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joyrex2001 / kubedock

Kubedock is a minimal implementation of the docker api that will orchestrate containers on a Kubernetes cluster, rather than running containers locally.
MIT License
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Is `/images/load` API endpoint supported? #44

Closed jeremysprofile closed 1 year ago

jeremysprofile commented 1 year ago

We are trying to use kubedock with Testcontainers for Java. I set it up and was able to connect, but we get 404s when trying to call the Docker API endpoint /images/load, and from the logs below and grepping through kubedock, it looks like that endpoint isn't implemented.

I read the kubedock docs, where it says

Kubedock implements the images API by tracking which images are requested. It is not able to actually build images.

But I couldn't find anything about whether or not kubedock is expected to be able to load already-built images, or if it is only able to refer to images stored in some Docker registry. Can you please confirm if this is a bug or user error that I am experiencing, or if this is expected behavior and a purposeful limitation of kubedock to keep it lightweight?

Logs:

I0804 18:10:25.899934       1 main.go:28] kubedock 0.11.0 (20230524-112404)
I0804 18:10:25.900722       1 main.go:105] kubernetes config: namespace=jenkins-ci, initimage=joyrex2001/kubedock:0.11.0, ready timeout=1m0s
I0804 18:10:25.901321       1 main.go:129] reaper started with max container age 1h0m0s
[GIN-debug] [WARNING] Running in "debug" mode. Switch to "release" mode in production.
 - using env:   export GIN_MODE=release
 - using code:  gin.SetMode(gin.ReleaseMode)

I0804 18:10:25.901646       1 main.go:102] default image pull policy: ifnotpresent
I0804 18:10:25.901718       1 main.go:105] service account used in deployments: default
I0804 18:10:25.901782       1 main.go:107] using namespace: jenkins-ci
[GIN-debug] GET    /info                     --> github.com/joyrex2001/kubedock/internal/server/routes.RegisterDockerRoutes.func2 (6 handlers)
[GIN-debug] GET    /events                   --> github.com/joyrex2001/kubedock/internal/server/routes.RegisterDockerRoutes.func3 (6 handlers)
[GIN-debug] GET    /version                  --> github.com/joyrex2001/kubedock/internal/server/routes.RegisterDockerRoutes.func4 (6 handlers)
[GIN-debug] GET    /_ping                    --> github.com/joyrex2001/kubedock/internal/server/routes.RegisterDockerRoutes.func5 (6 handlers)
[GIN-debug] HEAD   /_ping                    --> github.com/joyrex2001/kubedock/internal/server/routes.RegisterDockerRoutes.func6 (6 handlers)
[GIN-debug] POST   /containers/create        --> github.com/joyrex2001/kubedock/internal/server/routes.RegisterDockerRoutes.func7 (6 handlers)
[GIN-debug] POST   /containers/:id/start     --> github.com/joyrex2001/kubedock/internal/server/routes.RegisterDockerRoutes.func8 (6 handlers)
[GIN-debug] POST   /containers/:id/attach    --> github.com/joyrex2001/kubedock/internal/server/routes.RegisterDockerRoutes.func9 (6 handlers)
[GIN-debug] POST   /containers/:id/stop      --> github.com/joyrex2001/kubedock/internal/server/routes.RegisterDockerRoutes.func10 (6 handlers)
[GIN-debug] POST   /containers/:id/restart   --> github.com/joyrex2001/kubedock/internal/server/routes.RegisterDockerRoutes.func11 (6 handlers)
[GIN-debug] POST   /containers/:id/kill      --> github.com/joyrex2001/kubedock/internal/server/routes.RegisterDockerRoutes.func12 (6 handlers)
[GIN-debug] POST   /containers/:id/wait      --> github.com/joyrex2001/kubedock/internal/server/routes.RegisterDockerRoutes.func13 (6 handlers)
[GIN-debug] POST   /containers/:id/rename    --> github.com/joyrex2001/kubedock/internal/server/routes.RegisterDockerRoutes.func14 (6 handlers)
[GIN-debug] POST   /containers/:id/resize    --> github.com/joyrex2001/kubedock/internal/server/routes.RegisterDockerRoutes.func15 (6 handlers)
[GIN-debug] DELETE /containers/:id           --> github.com/joyrex2001/kubedock/internal/server/routes.RegisterDockerRoutes.func16 (6 handlers)
[GIN-debug] GET    /containers/json          --> github.com/joyrex2001/kubedock/internal/server/routes.RegisterDockerRoutes.func17 (6 handlers)
[GIN-debug] GET    /containers/:id/json      --> github.com/joyrex2001/kubedock/internal/server/routes.RegisterDockerRoutes.func18 (6 handlers)
[GIN-debug] GET    /containers/:id/logs      --> github.com/joyrex2001/kubedock/internal/server/routes.RegisterDockerRoutes.func19 (6 handlers)
[GIN-debug] HEAD   /containers/:id/archive   --> github.com/joyrex2001/kubedock/internal/server/routes.RegisterDockerRoutes.func20 (6 handlers)
[GIN-debug] GET    /containers/:id/archive   --> github.com/joyrex2001/kubedock/internal/server/routes.RegisterDockerRoutes.func21 (6 handlers)
[GIN-debug] PUT    /containers/:id/archive   --> github.com/joyrex2001/kubedock/internal/server/routes.RegisterDockerRoutes.func22 (6 handlers)
[GIN-debug] POST   /containers/:id/exec      --> github.com/joyrex2001/kubedock/internal/server/routes.RegisterDockerRoutes.func23 (6 handlers)
[GIN-debug] POST   /exec/:id/start           --> github.com/joyrex2001/kubedock/internal/server/routes.RegisterDockerRoutes.func24 (6 handlers)
[GIN-debug] GET    /exec/:id/json            --> github.com/joyrex2001/kubedock/internal/server/routes.RegisterDockerRoutes.func25 (6 handlers)
[GIN-debug] POST   /networks/create          --> github.com/joyrex2001/kubedock/internal/server/routes.RegisterDockerRoutes.func26 (6 handlers)
[GIN-debug] POST   /networks/:id/connect     --> github.com/joyrex2001/kubedock/internal/server/routes.RegisterDockerRoutes.func27 (6 handlers)
[GIN-debug] POST   /networks/:id/disconnect  --> github.com/joyrex2001/kubedock/internal/server/routes.RegisterDockerRoutes.func28 (6 handlers)
[GIN-debug] GET    /networks                 --> github.com/joyrex2001/kubedock/internal/server/routes.RegisterDockerRoutes.func29 (6 handlers)
[GIN-debug] GET    /networks/:id             --> github.com/joyrex2001/kubedock/internal/server/routes.RegisterDockerRoutes.func30 (6 handlers)
[GIN-debug] DELETE /networks/:id             --> github.com/joyrex2001/kubedock/internal/server/routes.RegisterDockerRoutes.func31 (6 handlers)
[GIN-debug] POST   /networks/prune           --> github.com/joyrex2001/kubedock/internal/server/routes.RegisterDockerRoutes.func32 (6 handlers)
[GIN-debug] POST   /images/create            --> github.com/joyrex2001/kubedock/internal/server/routes.RegisterDockerRoutes.func33 (6 handlers)
[GIN-debug] GET    /images/json              --> github.com/joyrex2001/kubedock/internal/server/routes.RegisterDockerRoutes.func34 (6 handlers)
[GIN-debug] GET    /images/:image/*json      --> github.com/joyrex2001/kubedock/internal/server/routes.RegisterDockerRoutes.func35 (6 handlers)
[GIN-debug] GET    /containers/:id/top       --> github.com/joyrex2001/kubedock/internal/server/httputil.NotImplemented (6 handlers)
[GIN-debug] GET    /containers/:id/changes   --> github.com/joyrex2001/kubedock/internal/server/httputil.NotImplemented (6 handlers)
[GIN-debug] GET    /containers/:id/export    --> github.com/joyrex2001/kubedock/internal/server/httputil.NotImplemented (6 handlers)
[GIN-debug] GET    /containers/:id/stats     --> github.com/joyrex2001/kubedock/internal/server/httputil.NotImplemented (6 handlers)
[GIN-debug] POST   /containers/:id/update    --> github.com/joyrex2001/kubedock/internal/server/httputil.NotImplemented (6 handlers)
[GIN-debug] POST   /containers/:id/pause     --> github.com/joyrex2001/kubedock/internal/server/httputil.NotImplemented (6 handlers)
[GIN-debug] POST   /containers/:id/unpause   --> github.com/joyrex2001/kubedock/internal/server/httputil.NotImplemented (6 handlers)
[GIN-debug] GET    /containers/:id/attach/ws --> github.com/joyrex2001/kubedock/internal/server/httputil.NotImplemented (6 handlers)
[GIN-debug] POST   /containers/prune         --> github.com/joyrex2001/kubedock/internal/server/httputil.NotImplemented (6 handlers)
[GIN-debug] POST   /build                    --> github.com/joyrex2001/kubedock/internal/server/httputil.NotImplemented (6 handlers)
[GIN-debug] GET    /volumes                  --> github.com/joyrex2001/kubedock/internal/server/httputil.NotImplemented (6 handlers)
[GIN-debug] GET    /volumes/:id              --> github.com/joyrex2001/kubedock/internal/server/httputil.NotImplemented (6 handlers)
[GIN-debug] DELETE /volumes/:id              --> github.com/joyrex2001/kubedock/internal/server/httputil.NotImplemented (6 handlers)
[GIN-debug] POST   /volumes/create           --> github.com/joyrex2001/kubedock/internal/server/httputil.NotImplemented (6 handlers)
[GIN-debug] POST   /volumes/prune            --> github.com/joyrex2001/kubedock/internal/server/httputil.NotImplemented (6 handlers)
[GIN-debug] GET    /libpod/version           --> github.com/joyrex2001/kubedock/internal/server/routes.RegisterLibpodRoutes.func2 (7 handlers)
[GIN-debug] GET    /libpod/_ping             --> github.com/joyrex2001/kubedock/internal/server/routes.RegisterLibpodRoutes.func3 (7 handlers)
[GIN-debug] HEAD   /libpod/_ping             --> github.com/joyrex2001/kubedock/internal/server/routes.RegisterLibpodRoutes.func4 (7 handlers)
[GIN-debug] POST   /libpod/containers/create --> github.com/joyrex2001/kubedock/internal/server/routes.RegisterLibpodRoutes.func5 (7 handlers)
[GIN-debug] POST   /libpod/containers/:id/start --> github.com/joyrex2001/kubedock/internal/server/routes.RegisterLibpodRoutes.func6 (7 handlers)
[GIN-debug] GET    /libpod/containers/:id/exists --> github.com/joyrex2001/kubedock/internal/server/routes.RegisterLibpodRoutes.func7 (7 handlers)
[GIN-debug] POST   /libpod/containers/:id/attach --> github.com/joyrex2001/kubedock/internal/server/routes.RegisterLibpodRoutes.func8 (7 handlers)
[GIN-debug] POST   /libpod/containers/:id/stop --> github.com/joyrex2001/kubedock/internal/server/routes.RegisterLibpodRoutes.func9 (7 handlers)
[GIN-debug] POST   /libpod/containers/:id/restart --> github.com/joyrex2001/kubedock/internal/server/routes.RegisterLibpodRoutes.func10 (7 handlers)
[GIN-debug] POST   /libpod/containers/:id/kill --> github.com/joyrex2001/kubedock/internal/server/routes.RegisterLibpodRoutes.func11 (7 handlers)
[GIN-debug] POST   /libpod/containers/:id/wait --> github.com/joyrex2001/kubedock/internal/server/routes.RegisterLibpodRoutes.func12 (7 handlers)
[GIN-debug] POST   /libpod/containers/:id/rename --> github.com/joyrex2001/kubedock/internal/server/routes.RegisterLibpodRoutes.func13 (7 handlers)
[GIN-debug] POST   /libpod/containers/:id/resize --> github.com/joyrex2001/kubedock/internal/server/routes.RegisterLibpodRoutes.func14 (7 handlers)
[GIN-debug] DELETE /libpod/containers/:id    --> github.com/joyrex2001/kubedock/internal/server/routes.RegisterLibpodRoutes.func15 (7 handlers)
[GIN-debug] GET    /libpod/containers/json   --> github.com/joyrex2001/kubedock/internal/server/routes.RegisterLibpodRoutes.func16 (7 handlers)
[GIN-debug] GET    /libpod/containers/:id/json --> github.com/joyrex2001/kubedock/internal/server/routes.RegisterLibpodRoutes.func17 (7 handlers)
[GIN-debug] GET    /libpod/containers/:id/logs --> github.com/joyrex2001/kubedock/internal/server/routes.RegisterLibpodRoutes.func18 (7 handlers)
[GIN-debug] HEAD   /libpod/containers/:id/archive --> github.com/joyrex2001/kubedock/internal/server/routes.RegisterLibpodRoutes.func19 (7 handlers)
[GIN-debug] GET    /libpod/containers/:id/archive --> github.com/joyrex2001/kubedock/internal/server/routes.RegisterLibpodRoutes.func20 (7 handlers)
[GIN-debug] PUT    /libpod/containers/:id/archive --> github.com/joyrex2001/kubedock/internal/server/routes.RegisterLibpodRoutes.func21 (7 handlers)
[GIN-debug] POST   /libpod/containers/:id/exec --> github.com/joyrex2001/kubedock/internal/server/routes.RegisterLibpodRoutes.func22 (7 handlers)
[GIN-debug] POST   /libpod/exec/:id/start    --> github.com/joyrex2001/kubedock/internal/server/routes.RegisterLibpodRoutes.func23 (7 handlers)
[GIN-debug] GET    /libpod/exec/:id/json     --> github.com/joyrex2001/kubedock/internal/server/routes.RegisterLibpodRoutes.func24 (7 handlers)
[GIN-debug] POST   /libpod/images/pull       --> github.com/joyrex2001/kubedock/internal/server/routes.RegisterLibpodRoutes.func25 (7 handlers)
[GIN-debug] GET    /libpod/images/json       --> github.com/joyrex2001/kubedock/internal/server/routes.RegisterLibpodRoutes.func26 (7 handlers)
[GIN-debug] GET    /libpod/images/:image/*json --> github.com/joyrex2001/kubedock/internal/server/routes.RegisterLibpodRoutes.func27 (7 handlers)
[GIN-debug] GET    /libpod/info              --> github.com/joyrex2001/kubedock/internal/server/httputil.NotImplemented (7 handlers)
[GIN-debug] POST   /libpod/images/build      --> github.com/joyrex2001/kubedock/internal/server/httputil.NotImplemented (7 handlers)
I0804 18:10:25.902290       1 main.go:37] api server started listening on :2475
[GIN-debug] Listening and serving HTTP on :2475
[GIN] 2023/08/04 - 18:10:36 | 200 |      26.191µs |       127.0.0.1 | HEAD     "/_ping"
[GIN] 2023/08/04 - 18:10:53 | 404 | 16.815218898s |       127.0.0.1 | POST     "/images/load?quiet=1"
[GIN] 2023/08/04 - 18:10:53 | 200 |       16.67µs |       127.0.0.1 | HEAD     "/_ping"
joyrex2001 commented 1 year ago

Correct, at this point kubedock is not able to load existing images. These images need to be loaded in a registry that is available to kubernetes instead.