> +sub systemd_managed {
> +
> +    my $version;
> +    my $outfunc = sub {
> +     my $line = shift;
> +
> +     if ($line =~ m/ceph version (\d+).\d+.\d+/) {
> +         $version = $1;
> +     }
> +    };
> +
> +    run_command(['/usr/bin/ceph', '--version'], outfunc => $outfunc);

Isn't there an simpler test for that? I do not want 
to run external command for such test.

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