Opik Guardrails Backend

This is the backend service for Opik Guardrails.

Running with Docker

Prerequisites

To run the Opik Guardrails Backend with Docker, you need to have Docker installed on your system. In addition, to use GPU acceleration, you need to have the NVIDIA Container Toolkit installed.

Running the Backend

Option 1: Build locally (only needed once)

bash

cd apps/opik-guardrails-backend
docker build -t opik-guardrails-backend:latest .

Option 2: Run the image

With GPU support

bash

docker run -p 5000:5000 --gpus all opik-guardrails-backend:latest

Without GPU (CPU only)

bash

docker run -p 5000:5000 opik-guardrails-backend:latest

The server will be available at http://localhost:5000

GPU Support

The Opik Guardrails Backend is configured to automatically detect and use NVIDIA GPUs if available. The container uses NVIDIA CUDA 12.1.1 with cuDNN 8 on Ubuntu 22.04 as its base image.

Environment Variables

You can configure GPU usage with the following environment variables:

OPIK_GUARDRAILS_DEVICE: Specifies the device to use for model inference. Default is cuda:0 if GPU is available, otherwise falls back to cpu.
CUDA_VISIBLE_DEVICES: Controls which GPUs are visible to the container (https://docs.nvidia.com/deploy/topics/topic_5_2_1.html).

Example with custom device configuration:

bash

docker run -p 5000:5000 --gpus all -e OPIK_GUARDRAILS_DEVICE=cuda:1 opik-guardrails-backend:latest

Automatic Fallback

The service will automatically detect if CUDA is available at startup. If no GPU is available or the NVIDIA Container Toolkit is not properly configured, it will fall back to CPU mode without requiring any configuration changes.

API Endpoints

Validation

This endpoint allows you to perform multiple validations on the same text in a single request.

bash

curl -X POST http://localhost:5000/api/validate \
  -H "Content-Type: application/json" \
  -d '{
    "text": "This text is about artificial intelligence. My name is John Doe and my email is [email protected].",
    "validations": [
      {
        "type": "TOPIC",
        "config": {
          "topics": ["politics", "religion", "artificial intelligence"],
          "threshold": 0.5,
          "mode": "restrict"
        }
      },
      {
        "type": "PII",
        "config": {
          "entities": ["PERSON", "EMAIL_ADDRESS"],
          "language": "en",
          "threshold": 0.5
        }
      }
    ]
  }'

Parameters:

text: The text to validate (required)
validations: Array of validation instructions (required)
- Each validation requires:
  - type: Type of validation to perform (TOPIC or PII)
  - config: Configuration specific to the validation type
    - For TOPIC type: A TopicValidationConfig object with parameters:
      - topics: Array of topics to check against (required)
      - threshold: Confidence threshold for topic detection (default: 0.5)
      - mode: Mode for topic matching, either "restrict" or "allow" (required)
        
        restrict: Validation passes if NONE of the topics match (used for content filtering)
        
        allow: Validation passes if at least one of the topics matches (used for content classification)
    - For PII type: A PIIValidationConfig object with parameters:
      - entities: Array of specific entity types to detect (if not provided, all supported entity types will be detected). Default entities include: "IP_ADDRESS", "PHONE_NUMBER", "PERSON", "MEDICAL_LICENSE", "URL", "EMAIL_ADDRESS", "IBAN_CODE". Supported entities can be found here: https://microsoft.github.io/presidio/supported_entities/
      - language: Language of the text (default: "en")
      - threshold: Confidence threshold for PII detection (default: 0.5)

Example response:

json

{
  "validation_passed": false,
  "validations": [
    {
      "validation_passed": false,
      "type": "TOPIC",
      "validation_config": {
        "topics": ["politics", "religion", "artificial intelligence"],
        "threshold": 0.5,
        "mode": "restrict"
      },
      "validation_details": {
        "matched_topics_scores": {
          "artificial intelligence": 0.85
        },
        "scores": {
          "politics": 0.12,
          "religion": 0.05,
          "artificial intelligence": 0.85
        }
      }
    },
    {
      "validation_passed": false,
      "type": "PII",
      "validation_config": {
        "entities": ["PERSON", "EMAIL_ADDRESS"],
        "language": "en",
        "threshold": 0.5
      },
      "validation_details": {
        "detected_entities": {
          "PERSON": [
            {
              "start": 51,
              "end": 59,
              "score": 0.85,
              "text": "John Doe"
            }
          ],
          "EMAIL_ADDRESS": [
            {
              "start": 73,
              "end": 92,
              "score": 1.0,
              "text": "[email protected]"
            }
          ]
        }
      }
    }
  ]
}