Alpine Linux variant: Not enough file descriptors to handle queues

[Architect-unix-Boursorama]

Version: 3.13.7-management-alpine (amd64)
sha256:c691b282f98d62beea4b1fb293c8b12c76208a489c3656c234c8a865043e8249 (latest for the tag as of 2024-12-19)
System: Linux 6.1.0-28-amd64 #1 SMP PREEMPT_DYNAMIC Debian 6.1.119-1 (2024-11-22) x86_64 GNU/Linux
Observed behavior: The number of file descriptors is limited to 1024

Expected behavior: The number of file descriptors corresponds to the limits defined by the docker daemon and/or the system

Details:
The number of file descriptors is limited to 1024 even though the process runs with the same limits as the system (2^20 file descriptors).
At server start, the following warning appears.

2024-12-19 16:06:07.000718+01:00 [warning] <0.254.0> Recovering 1603 queues, available file handles: 927. Please increase max open file handles limit to at least 1603!

The boot process doesn't finish (I interrupted it after more than an hour) and the service doesn't become available.

I have tried setting ulimit manually beforehand, and also tried defining the ulimits directly in the docker daemon config files to no avail.

Resolution attemps:
I have another cluster using the same 3.13.7-management-alpine (amd64) version. However, it was deployed earlier, the digest differs (sha256:a4c3e1b9ec43fddb486e3560d4dea0ac1d520d789b3fa22646850d05bd9c0e1f) and the problem does not occur
The problem does not occur when going back to version 3.13.6-management-alpine (sha256:611107e29cce05c2acd968325d5dcbde7e2fee404970f1ead75fdb22be2821b3)

[lukebakken]

@Architect-unix-Boursorama - see this discussion for my analysis: #749 (comment)

This will be resolved by #751.

For now, the workaround is to use 3.13.6, or the Ubuntu 3.13.7 image.