Provide a Dockerfile / Create Docker image on DockerHub

[frittentheke]

Thanks you tremendously for taking the effort to write this exporter! It really helps a lot to maintain a healthy logging infrastructure.

When using the exporter with Filebeat running containerized (i.e.inside Kubernetes) one would like to simply place your beat-exporter next to it as a sidecar. Is there any chance you would add a Dockerfile and potentially also use that to place an "official" Docker image on the Docker Hub?

[shivas]

Sure will do @frittentheke

[shivas]

@frittentheke images posted, you can find link in readme.md