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Container runtime is reported unhealthy when `docker --version` takes longer than 2 seconds

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@danegsta ci sta già lavorando.

Dal 22/10/2026.

  • #311 di @danegsta — aperta

Valutazione

Difficoltà
4/5
Tempo stimato
3-5 giorni
Idoneità per principianti
25/100
Tipo di issue
Bug
Chiarezza
Abbastanza chiara
Stato di attività
Attiva
Stack tecnologico
docker, go
Ambito
backend, devops

Direzione di ricerca

Start with dockerVersionCommandTimeout in internal/docker/cli_orchestrator.go, where the 2-second limit on docker --version is applied, then follow how a timeout turns into Running: false. The RuntimeUnhealthy transition is in controllers/container_controller.go, and the NetworkReconciler retry is the log line to match. The issue does not settle the fix, since the options are still open in microsoft/aspire#19570, so agree the intended behaviour with maintainers first. Done means a timeout no longer marks the runtime unhealthy under the agreed rule, with tests covering the slow-command case.

Scritto dal modello di indicizzazione a partire dal testo della issue.

Descrizione

DCP considers the container runtime unhealthy when docker --version does not finish within 2 seconds (dockerVersionCommandTimeout in internal/docker/cli_orchestrator.go, unchanged on main). A container that is reconciled in that window goes to RuntimeUnhealthy (controllers/container_controller.go). @flojon analyzed this, with a deterministic reproduction, in microsoft/aspire#19570. I found no issue for it in this repository, so this adds the DCP side and data from another platform.

Environment: GitHub-hosted macOS Intel runner (4 vCPU), Docker engine in a Lima/QEMU VM, DCP 0.26.5 (Aspire 13.6.1).

Observed (logs)

  • The DCP debug logs of 25 CI sessions contain 714 runs of docker --version: median 0.06 s, 95th percentile 0.64 s, 3 over 2 s (maximum 2.37 s).

  • One session (passed) shows the sequence:

    15:47:56.318 Running Docker command ... docker --version
15:47:56.951 Process started successfully                (0.63 s after the command was issued)
15:47:58.321 Context expired, stopping process...        (the 2 s limit)
15:47:59.752 NetworkReconciler: Container runtime is not healthy, retrying reconciliation later...

  • In 3 of the 25 sessions DCP logged "Container runtime is not healthy", each time for the container network, which DCP retried (the tests passed). In none of them did a container reach RuntimeUnhealthy.

  • In two earlier CI runs of one sample (no DCP log was captured), a container went from Starting to RuntimeUnhealthy after 0.2 s and 1.8 s, and everything that waited for it failed immediately.

Assumed (not shown)

  • That those two failures were caused by this check. The signature matches, but I do not know which command failed.
  • That the three slow calls belong to the three sessions where the runtime was reported unhealthy; I did not match them.

Suggestion

One of the options already listed in microsoft/aspire#19570, for example treating a --version timeout as "version unknown" instead of "not running", or retrying once before reporting Running: false.

Lingua principale
Go
Stelle
192
Fork
27
Merge medio
2g 8h
PR unite (30g)
20

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