Open-Sourcing Our Incident Response Documentation
pagerduty.com
pagerduty.com
Probably the most significant thing I learned was the power of automation through Incident Models. I spent 7 months of my own time, full time, writing them for the previous two years' major incidents. This changed my life, as I simply stopped getting called, and juniors only escalated to me when the docs were faulty.
(I'd read The Checklist Manifesto, which I couldn't recommend enough, BTW).
In more trad automation, I got a little obsessed by automating the construction of environments, but in a human-readable way:
http://ianmiell.github.io/shutit/
and Docker (wrote this book):
https://www.amazon.com/Docker-Practice-Ian-Miell/dp/16172927...
See also:
https://medium.com/@zwischenzugs
I should really write up those experiences; the passage of time has given me more perspective on them. I don't work in ops anymore :)
It's definitely a game-changer and sad to see most orgs don't do a post-mortem or incident model report at all.