From: Lukas Wagner <l.wagner@proxmox.com>
To: Gabriel Goller <g.goller@proxmox.com>, pve-devel@lists.proxmox.com
Subject: Re: [pve-devel] [PATCH v2] log: add perlmod logger
Date: Thu, 5 Dec 2024 13:42:59 +0100 [thread overview]
Message-ID: <a02a2bdb-2632-4448-9c68-4dca4a6b6e2e@proxmox.com> (raw)
In-Reply-To: <20241205102348.216706-2-g.goller@proxmox.com>
On 2024-12-05 11:23, Gabriel Goller wrote:
> Add special logger for perlmod. This one will print everything to
> stderr (which will end up in the tasklog) and the errors to journald.
>
> Reported-by: Maximiliano Sandoval <m.sandoval@proxmox.com>
> Reported-by: Lukas Wagner <l.wagner@proxmox.com>
> Signed-off-by: Gabriel Goller <g.goller@proxmox.com>
> ---
>
> v2:
> - nothing changed
>
> proxmox-log/src/lib.rs | 35 +++++++++++++++++++++++++++++++++++
> 1 file changed, 35 insertions(+)
>
> diff --git a/proxmox-log/src/lib.rs b/proxmox-log/src/lib.rs
> index 8c74e42b618d..5713c094e981 100644
> --- a/proxmox-log/src/lib.rs
> +++ b/proxmox-log/src/lib.rs
> @@ -191,3 +191,38 @@ pub fn init_cli_logger(
> LogTracer::init_with_filter(log_level.as_log())?;
> Ok(())
> }
> +
> +/// Initialize logger for perlmod
> +///
> +/// This logger will log everything to stderr (which will land in the tasklog)
> +/// and the errors to syslog as well.
> +pub fn init_perlmod_logger(
> + env_var_name: &str,
> + default_log_level: LevelFilter,
> +) -> Result<(), anyhow::Error> {
> + let mut log_level = default_log_level;
> + if let Ok(v) = env::var(env_var_name) {
> + match v.parse::<LevelFilter>() {
> + Ok(l) => {
> + log_level = l;
> + }
> + Err(e) => {
> + eprintln!("env variable {env_var_name} found, but parsing failed: {e:?}");
> + }
> + }
> + }
> +
> + let registry = tracing_subscriber::registry()
> + .with(
> + tracing_journald::layer().ok()
> + .with_filter(filter_fn(|metadata| {
> + *metadata.level() == Level::ERROR
> + }))
> + .with_filter(log_level),
> + )
> + .with(plain_stderr_layer().with_filter(log_level));
> +
> + tracing::subscriber::set_global_default(registry)?;
> + LogTracer::init_with_filter(log_level.as_log())?;
> + Ok(())
> +}
Minor nit: repo in the subject prefix is missing, also the order of patches should probably reversed.
Seems to work fine, now messages logged by proxmox-notify while being in task context show up
in the task logs again. Only downside to this approach is that we now also log to stderr
in regular daemon (non-task) context? I don't think this is an issue tho?
Small (visual) improvement would be to log the severity as well, similar to the rest of the task logs.
E.g.
INFO: notified via ...
ERROR: could not notify via ...
At the moment the prefix is not there, which is inconsistent to the other messages in the task log.
Consider this:
Tested-by: Lukas Wagner <l.wagner@proxmox.com>
--
- Lukas
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next prev parent reply other threads:[~2024-12-05 12:43 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-12-05 10:23 [pve-devel] [PATCH v2] log: change default output to stderr and only log errors to journald Gabriel Goller
2024-12-05 10:23 ` [pve-devel] [PATCH v2] log: add perlmod logger Gabriel Goller
2024-12-05 12:42 ` Lukas Wagner [this message]
2024-12-05 13:17 ` Gabriel Goller
2024-12-05 13:37 ` Lukas Wagner
2024-12-05 14:23 ` Gabriel Goller
2024-12-05 15:06 ` [pve-devel] [PATCH v2] log: change default output to stderr and only log errors to journald Gabriel Goller
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