fix(compose): pass CDI device names through unchanged

[addemod]

Problem

nerdctl compose cannot start a service that requests a CDI device, although the Compose spec allows a CDI qualified name in devices:

services:
  probe:
    image: alpine
    devices:
      - vendor.com/class=name

FATA[0000] failed to parse device "vendor.com/class=name:vendor.com/class=name:rwm": "vendor.com/class=name" is not an absolute path

nerdctl run --device vendor.com/class=name works on current main, and Docker Compose starts the same project.

Cause

The service parser formats every devices entry as --device=<source>:<target>:<permissions>. compose-go fills in the target and permissions for a short entry, so a CDI name gets :vendor.com/class=name:rwm appended. nerdctl run only treats --device as a CDI device when the whole value is a qualified name, so it falls back to parsing a host path and fails.

Fix

When the source is a CDI qualified name (cdiparser.IsQualifiedName), pass it as --device=<name>. Host device entries keep the existing format.

Verification

Built from this branch and from its parent commit, and run with nerdctl compose up against a CDI spec whose device only sets an env var. Tested on containerd 2.2.1 and runc 1.3.3. The same project and spec were run through Docker Compose 5.5.0 on Docker 29.7.2 for comparison.

devices entry	unpatched	patched	Docker Compose
vendor.com/class=name	failed to parse device, container never created	ran, env from the CDI spec injected	ran, env from the CDI spec injected
/dev/null:/dev/probe	ran, /dev/probe present	ran, /dev/probe present	ran, /dev/probe present
/dev/null:/dev/probe:rw	ran, /dev/probe present	ran, /dev/probe present	ran, /dev/probe present

Test

TestParseDevices gains a CDI entry and asserts it becomes --device=vendor.com/class=name.

[AkihiroSuda]

Thanks