logstash.conf

 input {
     stdin {
         type => "stdin-type"
     }
 
     file {
         type => "apache"
         path => ["/var/log/apache2/access.log", "/var/log/apache2/  error.log"]
     }
 
     file {
         type => "mysql"
         path => ["/var/log/mysql.log", "/var/log/mysql.err"]
     }
 
     file {
         type => "mail"
         path => ["/var/log/mail.log", "/var/log/mail.err"]
     }
 }
 
 
 output {
     elasticsearch {
         host => localhost
     }
 }