Update Gunicorn configuration.

Author: toddbirchard

README.md

@@ -25,7 +25,7 @@ Get set up locally in two steps:
 Replace the values in **.env.example** with your values and rename this file to **.env**:
 
 * `ENVIRONMENT`: Enable (`development` or `production`).
-* `FLASK_APP`: Entry point of your application; should be `main.py`.
+* `FLASK_APP`: Entry point of your application; should be `wsgi.py`.
 * `FLASK_DEBUG`: Toggle debug mode on (`True`) or off (`False`).
 * `SECRET_KEY`: Randomly generated string of characters used to encrypt your app's data.
 * `SQLALCHEMY_DATABASE_URI`: Connection URI of a SQL database (ie: `mysql+pymysql://myuser:[email protected]:1234/mydatabase`)

gunicorn.conf.py

@@ -3,9 +3,11 @@
 
 from dotenv import load_dotenv
 
+# Read environment variables from ".env" file.
 basedir = path.abspath(path.dirname(__file__))
 load_dotenv(path.join(basedir, ".env"))
 
+# Fetch deployment environment from environment variables.
 ENVIRONMENT = environ.get("ENVIRONMENT")
 
 proc_name = "flasksession"
@@ -14,15 +16,16 @@
 threads = 4
 workers = 2
 
-if ENVIRONMENT == "development":
+if ENVIRONMENT == "development" or ENVIRONMENT is None:
     reload = True
     workers = 1
     threads = 1
     bind = ["127.0.0.1:8000"]
-
-if ENVIRONMENT == "production":
+elif ENVIRONMENT == "production":
     daemon = True
     accesslog = "/var/log/flasksession/access.log"
     errorlog = "/var/log/flasksession/error.log"
     loglevel = "trace"
     dogstatsd_tags = "env:prod,service:flasksession,language:python"
+else:
+    raise ValueError(f"Unknown environment provided: `{ENVIRONMENT}`. Must be `development` or `production`.")

pyproject.toml

@@ -6,9 +6,9 @@ authors = ["Todd Birchard <[email protected]>"]
 maintainers = ["Todd Birchard <[email protected]>"]
 license = "MIT"
 readme = "README.md"
-homepage = "https://hackersandslackers.com/managing-user-session-variables-with-flask-sessions-and-redis/"
+homepage = "https://hackersandslackers.com/flask-user-sessions-and-redis/"
 repository = "https://github.com/hackersandslackers/flask-session-tutorial/"
-documentation = "https://hackersandslackers.com/managing-user-session-variables-with-flask-sessions-and-redis/"
+documentation = "https://hackersandslackers.com/flask-user-sessions-and-redis/"
 keywords = ["Flask", "Flask-Session", "Redis", "User sessions", "Tutorial"]
 
 [tool.poetry.dependencies]