/BASIC/How to add basic authentication on haproxy backend server

How to add basic authentication on haproxy backend server

# haproxy conf
global
  log 127.0.0.1   local1
  maxconn 4096

defaults
  mode http
  maxconn 2048

userlist AuthUsers
        user admin password $6$SydPP/et7BGN$C5VIhcn6OxuIaLPhCDCmzJyqDYQF8skik3J6sApkXPa6YPSVGutcgQPpdX/VEycGNi3sw7NxLSflEb53gzJtA1

frontend nginx-frontend
  bind *:5000
  mode http
  timeout connect 5s
  timeout client 5s
  timeout server 5s
  default_backend nginx-backend

  acl authusers_acl http_auth(AuthUsers)      
  http-request auth realm nginx-backend if !authusers_acl

backend nginx-backend
  server nginx nginx:80  check inter 5s rise 2 fall 3
  
#########

# Install this package to generate hash password
sudo apt-get install whois

# mkpasswd -m sha-512 <password>
mkpasswd -m sha-512 admin@456

# expected output
$6$gnGNapo/XeXYg39A$T/7TDfMrZXUDPbv5UPYemrdxdh5xEwqBrzSbpJYs9rfxLbQtgQzxyzkSGWIVOEGze8KrsA0urh3/dG.1xOx3M0

# Copy the generated password and paste in haproxy.cfg file

#Deploy the containers to test configuration

sudo docker run -d --name nginx nginx
sudo docker run -d -p 5000:5000 --name haproxy --link nginx:nginx -v /home/users/haproxy.cfg:/usr/local/etc/haproxy/haproxy.cfg haproxy

# Check in the browser, username and password will be prompted.

Source: stackoverflow.com

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