problems running logstash with -f flag in docker - docker

Question

I'm trying to run the logstash container in red hat 7 with the command:
docker run -v /home/logstash/config:/conf -v /home/docker/logs:/logs logstash logstash -f /conf/logstash.conf --verbose
and the response received is:
{:timestamp=>"2016-05-05T10:21:20.765000+0000", :message=>"translation missing: en.logstash.runner.configuration.file-not-found", :level=>:error}
{:timestamp=>"2016-05-05T10:21:20.770000+0000", :message=>"starting agent", :level=>:info}
and the logstash container is not running.
If I execute the folowing command:
docker run -dit -v /home/logstash/config:/conf -v /home/docker/logs:/logs --name=logstash2 logstash logstash -e 'input { stdin { } } output { stdout { } }'
Enter in the container with the command :
docker exec -ti bash
and execute:
logstash -f /conf/logstash.conf
A new logstash proccess is now running in the container and I can manage log files setted up in the config file.
Any idea why am i having this strange behaviour?
Thanks, for all.

Answer 1

Problem solved. It was a directory permissions in the host machine.Thanks for helping #NOTtardy

Answer 2

Try making double quotes around logstash -f /conf/logstash.conf --verbose
Edit: just tried you command myself and it works fine. Could be that your logstash.conf is the reason for the error.
I've used a very simple logstash.conf
input {
udp {
port => 5000
type => syslog
}
}
output {
stdout {
codec => rubydebug
}
}
And got the following output
{:timestamp=>"2016-05-05T18:24:26.294000+0000", :message=>"starting agent", :level=>:info}
{:timestamp=>"2016-05-05T18:24:26.332000+0000", :message=>"starting pipeline", :id=>"main", :level=>:info}
{:timestamp=>"2016-05-05T18:24:26.370000+0000", :message=>"Starting UDP listener", :address=>"0.0.0.0:5000", :level=>:info}
{:timestamp=>"2016-05-05T18:24:26.435000+0000", :message=>"Starting pipeline", :id=>"main", :pipeline_workers=>1, :batch_size=>125, :batch_delay=>5, :max_inflight=>125, :level=>:info}
{:timestamp=>"2016-05-05T18:24:26.441000+0000", :message=>"Pipeline main started"}