Re: [pbs-devel] [PATCH proxmox-backup] docs: notifications: add section about how to use custom templates

["Alexander Zeidler" <a.zeidler@proxmox.com>]

On Wed Apr 9, 2025 at 10:11 AM CEST, Lukas Wagner wrote:
> This section is meant to give a basic overview on how to use
> custom templates for notifications. It will be expanded in the
> future, providing a more detailed view on how templates are resolved,
> existing fallback mechanisms, available templates, template
> variables and helpers.
>
> Signed-off-by: Lukas Wagner <l.wagner@proxmox.com>

Reviewed-by: Alexander Zeidler <a.zeidler@proxmox.com>

> ---
>  docs/notifications.rst | 22 ++++++++++++++++++++++
>  1 file changed, 22 insertions(+)
>
> diff --git a/docs/notifications.rst b/docs/notifications.rst
> index 34fc0128..7cd4d229 100644
> --- a/docs/notifications.rst
> +++ b/docs/notifications.rst
> @@ -362,3 +362,25 @@ type via the ``notify`` option.
>  
>  The ``notify-user`` and ``notify`` options are ignored if ``notification-mode``
>  is set to ``notification-system``.
> +
> +Overriding Notification Templates
> +---------------------------------
> +
> +Proxmox Backup Server uses Handlebars templates to render notifications. 
> +The original templates provided by Proxmox Backup Server are stored in
> +``/usr/share/proxmox-backup/templates/default/``.
> +
> +Notification templates can be overridden by providing a custom template
> +file in the override directory at 
> +``/etc/proxmox-backup/notification-templates/default/``.
> +When rendering a notification of a given type, Proxmox Backup Server
> +will first attempt to load a template from the override directory.
> +If this one does not exist or fails to render, the original template
> +will be used.
> +
> +The template files follow the naming convention of
> +``<type>-<body|subject>.txt.hbs``. For instance, the file
> +``gc-err-body.txt.hbs`` contains the template for rendering notifications
> +for garbage collection errors, while ``package-updates-subject.txt.hbs``
> +is used to render the subject line of notifications for available package
> +updates.



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