MariaDB Galera Cluster w/ CentOS7

provision.sh

#!/usr/bin/env sh

set -x
set -e

SERVICE_OPTION=${1:-""}

cat << EOF | sudo tee /etc/yum.repos.d/MariaDB.repo
[mariadb]
name = MariaDB
baseurl = http://yum.mariadb.org/10.0/centos7-amd64
gpgkey=https://yum.mariadb.org/RPM-GPG-KEY-MariaDB
gpgcheck=1
EOF

yum clean all
yum -y install MariaDB-Galera-server MariaDB-client galera

firewall-cmd --permanent --add-port=3306/tcp
firewall-cmd --permanent --add-port=4444/tcp
firewall-cmd --permanent --add-port=4567/tcp
firewall-cmd --permanent --add-port=4568/tcp
firewall-cmd --reload

cat << EOF | sudo tee /etc/my.cnf.d/server.cnf > /dev/null
[mariadb]
wsrep_provider='/usr/lib64/galera/libgalera_smm.so'
wsrep_cluster_address=gcomm://192.168.33.11,192.168.33.12,192.168.33.13
wsrep_node_address=$(ip -f inet -o addr show | grep 192.168.33. | cut -d "/" -f 1 | awk '{print $NF}')
binlog_format=ROW
default_storage_engine=InnoDB
innodb_autoinc_lock_mode=2
innodb_doublewrite=1
wsrep_on=ON

log-error = error.log
EOF

service mysql start ${SERVICE_OPTION}

Vagrantfile

# -*- mode: ruby -*-
# vi: set ft=ruby :

Vagrant.configure(2) do |config|

  config.vm.define :node1, primary: true do |node1|
    node1.vm.box = "centos7"
    node1.vm.box_url = "https://github.com/holms/vagrant-centos7-box/releases/download/7.1.1503.001/CentOS-7.1.1503-x86_64-netboot.box"
    node1.vm.network "private_network", ip: "192.168.33.11"
    node1.vm.provider "virtualbox" do |vb|
      vb.cpus = "2"
      vb.memory = "1024"
    end
    node1.vm.provision :shell do |shell|
      shell.path = "provision.sh"
      shell.args = ["--wsrep-new-cluster"]
    end
  end
  config.vm.define :node2 do |node2|
    node2.vm.box = "centos7"
    node2.vm.box_url = "https://github.com/holms/vagrant-centos7-box/releases/download/7.1.1503.001/CentOS-7.1.1503-x86_64-netboot.box"
    node2.vm.network "private_network", ip: "192.168.33.12"
    node2.vm.provider "virtualbox" do |vb|
      vb.cpus = "2"
      vb.memory = "1024"
    end
    node2.vm.provision :shell do |shell|
      shell.path = "provision.sh"
      shell.args = []
    end
  end
  config.vm.define :node3 do |node3|
    node3.vm.box = "centos7"
    node3.vm.box_url = "https://github.com/holms/vagrant-centos7-box/releases/download/7.1.1503.001/CentOS-7.1.1503-x86_64-netboot.box"
    node3.vm.network "private_network", ip: "192.168.33.13"
    node3.vm.provider "virtualbox" do |vb|
      vb.cpus = "2"
      vb.memory = "1024"
    end
    node3.vm.provision :shell do |shell|
      shell.path = "provision.sh"
      shell.args = []
    end
  end
end