Gluster Config

install.sh

#!/bin/bash

# Debug stuff
set -o errexit;
set -o pipefall;
set -o nounset;
set -o xtrace;

# Add repo, package and service
sudo add-apt-repository ppa:gluster/glusterfs-4.1
sudo apt install glusterfs-server
sudo systemctl enable --now glusterd

# Create share point
mkdir -p /gfs/.brick

# Figure out if I'm the master 
jq -c '.nodes[]' nodes.json | while read i; do
  COMPAREHOSTNAME=echo $i | jq -r '.hostname'
  if [ $HOSTNAME -eq $COMPAREHOSTNAME ]; then
    MASTER=echo $i | jq -r '.master'
  fi
done

# Do master-only setup
if [ $MASTER = true ]; then
  declare MNTLIST=""
  jq -c '.nodes[]' nodes.json | while read i; do
    COMPAREHOSTNAME=echo $i | jq -r '.hostname'
    NODEIP=$(echo $i | jq -r '.ip')
    # Probe other nodes
    if [ $HOSTNAME -ne $COMPAREHOSTNAME ]; then
      sudo gluster peer probe $NODEIP
    fi
    MNTLIST="$MNTLIST $NODEIP:/gfs/.brick"
  done 
  
  # Apply volume on all nodes
  sudo gluster volume create data replica 4 transport tcp $MNTLIST
  
  # Start the volume
  sudo gluster volume start data
fi

nodes.json

{ "nodes":
  [
    {
      "hostname": "gluster-1",
      "ip": "",
      "master": true
    },
    {
      "hostname": "gluster-2",
      "ip": "",
      "master": false
    },
    {
      "hostname": "gluster-3",
      "ip": "",
      "master": false
    }
  ]
}

refs.txt

https://mattcurfman.com/index.php/2019/03/25/k38s-on-a-4-node-up-board-cluster/
https://www.digitalocean.com/community/tutorials/how-to-create-a-redundant-storage-pool-using-glusterfs-on-ubuntu-servers

Mount local copy at startup
https://angristan.xyz/how-to-mount-local-glusterfs-volume-boot-fstab-systemd-fix/