Docker Engine Fedora 43 rootless¶

Native Fedora 43 moby-engine package with rootless Docker daemon for isolated compatibility tests

Image: ghcr.io/strukturpiloten/docker-fedora-43-rootless
Declared image version: v1.0.0
Family: Docker Engine
Architecture: amd64, arm64
Inner mode: rootless

Declared runtime base: registry.fedoraproject.org/fedora:43@sha256:a0615357ebdfac87a5249c3b4280c08c48bd46bc992683a559a6905ebfce91a2

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 2026-09-28T10:16:13.615563+00:00.

Observed latest index digest: sha256:2623c148d1bd2110f017401d9937d79228f99cc0d96552adef5b8afddcc36490.

Pull the observed immutable artifact:

podman pull ghcr.io/strukturpiloten/docker-fedora-43-rootless@sha256:2623c148d1bd2110f017401d9937d79228f99cc0d96552adef5b8afddcc36490

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-fedora-43-rootless@sha256:2623c148d1bd2110f017401d9937d79228f99cc0d96552adef5b8afddcc36490
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, run-36401422287-1-sha-1983e53aa68e4f0f445bdb9c2cce47a875c05a30, sha-0b136a13a8bb612d91960ae5d07e72f449c89ec1, sha-1983e53aa68e4f0f445bdb9c2cce47a875c05a30, sha256-075684fc778951c9de1b6ce485d4138ed753736489d1f5a8d062bef124cb5671, sha256-2623c148d1bd2110f017401d9937d79228f99cc0d96552adef5b8afddcc36490, sha256-51e62c137bbcaacf22b0512b5f18ef4a9691ddb2b0ebce7bf134756bef83424e, sha256-58cbb494a843cfc73c8af8bd0b9daee6932e3bbf326a4051da657bdf3fb3d452, sha256-a9513eac549348fa386b134fd0e1cb1c7b397d511f4c292eccb57c0cde349368, sha256-abba28853eb5c3d5418ffe7ad8693d98bb83f62d5650d77c9906994808c4a88c.

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.