move static env to dockerfile

Dockerfile

@@ -4,12 +4,17 @@ RUN apt-get update \
     curl ca-certificates iputils-ping \
     python3-ldap python3-pip python3-ldap \
     libjpeg-dev libturbojpeg0-dev \
- && rm -rf /var/lib/apt/lists/* \
- && apt-get clean
-COPY requirements.txt ./
+ && rm -rf /var/lib/apt/lists/*
+
+ COPY requirements.txt ./
 #necessary hack for cffi
 RUN pip3 install cffi
 RUN pip3 install -r requirements.txt
-COPY inventory-app /app
+
+ENV PYTHONUNBUFFERED=1
+ENV ENVIRONMENT_TYPE=PROD
+
 WORKDIR /app
-ENTRYPOINT /app/main.py
+COPY inventory-app .
+
+ENTRYPOINT ["python3", "/app/main.py"]