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Step 2. Configuring the Gluster server

On the created VMVMs, we install the Gluster server program and configure a Gluster filesystem. For your convenience, you can find a shell script that should be executed by root account on the master node. See https://github.com/astromsshin/cloud_ex and the script https://github.com/astromsshin/cloud_ex/blob/main/tool_setup_glusterfs_single_server.sh which is presented below:

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The created network filesystem can be mounted on client VMs by using mount command with required options. A simple script is available as https://github.com/astromsshin/cloud_ex/blob/main/tool_setup_glusterfs_client_all_nodes-single_server.sh  in the github repository https://github.com/astromsshin/cloud_ex. The script, which needs to be executed on the client cluster master node, is given below:

#!/bin/bash

# Name of the cluster which defines the clients' names
CLUSTERNAME="ml-image"
# Last integer index of the minions in the cluster
MINIONLASTIND="8"
# IP of the Gluster server
GLUSTERSERVERIP="10.0.100.150"
# Name of the Gluster server
GLUSTERSERVERNAME="test-gl-vm"
# Directory name which is a mount point on clients
TARGETDIR="/mnt/gluster"


RUNCMD="apt -y install glusterfs-client; echo ${GLUSTERSERVERIP} ${GLUSTERSERVERNAME} >> /etc/hosts;mkdir ${TARGETDIR}; mount -t glusterfs ${GLUSTERSERVERNAME}:/gvol ${TARGETDIR}; chmod -R 777 ${TARGETDIR}"

echo "... setuping on ${CLUSTERNAME}-master"
echo $RUNCMD | bash

for ind in $(seq 0 ${MINIONLASTIND})
do
echo "... setuping on ${CLUSTERNAME}-minion-${ind}"
ssh ${CLUSTERNAME}-minion-${ind} "${RUNCMD}"
done

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Step 1. Creating a basic cluster of VMs

This step is the same as the step 1 of the Case A as explained above.

Step 2. Configuring the Gluster server with multiple bricks on the cluster VMs

The configuration of the Gluster VMs can be done with the provided script https://github.com/astromsshin/cloud_ex/blob/main/tool_setup_glusterfs_multiple_servers.sh on the github repository https://github.com/astromsshin/cloud_ex. The script is given below:

Step 3. Mounting the created Gluster

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filesystem on client VMs

The configuration of the Gluster firesystem affects how the client VMs mount and access the Gluster filesystem. The following script, which is available on the github repository  https://github.com/astromsshin/cloud_ex as https://raw.githubusercontent.com/astromsshin/cloud_ex/main/tool_setup_glusterfs_client_all_nodes-multiple_servers.sh.