Re: [BackupPC-users] Sending output of DumpPreUserCmd by email

You need DumpPreUserCmd to run to completion before continuing with the backup. Using systemd will run the command in the background (I believe even for oneshot), which is almost certainly not what you want to do.

An easier solution is to write a cover script (pick you favorite scripting language - bash, python, perl etc) that runs mysqldump, emails whatever you want etc, and then point DumpPreUserCmd at your script.

Craig

On Thu, May 18, 2017 at 8:30 AM, Richard Shaw <hobbes1069 AT gmail DOT com> wrote:

On Thu, May 18, 2017 at 9:49 AM, Vladislav Kurz <vladislav.kurz AT webstep DOT net> wrote:
Hello all,

First of all big thanks to all developers of BackupPC, it is really a
very nice and useful backup tool.

I use DumpPreUserCmd (and similar options) to run mysqldump, or make
snapshots of filesystems before backup. I would like to have the output
of these mailed to me instead of being just logged.

Probably not the direction you were thinking but why not create a systemd service file for DumpPreUserCmd to start?

I'm assuming you're using a system which uses systemd...

If you prepend the command in the service file with a hyphen the unit will exit cleanly even if the command failed...

ExecStart=-/command/to/run

Then you would set your DumpPreUserCmd to "/usr/bin/systemctl start <unit>"

You would want to set the unit type to "oneshot" so it doesn't return until the command is finished.

Just a thought.

Thanks,
Richard

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