version: "3"
services:

  haystack-api:
    build:
      context: .
      dockerfile: Dockerfile-GPU
    image: "deepset/haystack-gpu:latest"
    # in recent docker-compose version you can enable GPU resources. Make sure to fulfill the prerequisites listed here: https://docs.docker.com/compose/gpu-support/
    deploy:
      resources:
        reservations:
          devices:
          - driver: nvidia
            count: 1
            capabilities: [gpu]
    # # Mount custom Pipeline YAML and custom Components.
    # volumes:
    #   - ./rest_api/pipeline:/home/user/rest_api/pipeline
    ports:
      - 8000:8000
    restart: on-failure
    environment:
      # See rest_api/pipeline/pipelines.haystack-pipeline.yml for configurations of Search & Indexing Pipeline.
      - DOCUMENTSTORE_PARAMS_HOST=elasticsearch
      - PIPELINE_YAML_PATH=/home/user/rest_api/pipeline/pipelines_dpr.haystack-pipeline.yml
      - CONCURRENT_REQUEST_PER_WORKER
    depends_on:
      - elasticsearch
    command: "/bin/bash -c 'sleep 10 && gunicorn rest_api.application:app -b 0.0.0.0 -k uvicorn.workers.UvicornWorker --workers 1 --timeout 180'"

  elasticsearch:
    # This will start an empty elasticsearch instance (so you have to add your documents yourself)
    #image: "elasticsearch:7.9.2"
    # If you want a demo image instead that is "ready-to-query" with some indexed articles
    # about countries and capital cities from Wikipedia:
    image: "deepset/elasticsearch-countries-and-capitals"
    ports:
      - 9200:9200
    restart: on-failure
    environment:
      - discovery.type=single-node

  ui:
    build:
      context: ui
      dockerfile: Dockerfile
    image: "deepset/haystack-streamlit-ui:latest"
    ports:
      - 8501:8501
    restart: on-failure
    environment:
      - API_ENDPOINT=http://haystack-api:8000
      - EVAL_FILE=eval_labels_example.csv
      # The value fot the following variables will be read from the host, if present.
      # They can also be temporarily set for docker-compose, for example:
      # DISABLE_FILE_UPLOAD=1 DEFAULT_DOCS_FROM_RETRIEVER=5 docker-compose up
      - DISABLE_FILE_UPLOAD
      - DEFAULT_QUESTION_AT_STARTUP
      - DEFAULT_DOCS_FROM_RETRIEVER
      - DEFAULT_NUMBER_OF_ANSWERS
    command: "/bin/bash -c 'sleep 15 && python -m streamlit run ui/webapp.py'"