Doing it deliberately.
WHAT TO ESTABLISH FIRST
What problem you are solving.
WHAT GOOD ANSWERS LOOK LIKE
Environments that differ and cause failures Deployment that is slow or risky Onboarding that takes days Difficulty running several versions
WHAT POOR ANSWERS LOOK LIKE
It is what everyone uses It will make us scalable
WHY THAT SECOND ONE FAILS
Containers do not make an application able to run as several instances.
WHAT ORDER TO WORK IN
Containerise one application Run it in one environment Establish the build pipeline Move non-production environments Move production Consider orchestration only afterwards
WHY THAT ORDER
Each step delivers value and teaches what the next requires.
WHAT TO CHOOSE FIRST
An application that is important enough to matter and simple enough to succeed.
WHAT NOT TO CHOOSE FIRST
The most complex system you have Anything stateful
WHAT TO EXPECT
Configuration and state problems, not packaging problems.
WHAT TO BUDGET FOR
Learning, and the first few painful deployments.
WHAT TO ESTABLISH BEFORE PRODUCTION
Monitoring Backups A documented rollback
WHAT TO MEASURE
Whether deployment actually improved.
