Mariadb Galera Cluster 羣集 安裝部署

#Mariadb Galera Cluster 羣集 安裝部署

openstack pike 部署  目錄彙總 http://www.cnblogs.com/elvi/p/7613861.html

#Mariadb Galera Cluster羣集

# ###########################
# ##基本設置

# #配置hosts
# echo '#Ha
# 192.168.58.21   controller1
# 192.168.58.22   controller2
# 192.168.58.23   controller3
# '>>/etc/hosts

# #免密驗

# #controller1 ssh免密驗證
# ssh-keygen -t rsa -P '' -f ~/.ssh/id_dsa
# ssh-copy-id -i ~/.ssh/id_dsa.pub root@controller2
# ssh-copy-id -i ~/.ssh/id_dsa.pub root@controller2
# #其它節點同樣
# #shell批量配置http://www.cnblogs.com/elvi/p/7681779.html

# ###########################

# #每一個節點執行

# #配置內核
# echo '
# * soft nofile 65536  
# * hard nofile 65536 
# '>>/etc/security/limits.conf
# #
# echo '
# fs.file-max=655350  
# net.ipv4.ip_local_port_range = 1025 65000  
# net.ipv4.tcp_tw_recycle = 1 
# '>>/etc/sysctl.conf
# sysctl -p
# ###########################

#MariaDB Galera 安裝
yum install mariadb mariadb-server mariadb-galera-server -y
yum install expect -y

#SQL root密碼
DBPass=open2017

#配置數據庫
echo "#
[mysqld]
bind-address = 0.0.0.0
default-storage-engine = innodb
innodb_file_per_table
max_connections = 4096
collation-server = utf8_general_ci
character-set-server = utf8
#">/etc/my.cnf.d/openstack.cnf

#啓動數據庫服務
#systemctl enable mariadb.service
systemctl start mariadb.service

#mysql_secure_installation #初始化設置密碼,自動交互
/usr/bin/expect << EOF
set timeout 30
spawn mysql_secure_installation
expect {
    "enter for none" { send "\r"; exp_continue}
    "Y/n" { send "Y\r" ; exp_continue}
    "password:" { send "$DBPass\r"; exp_continue}
    "new password:" { send "$DBPass\r"; exp_continue}
    "Y/n" { send "Y\r" ; exp_continue}
    eof { exit }
}
EOF

#測試
mysql -u root -p$DBPass -e "show databases;"
[ $? = 0 ] || { echo "mariadb初始化失敗";exit; }
#############

#galera配置
/usr/bin/cp /etc/my.cnf.d/galera.cnf{,.bak}
egrep -v "#|^$" /etc/my.cnf.d/galera.cnf.bak >/etc/my.cnf.d/galera.cnf
sed -i 's/wsrep_on=1/wsrep_on=ON/' /etc/my.cnf.d/galera.cnf
sed -i 's/wsrep_sst_auth=root:/wsrep_sst_auth=root:'$DBPass'/' /etc/my.cnf.d/galera.cnf

###########
#controller1節點
sed -i 's/bind-address = 0.0.0.0/bind-address = controller1/' /etc/my.cnf.d/openstack.cnf
echo '
wsrep_cluster_address="gcomm://controller1,controller2,controller3"
wsrep_node_name=controller1
wsrep_node_address=controller1
'>>/etc/my.cnf.d/galera.cnf
cat /etc/my.cnf.d/galera.cnf

systemctl daemon-reload
systemctl stop mariadb.service
galera_new_cluster #啓動第一個節點

#############
#controller2節點
sed -i 's/bind-address = 0.0.0.0/bind-address = controller2/' /etc/my.cnf.d/openstack.cnf
echo '
wsrep_cluster_address="gcomm://controller1,controller2,controller3"
wsrep_node_name=controller2
wsrep_node_address=controller2
'>>/etc/my.cnf.d/galera.cnf
systemctl restart mariadb.service

#controller3節點
sed -i 's/bind-address = 0.0.0.0/bind-address = controller3/' /etc/my.cnf.d/openstack.cnf
echo '
wsrep_cluster_address="gcomm://controller1,controller2,controller3"
wsrep_node_name=controller3
wsrep_node_address=controller3
'>>/etc/my.cnf.d/galera.cnf
systemctl restart mariadb.service

#其它節點啓動後，重啓第一個節點 controller1
systemctl restart mariadb.service

#檢測
netstat -antp|grep mysqld
mysql -u root -p$DBPass -e "show status like 'wsrep_cluster_size';"
mysql -u root -p$DBPass -e "show status like 'wsrep_incoming_addresses';"

#建立用於監控的mariadb 用戶haproxy (haproxy代理，監控使用)
mysql -u root -p$DBPass -e "create user 'haproxy'@'%';flush privileges;"

#root遠程訪問設置
mysql -u root -p$DBPass -e "
grant all privileges on *.* to 'root'@'%' identified by '$DBPass' with grant option; 
flush privileges;
select user,host,password from mysql.user;"

##########################################

##部署成功，檢測結果以下      
# [root@controller1 ~]# mysql -u root -p$DBPass -e "show status like 'wsrep_cluster_size';"
# +--------------------+-------+
# | Variable_name      | Value |
# +--------------------+-------+
# | wsrep_cluster_size | 3     |
# +--------------------+-------+
# [root@controller1 ~]# mysql -u root -p$DBPass -e "show status like 'wsrep_incoming_addresses';"
# +--------------------------+----------------------------------------------------+
# | Variable_name            | Value                                              |
# +--------------------------+----------------------------------------------------+
# | wsrep_incoming_addresses | controller1:3306,controller2:3306,controller3:3306 |
# +--------------------------+----------------------------------------------------+

# #排錯
# #關閉selinux、防火牆
# tail /var/log/mariadb/mariadb.log
# rm -f /var/lib/mysql//galera.cache
# #關閉羣集後，重啓
# #在其中一臺
# sed -i 's#seqno: -1#seqno: 1#' /var/lib/mysql/grastate.dat
# galera_new_cluster #啓動第一個節點
# #其它節點
# systemctl start mariadb

#test
#/usr/libexec/mysqld --wsrep-new-cluster --user=root &
#systemctl start mariadb.service
#設置開機啓動，設置爲第一個節點
# systemctl disable mariadb.service
# echo '#做爲第一個節點啓動SQL
# /usr/bin/galera_new_cluster
# sleep 5
# ssh controller2 "systemctl start mariadb.service"
# ssh controller3 "systemctl start mariadb.service"
# sleep 3
# systemctl restart mariadb.service
# '>>/etc/rc.local

##########################################
#如下爲openstack相關的配置

#每一個節點都設置
# haproxy高可用代理mariadb
echo '#mariadb_cluster
listen mariadb_cluster
  mode tcp     
  bind controller:3306     
  balance leastconn     
  option mysql-check user haproxy     
  server controller1 controller1:3306 weight 1 check inter 2000 rise 2 fall 5     
  server controller2 controller2:3306 weight 1 check inter 2000 rise 2 fall 5
  server controller3 controller3:3306 weight 1 check inter 2000 rise 2 fall 5
'>>/etc/haproxy/haproxy.cfg
systemctl restart haproxy.service
#測試
DBPass=open2017
mysql -h controller -u root -p$DBPass -e "show status like 'wsrep_cluster_size';"

#############
#如下在controller其中一節點執行便可
#建立openstack相關數據庫、用戶受權
#mysql -u root -p 
mysql -u root -p$DBPass -e "
create database keystone;
grant all privileges on keystone.* to 'keystone'@'localhost' identified by 'keystone';
grant all privileges on keystone.* to 'keystone'@'%' identified by 'keystone';
create database glance;
grant all privileges on glance.* to 'glance'@'localhost' identified by 'glance';
grant all privileges on glance.* to 'glance'@'%' identified by 'glance';

create database nova;
grant all privileges on nova.* to 'nova'@'localhost' identified by 'nova';
grant all privileges on nova.* to 'nova'@'%' identified by 'nova';
create database nova_api;
grant all privileges on nova_api.* to 'nova'@'localhost' identified by 'nova';
grant all privileges on nova_api.* to 'nova'@'%' identified by 'nova';
create database nova_cell0;
grant all privileges on nova_cell0.* to 'nova'@'localhost' identified by 'nova';
grant all privileges on nova_cell0.* to 'nova'@'%' identified by 'nova';

create database neutron;
grant all privileges on neutron.* to 'neutron'@'localhost' identified by 'neutron';
grant all privileges on neutron.* to 'neutron'@'%' identified by 'neutron';

flush privileges;
select user,host from mysql.user;
show databases;
"

mysql -u root -p$DBPass -e "
show databases;
"