Why is the first login to OpenPanel slow - and panel actions in general?

stefan

A user submitted a ticket regarding performance issues on a VPS with 3GB RAM and 2 CPU cores. They reported that the auto-login from OpenAdmin to OpenPanel is slow, and that other actions within the panel also feel sluggish.

By default, the user panel is limited to 1 CPU core and 1GB RAM, but these limits can be adjusted if needed:

From terminal: edit /root/.env (default configuration file: GitHub link)
From OpenAdmin: navigate to Settings > Service Limits (demo link)

Another thing to keep in mind is that services auto-start when needed. This means:

The first time opening Databases can be slow, as MySQL must initialize.
The first time adding a domain can be slow, as PHP and the webserver must start.
All subsequent actions are instant once services are running.

Docs: Auto-start services

Administrators can speed this up by pre-starting the services for a user, either from:

OpenAdmin: Users > *username* > Services
Terminal: cd $USERNAME && docker --context=$USERNAME compose up -d php-fpm-8.2 apache mysql

stefan

To automate this, you can create a post hook that will execute after creating new account and download docker images:

Make hooks directory

    mkdir -p /etc/openpanel/openpanel/hooks/

Create a new file:

    nano /etc/openpanel/openpanel/hooks/post_user-add

and inside paste:

    #!/bin/bash

    username="$1"

    if [[ -z "$username" ]]; then
        echo "Usage: $0 <username>"
        exit 1
    fi
     cd /home/$username && docker --context=$username compose pull php-fpm-8.4 mariadb nginx

That's it, now those images are already accessible to user when they navigate OpenPanel UI and initial actions will be performed much faster.

pcx3

from some ~ 1.6.X update this is already added automatically, it will now pull images for the default php version, mysql server and webserver