Add django container

docker/django/Dockerfile

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+FROM python:3.8-alpine AS builder
+RUN apk update && apk add gcc musl-dev postgresql-dev \
+        && pip install psycopg2-binary
+
+# ---
+
+FROM python:3.8-alpine
+ENV PYTHONUNBUFFERED 1
+ENV DJANGO_SETTINGS_MODULE "freedcs.settings"
+
+RUN apk update && apk add --no-cache postgresql-libs
+COPY --from=builder /usr/local/lib/python3.8/site-packages/ /usr/local/lib/python3.8/site-packages/
+COPY --chown=1000:1000 freedcs /srv/app/freedcs
+COPY --chown=1000:1000 requirements.txt /tmp/requirements.txt
+
+RUN pip3 install -r /tmp/requirements.txt && rm /tmp/requirements.txt
+
+USER 1000:1000
+WORKDIR /srv/app/freedcs
+CMD ["python3", "manage.py", "runserver"]

docker/django/production.py.sample

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+# vim: syntax=python
+
+from freedcs import settings
+
+# SECURITY WARNING: keep the secret key used in production secret!
+SECRET_KEY = 'i4z%50+4b4ek(l0#!w2-r1hpo%&r6tk7p$p_-(=6d!c9n=g5m&'
+
+# SECURITY WARNING: don't run with debug turned on in production!
+DEBUG = True
+
+ALLOWED_HOSTS = ['*']
+
+DATABASES = {
+    'default': {
+        'ENGINE': 'django.db.backends.postgresql',
+        'NAME': 'freedcs',
+        'USER': 'freedcs',
+        'PASSWORD': 'password',
+        'HOST': 'timescale',
+        'PORT': '5432',
+    }
+}
+
+MQTT_BROKER = {
+    'HOST': 'rabbitmq',
+    'PORT': 1883,
+}
+
+SKIP_WHITELIST = True