chore: Dockerfile cleaning

Dockerfile

@@ -2,8 +2,8 @@
 FROM python:3.11-alpine
 
 # setup environment variable  
-ENV PYTHONDONTWRITEBYTECODE=1
-ENV PYTHONUNBUFFERED=1
+ENV PYTHONDONTWRITEBYTECODE=1 \
+    PYTHONUNBUFFERED=1
 
 RUN python -m pip install --upgrade pip
 
@@ -12,20 +12,9 @@ RUN apk update && apk upgrade -i -a --update-cache
 WORKDIR /usr/src/app
 
 # Installing requirements from requirements.txt file
-# COPY requirements.txt /usr/src/app
-# RUN pip install -r requirements.txt
+COPY requirements.txt .
+RUN pip install --no-cache-dir -r requirements.txt
 
-# Installing secrets_safe library
-# COPY secrets_safe /usr/src/app/secrets_safe
+COPY src/ .
 
-# Installing requirements from requirements.txt file
-COPY requirements.txt /usr/src/app
-RUN pip install -r requirements.txt
-
-
-
-COPY src /src
-
-COPY main.py /main.py
-
-ENTRYPOINT ["python", "/main.py"]
+ENTRYPOINT ["python", "main.py"]