Send notifications via SSH to another desktop / notify-send (and more)

[robincee]

Looking at the code & docs at https://offen.github.io/docker-volume-backup/how-tos/set-up-notifications.html and https://containrrr.dev/shoutrrr/v0.8/ i figured: Would it be an idea to implement support for notify-send over SSH? eg:

ssh user@host 'DISPLAY=:0 notify-send "Backup Success!"'

Could be something like this inside the compose.yml:

NOTIFICATION_SSH=ssh://user@host:port/?display=0&fromHost=example.com

Thank you folks for a great piece of work!

[m90]

I think it wouldn't make sense for this tool to add an additional way of sending notifications through other means than the library used, shoutrrr, so if a channel like notify-send is currently not supported by shoutrrr, the way to go would be to request its addition (or add it yourself) there and once merged, bump the library version here (which happens quite regularly, e.g. #212, #447)

[m90]

In the meantime, you could probably also implement something similar using custom commands, as for example described here #159

[robincee]

Thank you for the information! Apologies: i discovered shoutrrr right after i posted this. Already figured the same. I'll do one better: i got working code now in Go (just started with Golang due to this lol, but looks doable), working on a patch for DVB, so i can patch my local version until / when / if ever shoutrrr accepts a (future) pr after i get into that code and figure out how to implement it there (lots to learn!) And i hope shoutrrr will accept it, cause SSH is 'something else'. + Totally understand what your are saying, fully agreed. TBC!

For now a simple bit like this seems to work great with openssh added via the Dockerfile.

    if s.c.SSHNotificationUrl != "" && s.c.SSHNotificationString != "" {
        cmd := exec.Command("ssh", fmt.Sprintf("%s", s.c.SSHNotificationUrl), fmt.Sprintf("%s", s.c.SSHNotificationString)+" 'Backups FAILED.'")
        cmd.Run()
    }

Thanks again!

[m90]

You wouldn't even need to patch the code for the image but could put the command you exec in a copy-post command on your backup container. See #159 and #297