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Create Dockerfiles for spawning containers that can act as GlusterFS nodes and GlusterFS clients
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README.md

Gluster-in-Docker

Goal

Create Dockerfiles for spawning containers that can act as GlusterFS nodes and GlusterFS clients

Usecase

Can be used for quickly creating a PoC setup for deploying / showcasing GlusterFS and its features

Description

This project provides Dockerfile(s) for creating containers that can act as GlusterFS

nodes (aka server node) and GlusterFS client (aka client node). This can help in quickly

setting up server and client containers, using the server containers to create/configure

GlusterFS cluster and using the client container to showcase GlusterFS client

operations. Depending on which Dockerfile you use, the relevant (server or client) RPM

GlusterFS packages are pre-installed in the container, ready to go!

Pre-Requisites

  1. An OS that can act as docker host

This was tested on Fedora 21 VM

  1. Install docker-io RPM package on the host

docker-io package provides the docker utility thats used in the Steps section below

Google for & install the appropriate package if you are using other OS

  1. NOTE: Physical machine or a VM, either can be used as a docker host

Steps

The steps below needs to be done on the docker host (See Pre-Requisites)

(Prefix 'sudo' to the docker specific steps below, if running as non-root)

  1. git clone https://github.com/dpkshetty/Gluster-in-Docker

Clones this project that has the server and client Dockerfiles.

  1. cd Gluster-in-Docker

  2. docker build -t glusterfs-docker .

Builds the server image

  1. docker build -t glusterfs-client -f ./Dockerfile.client .

Builds the client image

  1. docker run -d --privileged=true glusterfs-docker

This creates a container that can act as a GlusterFS server node.

Run this cmd as many times, as many server node(s) you need, thus creating as many containers (1 for each server node)

  1. docker run -d --privileged=true glusterfs-client

This creates a container that can act as a GlusterFS client node.

Typically 1 container is enuf for PoC/demo purposes, but you can create more than one container if need be

  1. docker inspect -f "{{ .NetworkSettings.IPAddress }}" <container ID>

Use docker ps command to get the ID of the containers you spawned.

Then use that ID in the cmd above to get the container's IP address

  1. You can then ssh into the container(s) using that IP address

login: root

password: password

  1. Now you are ready to go!

9.1) Go ahead and start using the server containers as GlusterFS nodes (peer probe and so on..), create a cluster, create/delete GlusterFS volume etc

9.2) Once you create a GlusterFS cluster and GlusterFS volume(s) inside it, you can then use the client container(s) to mount/access GlusterFS volume(s)

Credits

This project was forked from the original project which aimed at installing GlusterFS in

a container using GlusterFS source. In this project, it was modified to work with

pre-installed RPM packages.

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