Elastic Docker!

The other day I was at a workshop pre-event for .Net Fringe on using elasticsearch. The presenters handed out preloaded USB sticks with the things needed for the workshop. As I obtained one of these and pulled it to my machine I dug through the files. We were instructed to unzip a folder and run a .bat file to get elastic search up and running. Easy enough, right? I cracked the zip and did as instructed but and an error occurred. The instructor told me that they had never seen that error before, and directed me to an msi. I thought for a moment…and was hesitant…as I keep a relatively clean machine. From there I jumped out to hub.docker.com and found the elasticsearch image but don’t use that one… The first word in the description, if you read it, is Deprecated. In the first part of it you will also find a link to the elastic.co docker repository where you can get the url to pull the new official elasticsearch docker image.

docker pull docker.elastic.co/elasticsearch/elasticsearch:5.4.1

This was great! Getting elasticsearch up and running without actually installing anything on my machine. I literally downloaded a container with elasticsearch in it, configured by people that know it better than I do, and turned it on…

docker run -p 9200:9200 -e "http.host=0.0.0.0" -e "transport.host=127.0.0.1" docker.elastic.co/elasticsearch/elasticsearch:5.4.1

However, after reading a bit more, I found that X-Pack security was installed in the image. This was going to take more configuration to change passwords or turn off the security portion. Since I was just looking to participate in the workshop, I asked one of the presenters and he mentioned that X-Pack can be removed relatively easily. So looking into it a bit on the elasticsearch/plugins I found that in the plugin directory if you run remove x-pack it should be removed.

RUN /usr/share/elasticsearch/bin/elasticsearch-plugin remove x-pack

From this a dockerfile was created.

FROM docker.elastic.co/elasticsearch/elasticsearch:5.4.1

USER root

#Remove X-Pack
RUN /usr/share/elasticsearch/bin/elasticsearch-plugin remove x-pack

#Other stuff I didn't want to type repeatedly while in dev.
ENV http.host 0.0.0.0
ENV transport.host 127.0.0.1

USER elasticsearch

That being said, if you build that with

docker build -t carbar/elasticsearch:1.0.0 .

Then run it with

docker run -p 9200:9200 carbar/elasticsearch

Badaboom - you now have a localhost:9200 url for pushing data to.