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CareerVillage Is a Community Where Students Can Get Career Advice

In this episode of Running in Production, Jared Chung talks about building a community platform with Django and Python. It’s hosted on AWS and has been up and running in production since 2011. The beta version was intially built during a 4 day hackaton.

Jared talks about taking advantage of Django’s batteries included, heavily using Celery / Redis and hosting the main web app on a single EC2 instance. Their AWS bill is roughly $2,500 a month.

Topics Include

  • 3:59 – Building a beta version of the site during a 4 day hackathon
  • 5:38 – Motivation for picking Django and Python
  • 10:11 – Leaning heavily on the built in Django admin and other libraries
  • 12:24 – Mostly server rendered Django templates with a touch of React
  • 16:03 – It’s mostly a monolithic app but it has a few services pulled out
  • 20:54 – PostgreSQL is the main database and Celery / Redis is heavily used
  • 24:58 – gunicorn + Caddy, Route53 for DNS and a load balancer, Docker end to end
  • 27:45 – Tens of thousands of lines of code, ~3,500 files and good test coverage
  • 31:11 – Webpack is being used to handle the front-end assets (SASS and ES6 JS)
  • 34:36 – Static files are cached on CloudFront and in general development is pretty hard
  • 39:07 – RDS is being used and the production web app has 4 vCPUs & 16GB of RAM on EC2
  • 42:46 – New Relic, PagerDuty and Sentry are being used for monitoring and alerts
  • 46:11 – There’s no configuration management tools being used to set up the EC2 server
  • 48:13 – Going from developing a feature to deploying it into production
  • 53:56 – RDS is configured for backups and there’s a lot of backing up in general
  • 55:39 – Storing ~200k questions each having 10-20 DB rows + 120k registered users
  • 56:32 – Their AWS bill fluctuates between $2,000 and $3,000 USD per month
  • 58:29 – Best tips? There’s a lot to learn out there but focus on keeping your users happy
  • 1:00:28 – Want to volunteer? Contact them at hello@careervillage.org
  • 1:01:04 – CareerVillage.org is on Twitter, facebook and Instagram - so is Jared
πŸ“„ References
βš™οΈ Tech Stack
πŸ›  Libraries Used

Support the Show

This episode does not have a sponsor and this podcast is a labor of love. If you want to support the show, the best way to do it is to purchase one of my courses or suggest one to a friend.

  • Dive into Docker is a video course that takes you from not knowing what Docker is to being able to confidently use Docker and Docker Compose for your own apps. Long gone are the days of "but it works on my machine!". A bunch of follow along labs are included.
  • Build a SAAS App with Flask is a video course where we build a real world SAAS app that accepts payments, has a custom admin, includes high test coverage and goes over how to implement and apply 50+ common web app features. There's over 20+ hours of video.

Questions

Jan 11, 2021

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