Logstash filtering for Apache

apache.filter

input {
  redis {
    host => '127.0.0.1'
    port => '6379'
    data_type => 'list'
    key => 'logstash'
  }
}

filter {
  grok {
    type => "apache-access"
    pattern => "%{COMBINEDAPACHELOG}"
  }
  kv {
    field_split => "&?"
  }
  date {
    locale => 'en'
    match => [ "timestamp", "dd/MMM/yyyy:HH:mm:ss Z" ]
  }
}

output {
  elasticsearch { 
    host => localhost
    protocol => http 
  }
}