Add basic support for OCI (Open Container Initiative) images [0] as
container templates.
An OCI image can be for example obtained from Docker Hub:
Either using Docker:
```
$ docker pull httpd
$ docker save httpd > httpd.tar
```
Or using Podman:
When using Podman, the format needs to be explicitly specified,
otherwise it defaults to docker-archive.
```
$ podman pull httpd
$ podman save --format=oci-archive httpd > httpd.tar
```
The tarball can be uploaded to a storage as a container template and
then used during container creation. It is automatically detected that
the container template is an OCI image. The resulting container still
uses the existing LXC framework.
# Dependencies:
To be able to build `proxmox-oci`, the `oci-spec` crate is required as a
dependency. A patch from Christoph [1] packages the `oci-spec` crate as
a deb package. Alternatively if the `oci-spec` crate is not yet
packaged, it can be downloaded from crates.io.
Here is a little script to download the `oci-spec` crate along with its
dependencies:
```sh
download_crate() {
CRATE_NAME=$1
CRATE_VERSION=$2
CRATE_SHA256=$3
wget https://crates.io/api/v1/crates/$CRATE_NAME/$CRATE_VERSION/download
COMPUTED_SHA256=$(sha256sum download | awk '{ print $1 }')
if [ "$COMPUTED_SHA256" != "$CRATE_SHA256" ]; then
echo "Checksum mismatch"; exit 1
fi
tar -xf download
rm download
mv $CRATE_NAME-$CRATE_VERSION /usr/share/cargo/registry/
echo "{\"package\":\"$CRATE_SHA256\",\"files\":{}}" >
/usr/share/cargo/registry/$CRATE_NAME-$CRATE_VERSION/.cargo-checksum.json
}
download_crate strsim 0.11.1
7da8b5736845d9f2fcb837ea5d9e2628564b3b043a70948a3f0b778838c5fb4f
download_crate ident_case 1.0.1
b9e0384b61958566e926dc50660321d12159025e767c18e043daf26b70104c39
download_crate darling_macro 0.20.11
fc34b93ccb385b40dc71c6fceac4b2ad23662c7eeb248cf10d529b7e055b6ead
download_crate darling_core 0.20.11
0d00b9596d185e565c2207a0b01f8bd1a135483d02d9b7b0a54b11da8d53412e
download_crate darling 0.20.11
fc7f46116c46ff9ab3eb1597a45688b6715c6e628b5c133e288e709a29bcb4ee
download_crate proc-macro-error-attr2 2.0.0
96de42df36bb9bba5542fe9f1a054b8cc87e172759a1868aa05c1f3acc89dfc5
download_crate derive_builder_core 0.20.2
2d5bcf7b024d6835cfb3d473887cd966994907effbe9227e8c8219824d06c4e8
download_crate thiserror-impl 2.0.0
22efd00f33f93fa62848a7cab956c3d38c8d43095efda1decfc2b3a5dc0b8972
download_crate rustversion 1.0.20
eded382c5f5f786b989652c49544c4877d9f015cc22e145a5ea8ea66c2921cd2
download_crate heck 0.5.0
2304e00983f87ffb38b55b444b5e3b60a884b5d30c0fca7d82fe33449bbe55ea
download_crate proc-macro-error2 2.0.1
11ec05c52be0a07b08061f7dd003e7d7092e0472bc731b4af7bb1ef876109802
download_crate derive_builder_macro 0.20.2
ab63b0e2bf4d5928aff72e83a7dace85d7bba5fe12dcc3c5a572d78caffd3f3c
download_crate thiserror 2.0.0
15291287e9bff1bc6f9ff3409ed9af665bec7a5fc8ac079ea96be07bca0e2668
download_crate strum_macros 0.27.1
c77a8c5abcaf0f9ce05d62342b7d298c346515365c36b673df4ebe3ced01fde8
download_crate strum 0.27.1
f64def088c51c9510a8579e3c5d67c65349dcf755e5479ad3d010aa6454e2c32
download_crate getset 0.1.5
f3586f256131df87204eb733da72e3d3eb4f343c639f4b7be279ac7c48baeafe
download_crate derive_builder 0.20.2
507dfb09ea8b7fa618fcf76e953f4f5e192547945816d5358edffe39f6f94947
download_crate oci-spec 0.8.1
57e9beda9d92fac7bf4904c34c83340ef1024159faee67179a04e0277523da33
```
Since librust-oci-spec-dev is in the proxmox-oci/debian/control file, a
dummy package needs to be installed, so dpkg-checkbuilddeps does not
complain.
dummy_librust_oci_spec.equivs:
```
Package: librust-oci-spec-dev
Version: 0.8.1
Provides: librust-oci-spec-0.8+default-dev (= 0.8.1-1)
```
```
$ equivs-build dummy_librust_oci_spec.equivs
$ dpkg -i ./librust-oci-spec-dev_0.8.1_all.deb
```
# Build & install order:
OCI image support:
1. proxmox
2. proxmox-perl-rs
3. pve-container
.tar container template support:
1. pve-storage
2. pve-manager
[0] https://github.com/opencontainers/image-spec/blob/main/spec.md
[1]
https://lore.proxmox.com/pve-devel/20250606103719.533030-2-c.he...@proxmox.com/
Changed since v1:
* Fix entrypoint command missing Cmd
* Set lxc.signal.halt according to StopSignal (Fixes container shutdown)
* setup: Ensure that both /etc/systemd/network and
/etc/systemd/system-preset exist before writing files into them.
* ui: storage upload: accept *.tar files as vztmpl
* proxmox-perl-rs: rebase on latest master (3d9806cb3c7f)
* proxmox-perl-rs: add new dependencies to debian/control
* proxmox-oci: refactor errors and use `thiserror` to avoid boilerplate
proxmox:
Filip Schauer (1):
add proxmox-oci crate
Cargo.toml | 1 +
proxmox-oci/Cargo.toml | 22 ++++
proxmox-oci/debian/changelog | 5 +
proxmox-oci/debian/control | 47 ++++++++
proxmox-oci/debian/debcargo.toml | 7 ++
proxmox-oci/src/lib.rs | 196 +++++++++++++++++++++++++++++++
proxmox-oci/src/oci_tar_image.rs | 167 ++++++++++++++++++++++++++
7 files changed, 445 insertions(+)
create mode 100644 proxmox-oci/Cargo.toml
create mode 100644 proxmox-oci/debian/changelog
create mode 100644 proxmox-oci/debian/control
create mode 100644 proxmox-oci/debian/debcargo.toml
create mode 100644 proxmox-oci/src/lib.rs
create mode 100644 proxmox-oci/src/oci_tar_image.rs
proxmox-perl-rs:
Filip Schauer (1):
add Perl mapping for OCI container image parser/extractor
pve-rs/Cargo.toml | 2 ++
pve-rs/Makefile | 1 +
pve-rs/debian/control | 2 ++
pve-rs/src/lib.rs | 1 +
pve-rs/src/oci.rs | 20 ++++++++++++++++++++
5 files changed, 26 insertions(+)
create mode 100644 pve-rs/src/oci.rs
pve-container:
Filip Schauer (7):
config: whitelist lxc.init.cwd
add support for OCI images as container templates
config: add entrypoint parameter
configure static IP in LXC config for custom entrypoint
setup: debian: create /etc/network path if missing
setup: recursively mkdir /etc/systemd/{network,system-preset}
manage DHCP for containers with custom entrypoint
src/PVE/API2/LXC.pm | 64 +++++++++++++++++++++++++--
src/PVE/LXC.pm | 88 ++++++++++++++++++++++++++++++++++---
src/PVE/LXC/Config.pm | 19 +++++++-
src/PVE/LXC/Setup/Base.pm | 3 +-
src/PVE/LXC/Setup/Debian.pm | 1 +
5 files changed, 165 insertions(+), 10 deletions(-)
pve-storage:
Filip Schauer (1):
allow .tar container templates
src/PVE/Storage.pm | 2 +-
src/PVE/Storage/Plugin.pm | 2 +-
2 files changed, 2 insertions(+), 2 deletions(-)
pve-manager:
Filip Schauer (1):
ui: storage upload: accept *.tar files as vztmpl
www/manager6/window/UploadToStorage.js | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
Summary over all repositories:
20 files changed, 639 insertions(+), 13 deletions(-)
--
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