Cannot load translate dictionary via docker volume

[orweinberger]

I'm running Logstash 2.4 with the v3.0.0 of the logstash-filter-translate. I have the following configuration:

filter {
  translate {
    dictionary_path => "/config/ip_to_plugin.yml"
    field => "host"
    destination => "plugin"
  }
}

In my docker run command, I map the volume /my-config-dir:/config which has the ip_to_plugin.yml file and it is fully accessible to the logstash process.

However, when I try and launch logstash with the above config I get this error:

{:timestamp=>"2016-09-14T10:33:21.593000+0000", :message=>"Pipeline aborted due to error", :exception=>"RuntimeError", :backtrace=>["/opt/logstash/vendor/bundle/jruby/1.9/gems/logstash-filter-translate-3.0.0/lib/logstash/filters/translate.rb:273:in `loading_exception'", "/opt/logstash/vendor/bundle/jruby/1.9/gems/logstash-filter-translate-3.0.0/lib/logstash/filters/translate.rb:235:in `load_dictionary'", "/opt/logstash/vendor/bundle/jruby/1.9/gems/logstash-filter-translate-3.0.0/lib/logstash/filters/translate.rb:143:in `register'", "/opt/logstash/vendor/bundle/jruby/1.9/gems/logstash-filter-translate-3.0.0/lib/logstash/filters/translate.rb:166:in `lock_for_write'", "/opt/logstash/vendor/bundle/jruby/1.9/gems/logstash-filter-translate-3.0.0/lib/logstash/filters/translate.rb:143:in `register'", "/opt/logstash/vendor/bundle/jruby/1.9/gems/logstash-core-2.4.0-java/lib/logstash/pipeline.rb:182:in `start_workers'", "org/jruby/RubyArray.java:1613:in `each'", "/opt/logstash/vendor/bundle/jruby/1.9/gems/logstash-core-2.4.0-java/lib/logstash/pipeline.rb:182:in `start_workers'", "/opt/logstash/vendor/bundle/jruby/1.9/gems/logstash-core-2.4.0-java/lib/logstash/pipeline.rb:136:in `run'", "/opt/logstash/vendor/bundle/jruby/1.9/gems/logstash-core-2.4.0-java/lib/logstash/agent.rb:491:in `start_pipeline'"], :level=>:error}

I guess that the translate plugin tries to 'lock' the file somehow? I'm not sure how to resolve this.

Also referenced here: logstash-plugins/logstash-filter-translate#36

[tianon]

This image is officially deprecated in favor of upstream's images (see https://www.elastic.co/guide/en/logstash/current/docker.html).

For more information, please see docker-library/elasticsearch#160, docker-library/docs#842, and docker-library/docs#945.

This image has been deprecated in favor of the official logstash image provided and maintained by elastic.co. The upstream images are available to pull via docker.elastic.co/logstash/logstash:[version] like 5.4.2. The images found here will receive no further updates once the 5.6.0 release is available upstream. Please adjust your usage accordingly.

Elastic provides open-source support for Logstash via the elastic/logstash GitHub repository and the Docker image via the elastic/logstash-docker GitHub repository, as well as community support via its forums.

Thanks!