Logstash container is getting stoped automatically - docker

Question

I'm trying to start the docker container. I am using docker-elk.yml file to generate ELK containers.Elasticsearch and Kibana Containers are working fine.But for Logstash,it is starting and going into container bash but after sometimes it stops automatically.
Logs of container:
[2019-04-11T08:48:26,882][INFO ][logstash.runner ] Starting Logstash {"logstash.version"=>"6.6.0"}
[2019-04-11T08:48:33,497][INFO ][logstash.pipeline ] Starting pipeline {:pipeline_id=>"main", "pipeline.workers"=>4, "pipeline.batch.size"=>125, "pipeline.batch.delay"=>50}
[2019-04-11T08:48:34,062][INFO ][logstash.outputs.elasticsearch] Elasticsearch pool URLs updated {:changes=>{:removed=>[], :added=>[http://elasticsearch:9200/]}}
[2019-04-11T08:48:34,310][WARN ][logstash.outputs.elasticsearch] Restored connection to ES instance {:url=>"http://elasticsearch:9200/"}
[2019-04-11T08:48:34,409][INFO ][logstash.outputs.elasticsearch] ES Output version determined {:es_version=>6}
[2019-04-11T08:48:34,415][WARN ][logstash.outputs.elasticsearch] Detected a 6.x and above cluster: the type event field won't be used to determine the document _type {:es_version=>6}
[2019-04-11T08:48:34,469][INFO ][logstash.outputs.elasticsearch]
New Elasticsearch output {:class=>"LogStash::Outputs::ElasticSearch", :hosts=>["//elasticsearch:9200"]}
[2019-04-11T08:48:34,486][INFO ][logstash.outputs.elasticsearch] Using mapping template from {:path=>nil}
[2019-04-11T08:48:34,503][INFO ][logstash.outputs.elasticsearch]
Attempting to install template {:manage_template=>{"template"=>"logstash-", "version"=>60001, "settings"=>{"index.refresh_interval"=>"5s"}, "mappings"=>{"_default_"=>{"dynamic_templates"=>[{"message_field"=>{"path_match"=>"message", "match_mapping_type"=>"string", "mapping"=>{"type"=>"text", "norms"=>false}}}, {"string_fields"=>{"match"=>"", "match_mapping_type"=>"string", "mapping"=>{"type"=>"text", "norms"=>false, "fields"=>{"keyword"=>{"type"=>"keyword", "ignore_above"=>256}}}}}], "properties"=>{"#timestamp"=>{"type"=>"date"}, "#version"=>{"type"=>"keyword"}, "geoip"=>{"dynamic"=>true, "properties"=>{"ip"=>{"type"=>"ip"}, "location"=>{"type"=>"geo_point"}, "latitude"=>{"type"=>"half_float"}, "longitude"=>{"type"=>"half_float"}}}}}}}}
[2019-04-11T08:48:34,960][INFO ][logstash.inputs.beats ] Beats inputs: Starting input listener {:address=>"0.0.0.0:5000"}
[2019-04-11T08:48:34,985][INFO ][logstash.pipeline ] Pipeline started successfully {:pipeline_id=>"main", :thread=>"#"}
[2019-04-11T08:48:35,077][INFO ][logstash.agent ] Pipelines running {:count=>1, :running_pipelines=>[:main], :non_running_pipelines=>[]}
[2019-04-11T08:48:35,144][INFO ][org.logstash.beats.Server] Starting server on port: 5000
[2019-04-11T08:48:35,499][INFO ][logstash.agent ] Successfully started Logstash API endpoint {:port=>9600}
[2019-04-11T08:48:50,591][INFO ][logstash.outputs.file ] Opening file {:path=>"/usr/share/logstash/output.log"}
[2019-04-11T13:16:51,947][WARN ][logstash.runner ] SIGTERM received. Shutting down.
[2019-04-11T13:16:56,498][INFO ][logstash.pipeline ] Pipeline has terminated {:pipeline_id=>"main", :thread=>"#"}
Does it try to require a relative path? That's been removed in Ruby 1.9.
uri:classloader:/META-INF/jruby.home/lib/ruby/stdlib/rubygems/core_ext/kernel_require.rb:59:in `require':
It seems your ruby installation is missing psych (for YAML output).
To eliminate this warning, please install libyaml and reinstall your ruby.
[ERROR] 2019-04-11 14:18:02.058 [main] Logstash - java.lang.IllegalStateException: Logstash stopped processing because of an error:
(GemspecError) There was a LoadError while loading logstash-core.gemspec:
load error: psych -- java.lang.RuntimeException: BUG: we can not copy embedded jar to temp directoryoes it try to require a relative path? That's been removed in Ruby 1.9.
uri:classloader:/META-INF/jruby.home/lib/ruby/stdlib/rubygems/core_ext/kernel_require.rb:59:in `require':
It seems your ruby installation is missing psych (for YAML output).
To eliminate this warning, please install libyaml and reinstall your ruby.
[ERROR] 2019-04-11 13:42:01.450 [main]
Logstash - java.lang.IllegalStateException: Logstash stopped processing because of an error: (GemspecError) There was a LoadError while loading logstash-core.gemspec: load error: psych -- java.lang.RuntimeException: BUG: we can not copy embedded jar to temp directory
I have tried to remove tmp folder in container.But it is not working.