How you can Set up Plesk in a Excessive-Accessible Cluster

March 8, 2023 in Blog

HA Cluster: Configuring Software program

Internet hosting-related system companies

For the reason that software program liable for HA cluster will handle system companies like Plesk, nginx, and so on, we should always disable all these companies as they shouldn’t be began mechanically with system. With the following command, we disable auto-starting for these companies, which ought to be executed on the each nodes.

ha-node1 and ha-node2# for i in

plesk-ip-remapping
plesk-php74-fpm.service
plesk-php82-fpm.service
plesk-web-socket.service
plesk-task-manager.service
plesk-ssh-terminal.service
plesk-repaird.socket
sw-engine.service
sw-cp-server.service
psa.service
cron.service
xinetd.service
nginx.service
apache2.service httpd.service
mariadb.service mysql.service postgresql.service
named.service bind9.service named-chroot.service
postfix.service;
do systemctl disable $i && systemctl cease $i;

executed


As an output, you may even see traces like “Did not disable unit: Unit file bind9.service doesn’t exist”. This isn’t a essential error as a result of the command accommodates completely different title of the identical companies for various OSes like CentOS and Ubuntu or title of various companies that gives related performance (like MySQL and MariaDB). You probably have put in any extra part with Plesk like “php80”, you additionally have to disable a service for that part if a service was added to the server by the Plesk part.
Chances are you’ll run `ps ax` to double examine that there are not any extra operating companies associated to Plesk or any of its part.
Plesk Information
Within the earlier weblog submit, you may see how it’s potential to repeat the Plesk “vhosts” listing to the NFS storage. For HA cluster, we have to do the identical and some extra steps for the remainder of the Plesk directories to make them obtainable for nodes of the HA cluster.
On the NFS server, configure exporting of “/var/nfs/plesk-ha/plesk_files” the identical manner as “/var/nfs/plesk-ha/vhosts”. After configuring, you must see the directories can be found for distant mounting from the interior community.
ha-nfs# exportfs -v
/var/nfs/plesk-ha/vhosts

10.0.0.0/24(sync,wdelay,conceal,no_subtree_check,sec=sys,rw,safe,no_root_squash,no_all_squash)

/var/nfs/plesk-ha/plesk_files
10.0.0.0/24(sync,wdelay,conceal,no_subtree_check,sec=sys,rw,safe,no_root_squash,no_all_squash)

When exporting is configured, we might want to copy Plesk to the NFS. For that, we’ve got to pre-create a listing on every node for mounting NFS storage:
ha-node1 and ha-node2# mkdir -p /nfs/plesk_files
Information: vhosts
As we beforehand have determined to think about the ha-node1 as an lively node, the following instructions ought to be executed on the ha-node1. To repeat current vhosts listing, run the following instructions:
ha-node1# mount -t nfs -o "laborious,timeo=600,retrans=2,_netdev" 10.0.0.12:/var/nfs/plesk-ha/vhosts /mnt
ha-node1# cp -aRv /var/www/vhosts/* /mnt
ha-node1# umount /mnt
Information: Plesk-related
Additionally, as we beforehand have determined to think about the ha-node1 as an lively node, the following instructions ought to be executed on the ha-node1.
ha-node1# mount -t nfs -o "laborious,timeo=600,retrans=2,_netdev" 10.0.0.12:/var/nfs/plesk-ha/plesk_files /nfs/plesk_files
ha-node1# mkdir -p /nfs/plesk_files/and so on/{apache2,nginx,psa,sw,sw-cp-server,domainkeys,psa-webmail}
ha-node1# cp -a /and so on/passwd /nfs/plesk_files/and so on/
ha-node1# cp -aR /and so on/apache2/. /nfs/plesk_files/and so on/apache2
ha-node1# cp -aR /and so on/nginx/. /nfs/plesk_files/and so on/nginx
ha-node1# cp -aR /and so on/psa/. /nfs/plesk_files/and so on/psa
ha-node1# cp -aR /and so on/sw/. /nfs/plesk_files/and so on/sw
ha-node1# cp -aR /and so on/sw-cp-server/. /nfs/plesk_files/and so on/sw-cp-server
ha-node1# cp -aR /and so on/sw-engine/. /nfs/plesk_files/and so on/sw-engine
ha-node1# cp -aR /and so on/domainkeys/. /nfs/plesk_files/and so on/domainkeys
ha-node1# cp -aR /and so on/psa-webmail/. /nfs/plesk_files/and so on/psa-webmail
ha-node1# mkdir -p /nfs/plesk_files/var/{spool,named}
ha-node1# cp -aR /var/named/. /nfs/plesk_files/var/named
ha-node1# cp -aR /var/spool/. /nfs/plesk_files/var/spool
ha-node1# mkdir -p /nfs/plesk_files/choose/plesk/php/{7.4,8.2}/and so on
ha-node1# cp -aR /choose/plesk/php/7.4/and so on/. /nfs/plesk_files/choose/plesk/php/7.4/and so on
ha-node1# cp -aR /choose/plesk/php/8.2/and so on/. /nfs/plesk_files/choose/plesk/php/8.2/and so on
ha-node1# mkdir -p /nfs/plesk_files/usr/native/psa/{admin/conf,admin/plib/modules,and so on/modules,var/modules,var/certificates}
ha-node1# cp -aR /usr/native/psa/admin/conf/. /nfs/plesk_files/usr/native/psa/admin/conf
ha-node1# cp -aR /usr/native/psa/admin/plib/modules/. /nfs/plesk_files/usr/native/psa/admin/plib/modules
ha-node1# cp -aR /usr/native/psa/and so on/modules/. /nfs/plesk_files/usr/native/psa/and so on/modules
ha-node1# cp -aR /usr/native/psa/var/modules/. /nfs/plesk_files/usr/native/psa/var/modules
ha-node1# cp -aR /usr/native/psa/var/certificates/. /nfs/plesk_files/usr/native/psa/var/certificates
ha-node1# umount /nfs/plesk_files
Occasion Handler to maintain /and so on/passwd up2date
We have to replace the passwd and group file on the NFS storage each time when Plesk updates the system customers. For that, we’ll create a number of occasion handlers for situations like area creating, subscription updating, and so on. Occasion handlers are saved in a Plesk database, which suggests we have to run the following command solely on lively node.
As we beforehand have determined to think about the ha-node1 as an lively node, the following instructions ought to be executed on the ha-node1.
ha-node1# plesk bin event_handler --create -command "/bin/cp /and so on/passwd /nfs/plesk_files/and so on/passwd" -priority 50 -user root -event phys_hosting_create
ha-node1# plesk bin event_handler --create -command "/bin/cp /and so on/passwd /nfs/plesk_files/and so on/passwd" -priority 50 -user root -event phys_hosting_update
ha-node1# plesk bin event_handler --create -command "/bin/cp /and so on/passwd /nfs/plesk_files/and so on/passwd" -priority 50 -user root -event phys_hosting_delete
ha-node1# plesk bin event_handler --create -command "/bin/cp /and so on/passwd /nfs/plesk_files/and so on/passwd" -priority 50 -user root -event ftpuser_create
ha-node1# plesk bin event_handler --create -command "/bin/cp /and so on/passwd /nfs/plesk_files/and so on/passwd" -priority 50 -user root -event ftpuser_update
ha-node1# plesk bin event_handler --create -command "/bin/cp /and so on/passwd /nfs/plesk_files/and so on/passwd" -priority 50 -user root -event ftpuser_delete
ha-node1# plesk bin event_handler --create -command "/bin/cp /and so on/passwd /nfs/plesk_files/and so on/passwd" -priority 50 -user root -event site_subdomain_create
ha-node1# plesk bin event_handler --create -command "/bin/cp /and so on/passwd /nfs/plesk_files/and so on/passwd" -priority 50 -user root -event site_subdomain_update
ha-node1# plesk bin event_handler --create -command "/bin/cp /and so on/passwd /nfs/plesk_files/and so on/passwd" -priority 50 -user root -event site_subdomain_delete
ha-node1# plesk bin event_handler --create -command "/bin/cp /and so on/passwd /nfs/plesk_files/and so on/passwd" -priority 50 -user root -event site_subdomain_move


	

	
	
		    
      SHARE THIS POST