Thanks centos2 .... but regarding your example, I cannot see where you configure that this services needs to be stopped before anyone else....
On 22/12/20, 15:22, "CentOS on behalf of centos2@xxxxxxxxxxxxxx" <centos-bounces@xxxxxxxxxx on behalf of centos2@xxxxxxxxxxxxxx> wrote:
Hi,
On Tue, Dec 22, 2020, at 06:51, Carlos Lopez wrote:
> I am trying to configure a script as a systemd service to run first when a shutdown or reboot is called. This script execute some scp commands to copy some files to other machines. My actual defined systemd’s file is:
>
> [Unit]
> Description=Remote copy some files before reboot/shutdown
> Before=poweroff.target halt.target shutdown.target reboot.target
> DefaultDependencies=no
>
> [Service]
> Type=simple
> ExecStart=/bin/true
> ExecStop=/usr/local/bin/remote_copy
> RemainAfterExit=yes
>
> [Install]
> WantedBy=multi-user.target
>
> But it doesn’t work. “remote_copy” is working when it is executed from root shell. I am using CentOS-8 fully patched release.
>
> Any idea what am I doing wrong?
I don't have a CentOS 8 machine to test on but on a CentOS 7.9, this works for me:
/etc/systemd/system/shutdown-test.service
------------------------------------------------------
[Unit]
Description=Remote copy some files before reboot/shutdown
[Service]
Type=oneshot
ExecStart=/bin/true
ExecStop=/usr/local/bin/remote_copy
RemainAfterExit=true
[Install]
WantedBy=multi-user.target
------------------------------------------------------
the mode and contents of remote_copy:
-rwxr-xr-x 1 root root 44 Dec 22 08:23 /usr/local/bin/remote_copy
------------------------------------------------------
#!/bin/bash
date >> /tmp/remote_copy_result
------------------------------------------------------
After enabling the service and rebooting, I get a file in /tmp/remote_copy_result that contains the date.
My success is attributable not to me but to this post:
https://unix.stackexchange.com/questions/39226/how-to-run-a-script-with-systemd-right-before-shutdown
Your unit file seems similar but when I used it, it didn't work on my CentOS 7.9 system either.
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