Why is logstash crashing?

Question

Nginx

UP 07/01/2020

Hello, help me figure out the error

systemctl restart logstash.service &&  tail -f /var/log/logstash/logstash-plain.log
[2020-07-01T09:02:20,251][INFO ][logstash.runner          ] Logstash shut down.
[2020-07-01T09:02:36,912][INFO ][logstash.runner          ] Starting Logstash {"logstash.version"=>"7.8.0", "jruby.version"=>"jruby 9.2.11.1 (2.5.7) 2020-03-25 b1f55b1a40 OpenJDK 64-Bit Server VM 25.252-b09 on 1.8.0_252-8u252-b09-1~deb9u1-b09 +indy +jit [linux-x86_64]"}
[2020-07-01T09:02:37,832][ERROR][logstash.agent           ] Failed to execute action {:action=>LogStash::PipelineAction::Create/pipeline_id:main, :exception=>"LogStash::ConfigurationError", :message=>"Expected one of [ \\t\\r\\n], \"#\", \"input\", \"filter\", \"output\" at line 1, column 1 (byte 1)", :backtrace=>["/usr/share/logstash/logstash-core/lib/logstash/compiler.rb:58:in `compile_imperative'", "/usr/share/logstash/logstash-core/lib/logstash/compiler.rb:66:in `compile_graph'", "/usr/share/logstash/logstash-core/lib/logstash/compiler.rb:28:in `block in compile_sources'", "org/jruby/RubyArray.java:2577:in `map'", "/usr/share/logstash/logstash-core/lib/logstash/compiler.rb:27:in `compile_sources'", "org/logstash/execution/AbstractPipelineExt.java:181:in `initialize'", "org/logstash/execution/JavaBasePipelineExt.java:67:in `initialize'", "/usr/share/logstash/logstash-core/lib/logstash/java_pipeline.rb:43:in `initialize'", "/usr/share/logstash/logstash-core/lib/logstash/pipeline_action/create.rb:52:in `execute'", "/usr/share/logstash/logstash-core/lib/logstash/agent.rb:342:in `block in converge_state'"]}
[2020-07-01T09:02:38,272][INFO ][logstash.agent           ] Successfully started Logstash API endpoint {:port=>9600}
[2020-07-01T09:02:40,270][WARN ][logstash.runner          ] SIGTERM received. Shutting down.
[2020-07-01T09:02:43,149][INFO ][logstash.runner          ] Logstash shut down.
[2020-07-01T09:02:59,563][INFO ][logstash.runner          ] Starting Logstash {"logstash.version"=>"7.8.0", "jruby.version"=>"jruby 9.2.11.1 (2.5.7) 2020-03-25 b1f55b1a40 OpenJDK 64-Bit Server VM 25.252-b09 on 1.8.0_252-8u252-b09-1~deb9u1-b09 +indy +jit [linux-x86_64]"}
[2020-07-01T09:03:00,510][ERROR][logstash.agent           ] Failed to execute action {:action=>LogStash::PipelineAction::Create/pipeline_id:main, :exception=>"LogStash::ConfigurationError", :message=>"Expected one of [ \\t\\r\\n], \"#\", \"input\", \"filter\", \"output\" at line 1, column 1 (byte 1)", :backtrace=>["/usr/share/logstash/logstash-core/lib/logstash/compiler.rb:58:in `compile_imperative'", "/usr/share/logstash/logstash-core/lib/logstash/compiler.rb:66:in `compile_graph'", "/usr/share/logstash/logstash-core/lib/logstash/compiler.rb:28:in `block in compile_sources'", "org/jruby/RubyArray.java:2577:in `map'", "/usr/share/logstash/logstash-core/lib/logstash/compiler.rb:27:in `compile_sources'", "org/logstash/execution/AbstractPipelineExt.java:181:in `initialize'", "org/logstash/execution/JavaBasePipelineExt.java:67:in `initialize'", "/usr/share/logstash/logstash-core/lib/logstash/java_pipeline.rb:43:in `initialize'", "/usr/share/logstash/logstash-core/lib/logstash/pipeline_action/create.rb:52:in `execute'", "/usr/share/logstash/logstash-core/lib/logstash/agent.rb:342:in `block in converge_state'"]}
[2020-07-01T09:03:00,900][INFO ][logstash.agent           ] Successfully started Logstash API endpoint {:port=>9600}
[2020-07-01T09:03:05,836][INFO ][logstash.runner          ] Logstash shut down.

It costs EKL - it also costs NGINX - on which authorization is configured.

The task is to collect a log from Mikrotik, for this there are three input.conf files

in conf.d

input {
    beats {
  port => 5044
    }
    syslog {
  port => 5045
  type => syslog
    }
}

filter.conf

else if [host] == "10.1.4.19" or [host] == "10.1.5.1" {
        mutate {
            add_tag => [ "mikrotik", "gateway" ]
        }
    }
    else if [host] == "10.1.4.66" or [host] == "10.1.3.110" or [host] == "10.1.3.111" {
        mutate {
            add_tag => [ "mikrotik", "wifi" ]
        }
    }
    else if [host] == "10.1.4.14" or [host] == "10.1.5.33" {
        mutate {
            add_tag => [ "mikrotik", "switch" ]
  }
    }

output.conf

else if "mikrotik" in [tags] {
        elasticsearch {
            hosts     => "localhost:9200"
            index    => "mikrotik-%{+YYYY.MM}"
        }
    }

Elestik - launched

curl -X GET http://localhost:9200
{
  "name" : "log",
  "cluster_name" : "elasticsearch",
  "cluster_uuid" : "kUdSHXQsS3itWMHC8eFMKw",
  "version" : {
    "number" : "7.8.0",
    "build_flavor" : "default",
    "build_type" : "deb",
    "build_hash" : "757314695644ea9a1dc2fecd26d1a43856725e65",
    "build_date" : "2020-06-14T19:35:50.234439Z",
    "build_snapshot" : false,
    "lucene_version" : "8.5.1",
    "minimum_wire_compatibility_version" : "6.8.0",
    "minimum_index_compatibility_version" : "6.0.0-beta1"
  },
  "tagline" : "You Know, for Search"

but at the same time I get an error above

where to dig?

Answer 1

he complains not about configuration files, but about actions that are in * .conf

"Expected one of #, input, filter, output at line 32, column 1 (byte 1105) after "