Official Dockerfile uses apt-get commands

Question

I want to use Elasticsearch and Kibana in my project.For ease of deployment I would like to use docker containers.From reading some blogs I found that it is recommended to use 2 containers one for elasticsearch and another one for Kibana.

Is this the right approach?

I downloaded the official elasticsearch Dockerfile from elsticsearch repository

However the Dockerfile uses apt-get commands which work only on Ubuntu/Debian

Do they have different official Docker files for differnt distributions?

Answer 1

You don't need separate Dockerfiles for separate distributions. The ElasticSearch image is built on top of the official Debian image, and so when you build it from the Dockerfile, apt-get will be run inside a Debian instance, regardless of what the rest of your computer is using.

Answer 2

There are two questions from you.

I found that it is recommended to use 2 containers one for elasticsearch and another one for Kibana. Is this the right approach?

Yes, keep the container as simple as you can. Treat a container as a process. But I recommend not to build and base on more than 3 related images.

However the Dockerfile uses apt-get commands which work only on Ubuntu/Debian. Do they have different official Docker files for differnt distributions?

The open source community likes to distribute the image in Ubuntu, but from company level, may prefer RHEL/CentOS or other distributions. So you are fine to write your own Dockerfile easily, because the elsticsearch repository's Dockerfile is plain text to you for reference.