Scripted fields examples from the article result in a compile error

Elastic Stack Kibana
1

Hi all, I'm trying to use scripted fields and all examples from the article result in a compile error. (Examples are in sub-thread). Is there anything I am missing? Feel free to re-direct me to another channel, if this is the wrong one for this question

for example

  def m = /^.*\.([a-z]+)$/.matcher(doc['host.keyword'].value);
if ( m.matches() ) {
   return m.group(1)
} else {
   return "no match"
}

results in

 "root_cause": [
  {
   "type": "script_exception",
   "reason": "compile error",
   "script_stack": [
    "def m = /^.*\\.([a-z]+)$/.matcher( ...",
    "        ^---- HERE"
   ],
   "script": "def m = /^.*\\.([a-z]+)$/.matcher(doc['host.keyword'].value);\nif ( m.matches() ) {\n   return m.group(1)\n} else {\n   return \"no match\"\n}",
   "lang": "painless"
  },

Any ideas where to dig?

2

Have you turned regex in your elasticsearch.yml file?

script.painless.regex.enabled: true
3

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