keepalived01-安装keepalived

https://www.keepalived.org
https://github.com/acassen/keepalived

1、安装keepalived（yum）

keepalived主网站不提供任何Linux发行版的软件包，它只提供源代码和代码库。
大多数Linux发行版都提供keepalived包作为主线包，包维护人员在维护和报告有关它的问题方面做得很好。

1.1、部署环境

软件版本
- keepalived：
系统环境
- 10.1.1.11：CentOSLinuxrelease7.7.1908(Core)
- 10.1.1.12：CentOSLinuxrelease7.7.1908(Core)

1.2、安装前的准备

1、时间同步

#安装ntpdate
yum install ntpdate -y
#同步时间
ntpdate ntp1.aliyun.com

2、关闭防火墙

#查看防护墙状态
systemctl status firewalld.service
#关闭防火墙
systemctl stop firewalld.service
systemctl disable firewalld.service

3、禁用selinux

#查看selinux的状态
getenforce
#临时有效
setenforce 0
#永久有效。改系统文件/etc/sysconfig/selinux，然后重启机器
sed -i 's/SELINUX=enforcing/SELINUX=disabled/g' /etc/selinux/config

4、开启网路接口的多播功能

1 2	`#开启用于集群服务的网络接口的多播功能(MULTICAST状态)` `ip link` `set` `multicast on dev ens33`

1.3、安装keepalived

1、安装keepalived

CentoS 6.4版本之后，keepalived服务由base仓库提供。

1	`yum install keepalived`

2、查看keepalived服务的主要文件

]# rpm -ql keepalived 
/etc/keepalived/keepalived.conf               //主配置文件
/etc/sysconfig/keepalived                     //Unit File的环境文件
/usr/lib/systemd/system/keepalived.service    //Unit File
/usr/sbin/keepalived                          //主程序文件
......

3、修改unit文件

默认会自动生成unit文件
- 需要修改自动生成的unit文件，否则不能使用systemctl stop keepalived.service命令停止服务

]# vim /usr/lib/systemd/system/keepalived.service
[Unit]
Description=LVS and VRRP High Availability Monitor
After=network-online.target syslog.target
Wants=network-online.target
  
[Service]
Type=forking
EnvironmentFile=-/etc/sysconfig/keepalived
ExecStart=/usr/sbin/keepalived $KEEPALIVED_OPTIONS
Restart=on-failure
RestartSec=5
LimitNOFILE=65536
  
[Install]
WantedBy=multi-user.target

重读系统服务配置，使其生效

1	`]# systemctl daemon-reload`

4、keepalived配置文件

修改配置文件/etc/keepalived/keepalived.conf
- 这里仅仅实现了vip飘逸（通过启停keepalived）

主备模型之主节点(10.1.1.11)

]# vim /etc/keepalived/keepalived.conf
global_defs {
    notification_email {
        root@localhost
    }
    notification_email_from keepalived@hengha11
    smtp_server 127.0.0.1
    smtp_connect_timeout 30
  
    router_id hengha11
    vrrp_mcast_group4 224.1.1.1
}
  
vrrp_instance VR_1 {
    state MASTER
    priority 100
    interface ens33
    virtual_router_id 101
    advert_int 1
    authentication {
        auth_type PASS
        auth_pass hh101
    }
    virtual_ipaddress {
        10.1.1.99/24 dev ens33 label ens33:1
    }
}

主备模型之备节点(10.1.1.12)

]# vim /etc/keepalived/keepalived.conf
global_defs {
    notification_email {
        root@localhost
    }
    notification_email_from keepalived@hengha11
    smtp_server 127.0.0.1
    smtp_connect_timeout 30
 
    router_id hengha12    #!
    vrrp_mcast_group4 224.1.1.1
}
 
vrrp_instance VR_1 {
    state BACKUP          #!
    priority 95           #!
    interface ens33
    virtual_router_id 101
    advert_int 1
    authentication {
        auth_type PASS
        auth_pass hh101
    }
    virtual_ipaddress {
        10.1.1.99/24 dev ens33 label ens33:1
    }
}

5、启动keepalived

systemctl enable keepalived.service
systemctl start keepalived.service
 
systemctl status keepalived.service
 
systemctl stop keepalived.service

2、安装keepalived（源码编译）

2.1、部署环境

软件版本
- keepalived：2.1.5
系统环境
- 10.1.1.11：CentOSLinuxrelease7.7.1908(Core)
- 10.1.1.12：CentOSLinuxrelease7.7.1908(Core)

2.2、安装前的准备

1、时间同步

#安装ntpdate
yum install ntpdate -y
#同步时间
ntpdate ntp1.aliyun.com

2、关闭防火墙

#查看防护墙状态
systemctl status firewalld.service
#关闭防火墙
systemctl stop firewalld.service
systemctl disable firewalld.service

3、禁用selinux

#查看selinux的状态
getenforce
#临时有效
setenforce 0
#永久有效。改系统文件/etc/sysconfig/selinux，然后重启机器
sed -i 's/SELINUX=enforcing/SELINUX=disabled/g' /etc/selinux/config

4、开启网路接口的多播功能

1 2	`#开启用于集群服务的网络接口的多播功能(MULTICAST状态)` `ip link` `set` `multicast on dev ens33`

2.3、安装keepalived

1、安装依赖

1	`]# yum install gcc openssl-devel libnl libnl3-devel -y`

2、安装keepalived

]# wget https://www.keepalived.org/software/keepalived-2.1.5.tar.gz --no-check-certificate
]# tar zvfx keepalived-2.1.5.tar.gz
 
]# cd keepalived-2.1.5/
]# mkdir -pv /apps/keepalived-2.1.5
 
]# ./configure --prefix=/apps/keepalived-2.1.5
]# make && make install

问题：在执行make的时候由很多警告信息（不知道是否有影响）

]# make
Making all in lib
make[1]: 进入目录“/root/keepalived-2.1.5/lib”
make  all-am
make[2]: 进入目录“/root/keepalived-2.1.5/lib”
  CC       memory.o
  CC       utils.o
utils.c:1091:1: 警告：function might be candidate for attribute ‘pure’ [-Wsuggest-attribute=pure]
 memcmp_constant_time(const void *s1, const void *s2, size_t n)
 ^
  CC       notify.o
  CC       timer.o
  CC       scheduler.o
  CC       vector.o
  CC       html.o
  CC       parser.o
  CC       signals.o
  CC       logger.o
  CC       list_head.o
  CC       rbtree.o
  CC       process.o
  CC       json_writer.o
  CC       rttables.o
rttables.c:60:2: 警告：missing initializer for field ‘next’ of ‘list_head_t’ [-Wmissing-field-initializers]
  { RTN_LOCAL, "local", {}},
  ^
In file included from rttables.c:31:0:
list_head.h:49:20: 附注：‘next’在此声明
  struct list_head *next, *prev;
                    ^
rttables.c:61:2: 警告：missing initializer for field ‘next’ of ‘list_head_t’ [-Wmissing-field-initializers]
  { RTN_NAT, "nat", {}},
  ^
In file included from rttables.c:31:0:
list_head.h:49:20: 附注：‘next’在此声明
  struct list_head *next, *prev;
                    ^
rttables.c:62:2: 警告：missing initializer for field ‘next’ of ‘list_head_t’ [-Wmissing-field-initializers]
  { RTN_BROADCAST, "broadcast", {}},
  ^
In file included from rttables.c:31:0:
list_head.h:49:20: 附注：‘next’在此声明
  struct list_head *next, *prev;
                    ^
rttables.c:63:2: 警告：missing initializer for field ‘next’ of ‘list_head_t’ [-Wmissing-field-initializers]
  { RTN_BROADCAST, "brd", {}},
  ^
In file included from rttables.c:31:0:
list_head.h:49:20: 附注：‘next’在此声明
  struct list_head *next, *prev;
                    ^
rttables.c:64:2: 警告：missing initializer for field ‘next’ of ‘list_head_t’ [-Wmissing-field-initializers]
  { RTN_ANYCAST, "anycast", {}},
  ^
In file included from rttables.c:31:0:
list_head.h:49:20: 附注：‘next’在此声明
  struct list_head *next, *prev;
                    ^
rttables.c:65:2: 警告：missing initializer for field ‘next’ of ‘list_head_t’ [-Wmissing-field-initializers]
  { RTN_MULTICAST, "multicast", {}},
  ^
In file included from rttables.c:31:0:
list_head.h:49:20: 附注：‘next’在此声明
  struct list_head *next, *prev;
                    ^
rttables.c:66:2: 警告：missing initializer for field ‘next’ of ‘list_head_t’ [-Wmissing-field-initializers]
  { RTN_PROHIBIT, "prohibit", {}},
  ^
In file included from rttables.c:31:0:
list_head.h:49:20: 附注：‘next’在此声明
  struct list_head *next, *prev;
                    ^
rttables.c:67:2: 警告：missing initializer for field ‘next’ of ‘list_head_t’ [-Wmissing-field-initializers]
  { RTN_UNREACHABLE, "unreachable", {}},
  ^
In file included from rttables.c:31:0:
list_head.h:49:20: 附注：‘next’在此声明
  struct list_head *next, *prev;
                    ^
rttables.c:68:2: 警告：missing initializer for field ‘next’ of ‘list_head_t’ [-Wmissing-field-initializers]
  { RTN_BLACKHOLE, "blackhole", {}},
  ^
In file included from rttables.c:31:0:
list_head.h:49:20: 附注：‘next’在此声明
  struct list_head *next, *prev;
                    ^
rttables.c:69:2: 警告：missing initializer for field ‘next’ of ‘list_head_t’ [-Wmissing-field-initializers]
  { RTN_XRESOLVE, "xresolve", {}},
  ^
In file included from rttables.c:31:0:
list_head.h:49:20: 附注：‘next’在此声明
  struct list_head *next, *prev;
                    ^
rttables.c:70:2: 警告：missing initializer for field ‘next’ of ‘list_head_t’ [-Wmissing-field-initializers]
  { RTN_UNICAST, "unicast", {}},
  ^
In file included from rttables.c:31:0:
list_head.h:49:20: 附注：‘next’在此声明
  struct list_head *next, *prev;
                    ^
rttables.c:71:2: 警告：missing initializer for field ‘next’ of ‘list_head_t’ [-Wmissing-field-initializers]
  { RTN_THROW, "throw", {}},
  ^
In file included from rttables.c:31:0:
list_head.h:49:20: 附注：‘next’在此声明
  struct list_head *next, *prev;
                    ^
rttables.c:72:2: 警告：missing initializer for field ‘next’ of ‘list_head_t’ [-Wmissing-field-initializers]
  { 0, NULL, {}},
  ^
In file included from rttables.c:31:0:
list_head.h:49:20: 附注：‘next’在此声明
  struct list_head *next, *prev;
                    ^
rttables.c:76:2: 警告：missing initializer for field ‘next’ of ‘list_head_t’ [-Wmissing-field-initializers]
  { RTPROT_UNSPEC, "none", {}},
  ^
In file included from rttables.c:31:0:
list_head.h:49:20: 附注：‘next’在此声明
  struct list_head *next, *prev;
                    ^
rttables.c:77:2: 警告：missing initializer for field ‘next’ of ‘list_head_t’ [-Wmissing-field-initializers]
  { RTPROT_REDIRECT, "redirect", {}},
  ^
In file included from rttables.c:31:0:
list_head.h:49:20: 附注：‘next’在此声明
  struct list_head *next, *prev;
                    ^
rttables.c:78:2: 警告：missing initializer for field ‘next’ of ‘list_head_t’ [-Wmissing-field-initializers]
  { RTPROT_KERNEL, "kernel", {}},
  ^
In file included from rttables.c:31:0:
list_head.h:49:20: 附注：‘next’在此声明
  struct list_head *next, *prev;
                    ^
rttables.c:79:2: 警告：missing initializer for field ‘next’ of ‘list_head_t’ [-Wmissing-field-initializers]
  { RTPROT_BOOT, "boot", {}},
  ^
In file included from rttables.c:31:0:
list_head.h:49:20: 附注：‘next’在此声明
  struct list_head *next, *prev;
                    ^
rttables.c:80:2: 警告：missing initializer for field ‘next’ of ‘list_head_t’ [-Wmissing-field-initializers]
  { RTPROT_STATIC, "static", {}},
  ^
In file included from rttables.c:31:0:
list_head.h:49:20: 附注：‘next’在此声明
  struct list_head *next, *prev;
                    ^
rttables.c:82:2: 警告：missing initializer for field ‘next’ of ‘list_head_t’ [-Wmissing-field-initializers]
  { RTPROT_GATED, "gated", {}},
  ^
In file included from rttables.c:31:0:
list_head.h:49:20: 附注：‘next’在此声明
  struct list_head *next, *prev;
                    ^
rttables.c:83:2: 警告：missing initializer for field ‘next’ of ‘list_head_t’ [-Wmissing-field-initializers]
  { RTPROT_RA, "ra", {}},
  ^
In file included from rttables.c:31:0:
list_head.h:49:20: 附注：‘next’在此声明
  struct list_head *next, *prev;
                    ^
rttables.c:84:2: 警告：missing initializer for field ‘next’ of ‘list_head_t’ [-Wmissing-field-initializers]
  { RTPROT_MRT, "mrt", {}},
  ^
In file included from rttables.c:31:0:
list_head.h:49:20: 附注：‘next’在此声明
  struct list_head *next, *prev;
                    ^
rttables.c:85:2: 警告：missing initializer for field ‘next’ of ‘list_head_t’ [-Wmissing-field-initializers]
  { RTPROT_ZEBRA, "zebra", {}},
  ^
In file included from rttables.c:31:0:
list_head.h:49:20: 附注：‘next’在此声明
  struct list_head *next, *prev;
                    ^
rttables.c:86:2: 警告：missing initializer for field ‘next’ of ‘list_head_t’ [-Wmissing-field-initializers]
  { RTPROT_BIRD, "bird", {}},
  ^
In file included from rttables.c:31:0:
list_head.h:49:20: 附注：‘next’在此声明
  struct list_head *next, *prev;
                    ^
rttables.c:90:2: 警告：missing initializer for field ‘next’ of ‘list_head_t’ [-Wmissing-field-initializers]
  { RTPROT_DNROUTED, "dnrouted", {}},
  ^
In file included from rttables.c:31:0:
list_head.h:49:20: 附注：‘next’在此声明
  struct list_head *next, *prev;
                    ^
rttables.c:91:2: 警告：missing initializer for field ‘next’ of ‘list_head_t’ [-Wmissing-field-initializers]
  { RTPROT_XORP, "xorp", {}},
  ^
In file included from rttables.c:31:0:
list_head.h:49:20: 附注：‘next’在此声明
  struct list_head *next, *prev;
                    ^
rttables.c:92:2: 警告：missing initializer for field ‘next’ of ‘list_head_t’ [-Wmissing-field-initializers]
  { RTPROT_NTK, "ntk", {}},
  ^
In file included from rttables.c:31:0:
list_head.h:49:20: 附注：‘next’在此声明
  struct list_head *next, *prev;
                    ^
rttables.c:93:2: 警告：missing initializer for field ‘next’ of ‘list_head_t’ [-Wmissing-field-initializers]
  { RTPROT_DHCP, "dhcp", {}},
  ^
In file included from rttables.c:31:0:
list_head.h:49:20: 附注：‘next’在此声明
  struct list_head *next, *prev;
                    ^
rttables.c:94:2: 警告：missing initializer for field ‘next’ of ‘list_head_t’ [-Wmissing-field-initializers]
  { 0, NULL, {}},
  ^
In file included from rttables.c:31:0:
list_head.h:49:20: 附注：‘next’在此声明
  struct list_head *next, *prev;
                    ^
rttables.c:98:2: 警告：missing initializer for field ‘next’ of ‘list_head_t’ [-Wmissing-field-initializers]
  { RT_TABLE_DEFAULT, "default", {}},
  ^
In file included from rttables.c:31:0:
list_head.h:49:20: 附注：‘next’在此声明
  struct list_head *next, *prev;
                    ^
rttables.c:99:2: 警告：missing initializer for field ‘next’ of ‘list_head_t’ [-Wmissing-field-initializers]
  { RT_TABLE_MAIN, "main", {}},
  ^
In file included from rttables.c:31:0:
list_head.h:49:20: 附注：‘next’在此声明
  struct list_head *next, *prev;
                    ^
rttables.c:100:2: 警告：missing initializer for field ‘next’ of ‘list_head_t’ [-Wmissing-field-initializers]
  { RT_TABLE_LOCAL, "local", {}},
  ^
In file included from rttables.c:31:0:
list_head.h:49:20: 附注：‘next’在此声明
  struct list_head *next, *prev;
                    ^
rttables.c:101:2: 警告：missing initializer for field ‘next’ of ‘list_head_t’ [-Wmissing-field-initializers]
  { 0, NULL, {}},
  ^
In file included from rttables.c:31:0:
list_head.h:49:20: 附注：‘next’在此声明
  struct list_head *next, *prev;
                    ^
rttables.c:106:2: 警告：missing initializer for field ‘next’ of ‘list_head_t’ [-Wmissing-field-initializers]
  { RT_SCOPE_UNIVERSE, "global", {}},
  ^
In file included from rttables.c:31:0:
list_head.h:49:20: 附注：‘next’在此声明
  struct list_head *next, *prev;
                    ^
rttables.c:107:2: 警告：missing initializer for field ‘next’ of ‘list_head_t’ [-Wmissing-field-initializers]
  { RT_SCOPE_NOWHERE, "nowhere", {}},
  ^
In file included from rttables.c:31:0:
list_head.h:49:20: 附注：‘next’在此声明
  struct list_head *next, *prev;
                    ^
rttables.c:108:2: 警告：missing initializer for field ‘next’ of ‘list_head_t’ [-Wmissing-field-initializers]
  { RT_SCOPE_HOST, "host", {}},
  ^
In file included from rttables.c:31:0:
list_head.h:49:20: 附注：‘next’在此声明
  struct list_head *next, *prev;
                    ^
rttables.c:109:2: 警告：missing initializer for field ‘next’ of ‘list_head_t’ [-Wmissing-field-initializers]
  { RT_SCOPE_LINK, "link", {}},
  ^
In file included from rttables.c:31:0:
list_head.h:49:20: 附注：‘next’在此声明
  struct list_head *next, *prev;
                    ^
rttables.c:110:2: 警告：missing initializer for field ‘next’ of ‘list_head_t’ [-Wmissing-field-initializers]
  { RT_SCOPE_SITE, "site", {}},
  ^
In file included from rttables.c:31:0:
list_head.h:49:20: 附注：‘next’在此声明
  struct list_head *next, *prev;
                    ^
rttables.c:111:2: 警告：missing initializer for field ‘next’ of ‘list_head_t’ [-Wmissing-field-initializers]
  { 0, NULL, {}},
  ^
In file included from rttables.c:31:0:
list_head.h:49:20: 附注：‘next’在此声明
  struct list_head *next, *prev;
                    ^
  AR       liblib.a
make[2]: 离开目录“/root/keepalived-2.1.5/lib”
make[1]: 离开目录“/root/keepalived-2.1.5/lib”
Making all in keepalived
make[1]: 进入目录“/root/keepalived-2.1.5/keepalived”
Making all in core
make[2]: 进入目录“/root/keepalived-2.1.5/keepalived/core”
  CC       main.o
main.c: 在函数‘sigend’中:
main.c:952:34: 警告：assuming signed overflow does not occur when simplifying conditional to constant [-Wstrict-overflow]
   for (i = 0; i < NUM_CHILD_TERM && wait_count; i++) {
                                  ^
main.c:990:6: 警告：assuming signed overflow does not occur when simplifying conditional to constant [-Wstrict-overflow]
   if (wait_count) {
      ^
main.c:917:8: 警告：assuming signed overflow does not occur when simplifying conditional to constant [-Wstrict-overflow]
  while (wait_count) {
        ^
  CC       daemon.o
  CC       pidfile.o
  CC       layer4.o
  CC       smtp.o
  CC       global_data.o
  CC       global_parser.o
  CC       keepalived_netlink.o
  CC       namespaces.o
In file included from /usr/include/libnl3/netlink/socket.h:16:0,
                 from namespaces.c:171:
/usr/include/libnl3/netlink/handlers.h:51:15: 警告：‘struct nlmsgerr’在形参表内部声明 [默认启用]
        struct nlmsgerr *nlerr, void *arg);
               ^
/usr/include/libnl3/netlink/handlers.h:51:15: 警告：它的作用域仅限于此定义或声明，这可能并不是您想要的 [默认启用]
/usr/include/libnl3/netlink/handlers.h:51:15: 警告：‘struct sockaddr_nl’在形参表内部声明 [默认启用]
/usr/include/libnl3/netlink/handlers.h:137:18: 警告：‘struct sockaddr_nl’在形参表内部声明 [默认启用]
           struct ucred **));
                  ^
  CC       track_process.o
  CC       reload_monitor.o
  AR       libcore.a
make[2]: 离开目录“/root/keepalived-2.1.5/keepalived/core”
Making all in vrrp
make[2]: 进入目录“/root/keepalived-2.1.5/keepalived/vrrp”
  CC       vrrp_daemon.o
  CC       vrrp_print.o
  CC       vrrp_data.o
  CC       vrrp_parser.o
  CC       vrrp.o
  CC       vrrp_notify.o
  CC       vrrp_scheduler.o
vrrp_scheduler.c: 在函数‘try_up_instance’中:
vrrp_scheduler.c:612:2: 警告：missing initializer for field ‘ifa’ of ‘ip_address_t’ [-Wmissing-field-initializers]
  ip_address_t ip_addr = {};
  ^
In file included from ../../keepalived/include/vrrp_arp.h:33:0,
                 from vrrp_scheduler.c:43:
../../keepalived/include/vrrp_ipaddress.h:43:19: 附注：‘ifa’在此声明
  struct ifaddrmsg ifa;
                   ^
vrrp_scheduler.c: 在函数‘vrrp_dispatcher_read’中:
vrrp_scheduler.c:945:6: 警告：提领类型双关的指针将破坏强重叠规则 [-Wstrict-aliasing]
      vrrp->rx_ttl_hop_limit = *(unsigned int *)CMSG_DATA(cmsg);
      ^
In file included from /usr/include/netinet/ip.h:24:0,
                 from vrrp_scheduler.c:26:
vrrp_scheduler.c:951:60: 警告：提领类型双关的指针将破坏强重叠规则 [-Wstrict-aliasing]
      vrrp->multicast_pkt = IN6_IS_ADDR_MULTICAST(&((struct in6_pktinfo *)CMSG_DATA(cmsg))->ipi6_addr);
                                                            ^
  CC       vrrp_sync.o
  CC       vrrp_arp.o
  CC       vrrp_if.o
vrrp_if.c: 在函数‘set_default_garp_delay’中:
vrrp_if.c:434:2: 警告：missing initializer for field ‘garp_interval’ of ‘garp_delay_t’ [-Wmissing-field-initializers]
  garp_delay_t default_delay = {};
  ^
In file included from ../../keepalived/include/global_data.h:52:0,
                 from vrrp_if.c:54:
../../keepalived/include/vrrp_if.h:74:13: 附注：‘garp_interval’在此声明
  timeval_t  garp_interval;  /* Delay between sending gratuitous ARP messages on an interface */
             ^
  CC       vrrp_track.o
  CC       vrrp_ipaddress.o
vrrp_ipaddress.c: 在函数‘clear_diff_static_addresses’中:
vrrp_ipaddress.c:768:2: 警告：missing initializer for field ‘family’ of ‘vrrp_t’ [-Wmissing-field-initializers]
  vrrp_t old = {};
  ^
In file included from ../../keepalived/include/vrrp_ipaddress.h:35:0,
                 from vrrp_ipaddress.c:31:
../../keepalived/include/vrrp.h:213:15: 附注：‘family’在此声明
  sa_family_t  family;   /* AF_INET|AF_INET6 */
               ^
vrrp_ipaddress.c:769:2: 警告：missing initializer for field ‘family’ of ‘vrrp_t’ [-Wmissing-field-initializers]
  vrrp_t new = {};
  ^
In file included from ../../keepalived/include/vrrp_ipaddress.h:35:0,
                 from vrrp_ipaddress.c:31:
../../keepalived/include/vrrp.h:213:15: 附注：‘family’在此声明
  sa_family_t  family;   /* AF_INET|AF_INET6 */
               ^
  CC       vrrp_ndisc.o
  CC       vrrp_if_config.o
  CC       vrrp_static_track.o
  CC       vrrp_vmac.o
  CC       vrrp_ipsecah.o
  CC       vrrp_iproute.o
  CC       vrrp_iprule.o
  CC       vrrp_ip_rule_route_parser.o
  AR       libvrrp.a
make[2]: 离开目录“/root/keepalived-2.1.5/keepalived/vrrp”
Making all in check
make[2]: 进入目录“/root/keepalived-2.1.5/keepalived/check”
  CC       check_daemon.o
  CC       check_data.o
  CC       check_parser.o
  CC       check_api.o
  CC       check_tcp.o
  CC       check_http.o
  CC       check_ssl.o
  CC       check_smtp.o
  CC       check_misc.o
  CC       check_dns.o
  CC       check_print.o
  CC       ipwrapper.o
  CC       ipvswrapper.o
  CC       libipvs.o
  CC       check_udp.o
  CC       check_ping.o
  CC       check_file.o
  AR       libcheck.a
make[2]: 离开目录“/root/keepalived-2.1.5/keepalived/check”
Making all in trackers
make[2]: 进入目录“/root/keepalived-2.1.5/keepalived/trackers”
  CC       track_file.o
  AR       libtracker.a
make[2]: 离开目录“/root/keepalived-2.1.5/keepalived/trackers”
Making all in etc
make[2]: 进入目录“/root/keepalived-2.1.5/keepalived/etc”
Making all in init
make[3]: 进入目录“/root/keepalived-2.1.5/keepalived/etc/init”
make[3]: 对“all”无需做任何事。
make[3]: 离开目录“/root/keepalived-2.1.5/keepalived/etc/init”
Making all in init.d
make[3]: 进入目录“/root/keepalived-2.1.5/keepalived/etc/init.d”
make[3]: 对“all”无需做任何事。
make[3]: 离开目录“/root/keepalived-2.1.5/keepalived/etc/init.d”
make[3]: 进入目录“/root/keepalived-2.1.5/keepalived/etc”
make[3]: 对“all-am”无需做任何事。
make[3]: 离开目录“/root/keepalived-2.1.5/keepalived/etc”
make[2]: 离开目录“/root/keepalived-2.1.5/keepalived/etc”
make[2]: 进入目录“/root/keepalived-2.1.5/keepalived”
  CC       main.o
  CCLD     keepalived
  EDIT     keepalived.service
make[2]: 离开目录“/root/keepalived-2.1.5/keepalived”
make[1]: 离开目录“/root/keepalived-2.1.5/keepalived”
Making all in doc
make[1]: 进入目录“/root/keepalived-2.1.5/doc”
Making all in man/man8
make[2]: 进入目录“/root/keepalived-2.1.5/doc/man/man8”
  EDIT     keepalived.8
make[2]: 离开目录“/root/keepalived-2.1.5/doc/man/man8”
make[2]: 进入目录“/root/keepalived-2.1.5/doc”
make[2]: 对“all-am”无需做任何事。
make[2]: 离开目录“/root/keepalived-2.1.5/doc”
make[1]: 离开目录“/root/keepalived-2.1.5/doc”
Making all in genhash
make[1]: 进入目录“/root/keepalived-2.1.5/genhash”
  CC       main.o
main.c: 在函数‘usage’中:
main.c:99:3: 警告：字符串长‘1003’比‘509’(ISO C90 被要求支持的最大长度) 还要长 [-Woverlength-strings]
   "   --timeout         -t       Timeout in seconds\n");
   ^
  CC       sock.o
  CC       layer4.o
  CC       http.o
  CC       ssl.o
  CCLD     genhash
make[1]: 离开目录“/root/keepalived-2.1.5/genhash”
Making all in bin_install
make[1]: 进入目录“/root/keepalived-2.1.5/bin_install”
make[1]: 离开目录“/root/keepalived-2.1.5/bin_install”
make[1]: 进入目录“/root/keepalived-2.1.5”
  EDIT     README
make[1]: 离开目录“/root/keepalived-2.1.5”

View Code

3、修改unit文件

创建软链

1 2	`]# cd /apps/` `]# ln -s keepalived-2.1.5 keepalived`

默认会自动生成unit文件
- 需要修改自动生成的unit文件，否则不能使用systemctl stop keepalived.service命令停止服务
- keepalived默认读取的配置文件是/etc/keepalived/keepalived.conf，使用-f指定要使用的配置文件。

]# vim /usr/lib/systemd/system/keepalived.service 
[Unit]
Description=LVS and VRRP High Availability Monitor
After=network-online.target syslog.target
Wants=network-online.target
  
[Service]
Type=forking
EnvironmentFile=-/apps/keepalived/etc/sysconfig/keepalived
ExecStart=/apps/keepalived/sbin/keepalived -f /apps/keepalived/etc/keepalived/keepalived.conf $KEEPALIVED_OPTIONS
Restart=on-failure
RestartSec=5
LimitNOFILE=65536
  
[Install]
WantedBy=multi-user.target

重读系统服务配置，使其生效

1	`]# systemctl daemon-reload`

4、keepalived配置文件

修改配置文件/apps/keepalived/etc/keepalived/keepalived.conf
- 这里仅仅实现了vip飘逸（通过启停keepalived）

主备模型之主节点(10.1.1.11)

global_defs {
    notification_email {
        root@localhost
    }
    notification_email_from keepalived@hengha11
    smtp_server 127.0.0.1
    smtp_connect_timeout 30
 
    router_id hengha11
    vrrp_mcast_group4 224.1.1.1
}
 
vrrp_instance VR_1 {
    state MASTER
    priority 100
    interface ens33
    virtual_router_id 101
    advert_int 1
    authentication {
        auth_type PASS
        auth_pass hh101
    }
    virtual_ipaddress {
        10.1.1.99/24 dev ens33 label ens33:1
    }
}

View Code

主备模型之备节点(10.1.1.12)

global_defs {
    notification_email {
        root@localhost
    }
    notification_email_from keepalived@hengha11
    smtp_server 127.0.0.1
    smtp_connect_timeout 30

    router_id hengha12
    vrrp_mcast_group4 224.1.1.1
}

vrrp_instance VR_1 {
    state BACKUP
    priority 95
    interface ens33
    virtual_router_id 101
    advert_int 1
    authentication {
        auth_type PASS
        auth_pass hh101
    }
    virtual_ipaddress {
        10.1.1.99/24 dev ens33 label ens33:1
    }
}

View Code

5、启动keepalived

systemctl enable keepalived.service
systemctl start keepalived.service
 
systemctl status keepalived.service
 
systemctl stop keepalived.service

3、配置keepalive的日志

keepalived默认将日志输出到/var/log/messages。

注意，keepalived 2.1.5修改日志路径的实验失败了（不知道是否与版本有关），但使用yum安装的进行实验是成功的。

1、修改EnvironmentFile文件

yum安装：/etc/sysconfig/keepalived
编译安装：$keepalived_home/etc/sysconfig/keepalived

]# vim /etc/sysconfig/keepalived
#KEEPALIVED_OPTIONS="-D"
KEEPALIVED_OPTIONS="-D -S 0"

2、修改rsyslog.conf文件

local后的数字要和-S的值一样

1 2	`]# vim /etc/rsyslog.conf` `local0.* /var/log/keepalived.log #添加`

3、重启服务

1 2	`]# systemctl restart rsyslog.service` `]# systemctl restart keepalived.service`

#                                                                                                                        #

posted @ 2022-07-27 01:34 麦恒阅读(59) 评论(0) 编辑收藏举报

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麦恒

keepalived01-安装keepalived

1、安装keepalived（yum）

1.1、部署环境

1.2、安装前的准备

1、时间同步

2、关闭防火墙

3、禁用selinux

4、开启网路接口的多播功能

1.3、安装keepalived

1、安装keepalived

2、查看keepalived服务的主要文件

3、修改unit文件

4、keepalived配置文件

5、启动keepalived

2、安装keepalived（源码编译）

2.1、部署环境

2.2、安装前的准备

1、时间同步

2、关闭防火墙

3、禁用selinux

4、开启网路接口的多播功能

2.3、安装keepalived

1、安装依赖

2、安装keepalived

3、修改unit文件

4、keepalived配置文件

5、启动keepalived

3、配置keepalive的日志

1、修改EnvironmentFile文件

2、修改rsyslog.conf文件

3、重启服务

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