From: Wolfgang Bumiller <w.bumiller@proxmox.com>
To: Filip Schauer <f.schauer@proxmox.com>
Cc: pve-devel@lists.proxmox.com
Subject: Re: [pve-devel] [PATCH proxmox-perl-rs v2 02/11] add Perl mapping for OCI container image parser/extractor
Date: Wed, 25 Jun 2025 10:10:11 +0200 [thread overview]
Message-ID: <h5rgbhdugye4qghfreomy4bui356jrgxmt25v2y5hjivvt4f3g@wvhnumowjmzi> (raw)
In-Reply-To: <a740a724-6a2c-48ed-b632-f674c19c4831@proxmox.com>
On Wed, Jun 25, 2025 at 09:59:08AM +0200, Filip Schauer wrote:
> On 24/06/2025 14:51, Wolfgang Bumiller wrote:
> > > + #[export]
> > > + pub fn parse_and_extract_image(
> > > + oci_tar_path: &str,
> > > + rootfs_path: &str,
> > > + ) -> Result<Option<Config>, Error> {
> > > + match proxmox_oci::parse_and_extract_image(oci_tar_path, rootfs_path) {
> > > + Ok(config) => Ok(Some(config.unwrap_or_default())),
> > > + Err(err) => match err {
> > > + ProxmoxOciError::ParseError(ParseError::NotAnOciImage(_)) => Ok(None),
> > ^ Why are we doing this?
>
> In the Perl code of the create_vm API method at PVE::API2::LXC, if a
> .tar file is used as the container template,
> PVE::RS::OCI::parse_and_extract_image is first attempted.
> It returns undef, when the .tar file is not an OCI image. Thus we deduce
> that the file is an LXC template. If some other kind of error occurrs,
> (e.g. I/O error) then the Perl code should die.
>
> The point is, there needs to be a way to differentiate between the file
> actually being an LXC template, and some general failure.
Given how the errors in the oci-spec work I think it would make more
sense to do this detection separately by simply looking for an
`oci-layout` file in the archive (or looking for all of `oci-layout`,
`blobs`, `index.json` at only the top level).
An an error in the OCI data should not cause us to try to extract this
as a regular container either.
In the long run, this needs to be a separate content type anyway, since
don't want to just extract tar files like this. Rather, we want to later
also add the ability to use the base image via overlayfs.
_______________________________________________
pve-devel mailing list
pve-devel@lists.proxmox.com
https://lists.proxmox.com/cgi-bin/mailman/listinfo/pve-devel
next prev parent reply other threads:[~2025-06-25 8:09 UTC|newest]
Thread overview: 29+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-06-11 14:48 [pve-devel] [PATCH container/manager/proxmox{, -perl-rs}/storage v2 00/11] support OCI images as container templates Filip Schauer
2025-06-11 14:48 ` [pve-devel] [PATCH proxmox v2 01/11] add proxmox-oci crate Filip Schauer
2025-06-24 12:42 ` Wolfgang Bumiller
2025-06-25 8:13 ` Wolfgang Bumiller
2025-06-11 14:48 ` [pve-devel] [PATCH proxmox-perl-rs v2 02/11] add Perl mapping for OCI container image parser/extractor Filip Schauer
2025-06-24 12:51 ` Wolfgang Bumiller
2025-06-25 7:59 ` Filip Schauer
2025-06-25 8:10 ` Wolfgang Bumiller [this message]
2025-06-11 14:48 ` [pve-devel] [PATCH container v2 03/11] config: whitelist lxc.init.cwd Filip Schauer
2025-06-25 9:00 ` [pve-devel] applied: " Wolfgang Bumiller
2025-06-11 14:48 ` [pve-devel] [PATCH container v2 04/11] add support for OCI images as container templates Filip Schauer
2025-06-11 14:48 ` [pve-devel] [PATCH container v2 05/11] config: add entrypoint parameter Filip Schauer
2025-06-11 14:48 ` [pve-devel] [PATCH container v2 06/11] configure static IP in LXC config for custom entrypoint Filip Schauer
2025-06-25 8:26 ` Wolfgang Bumiller
2025-06-25 8:30 ` Wolfgang Bumiller
2025-06-25 8:52 ` Stefan Hanreich
2025-07-09 12:45 ` Filip Schauer
2025-06-11 14:48 ` [pve-devel] [PATCH container v2 07/11] setup: debian: create /etc/network path if missing Filip Schauer
2025-06-11 14:49 ` [pve-devel] [PATCH container v2 08/11] setup: recursively mkdir /etc/systemd/{network, system-preset} Filip Schauer
2025-06-11 14:49 ` [pve-devel] [PATCH container v2 09/11] manage DHCP for containers with custom entrypoint Filip Schauer
2025-06-25 8:50 ` Wolfgang Bumiller
2025-07-09 12:43 ` Filip Schauer
2025-07-09 13:00 ` Wolfgang Bumiller
2025-06-11 14:49 ` [pve-devel] [PATCH storage v2 10/11] allow .tar container templates Filip Schauer
2025-06-24 13:11 ` Wolfgang Bumiller
2025-06-11 14:49 ` [pve-devel] [PATCH manager v2 11/11] ui: storage upload: accept *.tar files as vztmpl Filip Schauer
2025-06-17 8:01 ` [pve-devel] [PATCH container/manager/proxmox{, -perl-rs}/storage v2 00/11] support OCI images as container templates Christoph Heiss
2025-07-09 12:50 ` Filip Schauer
2025-07-09 12:40 ` [pve-devel] superseded: " Filip Schauer
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=h5rgbhdugye4qghfreomy4bui356jrgxmt25v2y5hjivvt4f3g@wvhnumowjmzi \
--to=w.bumiller@proxmox.com \
--cc=f.schauer@proxmox.com \
--cc=pve-devel@lists.proxmox.com \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.