Docker Engine Debian 13 rootless¶

Native Debian 13 docker.io package with rootless Docker daemon for isolated compatibility tests

Image: ghcr.io/strukturpiloten/docker-debian-13-rootless
Declared image version: v1.0.0
Family: Docker Engine
Architecture: amd64, arm64
Inner mode: rootless

Declared runtime base: docker.io/library/debian:13@sha256:9cc080028c43b27d2074d63a5f9caf7166d731494965616c1a6d2827a004585c

Image source and metadata · GHCR package · Detailed guide

Choose and inspect¶

The distribution selects the installed engine package at build time. Inspect the published image's component manifest or SBOM for its exact revision.

Declared tags: v1.0.0, v1.0, v1, main, latest. These are publication policy aliases, not proof that any tag exists in GHCR. Even the exact SemVer tag can move after a reviewed rebuild.

Registry status: observed; checked at 2026-09-28T10:16:09.518715+00:00.

Observed latest index digest: sha256:c3cdb5da99ec99ad864ff9f2908c9ffead4d0dabfb46422fdbe85f20e2fe0054.

Pull the observed immutable artifact:

podman pull ghcr.io/strukturpiloten/docker-debian-13-rootless@sha256:c3cdb5da99ec99ad864ff9f2908c9ffead4d0dabfb46422fdbe85f20e2fe0054

For an isolated Linux nested-Docker test, the outer Podman boundary runs rootfully and privileged. Use a trusted runner and keep its image store separate from other tests:

sudo podman run --rm --detach --name nested-docker --privileged --device /dev/fuse --security-opt label=disable ghcr.io/strukturpiloten/docker-debian-13-rootless@sha256:c3cdb5da99ec99ad864ff9f2908c9ffead4d0dabfb46422fdbe85f20e2fe0054
ready=0
for attempt in $(seq 1 30); do
  if sudo podman exec nested-docker docker info >/dev/null 2>&1; then ready=1; break; fi
  sleep 2
done
if [ "$ready" -eq 1 ]; then sudo podman exec nested-docker docker info; else sudo podman logs nested-docker; fi
sudo podman stop nested-docker
test "$ready" -eq 1

This fixture does not use the host Docker socket. Read the detailed guide for nested workloads.

Support and runtime contract¶

Lifecycle: maintained; admission: isolated-test; review after: 2026-10-27.

Vendor package revisions can advance with repository updates; image shares runner kernel and host security policy.

Declared runtime profiles: docker. Declared test settings are in the metadata source. Admission is policy, not evidence of a passed test.

Declared runtime test contract:

{
  "docker": {
    "mode": "rootless",
    "nestedRuntime": true,
    "outerPrivilege": "privileged"
  }
}

Registry aliases and history¶

Aliases resolved to the observed current digest: latest, main, v1, v1.0, v1.0.0.

Listed without digest resolution: run-36346260768-1-sha-0b136a13a8bb612d91960ae5d07e72f449c89ec1, sha-0b136a13a8bb612d91960ae5d07e72f449c89ec1, sha256-0d383de3de318f77831fe46dde60aafdfba76e03479e1a2b44f76f21f18b3e40, sha256-ba0b2982717c770ad064284828a9f6b008c611955abb7110a4378a9f858d5b2f, sha256-c3cdb5da99ec99ad864ff9f2908c9ffead4d0dabfb46422fdbe85f20e2fe0054.

Evidence and timestamps¶

Matching release asset verified the build record and per-architecture runtime and scan evidence. Signature and provenance remain unverified in this snapshot.

Maintenance release · Evidence asset

GitHub package activity can include signatures and attestations; it does not identify when the current runnable image was published. A registry observation is a point-in-time check; mutable tags may move afterward. Use the immutable digest and maintenance evidence for an audit.