search string side menu

ELMA365 On-Premises > Prepare infrastructure > Load balancer / HAProxy configuration for document server

HAProxy configuration for document server

The architecture of a highly available ELMA365 cluster involves the interaction of ELMA365 application microservices with the R7-Office document server, ONLYOFFICE Docs Server. The HAProxy configuration discussed in this article assumes even load balancing of traffic between the two document servers.

Example HAProxy configuration for document server

HAProxy evenly distributes client connections arriving at r7office.your_domain between the two document servers. For more details on preparing the configuration for load balancing traffic between two document servers, refer to Install R7-Office document server.

Open the haproxy.cfg configuration file for editing using the command:

sudo nano /etc/haproxy/haproxy.cfg

Example configuration for load balancing between two document servers using HAProxy to add to the haproxy.cfg file:

### Docs Server ###
listen docsserver
    bind r7office.your_domain:80
    mode http
    balance leastconn
    server r7office1 r7office-server1.your_domain:80 check inter 2s
    server r7office2 r7office-server2.your_domain:80 check inter 2s
### Docs Server ###

Example HAProxy configuration using SSL

 
SSL can be enabled if OpenSSL support is embedded. In the crt parameter, specify the path to the PEM file containing the required certificates and associated private keys (fullchain certificate). If the file does not contain a private key, HAProxy will attempt to load the key from the same path with a .key suffix.

 
If a directory name is used instead of a PEM file, all files found in that directory will be loaded in alphabetical order, except for files ending in .issuer, .ocsp, or .sctl (reserved solutions).

 
In the ca-file parameter, specify the path to the PEM file containing the root certificate. Read more in the Configuration Manual for the HAProxy version used. Example for HAProxy 2.5:
 

### Docs Server ###
listen docsserver
    bind r7office.your_domain:443 ssl crt /etc/haproxy/ssl/r7office-server.your_domain.pem
    mode http
    balance leastconn
    server r7office1 r7office-server1.your_domain:443 check inter 2s ssl crt /etc/haproxy/ssl/r7office-server.your_domain.pem ca-file /etc/haproxy/ssl/rootCA_your_domain.pem
    server r7office2 r7office-server2.your_domain:443 check inter 2s ssl crt /etc/haproxy/ssl/r7office-server.your_domain.pem ca-file /etc/haproxy/ssl/rootCA_your_domain.pem
### Docs Server ###

Restart HAProxy:

sudo systemctl restart haproxy

haproxy-web-elma365.html proxy-s3-kubernetes.html

Found a typo? Highlight the text, press ctrl + enter and notify us