> For the complete documentation index, see [llms.txt](https://docs.facephi.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.facephi.com/docs.facephi-en/sdks/backend-sdk/selphid/installation/installation_instructions_service.md).

# Service installation and deployment

## 1. Introduction

The service is containerized, and there is a docker image in a Facephi repository.

```bash
docker login facephicorp.jfrog.io
user: username
pass: Token
```

```bash
docker pull facephicorp.jfrog.io/docker-pro-fphi/facephi-selphid-sdk:#VERSION#
```

Where `#VERSION#` is the specific version number you want to download (e.g. `6.21.0`).

{% hint style="warning" %}
**Important** Starting with version 6.15.0, the Selphid-sdk Docker is offered in three variants.

* `facephi-selphid-sdk:#VERSION#`: Full service, as before.
* `facephi-selphid-sdk:facial-#VERSION#`: Facial extraction service, 1:1 and 1:N authentication.
* `facephi-selphid-sdk:liveness-#VERSION#`: Passive liveness service. The three variants are deployed in the same way, and the endpoints are consumed in the same way. The difference is that the variants **facial** and **liveness** do not respond to all endpoints, only to those related to their functionality.
  {% endhint %}

## 2. docker-compose

One way to deploy the service is to create a file `docker-compose.yml` with the following content, modifying the value of the variables as needed.

```yaml
version: '3.7'

services:
  selphid-service:
    ports:
      - "8080:8080"
    volumes:
      -  /home/user/selphid/config:/app/selphid-sdk/config
    image: facephicorp.jfrog.io/docker-pro-fphi/facephi-selphid-sdk:#VERSION#
    container_name: facephi-selphid-sdk
```

First, you must create a user directory with read and write permissions, for example `/home/user/selphid/config`, and place these two files:

* The License file `license.lic` (required).
* The service configuration file `config.json` (optional).

{% hint style="info" %}
In the same directory, the service will write the log files.
{% endhint %}

Run the following command, inside the folder where the file is located `docker-compose.yml`, to deploy the service:

```
docker compose up
```

## 3. Additional configuration

Following the steps in **section 2**, the service is ready to start. If you need to create additional volumes for the different types of assets, you can follow these additional configurations.

### 3.1 License

You can mount an additional volume and define the environment variable `LICENSE_PATH`, if you want to install the license outside the usual configuration directory.

```yaml
version: '3.7'

services:
  selphid-service:
    ports:
      - "8080:8080"
    volumes:
      -  /home/user/selphi/config:/app/selphid-sdk/config
      -  /home/user/license:/app/selphid-sdk/license
    image: facephicorp.jfrog.io/docker-pro-fphi/facephi-selphid-sdk:#VERSION#
    environment:
      LICENSE_PATH: /app/selphid-sdk/license
    container_name: facephi-selphid-sdk
```

{% hint style="info" %}
`LICENSE_PATH` is a folder with the `license.lic` and read/write permissions. In this example, `/home/user/license/license.lic`.
{% endhint %}

### 3.2 Service

If you need to configure the service, you must provide a file `config.json`, as described in the **section 2**. If you want to place this file in an additional volume:

```yaml
version: '3.7'

services:
  selphid-service:
    ports:
      - "8080:8080"
    volumes:
      -  /home/user/selphi/config:/app/selphid-sdk/config
      -  /home/user/service:/app/selphid-sdk/service
    image: facephicorp.jfrog.io/docker-pro-fphi/facephi-selphid-sdk:#VERSION#
    environment:
      CONFIG_FILE: /app/selphid-sdk/service/config.json
    container_name: facephi-selphid-sdk
```

{% hint style="info" %}
`CONFIG_FILE` is the path to the configuration file in the additional volume.
{% endhint %}

If no `config.json`, is specified, these default values will be used:

```json
{
    "port": 8080,                   # Service port number.
    "number_of_threads": 0,         # The number of IO threads, 0 = the number of CPU cores.
    "connection_timeout": 0,        # The lifetime of the connection without read or write.
    "keep_alive_request_number": 0, # Set the maximum number of requests that can be served through one keep-alive connection.
                                    # After the maximum number of requests are made, the connection is closed.
                                    # The default value of 0 means no limit.
    "client_max_body_size": 100,    # The maximum size of the body allowed in the requests in Mb.
                                    # The default value of 100 Mb.
    "logger_path" : "./logs",       # Set the path to store log files.
    "logger_level" : "info",        # Possible values are [trace|debug|info|warning|error|critical|off].
    "logger_rotation" : "daily",    # Possible values are [hourly|daily].
    "logger_max_files" : 0,         # The default value of 0 means no limit.
    "auth_enabled" : false,
    "auth_jwt_secret" : "",
    "auth_accept_authorization_header" : true,
    "auth_accept_api_key_header" : true,
    "auth_api_key_header_name" : "x-api-key"
}
```

JWT authentication is optional and disabled by default. When enabled, `GET /api/v1/selphid/health` and `GET /api/v1/selphid/version` remain public, while the rest of the endpoints require a valid HS256 JWT with an exp claim `exp` not expired.

Starting with version 6.19.0, these environment variables are added, allowing you to set the values of `config.json`:

```
FACEPHI_SELPHID_REST_PORT=8080
FACEPHI_SELPHID_REST_NUMBER_OF_THREADS=2
FACEPHI_SELPHID_REST_CONNECTION_TIMEOUT=100
FACEPHI_SELPHID_REST_KEEP_ALIVE_REQUEST_NUMBER=0
FACEPHI_SELPHID_REST_CLIENT_MAX_BODY_SIZE=100
FACEPHI_SELPHID_REST_LOGGER_PATH=./logs
FACEPHI_SELPHID_REST_LOGGER_FILE_PREFIX=prefix
FACEPHI_SELPHID_REST_LOGGER_LEVEL=info
FACEPHI_SELPHID_REST_LOGGER_ROTATION=daily
FACEPHI_SELPHID_REST_LOGGER_MAX_FILES=0
FACEPHI_SELPHID_REST_AUTH_ENABLED=false
FACEPHI_SELPHID_REST_AUTH_JWT_SECRET=shared-secret
FACEPHI_SELPHID_REST_AUTH_ACCEPT_AUTHORIZATION_HEADER=true
FACEPHI_SELPHID_REST_AUTH_ACCEPT_API_KEY_HEADER=true
FACEPHI_SELPHID_REST_AUTH_API_KEY_HEADER_NAME=x-api-key
```

The JWT authentication configuration parameters can only be set at startup:

* Set them in `config.json` or in the environment variables `FACEPHI_SELPHID_REST_AUTH_*` before the service starts.
* `GET /api/v1/selphid/config` never returns those JWT authentication keys.
* `POST /api/v1/selphid/config` rejects those keys and cannot be used to modify them at runtime.

### 3.3 Debug and usage path

Finally, you can specify a specific volume/path with read and write permissions for the SDK's Debug information and the SDK's usage data, using the environment variables `DEBUG_PATH` and `USAGE_PATH`:

```yaml
version: '3.7'

services:
  selphid-service:
    ports:
      - "8080:8080"
    volumes:
      -  /home/user/selphi/config:/app/selphid-sdk/config
      -  /home/user/debug:/app/selphid-sdk/debug
      -  /home/user/usage:/app/selphid-sdk/usage
    image: facephicorp.jfrog.io/docker-pro-fphi/facephi-selphid-sdk:#VERSION#
    environment:
      DEBUG_PATH: /app/selphid-sdk/debug
      USAGE_PATH: /app/selphid-sdk/usage
    container_name: facephi-selphid-sdk
```