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haproxytechblog/blog20210705-01.cfg

Last active July 13, 2021 21:30
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HAProxy Configuration Basics: Load Balance Your Servers
Raw
blog20210705-01.cfg
defaults
mode http
timeout client 10s
timeout connect 5s
timeout server 10s
timeout http-request 10s
frontend myfrontend
bind 127.0.0.1:80
Raw
blog20210705-02.sh
$ sudo systemctl restart haproxy
Raw
blog20210705-03.sh
$ curl 127.0.0.1:80
<html><body><h1>503 Service Unavailable</h1>
No server is available to handle this request.
</body></html>
Raw
blog20210705-04.sh
$ python3 -m http.server 8000 --bind 127.0.0.1
Serving HTTP on 0.0.0.0 port 8000 (http://127.0.0.1:8000/) ...
Raw
blog20210705-05.cfg
defaults
mode http
timeout client 10s
timeout connect 5s
timeout server 10s
timeout http-request 10s
frontend myfrontend
bind 127.0.0.1:80
default_backend myservers
backend myservers
server server1 127.0.0.1:8000
Raw
blog20210705-06.sh
$ curl 127.0.0.1:80
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
<html>
...
</html>
Raw
blog20210705-07.cfg
frontend myfrontend
bind 127.0.0.1:80
default_backend myservers
backend myservers
server server1 127.0.0.1:8000
server server2 127.0.0.1:8001
server server3 127.0.0.1:8002
Raw
blog20210705-08.cfg
frontend myfrontend
bind 127.0.0.1:80,127.0.0.1:81
use_backend special if { dst_port 81 }
default_backend myservers
backend myservers
server server1 127.0.0.1:8000
server server2 127.0.0.1:8001
backend special
server server3 127.0.0.1:8002
Raw
blog20210705-09.cfg
frontend myfrontend
bind 127.0.0.1:80
bind 127.0.0.1:81
use_backend special if { dst_port 81 }
default_backend myservers
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