From 938b0598e5307c76cdcc33d00824eb1234ad280e Mon Sep 17 00:00:00 2001
From: Arif Ali <mail@arif-ali.co.uk>
Date: Sun, 9 Nov 2014 01:20:19 +0000
Subject: [PATCH] Add mariadb-ha script

Signed-off-by: Arif Ali <mail@arif-ali.co.uk>
---
 scripts/ha_configs/mariadb-ha-setup.sh | 58 ++++++++++++++++++++++++++
 1 file changed, 58 insertions(+)
 create mode 100644 scripts/ha_configs/mariadb-ha-setup.sh

diff --git a/scripts/ha_configs/mariadb-ha-setup.sh b/scripts/ha_configs/mariadb-ha-setup.sh
new file mode 100644
index 0000000..e988dc2
--- /dev/null
+++ b/scripts/ha_configs/mariadb-ha-setup.sh
@@ -0,0 +1,58 @@
+#!/bin/bash
+
+# Tested and confirmed on CentOS 7 x86_64
+
+MYSQL_PWD="password"
+
+systemctl start mariadb
+systemctl enable mariadb
+
+mysqladmin password "${MYSQL_PWD}"
+mysqladmin -h $HOSTNAME password "${MYSQL_PWD}"
+
+crudini --set /etc/my.cnf.d/galera.cnf mysqld wsrep_sst_auth root:password
+
+mysql --password="${MYSQL_PWD}" -e "SET wsrep_on=OFF; GRANT ALL ON *.* TO wsrep_sst@'%' IDENTIFIED BY 'wspass'";
+mysql --password="${MYSQL_PWD}" -e "SET wsrep_on=OFF; DELETE FROM mysql.user WHERE user='';"
+
+crudini --set /etc/my.cnf.d/galera.cnf mysqld query_cache_size 0
+crudini --set /etc/my.cnf.d/galera.cnf mysqld binlog_format ROW
+crudini --set /etc/my.cnf.d/galera.cnf mysqld default_storage_engine innodb
+crudini --set /etc/my.cnf.d/galera.cnf mysqld innodb_autoinc_lock_mode 2
+crudini --set /etc/my.cnf.d/galera.cnf mysqld innodb_doublewrite 1
+
+crudini --set /etc/my.cnf.d/galera.cnf mysqld wsrep_provider /usr/lib64/galera/libgalera_smm.so
+
+if [ $HOSTNAME = "stack01" ] then
+  # stack01
+  crudini --set /etc/my.cnf.d/galera.cnf mysqld wsrep_cluster_address gcomm://
+elif [ $HOSTNAME = "stack02" ] then
+  # stack02
+  # TODO: check once stack01 is finished
+  crudini --set /etc/my.cnf.d/galera.cnf mysqld wsrep_cluster_address gcomm://10.0.0.1,10.0.0.3
+elif [ $HOSTNAME = "stack03" ] then
+  # stack03
+  # TODO: check once stack01 is finished
+  crudini --set /etc/my.cnf.d/galera.cnf mysqld wsrep_cluster_address gcomm://10.0.0.1,10.0.0.2
+fi
+
+# Set the firewall
+# mysql
+firewall-cmd --permanent --add-service=mysql --zone=public
+# galera
+firewall-cmd --permanent --add-port=4567/tcp --zone=public
+# galera rsync
+firewall-cmd --permanent --add-port=4444/tcp --zone=public
+# restart the firewall
+firewall-cmd --reload
+
+systemctl restart mariadb
+
+if [ $HOSTNAME = "stack01" ] then
+  # stack01
+  # TODO: need to make sure that at least one of stack01 and stack02 are finished
+  crudini --set /etc/my.cnf.d/galera.cnf mysqld wsrep_cluster_address gcomm://10.0.0.2,10.0.0.3
+  systemctl restart mariadb
+fi
+
+