# logstash.conf
#
# Basic logstash config and filters for injesting most logs from Nova,
# Keystone, Glance, Ceilometer, Heat, and Neutron services, as well as
# Apache (Horizon) and syslog.
#
# Author: Kris Lindgren <klindgren@godaddy.com>
#
# Copyright (c) 2014 Go Daddy Operating Company, LLC
#
# Permission is hereby granted, free of charge, to any person obtaining a 
# copy of this software and associated documentation files (the "Software"), 
# to deal in the Software without restriction, including without limitation 
# the rights to use, copy, modify, merge, publish, distribute, sublicense, 
# and/or sell copies of the Software, and to permit persons to whom the 
# Software is furnished to do so, subject to the following conditions:
#
# The above copyright notice and this permission notice shall be included in 
# all copies or substantial portions of the Software.
#
# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 
# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 
# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL 
# THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER 
# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING 
# FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER 
# DEALINGS IN THE SOFTWARE.
#

input {
  file {
    path => ['/var/log/nova/nova-api.log']
    tags => ['nova', 'oslofmt']
    type => "nova"
  }
  file {
    path => ['/var/log/nova/nova-conductor.log']
    tags => ['nova', 'oslofmt']
    type => "nova"
  }
  file {
    path => ['/var/log/nova/nova-manage.log']
    tags => ['nova', 'oslofmt']
    type => "nova"
  }
  file {
    path => ['/var/log/nova/nova-scheduler.log']
    tags => ['nova', 'oslofmt']
    type => "nova"
  }
  file {
    path => ['/var/log/nova/nova-spicehtml5proxy.log']
    tags => ['nova', 'oslofmt']
    type => "nova"
  }
  file {
    path => ['/var/log/keystone/keystone-all.log']
    tags => ['keystone', 'keystonefmt']
    type => "keystone"
  }
  file {
    path => ['/var/log/keystone/keystone-manage.log']
    tags => ['keystone', 'keystonefmt']
    type => "keystone"
  }
  file {
    path => ['/var/log/glance/api.log']
    tags => ['glance', 'oslofmt']
    type => "glance"
  }
  file {
    path => ['/var/log/glance/registry.log']
    tags => ['glance', 'oslofmt']
    type => "glance"
  }
  file {
    path => ['/var/log/glance/scrubber.log']
    tags => ['glance', 'oslofmt']
    type => "glance"
  }
  file {
    path => ['/var/log/ceilometer/ceilometer-agent-central.log']
    tags => ['ceilometer', 'oslofmt']
    type => "ceilometer"
  }
  file {
    path => ['/var/log/ceilometer/ceilometer-alarm-notifier.log']
    tags => ['ceilometer', 'oslofmt']
    type => "ceilometer"
  }
  file {
    path => ['/var/log/ceilometer/ceilometer-api.log']
    tags => ['ceilometer', 'oslofmt']
    type => "ceilometer"
  }
  file {
    path => ['/var/log/ceilometer/ceilometer-alarm-evaluator.log']
    tags => ['ceilometer', 'oslofmt']
    type => "ceilometer"
  }
  file {
    path => ['/var/log/ceilometer/ceilometer-collector.log']
    tags => ['ceilometer', 'oslofmt']
    type => "ceilometer"
  }
  file {
    path => ['/var/log/heat/heat.log']
    tags => ['heat', 'oslofmt']
    type => "heat"
  }
  file {
    path => ['/var/log/neutron/neutron-server.log']
    tags => ['neutron', 'oslofmt']
    type => "neutron"
  }
# Not collecting RabbitMQ logs for the moment
#  file {
#    path => ['/var/log/rabbitmq/rabbit@<%= @hostname %>.log']
#    tags => ['rabbitmq', 'oslofmt']
#    type => "rabbitmq"
#  }
  file {
    path => ['/var/log/httpd/access_log']
    tags => ['horizon']
    type => "horizon"
  }
  file {
    path => ['/var/log/httpd/error_log']
    tags => ['horizon']
    type => "horizon"
  }
  file {
    path => ['/var/log/httpd/horizon_access_log']
    tags => ['horizon']
    type => "horizon"
  }
  file {
    path => ['/var/log/httpd/horizon_error_log']
    tags => ['horizon']
    type => "horizon"
  }
}
filter {
  if "oslofmt" in [tags] {
    multiline {
      negate => true
      pattern => "^%{TIMESTAMP_ISO8601} "
      what => "previous"
    }
    multiline {
      negate => false
      pattern => "^%{TIMESTAMP_ISO8601}%{SPACE}%{NUMBER}?%{SPACE}?TRACE"
      what => "previous"
    }
    grok {
      # Do multiline matching as the above mutliline filter may add newlines
      # to the log messages.
      # TODO move the LOGLEVELs into a proper grok pattern.
      match => { "message" => "(?m)^%{TIMESTAMP_ISO8601:logdate}%{SPACE}%{NUMBER:pid}?%{SPACE}?(?<loglevel>AUDIT|CRITICAL|DEBUG|INFO|TRACE|WARNING|ERROR) \[?\b%{NOTSPACE:module}\b\]?%{SPACE}?%{GREEDYDATA:logmessage}?" }
      add_field => { "received_at" => "%{@timestamp}" }
    }

  } else if "keystonefmt" in [tags] {
    grok {
      # Do multiline matching as the above mutliline filter may add newlines
      # to the log messages.
      # TODO move the LOGLEVELs into a proper grok pattern.
      match => { "message" => "(?m)^%{TIMESTAMP_ISO8601:logdate}%{SPACE}%{NUMBER:pid}?%{SPACE}?(?<loglevel>AUDIT|CRITICAL|DEBUG|INFO|TRACE|WARNING|ERROR) \[?\b%{NOTSPACE:module}\b\]?%{SPACE}?%{GREEDYDATA:logmessage}?" }
      add_field => { "received_at" => "%{@timestamp}" }
    }
    if [module] == "iso8601.iso8601" {
  #log message for each part of the date?  Really?
  drop {}
    }
  } else if "libvirt" in [tags] {
    grok {
       match => { "message" => "(?m)^%{TIMESTAMP_ISO8601:logdate}:%{SPACE}%{NUMBER:code}:?%{SPACE}\[?\b%{NOTSPACE:loglevel}\b\]?%{SPACE}?:?%{SPACE}\[?\b%{NOTSPACE:module}\b\]?%{SPACE}?%{GREEDYDATA:logmessage}?" }
       add_field => { "received_at" => "%{@timestamp}"}
    }
    mutate {
       uppercase => [ "loglevel" ]
    }
  } else if [type] == "syslog" {
     grok {
        match => { "message" => "%{SYSLOGTIMESTAMP:syslog_timestamp} %{SYSLOGHOST:syslog_hostname} %{DATA:syslog_program}(?:\[%{POSINT:syslog_pid}\])?: %{GREEDYDATA:logmessage}" }
        add_field => [ "received_at", "%{@timestamp}" ]
     }
     syslog_pri {
        severity_labels => ["ERROR", "ERROR", "ERROR", "ERROR", "WARNING", "INFO", "INFO", "DEBUG" ]
     }
     date {
        match => [ "syslog_timestamp", "MMM  d HH:mm:ss", "MMM dd HH:mm:ss" ]
     }
     if !("_grokparsefailure" in [tags]) {
        mutate {
           replace => [ "@source_host", "%{syslog_hostname}" ]
        }
     }
     mutate {
        remove_field => [ "syslog_hostname", "syslog_timestamp" ]
        add_field => [ "loglevel", "%{syslog_severity}" ]
        add_field => [ "module", "%{syslog_program}" ]
     }
  }
}