How to create and append a variable in Logstash

Question

I want to be able to do

filter {

   if [type] == "mobile" + x
   {
      ...
   }
}

where x is a string that is a number. This will let mobile1, mobile2, mobile3, etc be filtered in the same way.

Is there any way that is possible?

Answer 1

Yes, you can do with the following config

filter {
    if [type] =~ /mobile.+/
    {
        ......
    }
}

It is a regular expression, when the type has the word mobile, it will go in the if statement.