Filebeat hangs on starting - ubuntu:trusty

[myles-mcdonnell]

I am building a docker image to run filebeat which will via a shared volume harvest all the log files output from the other services running in containers on the host. However, it appears to hang on startup. Relevant file content below. I have confirmed that the path to the log file is available as is ELS on port 9200.

DOCKERFILE:

FROM ubuntu:trusty
RUN mkdir /filebeat
WORKDIR /filebeat
RUN apt-get update
RUN apt-get install -y wget
RUN wget https://download.elastic.co/beats/filebeat/filebeat_1.3.0_amd64.deb
RUN dpkg -i filebeat_1.3.0_amd64.deb
COPY ./filebeat.yml /filebeat/filebeat.yml
COPY ./start_filebeat.sh /filebeat/start_filebeat.sh
RUN chmod +x /filebeat/start_filebeat.sh
CMD /filebeat/start_filebeat.sh

START_FILEBEAT.SH

#!/usr/bin/env bash

echo "Waiting 10s to allow deployer to interrupt"
sleep 10
if [ -f /mnt/mesos/sandbox/filebeat.yml ]; then
  echo "Copying config files from mesos sandbox..."
  rm -rf ./filebeat.yml
  ln -s /mnt/mesos/sandbox /filebeat
fi
echo "Using config ..."
cat /filebeat/filebeat.yml
echo "Starting ..."
filebeat -e -c /filebeat/filebeat.yml

FILEBEAT.YML

filebeat:
  prospectors:
    -
      paths:
        - /mnt/logshr/*.log
      input_type: log
  registry_file: /var/lib/filebeat/registry
output:
  elasticsearch:
    hosts: ["192.168.99.100:9200"]
shipper:
logging:
  to_syslog: false
  to_files: false

[magnusbaeck (Magnus Bäck)]

What's in the Docker container's log? What if you increase the log level by starting Filebeat with -d "*"?

[myles-mcdonnell]

..it's working fine. I had incorrectly assumed that no message after 'starting...' meant it had hanged. Thanks.