Some plugins and themes have dependencies. ALL dependencies must be installed in the product template site – your theme/plugin will not be able to download them for each individual site because the shared plugins & themes folder will be read-only.
For example, a Kadence theme might need to install plugins to support some of their functionality. This needs to be installed on the Product Template site.
Some plugins and themes make assumptions as to the absolute location of dependent files. They will not work in a multi-tenant environment since the plugins and themes folders are no longer under the wp-content folder.
While plugins that make assumptions are few and far between, a notable example is the BREAKDANCE page builder – tenant sites will not work when this plugin is used.
When cloning sites to the same server (standard clones), the Multi-tenant attributes are cloned but with some modifications:
In some cases you might need to change the site type after the clone operation. For example, you might be cloning the Template site to use as the start of a new template. In this case you will want to remove the ‘mt_template_clone‘ designation. You can do this in TOOLS section of the MULTI-TENANT tab.
When pushing sites to another server, the Multi-tenant attributes are cloned but with some modifications:
In some cases you might need to change the site type after the clone operation. For example, you might be cloning the Template site to use as the foundation for a new template. In this case you will want to remove the ‘mt_template_clone‘ designation. You can do this in TOOLS section of the MULTI-TENANT tab.
We mentioned in our Introduction to Multi-tenant that we symlink individual plugin and theme folders instead of the wp-content/plugins and wp-content/themes folders.
We do this because it allows an admin the flexibility to add plugins that are specific to a customer – by uploading them to the wp-content/plugins or wp-content/themes folder for a site.
However, for this to work, the plugin/theme has to be uploaded via sFTP – you cannot use the PLUGINS/THEMES screen to upload them. The wp-content/plugins and wp-content/themes folders are protected by default against uploads from wp-admin.
After uploading, you might also need to login via sFTP and change the permissions of the newly uploaded plugin/theme folder.
Finally, updates to those plugins/themes will need to be handled via sFTP as well (unless you change their permissions).
One limitation of the default behavior of WPCD Multi-tenant is that the database servers have to be on the same server as the web server.
To use remote databases you will need to utilize our professional services folks to make the change. This is one reason why the Multi-tenant module is only available as part of a professional services contract.
Among other things, remote database servers need proper user permissions configured to allow our scripts to create new databases on the server (each tenant has it’s own database). And, of course, we’ll need to configure our own multi-tenant scripts and such to use the remote server instead of the local servers.
After a while you will not be using older versions of templates. We recommend that you DISABLE these old versions using the ENABLE/DISABLE option under the MISC tab.
Tenant sites cannot be converted to Multisite.
If you want to see where a link points to, you can run the following command:
su <linuxuser> -c 'readlink -v "<symlink-file>"'
For example, if you want to see where the akismet.php file really points to for domain mydomain.com, you can use:
su <linuxuser> -c 'readlink -v "/var/www/mydomain.com/html/wp-content/plugins/akismet/akismet.php"'
Of course, replace <linuxuser> with a valid Linux user!