Hi, for a local deployment with docker you can try the following:

1. Create a user-defined bridge network:
   docker network create -o "com.docker.network.bridge.enable_icc=true" -o "com.docker.network.driver.mtu=1500" -o "com.docker.network.bridge.enable_ip_masquerade=true" cvat-local-bridge

2. Update the CVAT docker-compose.dev.yml file with these lines:

[...]

networks:
  cvat:
    name: cvat-local-bridge
    external: true

And restart the containers with docker compose -f docker-compose.yml -f docker-compose.dev.yml up -d.

3. You can deploy the other service you're developing on the localhost or in a container. If deploying in a container, make sure to join the container to this new network (either manually with docker network connect cvat-local-bridge <yourcontainer> or automatically in docker-compose the same way as for CVAT). Note that the localhost is also visible in this network, so you can reach it if needed. The gateway ip (for localhost) can be found in the docker network inspect cvat-local-bridge "IPAM" section (another way is to use ip addr show dev br-<network id from 'docker network ls'>).

The commands above are for linux, so windows deployments can have some differences. Please do not use this approach in production deployments.

SMOKESCREEN_OPTS needs to be set to a Smokescreen option (EDIT: or list of options), not just an IP address. For example, SMOKESCREEN_OPTS=--allow-address=123.45.67.89.

You can find the list of available options in the Smokescreen README: https://github.com/stripe/smokescreen/blob/master/README.md.

SMOKESCREEN_OPTS needs to be set to a Smokescreen option (EDIT: or list of options), not just an IP address. For example, SMOKESCREEN_OPTS=--allow-address=123.45.67.89.

You can find the list of available options in the Smokescreen README: https://github.com/stripe/smokescreen/blob/master/README.md.

Thanks for your help everyone, @SpecLad solution works perfectly <3

Hello!
I'm facing the same problem. The only difference is that I am using fastapi in a docker container. Can you tell me what other settings I need to look at?
My docker-compose.yml:

version: '2.3'
services:
  cvat_wh:
    image: cvat_wh
    container_name: cvat_wh
    build:
      context: .
      dockerfile: Dockerfile
      network: "host"
    ports:
      - 8001:8001
    restart: always

When running CVAT, I also do an export, but with the port specified:
export SMOKESCREEN_OPTS=--allow-address={IP}:8001
Additionally, I checked that my server on fasapi is running. When accessed from the system, the server returns code 200.

@DenisN03, have you tried the advice about using a user-defined network in docker compose? It's possible that CVAT server can't reach your application from the docker container.

Merged everything into user-defined network. Tried with fastapi ip 0.0.0.0.0 and 127.0.0.1, but the problem remains. What ip should I specify for the fastapi server?

@DenisN03, you can find the container ip by calling docker container inspect <your_container> | jq '.[0]["NetworkSettings"]["Networks"]'. You'll also need to add this ip into the smokescreen params. The fastapi server itself can serve at 0.0.0.0.

I got it! Thank you very much for your help!