How to configure Load Balancer For 3 Nodes HA

Infrastructure
1

Hi Morpheus Community,
I have deployed Morpheus 3 Nodes HA.
I have installed HAproxy on a separate machine. When I am trying to load balancing the 3 Nodes via HAProcy it gives me the following error.

" 404 Not Found

nginx "

My haproxy config file is Below:

global
    log         127.0.0.1:514 local2
    chroot      /var/lib/haproxy
    pidfile     /var/run/haproxy.pid
    maxconn     4000
    user        haproxy
    group       haproxy
    daemon

    # turn on stats unix socket
    stats socket /var/lib/haproxy/stats

    # utilize system-wide crypto-policies
#    ssl-default-bind-ciphers PROFILE=SYSTEM
 #   ssl-default-server-ciphers PROFILE=SYSTEM

defaults
    mode                    http
    log                     global
    option                  httplog
    option                  dontlognull
    option http-server-close
    option forwardfor       except 127.0.0.0/8
    option                  redispatch
    retries                 3
    timeout http-request    10s
    timeout queue           1m
    timeout connect         10s
    timeout client          1m
    timeout server          1m
    timeout http-keep-alive 10s
    timeout check           10s
    maxconn                 3000

frontend main
    mode http
    bind *:443
    default_backend             mybackend

backend mybackend
    mode http
    option      httpchk
    option httpchk GET /ping
    http-check expect string PING
    balance     leastconn
    server      morpheus-server1 192.168.72.101:443 check ssl verify none
    server      morpheus-server2 192.168.72.102:443 check ssl verify none
    server      morpheus-server3 192.168.72.103:443 check ssl verify none

In the /etc/hosts file of haproxy I added all the 3 Node’s name and IPs. And in the /etc/hosts file of all the three server I added the HAproxy’s name and Ip. And also in the /etc/morpheus/morpheus.rb file of all the three nodes I replaced the appliance url with load balancer ip address(HAproxy ip).
Any here to Guide me Please.

Thank You
Basharat.

2

journalctl should give you an idea of what is going on. If you have the dashboard configured you may be able to navigate to: /haproxy?stats and see if there are any online servers.

3

Hi @cbunge.
There is no error in my config file. The error is when I trying to access my load balancer ip it redirect me to nginx page. What’s the problem I didn’t get.

4

I expect you have done this, but always worth stating:

  • Ensure the haproxy.cfg is correct. I think this will spit out any issues.
haproxy -c -f /etc/haproxy/haproxy.cfg
  • Reload the config.
systemctl reload haproxy

If that does not help please reply, and we’ll try compare your example against known working configuration.

5

I believe I only see the 404 when the backend servers are not live in the HAProxy. I would check your health checks.

1 Like
6

When I execute this command

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

It gives me “Configuration file is valid”.

And the Reload and restart couldn’t make any affect.

7

Screenshot 2023-12-19 095059
Screenshot 2023-12-19 0950591872Ă—504 44.1 KB

8

Screenshot 2023-12-19 105625
Screenshot 2023-12-19 1056251853Ă—494 44.5 KB

9

If you navigate to one of the nodes directly do you get the log-in page?

10

Yeah! Thank you,
I resolved the issue, actually my port 443 was Listening at some other addresses. That’s why it is creating issue.

Thank you all.

1 Like