add function to overwrite snake config when its set as env and use smaller python alpine container as base

Dockerfile

@@ -1,4 +1,4 @@
-FROM python:3.10.6-slim
+FROM python:alpine
 
 # Install app
 COPY . /app

requirements.txt

@@ -1,10 +1,8 @@
 blinker==1.7.0
 click==8.1.7
-Flask==3.0.2
+Flask==3.0.3
-itsdangerous==2.1.2
+itsdangerous==2.2.0
 Jinja2==3.1.3
 MarkupSafe==2.1.5
-numpy==1.26.4
 python-dotenv==1.0.1
-scipy==1.12.0
+Werkzeug==3.0.2
-Werkzeug==3.0.1

server/Server.py

@@ -63,9 +63,15 @@ class Server:
   def _read_json_config_or_create(self):
     snake_config = read_file(self.config_file, json.load)
     if not snake_config:
-      snake_config = self.default_snake_config
+      snake_config = self._override_snake_config_with_environment_variables(self.default_snake_config)
       save_file(self.config_file, snake_config, callback=json.dump, indent=2, ensure_ascii=False)
-    return snake_config
+    return self._override_snake_config_with_environment_variables(snake_config)
+
+  def _override_snake_config_with_environment_variables(self, config:dict[str]):
+    for key in ["color", "head", "tail"]:
+      if os.environ.get(f"SNAKE_{key.upper()}", None):
+        config[key.lower()] = os.environ.get(f"SNAKE_{key.upper()}")
+    return config
 
   def enable_store_game_state(self):
     self.store_game_state = True
@@ -75,8 +81,6 @@ class Server:
   # TIP: If you open your Battlesnake URL in a browser you should see this data
   def _info(self) -> dict:
     snake_config = self._read_json_config_or_create()
-    if os.environ.get("COLOR", None):
-      snake_config["color"] = os.environ.get("COLOR")
 
     print("INFO Snake:", snake_config)
     return snake_config