From: "Fabian Grünbichler" <f.gruenbichler@proxmox.com>
To: Proxmox VE development discussion <pve-devel@lists.proxmox.com>
Subject: Re: [pve-devel] [PATCH manager] pveproxy: create log directory when starting
Date: Wed, 16 Apr 2025 10:23:55 +0200 [thread overview]
Message-ID: <1744791375.g77jk7f9f3.astroid@yuna.none> (raw)
In-Reply-To: <20250415093802.158334-1-m.sandoval@proxmox.com>
On April 15, 2025 11:38 am, Maximiliano Sandoval wrote:
> We only create this directory while installing the package. If a user
> deletes /var/log then they will lose access to the web UI.
until the reinstall or upgrade the package?
> Signed-off-by: Maximiliano Sandoval <m.sandoval@proxmox.com>
> ---
> bin/pveproxy | 18 +++++++++++++++---
> 1 file changed, 15 insertions(+), 3 deletions(-)
>
> diff --git a/bin/pveproxy b/bin/pveproxy
> index 20e8f2ab2..1090df039 100755
> --- a/bin/pveproxy
> +++ b/bin/pveproxy
> @@ -19,12 +19,24 @@ $SIG{'__WARN__'} = sub {
> $@ = $err;
> };
>
> +sub chown_to_www_data {
> + my ($dir) = @_;
> +
> + my $gid = getgrnam('www-data') || die "getgrnam failed - $!\n";
> + my $uid = getpwnam('www-data') || die "getpwnam failed - $!\n";
> +
> + chown($uid, $gid, $dir);
> +}
the thing that only works as root is the chown, not all of this..
> +
> my $prepare = sub {
> my $rundir="/var/run/pveproxy";
> + my $logdir = '/var/log/pveproxy';
> +
but anyway, it would be much easier to read and have better semantics if
we switch to
if root {
my $uid = ..
my $gid = ..
mkdir(..)
chown(..) || warn ...
mkdir(..)
chown(..) || warn ...
}
which has the added benefit of resetting the ownership to the right
value on reboot/service start, so fixes another potential issue (at the
cost of two unconditional syscalls).
> if (mkdir($rundir, 0700)) { # only works at first start if we are root)
> - my $gid = getgrnam('www-data') || die "getgrnam failed - $!\n";
> - my $uid = getpwnam('www-data') || die "getpwnam failed - $!\n";
> - chown($uid, $gid, $rundir);
> + chown_to_www_data($rundir);
> + }
> + if (mkdir($logdir, 0700)) {
> + chown_to_www_data($logdir);
> }
> };
>
> --
> 2.39.5
>
>
>
> _______________________________________________
> pve-devel mailing list
> pve-devel@lists.proxmox.com
> https://lists.proxmox.com/cgi-bin/mailman/listinfo/pve-devel
>
>
>
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next prev parent reply other threads:[~2025-04-16 8:24 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-04-15 9:38 Maximiliano Sandoval
2025-04-16 8:23 ` Fabian Grünbichler [this message]
2025-04-16 9:21 ` Maximiliano Sandoval
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