(Main Infrastructure directory is here)

Docs and Blog Posts

GitHub Repos

Sadly by necessity some of my repos are private. Those that are private are clearly marked. For those that are, please don’t ask me to share the code, because I can’t. They’re listed here purely for my reference.


DORA State of DevOps 2019

  • DORA State of DevOps report 2019 (accessible to Clare only) - you can download your own copy here
  • I saw a great presentation about this by Tito Sarrionandia (slides available to Clare only here) where he talked about four key metrics:
    • Deployment frequency
    • Lead time
    • Time to restore
    • Change failure rate
  • He made the following points:
    • Those four measurable areas are not tradeoffs
    • They represent measures of speed and of stability - they correlate highly with each other
    • Organisations moving faster, are typically breaking less.
    • There is no evidence that organisations are able to optimise one of those things by trading off the others. High performers score highly across the board in all four metrics, low performers score badly across the board.
  • Blog post about the report

The Three Ways of DevOps

  • From The Phoenix Project and The DevOps handbook
  • The First Way: Principles of Flow
  • The Second Way: Principles of Feedback
  • The Third Way: Principles of Continuous Learning
  • More here