Season's Freezings: Change Freezes with Rich Lafferty
PagerDuty Staff SRE Rich Lafferty joins Scott McAllister and Mandi Walls for a session on Change Freezes, why PagerDuty does them, and how we manage change during times when a majority of folks are out of the office.
Follow our Twitch channel for more live streams: https://bit.ly/3FqonQq
Check out the @Rundeck Twitter account and these posts in the Season’s Freezings series:
- Damon Edwards’ post about Toil (https://bit.ly/3uuJb4R)
- View our webinar, “New Best Practices for Designing Self-Service Automation for IT Processes” (https://bit.ly/3BgX7Dn)
00:00 - Intro
04:30 - How PagerDuty thinks about change freezes, being an international team.
07:45 - Is it a #CodeFreeze or #ChangeFreeze?
10:00 - The difference between having a freeze when some folks are in the office and when almost no one is in the office - US Thanksgiving vs winter holidays.
11:45 - “Thawing” from a freeze.
13:20 - Asking teams to be “careful” in production.
16:00 - Trading the impact of an incident for a regular work day instead of a holiday.
16:45 - Richard Cook’s How Complex Systems Fail. (https://how.complexsystems.fail/)
19:30 - Unintended side effects of change freezes.
21:45 - Should you have a change freeze?
23:55 - Do we freeze staging and load test environments?
26:45 - What if you really have to deploy during a freeze?
33:30 - A sidetrack on postmortems vs incident reviews, why the language matters, and what technology teams can learn from other industries. Westrum Model and Atul Gawande. (https://cloud.google.com/architecture/devops/devops-culture-westrum-organizational-culture and https://en.wikipedia.org/wiki/Atul_Gawande#Books respectively)
38:45 - Using a freeze time to tackle toil. Rich’s team has “Delight Weeks” as well.
43:00 - How PagerDuty SRE is working with Process Automation to improve processes for host and asset management.
Join the PagerDuty Community today https://bit.ly/3aiDEEI
#ChangeManagement #IncidentResponse #IncidentManagement