lvs+keepalived实现高可用samba集群
来源:互联网 发布:软件需求分析 编辑:程序博客网 时间:2024/06/06 00:12
通常在使用samba时,基于可靠性和性能的要求需要部署成集群,特此记录,整理
环境是ubuntu1604,离线安装,为方便操作,建议配置本地源,配置用户sudo免密码
安装lvs实现具体samba服务器的调度
安装keepalived实现lvs调度的主备容灾
留神
该配置存在如下问题:
1、往samba集群写文件时,所有的流量都经过主调度节点,从samba集群读文件时,流量不经过调度节点
配置apt本地源
先清空/etc/apt/下的sources.list,然后上次iso到服务器,执行如下命令
sudo mount -o loop xxx.iso /media/cdromsudo apt-cdrom -m -d /media/cdrom addsudo apt-get update
配置用户sudo免密码
adduser shenppecho "shenpp ALL = (root) NOPASSWD:ALL" | sudo tee /etc/sudoers.d/shenppchmod 0440 /etc/sudoers.d/shenpp
关闭防火墙
sudo ufw stop;sudo ufw disabled;
时钟同步
选取一台服务器配置为ntpserver,其余服务器向其同步
sudo apt-get install ntp
ntpserver配置文件ntp.conf如下
driftfile /var/lib/ntp/ntp.driftrestrict 127.0.0.1restrict ::1restrict source notrap nomodify noqueryserver 127.127.1.0fudge 127.127.1.0 startum 0
sudo /etc/init.d/ntp start
其余服务器安装ntpdate,然后向ntpserver同步,并且写入crontab
sudo apt-get install ntpdatesudo ntpdate ntpserverIP sudo crontab -e*/1 * * * * ntpdate ntpserverIP >/dev/null 2>&1
时间同步后建议使用如下命令将时间写入硬件
sudo hwclock -w
安装LVS和keepalived
集群共有12台服务器,选取2台(node0,node1)安装keepalived,其余10台(node2-node11)做提供samba服务的realserver
在node0和node1安装ipvsadm和keepalived
sudo apt-get install keepalived ipvsadm #ubuntu1604默认已经安装ipvsadm
安装成功后,修改主机的keepalived.conf如下:
global_defs { notification_email { } smtp_connect_timeout 30 router_id LVS_DEVEL}vrrp_instance VI_1 { state MASTER #备机为BACKUP interface bond0 virtual_router_id 51 priority 100 #备机为90 advert_int 1 authentication { auth_type PASS auth_pass 1111 } virtual_ipaddress { 10.254.245.10 }}virtual_server 10.254.245.10 445 { #DR模式给定浮动IP delay_loop 6 #(每隔6秒查询realserver状态) lb_algo rr #(轮询算法,还可以配置lvs) lb_kind DR #(Direct Route) persistence_timeout 10 #(同一IP的连接10秒内被分配到同一台realserver) protocol TCP real_server 10.254.245.13 445 { weight 1 #(权重) TCP_CHECK { connect_timeout 10 #(10秒无响应超时) nb_get_retry 3 delay_before_retry 3 connect_port 445 } } real_server 10.254.245.14 445 { weight 1 TCP_CHECK { connect_timeout 10 nb_get_retry 3 delay_before_retry 3 connect_port 445 } } real_server 10.254.245.15 445 { weight 1 TCP_CHECK { connect_timeout 10 nb_get_retry 3 delay_before_retry 3 connect_port 445 } } real_server 10.254.245.16 445 { weight 1 TCP_CHECK { connect_timeout 10 nb_get_retry 3 delay_before_retry 3 connect_port 445 } } real_server 10.254.245.17 445 { weight 1 TCP_CHECK { connect_timeout 10 nb_get_retry 3 delay_before_retry 3 connect_port 445 } } real_server 10.254.245.18 445 { weight 1 TCP_CHECK { connect_timeout 10 nb_get_retry 3 delay_before_retry 3 connect_port 445 } } real_server 10.254.245.19 445 { weight 1 TCP_CHECK { connect_timeout 10 nb_get_retry 3 delay_before_retry 3 connect_port 445 } } real_server 10.254.245.20 445 { weight 1 TCP_CHECK { connect_timeout 10 nb_get_retry 3 delay_before_retry 3 connect_port 445 } } real_server 10.254.245.21 445 { weight 1 TCP_CHECK { connect_timeout 10 nb_get_retry 3 delay_before_retry 3 connect_port 445 } } real_server 10.254.245.22 445 { weight 1 TCP_CHECK { connect_timeout 10 nb_get_retry 3 delay_before_retry 3 connect_port 445 } } }virtual_server 10.254.245.10 139 { delay_loop 6 lb_algo rr lb_kind DR persistence_timeout 10 protocol TCP real_server 10.254.245.13 139 { weight 1 TCP_CHECK { connect_timeout 10 nb_get_retry 3 delay_before_retry 3 connect_port 139 } } real_server 10.254.245.14 139 { weight 1 TCP_CHECK { connect_timeout 10 nb_get_retry 3 delay_before_retry 3 connect_port 139 } } real_server 10.254.245.15 139 { weight 1 TCP_CHECK { connect_timeout 10 nb_get_retry 3 delay_before_retry 3 connect_port 139 } } real_server 10.254.245.16 139 { weight 1 TCP_CHECK { connect_timeout 10 nb_get_retry 3 delay_before_retry 3 connect_port 139 } } real_server 10.254.245.17 139 { weight 1 TCP_CHECK { connect_timeout 10 nb_get_retry 3 delay_before_retry 3 connect_port 139 } } real_server 10.254.245.18 139 { weight 1 TCP_CHECK { connect_timeout 10 nb_get_retry 3 delay_before_retry 3 connect_port 139 } } real_server 10.254.245.19 139 { weight 1 TCP_CHECK { connect_timeout 10 nb_get_retry 3 delay_before_retry 3 connect_port 139 } } real_server 10.254.245.20 139 { weight 1 TCP_CHECK { connect_timeout 10 nb_get_retry 3 delay_before_retry 3 connect_port 139 } } real_server 10.254.245.21 139 { weight 1 TCP_CHECK { connect_timeout 10 nb_get_retry 3 delay_before_retry 3 connect_port 139 } } real_server 10.254.245.22 139 { weight 1 TCP_CHECK { connect_timeout 10 nb_get_retry 3 delay_before_retry 3 connect_port 139 } }}
配置路由转发
修改 /etc/sysctl.conf ,设置net.ipv4.ip_forward = 1 ,执行sysctl -p 立即生效
sudo /etc/init.d/keepalived startsudo update-rc.d keepalived defaults #加入开机启动项
安装配置samba服务节点
安装samba服务
sudo apt-get install samba
修改samba配置文件:
[samba]comment = samba directpath = /mnt/testvalid users = testpublic = nowritable = yesprintable = nocreate mask = 0777directory mask = 0777
创建samba用户
sudo useradd test –u 2500 echo –e “testtest\testtest” | smbpasswd –a test–s #创建test用户,密码testtest#该条命令便于在10台机器批量创建
启动samba并且加入开机启动项
sudo /etc/init.d/samba start
配置路由
vim /usr/local/sbin/lvs_dr_rs.sh#!/bin/bashvip=10.254.245.10ifconfig lo:0 $vip broadcast $vip netmask 255.255.255.255 uproute add -host $vip lo:0echo "1" >/proc/sys/net/ipv4/conf/lo/arp_ignoreecho "2" >/proc/sys/net/ipv4/conf/lo/arp_announceecho "1" >/proc/sys/net/ipv4/conf/all/arp_ignoreecho "2" >/proc/sys/net/ipv4/conf/all/arp_announce
sh /usr/local/sbin/lvs_dr_rs.shecho 'sh /usr/local/sbin/lvs_dr_rs.sh' >> /etc/rc.local
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