Book Image

Django Project Blueprints

By : Asad Jibran Ahmed
Book Image

Django Project Blueprints

By: Asad Jibran Ahmed

Overview of this book

Django is a high-level web framework that eases the creation of complex, database-driven websites. It emphasizes on the reusability and pluggability of components, rapid development, and the principle of don't repeat yourself. It lets you build high-performing, elegant web applications quickly. There are several Django tutorials available online, which take as many shortcuts as possible, but leave you wondering how you can adapt them to your own needs. This guide takes the opposite approach by demonstrating how to work around common problems and client requests, without skipping the important details. If you have built a few Django projects and are on the lookout for a guide to get you past the basics and to solve modern development tasks, this is your book. Seven unique projects will take you through the development process from scratch, leaving no stone unturned. In the first two projects, you will learn everything from adding ranking and voting capabilities to your App to building a multiuser blog platform with a unique twist. The third project tackles APIs with Django and walks us through building a Nagios-inspired infrastructure monitoring system. And that is just the start! The other projects deal with customizing the Django admin to create a CMS for your clients, translating your web applications to multiple languages, and using the Elasticsearch search server with Django to create a high performing e-commerce web site. The seventh chapter includes a surprise usage of Django, and we dive deep into the internals of Django to create something exciting! When you're done, you'll have consistent patterns and techniques that you can build on for many projects to come.
Table of Contents (15 chapters)
Django Project Blueprints
Credits
About the Author
About the Reviewer
www.PacktPub.com
Preface
Index

Alerts


Now that we have a basic status page up and running, let's talk about allowing the user to configure some alert conditions. For now, we will inform the user of any alert condition by showing that node's information in red color on the status page.

First, we need to figure out what kind of alerts we want our users to set. From there, we can figure out the technical details. So, let's think about it. Given that the data types we are recording all have numeric values, it makes sense that the user should be able to set thresholds. They can, for instance, set an alert if the system load of any node goes above 1.0 or if the disk usage of a node goes above 80%.

Furthermore, maybe our users don't want to have the same alert conditions for each node. A database node is expected to handle a lot of system load, so maybe our users want to have a separate alert condition for the database node. Finally, if they are doing maintenance on some of the nodes, they may want to stop some alerts from triggering...