Сборка и установка HAProxy 2.0 из исходников на Oracle Linux 7

Как известно у HAProxy нет своего репозитария для RedHat-подобных ОС, а в стандартных репозитариях Oracle Linux 7 есть только HAProxy 1.5 и 1.8

Как собрать свежую версию HAProxy 2.0 и первоначально настроить ее читайте ниже.

Исходные данные: Oracle Linux 7
Задача: Собрать и установить HAProxy 2.0 из исходников

1. Подготовка окружения для сборки:

yum install -y gcc pcre-static pcre-devel zlib-devel openssl-devel systemd-devel

2. Сборка HAProxy 2.0.x:

wget http://www.haproxy.org/download/2.0/src/haproxy-2.0.16.tar.gz
tar -zxf haproxy-2.0.16.tar.gz
cd haproxy-2.0.16
make TARGET=linux-glibc USE_PCRE=1 USE_OPENSSL=1 USE_ZLIB=1 USE_CRYPT_H=1 USE_LIBCRYPT=1 USE_SYSTEMD=1 USE_THREAD=1 USE_PTHREAD_PSHARED=1
cp haproxy /usr/sbin

3. Создание пользователя, вспомогательных каталогов и unit-файла для запуска HAProxy через systemd:

useradd -r -d /var/lib/haproxy -s /sbin/nologin haproxy
mkdir -p /etc/haproxy
mkdir -p /var/lib/haproxy
touch /var/lib/haproxy/stats
chown -R haproxy:haproxy /var/lib/haproxy
wget https://gist.githubusercontent.com/CHERTS/3dadb93ef08166cdcb02fda76c48f3ba/raw/haproxy.service -O /usr/lib/systemd/system/haproxy.service
wget https://gist.githubusercontent.com/CHERTS/43aca50aac0ef0e2a18c403d67f995ed/raw/haproxy.cfg -O /etc/haproxy/haproxy.cfg
(cat <<-EOF
# Add extra options to the haproxy daemon here. This can be useful for
# specifying multiple configuration files with multiple -f options.
# See haproxy(1) for a complete list of options.
OPTIONS=""
EOF
) > /etc/sysconfig/haproxy
systemctl daemon-reload
systemctl enable haproxy

4. Проверим корректность файла конфигурации:

haproxy -f /etc/haproxy/haproxy.cfg -c

5. Запустим HAProxy:

systemctl start haproxy

И проверим статус:

systemctl status haproxy

Результат:

● haproxy.service - HAProxy Load Balancer
   Loaded: loaded (/usr/lib/systemd/system/haproxy.service; enabled; vendor preset: disabled)
   Active: active (running) since Fri 2020-05-08 20:39:38 MSK; 10s ago
  Process: 8574 ExecStartPre=/usr/sbin/haproxy -f $CONFIG -c -q $EXTRAOPTS (code=exited, status=0/SUCCESS)
 Main PID: 8576 (haproxy)
   CGroup: /system.slice/haproxy.service
           ├─8576 /usr/sbin/haproxy -Ws -f /etc/haproxy/haproxy.cfg -p /run/haproxy.pid -S /run/haproxy-master.sock
           └─8578 /usr/sbin/haproxy -Ws -f /etc/haproxy/haproxy.cfg -p /run/haproxy.pid -S /run/haproxy-master.sock

May 08 20:39:38 myserver systemd[1]: Starting HAProxy Load Balancer...
May 08 20:39:38 myserver haproxy[8576]: [NOTICE] 128/203938 (8576) : New worker #1 (8578) forked
May 08 20:39:38 myserver systemd[1]: Started HAProxy Load Balancer.
May 08 20:39:38 myserver haproxy[8576]: [WARNING] 128/203938 (8578) : Server static/static is DOWN, reason: Layer4 connection prob...n queue.
May 08 20:39:38 myserver haproxy[8576]: [ALERT] 128/203938 (8578) : backend 'static' has no server available!
May 08 20:39:38 myserver haproxy[8576]: [WARNING] 128/203938 (8578) : Server app/app1 is DOWN, reason: Layer4 connection problem, ...n queue.
May 08 20:39:39 myserver haproxy[8576]: [WARNING] 128/203939 (8578) : Server app/app2 is DOWN, reason: Layer4 connection problem, ...n queue.
May 08 20:39:39 myserver haproxy[8576]: [WARNING] 128/203939 (8578) : Server app/app3 is DOWN, reason: Layer4 connection problem, ...n queue.
May 08 20:39:39 myserver haproxy[8576]: [WARNING] 128/203939 (8578) : Server app/app4 is DOWN, reason: Layer4 connection problem, ...n queue.
May 08 20:39:39 myserver haproxy[8576]: [ALERT] 128/203939 (8578) : backend 'app' has no server available!

6. Проверим статус HAProxy:

Проверим открытые порты:

netstat -ltupn | grep [h]aproxy

Результат:

tcp        0      0 0.0.0.0:5000            0.0.0.0:*               LISTEN      8578/haproxy
udp        0      0 0.0.0.0:11121           0.0.0.0:*                           8576/haproxy
udp        0      0 0.0.0.0:49219           0.0.0.0:*                           8578/haproxy
udp        0      0 0.0.0.0:21387           0.0.0.0:*                           8578/haproxy

Выведем статистику:

echo "show stat" | nc -U /var/lib/haproxy/stats

Результат:

# pxname,svname,qcur,qmax,scur,smax,slim,stot,bin,bout,dreq,dresp,ereq,econ,eresp,wretr,wredis,status,weight,act,bck,chkfail,chkdown,lastchg,downtime,qlimit,pid,iid,sid,throttle,lbtot,tracked,type,rate,rate_lim,rate_max,check_status,check_code,check_duration,hrsp_1xx,hrsp_2xx,hrsp_3xx,hrsp_4xx,hrsp_5xx,hrsp_other,hanafail,req_rate,req_rate_max,req_tot,cli_abrt,srv_abrt,comp_in,comp_out,comp_byp,comp_rsp,lastsess,last_chk,last_agt,qtime,ctime,rtime,ttime,agent_status,agent_code,agent_duration,check_desc,agent_desc,check_rise,check_fall,check_health,agent_rise,agent_fall,agent_health,addr,cookie,mode,algo,conn_rate,conn_rate_max,conn_tot,intercepted,dcon,dses,wrew,connect,reuse,cache_lookups,cache_hits,srv_icur,src_ilim,qtime_max,ctime_max,rtime_max,ttime_max,
main,FRONTEND,,,0,0,3000,0,0,0,0,0,0,,,,,OPEN,,,,,,,,,1,2,0,,,,0,0,0,0,,,,0,0,0,0,0,0,,0,0,0,,,0,0,0,0,,,,,,,,,,,,,,,,,,,,,http,,0,0,0,0,0,0,0,,,0,0,,,,,,,
static,static,0,0,0,0,,0,0,0,,0,,0,0,0,0,DOWN,1,1,0,1,1,94,94,,1,3,1,,0,,2,0,,0,L4CON,,0,0,0,0,0,0,0,,,,,0,0,,,,,-1,Connection refused,,0,0,0,0,,,,Layer4 connection problem,,2,3,0,,,,127.0.0.1:4331,,http,,,,,,,,0,0,0,,,0,,0,0,0,0,
static,BACKEND,0,0,0,0,300,0,0,0,0,0,,0,0,0,0,DOWN,0,0,0,,1,94,94,,1,3,0,,0,,1,0,,0,,,,0,0,0,0,0,0,,,,0,0,0,0,0,0,0,-1,,,0,0,0,0,,,,,,,,,,,,,,http,roundrobin,,,,,,,0,0,0,0,0,,,0,0,0,0,
app,app1,0,0,0,0,,0,0,0,,0,,0,0,0,0,DOWN,1,1,0,1,1,94,94,,1,4,1,,0,,2,0,,0,L4CON,,0,0,0,0,0,0,0,,,,,0,0,,,,,-1,Connection refused,,0,0,0,0,,,,Layer4 connection problem,,2,3,0,,,,127.0.0.1:5001,,http,,,,,,,,0,0,0,,,0,,0,0,0,0,
app,app2,0,0,0,0,,0,0,0,,0,,0,0,0,0,DOWN,1,1,0,1,1,93,93,,1,4,2,,0,,2,0,,0,L4CON,,0,0,0,0,0,0,0,,,,,0,0,,,,,-1,Connection refused,,0,0,0,0,,,,Layer4 connection problem,,2,3,0,,,,127.0.0.1:5002,,http,,,,,,,,0,0,0,,,0,,0,0,0,0,
app,app3,0,0,0,0,,0,0,0,,0,,0,0,0,0,DOWN,1,1,0,1,1,93,93,,1,4,3,,0,,2,0,,0,L4CON,,0,0,0,0,0,0,0,,,,,0,0,,,,,-1,Connection refused,,0,0,0,0,,,,Layer4 connection problem,,2,3,0,,,,127.0.0.1:5003,,http,,,,,,,,0,0,0,,,0,,0,0,0,0,
app,app4,0,0,0,0,,0,0,0,,0,,0,0,0,0,DOWN,1,1,0,1,1,93,93,,1,4,4,,0,,2,0,,0,L4CON,,0,0,0,0,0,0,0,,,,,0,0,,,,,-1,Connection refused,,0,0,0,0,,,,Layer4 connection problem,,2,3,0,,,,127.0.0.1:5004,,http,,,,,,,,0,0,0,,,0,,0,0,0,0,
app,BACKEND,0,0,0,0,300,0,0,0,0,0,,0,0,0,0,DOWN,0,0,0,,1,93,93,,1,4,0,,0,,1,0,,0,,,,0,0,0,0,0,0,,,,0,0,0,0,0,0,0,-1,,,0,0,0,0,,,,,,,,,,,,,,http,roundrobin,,,,,,,0,0,0,0,0,,,0,0,0,0,

Как мы видим, HAProxy успешно запустился с типовым файлом конфигурации.

На этом все, до скорых встреч. Если у Вас возникли вопросы или Вы хотите чтобы я помог Вам, то Вы всегда можете связаться со мной разными доступными способами.


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