## Default ports

One-Shot Optimizer exposes the following ports:

| Service | Port | Purpose |
|  --- | --- | --- |
| Optimizer | 16100 | API requests from client applications |
| Optimizer | 5678 | Internal communication |
| Redis | 6379 | In-memory data store |


Port **16100** is the main entry point for One-Shot API requests (e.g. `/oneshot/api/v1/...`).

## Custom port configuration

To use a different host port, update the port mapping in the `docker-compose.yml` file. The `ports` section maps host ports to container ports in the format `host_port:container_port`.

Example: to expose the API on host port 16100, ensure a line such as:


```yaml
ports:
  - "16100:16100"
  - "5678:5678"
```

To bind the API to another host port (e.g. 18000), change the left value: `"18000:16100"`. After editing, restart the service: `docker-compose restart`.