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Bootstrap HA GlusterFS Cluster in GCE

  • This project bootstraps off-cluster HA GlusterFS Cluster, if you are interested to run HA GlusterFS Cluster in Kubernetes, check out gluster-kubernetes project.

As you know shared file systems are a tricky problem. One solution to that problem is a distributed file system. Something that your apps can read from and write to. When it comes to distributed file systems, GlusterFS is one of the leading products.

With a few simple scripts on your Mac OS X or Linux machine, you can deploy a multi-zone HA GlusterFS cluster to Google Compute Engine (GCE) that provides scalable, persistent shared storage for your GCE or Google Container Engine (GKE) Kubernetes clusters.

By default it is set to three GlusterFS servers, one server per Google Cloud zone in the same chosen region.

Prerequisites

Before continuing, please make sure you have:

Clone this project and set settings:

$ git clone https://github.com/rimusz/glusterfs-gce
$ cd glusterfs-gce/cluster
  • Edit the cluster/settings file and set PROJECT, REGION and ZONES, the rest of settings in this file are probably fine, but can be adjusted if need be.

Bootstrap the cluster

$ ./create_cluster.sh

This command will create three servers.

Each server will have:

  • A static IP
  • The GlusterFS server package installed
  • A Google Cloud persistent disk to be used as a GlusterFS brick, that is: storage space made available to the cluster

Create volumes

A GlusterFS volume is a collection of bricks. A volume can store data across the bricks in three basic ways: distributed, striped, or replicated.

With the script below you will be able to create GFS replicated volumes on all three servers automaticly:

$ cd ..
$ ./create_volume.sh VOLUME_NAME
At this point, your GlusterFS cluster should be fully set up and operational

You can check Kubernetes GlusterFS example how to use GlusterFS with Kubernetes.

Extras

In cluster folder there are two more scripts:

  • upgrade_glusterfs.sh - allows to upgrade GlusterFS server package on all servers
  • upgrade_servers.sh - runs apt-get update && apt-get upgrade on all servers

Delete the cluster

$ ./delete_cluster.sh

This command will delete the whole cluster.

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