Metrics generation error for microservice

[zigarn]

The bug

When calling the metrics endpoint on microservices, instead of metrics we get

# failed to export metrics: Error: MetricReader is not bound to a MetricProducer

The OS that Immich Server is running on

Ubuntu 24.04

Version of Immich Server

v1.105.1

Version of Immich Mobile App

N/A

Platform with the issue

• Server
• Web
• Mobile

Your docker-compose.yml content

# Immich provided one + this compose.override.yml

services:
  immich-server:
    volumes:
      - ${EXTERNAL_PATH}:/usr/src/app/external:ro
    ports: !override
      - 127.0.0.1:2283:3001
      - 127.0.0.1:2284:8081

  immich-microservices:
    volumes:
      - ${EXTERNAL_PATH}:/usr/src/app/external:ro
    ports:
      - 127.0.0.1:2285:8081

networks:
  default:
    enable_ipv6: true
    ipam:
      config:
        - subnet: 2001:0db8::/112

Your .env content

# Immich provided one +

# Custom
###################################################################################
# External library path
EXTERNAL_PATH=/home/user/Images/Photos

# Connection secret for postgres
DB_PASSWORD='...'

# Monitoring
IMMICH_METRICS=true

Reproduction steps

1. `curl http://localhost:2285/metrics`
2. Get no metrics but error message

Relevant log output

Nothing about metrics in the logs

Additional information

Metrics endpoint for server is OK.

[zigarn]

I think it's related to #9169

[michelheusschen]

Can confirm that metrics are not working on v1.105.1, as far as I can tell it's caused by #9426

[bo0tzz]

cc @zackpollard @mertalev

[roschaefer]

The microservices service is gone from the docker-compose.yml after #9551.

I was able to reproduce this on main just by following the documentation.

Here is the commit to reproduce it: roschaefer@7128923

[zackpollard]

I'm taking a quick look into a fix for this to see if we can get it in before the next release