Updated from 4.0.0 RC2 to 4.0.0 and opencloud does not start anymore. user: unknown userid 1500

[Blacks-Army]

Describe the bug

Updated from 4.0.0 rc 2 to 4.0.0 and opencloud does not start anymore.

I'm getting this

opencloud                | {"level":"error","service":"opencloud","event":"opencloud: Failed service 'service.SutureService{exec:(func(context.Context) error)(0x55563e0cbc00)}' (4.999906 failures of 5.000000), restarting: true, error: failed to create resource: error detecting resource: user: unknown userid 1500","service":"service.SutureService{exec:(func(context.Context) error)(0x55563e0cbc00)}","supervisor":"opencloud","restarting":true,"failures":4.999905501470762,"threshold":5,"error":{},"time":"2025-12-01T19:22:41Z","line":"github.com/opencloud-eu/opencloud/opencloud/pkg/runtime/service/service.go:400","message":"service terminated"}
opencloud                | {"level":"warn","service":"opencloud","event":"opencloud: Entering the backoff state.","supervisor":"opencloud","time":"2025-12-01T19:22:41Z","line":"github.com/opencloud-eu/opencloud/opencloud/pkg/runtime/service/service.go:402","message":"service backoff"}
opencloud                | {"level":"fatal","service":"opencloud","event":"opencloud: Failed service 'service.SutureService{exec:(func(context.Context) error)(0x55563e0cbc00)}' (5.999864 failures of 5.000000), restarting: false, error: failed to create resource: error detecting resource: user: unknown userid 1500","service":"service.SutureService{exec:(func(context.Context) error)(0x55563e0cbc00)}","supervisor":"opencloud","restarting":false,"failures":5.999863786871946,"threshold":5,"error":{},"time":"2025-12-01T19:22:41Z","line":"github.com/opencloud-eu/opencloud/opencloud/pkg/runtime/service/service.go:400","message":"service terminated"}
opencloud exited with code 1
opencloud_collaboration  | failed to create resource: error detecting resource: user: unknown userid 1500
opencloud_collaboration exited with code 1

Steps to reproduce

1. Update from RC2 to 4.0.0 and add missing config values
2. See logs

Expected behavior

Upgrade Successfully

Actual behavior

Does not start anymore anf gives me errors

Setup

I am using a custom docker compose config with user: 1500:1500

Additional context

Did not happen on RC2

[micbar]

There was a change in the compose project opencloud-eu/opencloud-compose#157

Maybe that is interfering with your setup?

[stavros-k]

It appears that opencloud does not start if the UID does not exist as a username?

[Blacks-Army]

There was a change in the compose project opencloud-eu/opencloud-compose#157

Maybe that is interfering with your setup?

No I don't think so I am setting the User directive to 1500:1500 and it worked before.

[Blacks-Army]

It appears that opencloud does not start if the UID does not exist as a username?

That is also my assumption

[stavros-k]

It appears to originate from here: #1918

Specifically

opencloud/pkg/tracing/tracing.go

Line 110 in 986545d

resource.WithProcess(),

This option is equivalent to calling WithProcessPID, WithProcessExecutableName, WithProcessExecutablePath, WithProcessCommandArgs, WithProcessOwner, WithProcessRuntimeName, WithProcessRuntimeVersion, and WithProcessRuntimeDescription. See each option function for information about what resource attributes each includes.

WithProcessOwner eventually calls LookupID, which will return an error in go (https://github.com/golang/go/blob/67851547d88dbe6d7ea3aa09dcc5fa5ba94696ed/src/os/user/lookup_unix.go#L181).

[micbar]

Ok. thanks for the analysis. Then this is a regression.

[micbar]

@butonic @dragotin This needs a backport and patch release.

[JGeek00]

Same on my case, i paste here my logs in case it helps you.

2025-12-02 12:59:23.729868+00:00{"level":"error","service":"opencloud","event":"opencloud: Failed service 'service.SutureService{exec:(func(context.Context) error)(0x55f66ab7bc00)}' (1.000000 failures of 5.000000), restarting: true, error: failed to create resource: error detecting resource: user: unknown userid 3002","service":"service.SutureService{exec:(func(context.Context) error)(0x55f66ab7bc00)}","supervisor":"opencloud","restarting":true,"failures":1,"threshold":5,"error":{},"time":"2025-12-02T12:59:23Z","line":"github.com/opencloud-eu/opencloud/opencloud/pkg/runtime/service/service.go:400","message":"service terminated"}
2025-12-02 12:59:23.730873+00:00{"level":"error","service":"opencloud","event":"opencloud: Failed service 'service.SutureService{exec:(func(context.Context) error)(0x55f66ab7bc00)}' (1.999973 failures of 5.000000), restarting: true, error: failed to create resource: error detecting resource: user: unknown userid 3002","service":"service.SutureService{exec:(func(context.Context) error)(0x55f66ab7bc00)}","supervisor":"opencloud","restarting":true,"failures":1.9999731997078734,"threshold":5,"error":{},"time":"2025-12-02T12:59:23Z","line":"github.com/opencloud-eu/opencloud/opencloud/pkg/runtime/service/service.go:400","message":"service terminated"}
2025-12-02 12:59:23.731610+00:00{"level":"error","service":"opencloud","event":"opencloud: Failed service 'service.SutureService{exec:(func(context.Context) error)(0x55f66ab7bc00)}' (2.999927 failures of 5.000000), restarting: true, error: failed to create resource: error detecting resource: user: unknown userid 3002","service":"service.SutureService{exec:(func(context.Context) error)(0x55f66ab7bc00)}","supervisor":"opencloud","restarting":true,"failures":2.9999270698799427,"threshold":5,"error":{},"time":"2025-12-02T12:59:23Z","line":"github.com/opencloud-eu/opencloud/opencloud/pkg/runtime/service/service.go:400","message":"service terminated"}
2025-12-02 12:59:23.732177+00:00{"level":"error","service":"opencloud","event":"opencloud: Failed service 'service.SutureService{exec:(func(context.Context) error)(0x55f66ab7bc00)}' (3.999883 failures of 5.000000), restarting: true, error: failed to create resource: error detecting resource: user: unknown userid 3002","service":"service.SutureService{exec:(func(context.Context) error)(0x55f66ab7bc00)}","supervisor":"opencloud","restarting":true,"failures":3.9998832106460944,"threshold":5,"error":{},"time":"2025-12-02T12:59:23Z","line":"github.com/opencloud-eu/opencloud/opencloud/pkg/runtime/service/service.go:400","message":"service terminated"}
2025-12-02 12:59:23.732654+00:00{"level":"error","service":"opencloud","event":"opencloud: Failed service 'service.SutureService{exec:(func(context.Context) error)(0x55f66ab7bc00)}' (4.999837 failures of 5.000000), restarting: true, error: failed to create resource: error detecting resource: user: unknown userid 3002","service":"service.SutureService{exec:(func(context.Context) error)(0x55f66ab7bc00)}","supervisor":"opencloud","restarting":true,"failures":4.999837495673635,"threshold":5,"error":{},"time":"2025-12-02T12:59:23Z","line":"github.com/opencloud-eu/opencloud/opencloud/pkg/runtime/service/service.go:400","message":"service terminated"}
2025-12-02 12:59:23.732963+00:00{"level":"warn","service":"opencloud","event":"opencloud: Entering the backoff state.","supervisor":"opencloud","time":"2025-12-02T12:59:23Z","line":"github.com/opencloud-eu/opencloud/opencloud/pkg/runtime/service/service.go:402","message":"service backoff"}