Dockerfile

FROM ubuntu:12.04
MAINTAINER Andrew Hromis "[email protected]"

RUN apt-get update -q
RUN DEBIAN_FRONTEND=noninteractive apt-get install -qy build-essential curl git
RUN curl -s https://go.googlecode.com/files/go1.2.src.tar.gz | tar -v -C /usr/local -xz
RUN cd /usr/local/go/src && ./make.bash --no-clean 2>&1
ENV PATH /usr/local/go/bin:$PATH

RUN git clone git://github.com/elasticsearch/logstash-forwarder.git /opt/logstash-forwarder
RUN cd /opt/logstash-forwarder && go build

RUN mkdir /opt/ssl
RUN mkdir /containers
ADD logstash-forwarder.crt /opt/ssl/logstash-forwarder.crt
ADD logstash-forwarder.json /etc/logstash-forwarder.json

CMD ["/opt/logstash-forwarder/logstash-forwarder","-config","/etc/logstash-forwarder.json"]

logstash-forwarder.json

{
  "network": {
    "servers": [ "host.somewhere.com:5555" ],

    "ssl ca": "/opt/ssl/logstash-forwarder.crt",
    "timeout": 15
  },

  "files": [
    {
      "paths": [ "/containers/*/data/app/log/logstash*.log" ],
      "fields": { "type": "rails", "tags": "meaningful-tag" }
    }
  ]
}