a few docker-related fixes

backend/Dockerfile

@@ -14,4 +14,4 @@ EXPOSE 8000
 ENV NUM_WORKERS=1
 ENV OSM_CACHE_DIR=/cache
 
-CMD ["fastapi", "run", "src/main.py", "--port 8000", "--workers $NUM_WORKERS"]
+CMD fastapi run src/main.py --port 8000 --workers $NUM_WORKERS

backend/src/constants.py

@@ -2,7 +2,8 @@ import logging.config
 from pathlib import Path
 import os
 
-PARAMETERS_DIR = Path('src/parameters')
+LOCATION_PREFIX = Path('src')
+PARAMETERS_DIR = LOCATION_PREFIX / 'parameters'
 AMENITY_SELECTORS_PATH = PARAMETERS_DIR / 'amenity_selectors.yaml'
 LANDMARK_PARAMETERS_PATH = PARAMETERS_DIR / 'landmark_parameters.yaml'
 OPTIMIZER_PARAMETERS_PATH = PARAMETERS_DIR / 'optimizer_parameters.yaml'
@@ -16,7 +17,7 @@ OSM_CACHE_DIR = Path(cache_dir_string)
 import logging
 import yaml
 
-LOGGING_CONFIG = Path('log_config.yaml')
+LOGGING_CONFIG = LOCATION_PREFIX / 'log_config.yaml'
 config = yaml.safe_load(LOGGING_CONFIG.read_text())
 
 logging.config.dictConfig(config)