added django channels, celery, redis, postgres, gunicorn and whitenoise

Dockerfile

@@ -1,8 +1,28 @@
-FROM python:3-alpine
+FROM python:3-alpine as base
+
+FROM base as builder
 
 ENV PYTHONUNBUFFERED 1
 
-WORKDIR /opt/app
-COPY . .
+RUN apk update && apk add --no-cache --virtual .build-deps libc-dev make gcc musl-dev python3-dev libffi-dev openssl-dev cargo postgresql-dev
+RUN mkdir /install
+WORKDIR /install
+RUN python -m venv venv
+ENV PATH="/install/venv/bin:$PATH"
+COPY requirements.txt .
+RUN python -m pip install --prefix=/install --no-cache-dir --upgrade pip && \
+    pip install --prefix=/install --no-cache-dir -r requirements.txt && \
+    apk del .build-deps gcc libc-dev make
 
-RUN python -m pip install --upgrade pip && pip install -r requirements.txt
+FROM base 
+
+COPY --from=builder /install /usr/local
+COPY app /app
+WORKDIR /app
+COPY run.sh .
+RUN apk add --no-cache postgresql-dev iputils
+RUN addgroup -S user && adduser -S user -G user –no-create-home
+RUN chmod -R 755 /app && chown -R user:user /app
+USER user
+
+CMD ["./run.sh"]