAddress {{udp_server_ip}}  #bind to localhost before udp server run
$UDPServerRun 514

# provides TCP syslog reception
#$ModLoad imtcp
#$InputTCPServerRun 514


###########################
#### GLOBAL DIRECTIVES ####
###########################
#
# Use traditional timestamp format.
# To enable high precision timestamps, comment out the following line.
#
#$ActionFileDefaultTemplate RSYSLOG_TraditionalFileFormat

# Define a custom template
$template SONiCFileFormat,"%timegenerated%.%timegenerated:::date-subseconds% %HOSTNAME% %syslogseverity-text:::uppercase% %syslogtag%%msg:::sp-if-no-1st-sp%%msg:::drop-last-lf%\n"
$ActionFileDefaultTemplate SONiCFileFormat

#
# Set the default permissions for all log files.
#
$FileOwner root
$FileGroup adm
$FileCreateMode 0640
$DirCreateMode 0755
$Umask 0022

#
# Where to place spool and state files
#
$WorkDirectory /var/spool/rsyslog

#
# Include all config files in /etc/rsyslog.d/
#
$IncludeConfig /etc/rsyslog.d/*.conf

#
# Suppress duplicate messages and report "message repeated n times"
#
$RepeatedMsgReduction on

###############
#### RULES ####
###############

#
# Remote syslog logging
#

# The omfwd plug-in provides the core functionality of traditional message forwarding via UDP and plain TCP.
# It is a built-in module that does not need to be loaded.

{% if SYSLOG_SERVER is defined %}
{% for server, data in SYSLOG_SERVER.items() %}
{% set params_list = [] %}
{% if 'source' in data %}
{% set dummy = params_list.append('address=' + '"' + data.source|string + '"') %}
{% endif %}
{% if 'port' in data %}
{% set dummy = params_list.append('port=' + '"' + data.port|string + '"') %}
{% endif %}
{% if 'vrf' in data and data['vrf'] != "default" %}
{% set dummy = params_list.append('device=' + '"' + data.vrf|string + '"') %}
{% endif %}
{% if params_list %}
*.* action(type="omfwd" target="{{ server }}" protocol="udp" {{ params_list|join(' ') }} template="SONiCFileFormat")
{% else %}
*.* action(type="omfwd" target="{{ server }}" protocol="udp" template="SONiCFileFormat")
{% endif %}
{% endfor %}
{% endif %}