How do you tag by multiple source IPs?

Elastic Stack Logstash
8

Sorry, I should have tested it before asking. But it does look like that's the case. Not sure if that's the new syntax for 7.4, but [host] does work and [source] does not:

{
    "@timestamp" => 2019-10-10T20:50:33.916Z,
       "message" => "Test",
          "host" => "10.190.200.30",
      "@version" => "1",
          "tags" => [
        [0] "Test"
    ]
}

Thank you so much for your help!