Ubantu19.04部署haproxy和keepalived服务
Ubantu19.04部署haproxy和keepalived服务
作者：尹正杰
版权声明：原创作品，谢绝转载！否则将追究法律责任。
一.安装keepalived和haproxy软件服务
1>.安装ubantu系统
博主推荐阅读: https://www.cnblogs.com/yinzhengjie/p/12180899.html
2>.部署架构
haproxy101.yinzhengjie.org.cn
keepalived
haproxy201.yinzhengjie.org.cn
keepalived
3>.安装haproxy和keepalived软件
root@haproxy101:~# apt-get -y install haproxy keepalived Reading package lists... Done Building dependency tree Reading state information... Done The following additional packages will be installed: ipvsadm libgdbm5 liblua5.3-0 libperl5.26 libsensors4 libsnmp-base libsnmp30 perl-modules-5.26 Suggested packages: vim-haproxy haproxy-doc heartbeat ldirectord gdbm-l10n lm-sensors snmp-mibs-downloader The following NEW packages will be installed: haproxy ipvsadm keepalived libgdbm5 liblua5.3-0 libperl5.26 libsensors4 libsnmp-base libsnmp30 perl-modules-5.26 0 upgraded, 10 newly installed, 0 to remove and 19 not upgraded. Need to get 9,008 kB of archives. After this operation, 49.1 MB of additional disk space will be used. Get:1 http://mirrors.aliyun.com/ubuntu bionic-security/main amd64 liblua5.3-0 amd64 5.3.3-1ubuntu0.18.04.1 [115 kB] Get:2 http://mirrors.aliyun.com/ubuntu bionic-security/main amd64 haproxy amd64 1.8.8-1ubuntu0.9 [1,117 kB] Get:3 http://mirrors.aliyun.com/ubuntu bionic-security/main amd64 perl-modules-5.26 all 5.26.1-6ubuntu0.3 [2,763 kB] Get:4 http://mirrors.aliyun.com/ubuntu bionic/main amd64 libgdbm5 amd64 1.14.1-6 [26.0 kB] Get:5 http://mirrors.aliyun.com/ubuntu bionic-security/main amd64 libperl5.26 amd64 5.26.1-6ubuntu0.3 [3,527 kB] Get:6 http://mirrors.aliyun.com/ubuntu bionic/main amd64 libsensors4 amd64 1:3.4.0-4 [28.8 kB] Get:7 http://mirrors.aliyun.com/ubuntu bionic-updates/main amd64 libsnmp-base all 5.7.3+dfsg-1.8ubuntu3.3 [224 kB] Get:8 http://mirrors.aliyun.com/ubuntu bionic-updates/main amd64 libsnmp30 amd64 5.7.3+dfsg-1.8ubuntu3.3 [929 kB] Get:9 http://mirrors.aliyun.com/ubuntu bionic-security/main amd64 keepalived amd64 1:1.3.9-1ubuntu0.18.04.2 [244 kB] Get:10 http://mirrors.aliyun.com/ubuntu bionic-updates/main amd64 ipvsadm amd64 1:1.28-3ubuntu0.18.04.1 [35.5 kB] Fetched 9,008 kB in 3s (3,181 kB/s) Selecting previously unselected package liblua5.3-0:amd64. (Reading database ... 67311 files and directories currently installed.) Preparing to unpack .../0-liblua5.3-0_5.3.3-1ubuntu0.18.04.1_amd64.deb ... Unpacking liblua5.3-0:amd64 (5.3.3-1ubuntu0.18.04.1) ... Selecting previously unselected package haproxy. Preparing to unpack .../1-haproxy_1.8.8-1ubuntu0.9_amd64.deb ... Unpacking haproxy (1.8.8-1ubuntu0.9) ... Selecting previously unselected package perl-modules-5.26. Preparing to unpack .../2-perl-modules-5.26_5.26.1-6ubuntu0.3_all.deb ... Unpacking perl-modules-5.26 (5.26.1-6ubuntu0.3) ... Selecting previously unselected package libgdbm5:amd64. Preparing to unpack .../3-libgdbm5_1.14.1-6_amd64.deb ... Unpacking libgdbm5:amd64 (1.14.1-6) ... Selecting previously unselected package libperl5.26:amd64. Preparing to unpack .../4-libperl5.26_5.26.1-6ubuntu0.3_amd64.deb ... Unpacking libperl5.26:amd64 (5.26.1-6ubuntu0.3) ... Selecting previously unselected package libsensors4:amd64. Preparing to unpack .../5-libsensors4_1%3a3.4.0-4_amd64.deb ... Unpacking libsensors4:amd64 (1:3.4.0-4) ... Selecting previously unselected package libsnmp-base. Preparing to unpack .../6-libsnmp-base_5.7.3+dfsg-1.8ubuntu3.3_all.deb ... Unpacking libsnmp-base (5.7.3+dfsg-1.8ubuntu3.3) ... Selecting previously unselected package libsnmp30:amd64. Preparing to unpack .../7-libsnmp30_5.7.3+dfsg-1.8ubuntu3.3_amd64.deb ... Unpacking libsnmp30:amd64 (5.7.3+dfsg-1.8ubuntu3.3) ... Selecting previously unselected package keepalived. Preparing to unpack .../8-keepalived_1%3a1.3.9-1ubuntu0.18.04.2_amd64.deb ... Unpacking keepalived (1:1.3.9-1ubuntu0.18.04.2) ... Selecting previously unselected package ipvsadm. Preparing to unpack .../9-ipvsadm_1%3a1.28-3ubuntu0.18.04.1_amd64.deb ... Unpacking ipvsadm (1:1.28-3ubuntu0.18.04.1) ... Setting up ipvsadm (1:1.28-3ubuntu0.18.04.1) ... Setting up perl-modules-5.26 (5.26.1-6ubuntu0.3) ... Setting up libgdbm5:amd64 (1.14.1-6) ... Setting up libsnmp-base (5.7.3+dfsg-1.8ubuntu3.3) ... Setting up libperl5.26:amd64 (5.26.1-6ubuntu0.3) ... Setting up libsensors4:amd64 (1:3.4.0-4) ... Setting up liblua5.3-0:amd64 (5.3.3-1ubuntu0.18.04.1) ... Setting up haproxy (1.8.8-1ubuntu0.9) ... Created symlink /etc/systemd/system/multi-user.target.wants/haproxy.service → /lib/systemd/system/haproxy.service. Setting up libsnmp30:amd64 (5.7.3+dfsg-1.8ubuntu3.3) ... Setting up keepalived (1:1.3.9-1ubuntu0.18.04.2) ... Created symlink /etc/systemd/system/multi-user.target.wants/keepalived.service → /lib/systemd/system/keepalived.service. Processing triggers for rsyslog (8.32.0-1ubuntu7) ... Processing triggers for systemd (240-6ubuntu5) ... Processing triggers for man-db (2.8.5-2) ... Processing triggers for dbus (1.12.12-1ubuntu1) ... Processing triggers for libc-bin (2.29-0ubuntu2) ... root@haproxy101:~#
root@haproxy201:~# apt-get -y install haproxy keepalived Reading package lists... Done Building dependency tree Reading state information... Done haproxy is already the newest version (1.8.8-1ubuntu0.9). The following additional packages will be installed: ipvsadm libgdbm5 libperl5.26 libsensors4 libsnmp-base libsnmp30 perl-modules-5.26 Suggested packages: heartbeat ldirectord gdbm-l10n lm-sensors snmp-mibs-downloader The following NEW packages will be installed: ipvsadm keepalived libgdbm5 libperl5.26 libsensors4 libsnmp-base libsnmp30 perl-modules-5.26 upgraded, 8 newly installed, 0 to remove and 19 not upgraded. Need to get 7,777 kB of archives. After this operation, 46.2 MB of additional disk space will be used. Get:1 http://mirrors.aliyun.com/ubuntu bionic-security/main amd64 perl-modules-5.26 all 5.26.1-6ubuntu0.3 [2,763 kB] Get:2 http://mirrors.aliyun.com/ubuntu bionic/main amd64 libgdbm5 amd64 1.14.1-6 [26.0 kB] Get:3 http://mirrors.aliyun.com/ubuntu bionic-security/main amd64 libperl5.26 amd64 5.26.1-6ubuntu0.3 [3,527 kB] Get:4 http://mirrors.aliyun.com/ubuntu bionic/main amd64 libsensors4 amd64 1:3.4.0-4 [28.8 kB] Get:5 http://mirrors.aliyun.com/ubuntu bionic-updates/main amd64 libsnmp-base all 5.7.3+dfsg-1.8ubuntu3.3 [224 kB] Get:6 http://mirrors.aliyun.com/ubuntu bionic-updates/main amd64 libsnmp30 amd64 5.7.3+dfsg-1.8ubuntu3.3 [929 kB] Get:7 http://mirrors.aliyun.com/ubuntu bionic-security/main amd64 keepalived amd64 1:1.3.9-1ubuntu0.18.04.2 [244 kB] Get:8 http://mirrors.aliyun.com/ubuntu bionic-updates/main amd64 ipvsadm amd64 1:1.28-3ubuntu0.18.04.1 [35.5 kB] Fetched 7,777 kB in 1s (6,896 kB/s) Selecting previously unselected package perl-modules-5.26. (Reading database ... 67437 files and directories currently installed.) Preparing to unpack .../0-perl-modules-5.26_5.26.1-6ubuntu0.3_all.deb ... Unpacking perl-modules-5.26 (5.26.1-6ubuntu0.3) ... Selecting previously unselected package libgdbm5:amd64. Preparing to unpack .../1-libgdbm5_1.14.1-6_amd64.deb ... Unpacking libgdbm5:amd64 (1.14.1-6) ... Selecting previously unselected package libperl5.26:amd64. Preparing to unpack .../2-libperl5.26_5.26.1-6ubuntu0.3_amd64.deb ... Unpacking libperl5.26:amd64 (5.26.1-6ubuntu0.3) ... Selecting previously unselected package libsensors4:amd64. Preparing to unpack .../3-libsensors4_1%3a3.4.0-4_amd64.deb ... Unpacking libsensors4:amd64 (1:3.4.0-4) ... Selecting previously unselected package libsnmp-base. Preparing to unpack .../4-libsnmp-base_5.7.3+dfsg-1.8ubuntu3.3_all.deb ... Unpacking libsnmp-base (5.7.3+dfsg-1.8ubuntu3.3) ... Selecting previously unselected package libsnmp30:amd64. Preparing to unpack .../5-libsnmp30_5.7.3+dfsg-1.8ubuntu3.3_amd64.deb ... Unpacking libsnmp30:amd64 (5.7.3+dfsg-1.8ubuntu3.3) ... Selecting previously unselected package keepalived. Preparing to unpack .../6-keepalived_1%3a1.3.9-1ubuntu0.18.04.2_amd64.deb ... Unpacking keepalived (1:1.3.9-1ubuntu0.18.04.2) ... Selecting previously unselected package ipvsadm. Preparing to unpack .../7-ipvsadm_1%3a1.28-3ubuntu0.18.04.1_amd64.deb ... Unpacking ipvsadm (1:1.28-3ubuntu0.18.04.1) ... Setting up ipvsadm (1:1.28-3ubuntu0.18.04.1) ... Setting up perl-modules-5.26 (5.26.1-6ubuntu0.3) ... Setting up libgdbm5:amd64 (1.14.1-6) ... Setting up libsnmp-base (5.7.3+dfsg-1.8ubuntu3.3) ... Setting up libperl5.26:amd64 (5.26.1-6ubuntu0.3) ... Setting up libsensors4:amd64 (1:3.4.0-4) ... Setting up libsnmp30:amd64 (5.7.3+dfsg-1.8ubuntu3.3) ... Setting up keepalived (1:1.3.9-1ubuntu0.18.04.2) ... Created symlink /etc/systemd/system/multi-user.target.wants/keepalived.service → /lib/systemd/system/keepalived.service. Processing triggers for systemd (240-6ubuntu5) ... Processing triggers for man-db (2.8.5-2) ... Processing triggers for dbus (1.12.12-1ubuntu1) ... Processing triggers for libc-bin (2.29-0ubuntu2) ... root@haproxy201:~#
二.配置keepalived服务
1>.编辑keepalived的配置文件
root@haproxy101:~# cp /usr/share/doc/keepalived/samples/keepalived.conf.sample /etc/keepalived/keepalived.conf root@haproxy101:~# root@haproxy101:~# vim /etc/keepalived/keepalived.conf root@haproxy101:~# root@haproxy101:~# cat /etc/keepalived/keepalived.conf ! Configuration File for keepalived global_defs { notification_email { acassen } notification_email_from Alexandre.Cassen@firewall.loc smtp_server 192.168.200.1 smtp_connect_timeout 30 router_id LVS_DEVEL } vrrp_instance VI_1 { interface ens33 virtual_router_id 50 nopreempt priority 100 advert_int 1 virtual_ipaddress { 192.168.7.253 dev ens33 label ens33:0 } } root@haproxy101:~#
2>.启动keepalived服务并设置开机自启动
root@haproxy101:~# ifconfig ens33: flags=4163<UP,BROADCAST,RUNNING,MULTICAST> mtu 1500 inet 192.168.7.101 netmask 255.255.248.0 broadcast 192.168.7.255 inet6 fe80::20c:29ff:fe96:713b prefixlen 64 scopeid 0x20<link> ether 00:0c:29:96:71:3b txqueuelen 1000 (Ethernet) RX packets 13220 bytes 16776100 (16.7 MB) RX errors 0 dropped 0 overruns 0 frame 0 TX packets 3920 bytes 386861 (386.8 KB) TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0 lo: flags=73<UP,LOOPBACK,RUNNING> mtu 65536 inet 127.0.0.1 netmask 255.0.0.0 inet6 ::1 prefixlen 128 scopeid 0x10<host> loop txqueuelen 1000 (Local Loopback) RX packets 176 bytes 15256 (15.2 KB) RX errors 0 dropped 0 overruns 0 frame 0 TX packets 176 bytes 15256 (15.2 KB) TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0 root@haproxy101:~# root@haproxy101:~# systemctl start keepalived root@haproxy101:~# root@haproxy101:~# systemctl enable keepalived Synchronizing state of keepalived.service with SysV service script with /lib/systemd/systemd-sysv-install. Executing: /lib/systemd/systemd-sysv-install enable keepalived root@haproxy101:~# root@haproxy101:~# ifconfig ens33: flags=4163<UP,BROADCAST,RUNNING,MULTICAST> mtu 1500 inet 192.168.7.101 netmask 255.255.248.0 broadcast 192.168.7.255 inet6 fe80::20c:29ff:fe96:713b prefixlen 64 scopeid 0x20<link> ether 00:0c:29:96:71:3b txqueuelen 1000 (Ethernet) RX packets 13306 bytes 16783333 (16.7 MB) RX errors 0 dropped 0 overruns 0 frame 0 TX packets 4016 bytes 401026 (401.0 KB) TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0 ens33:0: flags=4163<UP,BROADCAST,RUNNING,MULTICAST> mtu 1500 inet 192.168.7.253 netmask 255.255.255.255 broadcast 0.0.0.0 ether 00:0c:29:96:71:3b txqueuelen 1000 (Ethernet) lo: flags=73<UP,LOOPBACK,RUNNING> mtu 65536 inet 127.0.0.1 netmask 255.0.0.0 inet6 ::1 prefixlen 128 scopeid 0x10<host> loop txqueuelen 1000 (Local Loopback) RX packets 184 bytes 16032 (16.0 KB) RX errors 0 dropped 0 overruns 0 frame 0 TX packets 184 bytes 16032 (16.0 KB) TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0 root@haproxy101:~#
3>.将"haproxy101.yinzhengjie.org.cn"节点的keepalived的配置文件拷贝到"haproxy201.yinzhengjie.org.cn"节点上。
root@haproxy101:~# uname -a Linux haproxy101.yinzhengjie.org.cn 5.0.0-13-generic #14-Ubuntu SMP Mon Apr 15 14:59:14 UTC 2019 x86_64 x86_64 x86_64 GNU/Linux root@haproxy101:~# root@haproxy101:~# scp /etc/keepalived/keepalived.conf root@192.168.7.201:/etc/keepalived/keepalived.conf The authenticity of host '192.168.7.201 (192.168.7.201)' can't be established. ECDSA key fingerprint is SHA256:8KwMmYtM6BGEuhMIy8q7zK9WyARxjqRa7NDuQba8ZH8. Are you sure you want to continue connecting (yes/no)? yes Warning: Permanently added '192.168.7.201' (ECDSA) to the list of known hosts. root@192.168.7.201's password: keepalived.conf 100% 424 188.4KB/s 00:00 root@haproxy101:~#
4>.修改"node201.yinzhengjie.org.cn"节点的优先级即可。
root@haproxy201:~# ll /etc/keepalived/ total 12 drwxr-xr-x 2 root root 4096 Jan 11 22:07 ./ drwxr-xr-x 89 root root 4096 Jan 11 21:41 ../ -rw-r--r-- 1 root root 424 Jan 11 22:07 keepalived.conf root@haproxy201:~# root@haproxy201:~# vim /etc/keepalived/keepalived.conf root@haproxy201:~# root@haproxy201:~# cat /etc/keepalived/keepalived.conf ! Configuration File for keepalived global_defs { notification_email { acassen } notification_email_from Alexandre.Cassen@firewall.loc smtp_server 192.168.200.1 smtp_connect_timeout 30 router_id LVS_DEVEL } vrrp_instance VI_1 { interface ens33 virtual_router_id 50 nopreempt priority 50 advert_int 1 virtual_ipaddress { 192.168.7.253 dev ens33 label ens33:0 } } root@haproxy201:~#
5>.在"node201.yinzhengjie.org.cn"节点启动keepalived服务并设置为开启启动
root@haproxy201:~# systemctl start keepalived root@haproxy201:~# root@haproxy201:~# systemctl enable keepalived Synchronizing state of keepalived.service with SysV service script with /lib/systemd/systemd-sysv-install. Executing: /lib/systemd/systemd-sysv-install enable keepalived root@haproxy201:~# root@haproxy201:~# ps -ef | grep keepalived root 1358 1 0 22:11 ? 00:00:00 /usr/sbin/keepalived root 1359 1358 0 22:11 ? 00:00:00 /usr/sbin/keepalived root 1360 1358 0 22:11 ? 00:00:00 /usr/sbin/keepalived root 1454 1062 0 22:12 pts/0 00:00:00 grep --color=auto keepalived root@haproxy201:~# root@haproxy201:~# root@haproxy201:~# systemctl status keepalived ● keepalived.service - Keepalive Daemon (LVS and VRRP) Loaded: loaded (/lib/systemd/system/keepalived.service; enabled; vendor preset: enabled) Active: active (running) since Sat 2020-01-11 22:11:43 CST; 1min 22s ago Main PID: 1358 (keepalived) Tasks: 3 (limit: 4619) Memory: 5.8M CGroup: /system.slice/keepalived.service ├─1358 /usr/sbin/keepalived ├─1359 /usr/sbin/keepalived └─1360 /usr/sbin/keepalived Jan 11 22:11:43 haproxy201.yinzhengjie.org.cn Keepalived[1358]: Starting Healthcheck child process, pid=1359 Jan 11 22:11:43 haproxy201.yinzhengjie.org.cn Keepalived_healthcheckers[1359]: Opening file '/etc/keepalived/keepalived.conf'. Jan 11 22:11:43 haproxy201.yinzhengjie.org.cn Keepalived[1358]: Starting VRRP child process, pid=1360 Jan 11 22:11:43 haproxy201.yinzhengjie.org.cn Keepalived_vrrp[1360]: Registering Kernel netlink reflector Jan 11 22:11:43 haproxy201.yinzhengjie.org.cn Keepalived_vrrp[1360]: Registering Kernel netlink command channel Jan 11 22:11:43 haproxy201.yinzhengjie.org.cn Keepalived_vrrp[1360]: Registering gratuitous ARP shared channel Jan 11 22:11:43 haproxy201.yinzhengjie.org.cn Keepalived_vrrp[1360]: Opening file '/etc/keepalived/keepalived.conf'. Jan 11 22:11:43 haproxy201.yinzhengjie.org.cn systemd[1]: Started Keepalive Daemon (LVS and VRRP). Jan 11 22:11:43 haproxy201.yinzhengjie.org.cn Keepalived_vrrp[1360]: Using LinkWatch kernel netlink reflector... Jan 11 22:11:43 haproxy201.yinzhengjie.org.cn Keepalived_vrrp[1360]: VRRP_Instance(VI_1) Entering BACKUP STATE root@haproxy201:~# root@haproxy201:~#
6>.停止"node101.yinzhengjie.org.cn"节点的keepalived服务
root@haproxy101:~# ifconfig ens33: flags=4163<UP,BROADCAST,RUNNING,MULTICAST> mtu 1500 inet 192.168.7.101 netmask 255.255.248.0 broadcast 192.168.7.255 inet6 fe80::20c:29ff:fe96:713b prefixlen 64 scopeid 0x20<link> ether 00:0c:29:96:71:3b txqueuelen 1000 (Ethernet) RX packets 14007 bytes 16851015 (16.8 MB) RX errors 0 dropped 0 overruns 0 frame 0 TX packets 5465 bytes 524770 (524.7 KB) TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0 ens33:0: flags=4163<UP,BROADCAST,RUNNING,MULTICAST> mtu 1500 inet 192.168.7.253 netmask 255.255.255.255 broadcast 0.0.0.0 ether 00:0c:29:96:71:3b txqueuelen 1000 (Ethernet) lo: flags=73<UP,LOOPBACK,RUNNING> mtu 65536 inet 127.0.0.1 netmask 255.0.0.0 inet6 ::1 prefixlen 128 scopeid 0x10<host> loop txqueuelen 1000 (Local Loopback) RX packets 184 bytes 16032 (16.0 KB) RX errors 0 dropped 0 overruns 0 frame 0 TX packets 184 bytes 16032 (16.0 KB) TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0 root@haproxy101:~# root@haproxy101:~# systemctl stop keepalived root@haproxy101:~# root@haproxy101:~# ifconfig ens33: flags=4163<UP,BROADCAST,RUNNING,MULTICAST> mtu 1500 inet 192.168.7.101 netmask 255.255.248.0 broadcast 192.168.7.255 inet6 fe80::20c:29ff:fe96:713b prefixlen 64 scopeid 0x20<link> ether 00:0c:29:96:71:3b txqueuelen 1000 (Ethernet) RX packets 14059 bytes 16855377 (16.8 MB) RX errors 0 dropped 0 overruns 0 frame 0 TX packets 5510 bytes 530628 (530.6 KB) TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0 lo: flags=73<UP,LOOPBACK,RUNNING> mtu 65536 inet 127.0.0.1 netmask 255.0.0.0 inet6 ::1 prefixlen 128 scopeid 0x10<host> loop txqueuelen 1000 (Local Loopback) RX packets 184 bytes 16032 (16.0 KB) RX errors 0 dropped 0 overruns 0 frame 0 TX packets 184 bytes 16032 (16.0 KB) TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0 root@haproxy101:~#
7>.查看"node201.yinzhengjie.org.cn"节点是否接管了VIP
root@haproxy201:~# ifconfig ens33: flags=4163<UP,BROADCAST,RUNNING,MULTICAST> mtu 1500 inet 192.168.7.201 netmask 255.255.248.0 broadcast 192.168.7.255 inet6 fe80::20c:29ff:fea6:ed5a prefixlen 64 scopeid 0x20<link> ether 00:0c:29:a6:ed:5a txqueuelen 1000 (Ethernet) RX packets 1454 bytes 122754 (122.7 KB) RX errors 0 dropped 0 overruns 0 frame 0 TX packets 878 bytes 148988 (148.9 KB) TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0 ens33:0: flags=4163<UP,BROADCAST,RUNNING,MULTICAST> mtu 1500 inet 192.168.7.253 netmask 255.255.255.255 broadcast 0.0.0.0 ether 00:0c:29:a6:ed:5a txqueuelen 1000 (Ethernet) lo: flags=73<UP,LOOPBACK,RUNNING> mtu 65536 inet 127.0.0.1 netmask 255.0.0.0 inet6 ::1 prefixlen 128 scopeid 0x10<host> loop txqueuelen 1000 (Local Loopback) RX packets 12 bytes 1180 (1.1 KB) RX errors 0 dropped 0 overruns 0 frame 0 TX packets 12 bytes 1180 (1.1 KB) TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0 root@haproxy201:~#
三.配置haproxy服务
1>.编辑haproxy的配置文件
root@haproxy101:~# cat /etc/haproxy/haproxy.cfg global maxconn 100000 user haproxy group haproxy daemon nbproc 2 cpu-map 1 0 cpu-map 2 1 nbthread 2 log 127.0.0.1 local5 info defaults option http-keep-alive option forwardfor option redispatch option abortonclose maxconn 100000 mode http timeout connect 300000ms timeout client 300000ms timeout server 300000ms listen status_page bind 192.168.7.253:8888 stats enable stats uri /haproxy-status stats auth admin:yinzhengjie stats realm "Welcome to the haproxy load balancer status page of YinZhengjie" listen WEB_PORT_80 bind 192.168.7.253:80 server web01 www.cnblogs.com:80/yinzhengjie/ check inter 3000 fall 3 rise 5 root@haproxy101:~# root@haproxy101:~# scp /etc/haproxy/haproxy.cfg root@192.168.7.201:/etc/haproxy/haproxy.cfg root@192.168.7.201's password: haproxy.cfg 100% 818 804.7KB/s 00:00 root@haproxy101:~#
2>.启动haproxy服务器
root@haproxy101:~# root@haproxy101:~# ss -ntl State Recv-Q Send-Q Local Address:Port Peer Address:Port LISTEN 0 128 127.0.0.53%lo:53 0.0.0.0:* LISTEN 0 128 0.0.0.0:22 0.0.0.0:* LISTEN 0 128 [::]:22 [::]:* root@haproxy101:~# root@haproxy101:~# systemctl restart haproxy root@haproxy101:~# root@haproxy101:~# ss -ntl State Recv-Q Send-Q Local Address:Port Peer Address:Port LISTEN 0 20480 192.168.7.253:80 0.0.0.0:* LISTEN 0 128 127.0.0.53%lo:53 0.0.0.0:* LISTEN 0 128 0.0.0.0:22 0.0.0.0:* LISTEN 0 20480 192.168.7.253:8888 0.0.0.0:* LISTEN 0 128 [::]:22 [::]:* root@haproxy101:~#
3>.
4>.
5>.
当你的才华还撑不起你的野心的时候，你就应该静下心来学习。当你的能力还驾驭不了你的目标的时候，你就应该沉下心来历练。问问自己，想要怎样的人生。
欢迎交流学习技术交流，个人微信: "JasonYin2020"（添加时请备注来源及意图备注）
作者: 尹正杰, 博客: https://www.cnblogs.com/yinzhengjie/p/12174356.html
