With 12factor style environment configs, it’s a very easy to accidentally connect to your production database when you think you’re connecting to dev. Here’s a simple guard you can add to make sure your DATABASE_URL isn’t somehow pointed to someplace it’s not supposed to (assuming you’re using Amazon AWS): bash: if [[ ${DATABASE_URL} == *”amazonaws”*…
Read More Patterns: don’t mess up the prod db!
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I posted about this a long time ago, but I was cleaning my hard drive and found this screenshot and I need to brag about how awesome Doom mooD was: The face animated The face got bloodier the higher the CPU usage got The expression changed depending on how quickly CPU usage changed Doomguy’s face…
Read More TBT: Doom mooD
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When building high performance Django sites, keeping the number of queries down is essential. And just like controlling technical debt and maintaining test coverage, being successful means making monitoring queries a natural part of your workflow. If your momentum has to be stopped to examine database queries, you’re not going to do it. The solution…
Read More Check yo queries before you wreck yo siteI’ve been learning Ansible off and on and off for the past year. I have so many complaints, but I still think it’s the least worst provisioning system out there. It’s online at crccheck.github.io/fuckingansible/, but I’ve also embedded it below: I’d go more into Ansible, just just thinking about it make me so angry. So…
Read More Demo: Fuckin A
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I’ve been interested in Ansible for a long time now, and thanks to my coworker’s expertise, I’ve been able to get my feet wet. My main barrier has been finding a way to run playbooks. For my first attempt at learning Ansible, I tried running it locally using `ansible_connection=local`. But I found that running it…
Read More Testing Ansibile Playbooks with VagrantI’ve come across tips on how to keep Docker images small and Dockerfiles with strange lines that seem to exist only to optimize image size. Well, it turns out they’re all wrong. They may have an effect with flat Docker images, but everything else (i.e. 99% of what people do), cleanup steps are just extra…
Read More Optimizing Docker Image Size For Real
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Tips n’ tricks I’ve picked up over the years for managing technical debt, specifically for large Django projects.
Read More Managing Technical Debt in Django ProjectsAt PyCon 2014, I learned about a package called “needle” from Julien Phalip’s talk, Advanced techniques for Web functional testing. When I tried using it with a Django project, I immediately ran into problems. The answer turned out to be “ignore the documentation”.
Read More How to Ignore the Needle Docs