← Module 05: Engineering delivery and operations
MODULE 05 · ENGINEERING DELIVERY AND OPERATIONS · 40 MINUTES
Engineering delivery and operations
Present slides ▶
Full screen, one slide at a time · 5 slides
How a change reaches customers
- GITEvery change is recorded: who, what, when and why
- REVIEWAnother person reads it before it is merged
- AUTOMATED TESTSHundreds of checks run on every change, in minutes
- CI/CDThe pipeline builds, tests and deploys the same way every time
- STAGINGA safe copy of production to try it first
- PRODUCTIONReleased in small steps, watched, and reversible
Small, tested, reversible changes, many times a week, are safer than big releases once a quarter.
Environments and release controls
- DEVELOPMENTEach developer’s own copy, with fake data
- STAGINGLike production, with no real personal data
- PRODUCTIONReal customers, real data, limited access
- RELEASE CONTROLSReviews, passing tests, feature flags and a rollback plan
Real customer data stays in production. Copying it to test with is a breach waiting to happen.
Observability and incidents
- LOGSWhat happened, in order, for investigating problems
- METRICSNumbers over time: speed, errors, bookings per minute
- ALERTSA person is told when something breaks, before customers notice
- INCIDENT RESPONSEWho leads, how customers are told, how it is fixed
- REVIEW WITHOUT BLAMEWhat we learned, and what changes so it can’t happen again
If nobody is told when production breaks, your customers will tell you, publicly.
AI-written code: faster, not free
What AI coding tools change
- Drafts, tests and fixes in minutes
- Small teams can build much more
- Non-engineers can prototype and explore
What a CTO still insists on
- A person who understands and reviews every change
- Tests, security checks and the same release controls
- No secrets or customer data pasted into AI tools
Organise engineering around review, tests and ownership, whoever or whatever writes the code.
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