modifying container to run with low privilege user , updating alpine version ,updated django version

Signed-off-by: salecharohit <i@rohitsalecha.com>

django/README.md

@@ -27,10 +27,10 @@ services:
 $ docker-compose up -d
 Creating network "django_default" with the default driver
 Building web
-Step 1/6 : FROM python:3.7-alpine
+Step 1/6 : FROM python:alpine3.14
 ...
 ...
-Status: Downloaded newer image for python:3.7-alpine
+Status: Downloaded newer image for python:alpine3.14
 Creating django_web_1 ... done
 
 ```

django/app/Dockerfile

@@ -1,8 +1,10 @@
-FROM python:3.7-alpine 
-EXPOSE 8000
-WORKDIR /app 
-COPY requirements.txt /app
+FROM python:alpine3.14
+RUN addgroup django && adduser -D -h /home/django -s /bin/ash django -G django
+WORKDIR /home/django
+USER django
+COPY requirements.txt /home/django
 RUN pip3 install -r requirements.txt --no-cache-dir
-COPY . /app 
+COPY . /home/django
+EXPOSE 8000
 ENTRYPOINT ["python3"] 
 CMD ["manage.py", "runserver", "0.0.0.0:8000"]

django/app/requirements.txt

@@ -1,2 +1,2 @@
-Django==3.0.14
+Django==3.2.5
 environs==7.3.1