SLIs, SLOs, and SLAs create a hierarchy. They measure reliability and create an objective framework for prioritization and decision making.
The pre-commit prevents known bad commits from entering the deployment pipeline. Use it as tool to improve percent-complete-percent-accurate in your deployment pipeline.
A follow up interview I did on the Rails with Jason Podcast. Similar to the first episode of this podcast but with more details. Great if you prefer conversations instead of lectures.
Preflight checks prevent deploys into known bad conditions
My guest appearance on Rails with Jason. We discussed designing deployment pipelines with preflight checks and smoke tests. Also the philosophy for DevOps and the importance of automated testing.
The four types of work--features, defects, debts, and risks--under pin the Flow Framework
The 12.1 factor app strives for dev/prod parity where practical and eschews it when not. This requires differenating between bounded and unbounded contexts.
Three additions to the original 12 factor app logs factor
Patch level improvements to the original 12 factor apps. 4 points to improve the configuration factor in your application.
The 12 factor app sets guidelines for designing software for deployment pipelines. They're a great starting point that can be improved upon. See why in this episode.
A look into into how fostering a culture of experimentation and learning drive continuous improvement. This is known as the Third Way of DevOps.
The Principle of Feedback, or the second way of DevOps, describes using right to left feedback in the value stream.
A look into the Principle of Flow which calls for fast feedback cycles from development to production.
Learn the "Thee Ways" of DevOps: flow, feedback, and learning as measured by lead time, deployment frequency, MTTR, and change failure rate.
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