compose-init.yaml

services:
  init_ensure_models:
    image: alpine:latest
    volumes:
      - ./worker/models:/worker/models
    entrypoint: >
      /bin/sh -c "
      if [ ! -f /worker/models/nlp/my_model.gguf ]; then
        echo 'Downloading models...';
        mkdir -p /worker/models/nlp/ &&
        wget -O /worker/models/nlp/my_model.gguf http://path.to.huggingface/models/my_model.gguf;
      fi;
      echo 'Model download completed or already exists.'"
    depends_on:
      - condition: service_completed_successfully

  worker:
    ...
    volumes:
      - ./worker/models:/worker/models
    depends_on:
       init_ensure_models:
        condition: service_completed_successfully