Final changes to make it work with Azure App Service

Author: kraigb

Dockerfile

@@ -1,12 +1,37 @@
 # Pull a pre-built alpine docker image with nginx and python3 installed
 FROM tiangolo/uwsgi-nginx:python3.6-alpine3.7
 
+# Set the port on which the app runs; make both values the same.
+#
+# IMPORTANT: When deploying to Azure App Service, go to the App Service on the Azure 
+# portal, navigate to the Applications Settings blade, and create a setting named
+# WEBSITES_PORT with a value that matches the port here (the Azure default is 80).
+# You can also create a setting through the App Service Extension in VS Code.
 ENV LISTEN_PORT=8000
 EXPOSE 8000
 
+# Indicate where uwsgi.ini lives
+ENV UWSGI_INI uwsgi.ini
+
+# Tell nginx where static files live. Typically, developers place static files for
+# multiple apps in a shared folder, but for the purposes here we can use the one
+# app's folder. Note that when multiple apps share a folder, you should create subfolders
+# with the same name as the app underneath "static" so there aren't any collisions
+# when all those static files are collected together, as when using Django's
+# collectstatic command.
+ENV STATIC_URL /app/static_collected
+
 # Copy the app files to a folder and run it from there
 WORKDIR /app
 ADD . /app
 
+# Make app folder writeable for the sake of db.sqlite3, and make that file also writeable.
+# Ideally you host the database somewhere else so that the app folders can remain read only.
+# Without these permissions you see the errors "unable to open database file" and
+# "attempt to write to a readonly database", respectively, whenever the app attempts to
+# write to the database.
+RUN chmod g+w /app
+RUN chmod g+w /app/db.sqlite3
+
+# Make sure dependencies are installed
 RUN python3 -m pip install -r requirements.txt
-CMD ["uwsgi", "uwsgi.ini"]

uwsgi.ini

@@ -2,8 +2,6 @@
 chdir = .
 module = web_project.wsgi:application
 env = DJANGO_SETTINGS_MODULE=web_project.settings
-protocol = http
-socket = 127.0.0.1:8000
 uid = 1000
 master = true
 threads = 2

web_project/settings.py

@@ -23,8 +23,12 @@
 SECRET_KEY = '2gult1d96#@#b2%tz+k9x1q%-4(%f@va-!sbv*q&$t^gpp8-_='
 
 # SECURITY WARNING: don't run with debug turned on in production!
+# If you set to False, also add "localhost" to ALLOWED_HOSTS or else
+# you'll get "Bad Request" when running locally.
 DEBUG = True
 
+# When deploying to Azure App Service, add you <name>.azurewebsites.net 
+# domain to ALLOWED_HOSTS; you get an error message if you forget.
 ALLOWED_HOSTS = []