Cloud Computing
What the cloud really is: data centres, virtual machines, containers, storage, scaling, security and the bill at the end of the month.
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Lesson 1
Lesson 1 — What Actually Is 'The Cloud'?
Spoiler: it's someone else's computer — thousands of them, in a warehouse, rented by the second.
- 75
Lesson 2
Lesson 2 — IaaS, PaaS and SaaS
How much of the stack do you want to manage? Pizza-as-a-Service explains it best.
- 85
Lesson 3
Lesson 3 — Virtual Machines and Containers
How one physical server pretends to be fifty, and why containers made deployment boring (in a good way).
- 85
Lesson 4
Lesson 4 — Storage, Databases and Scaling
Object vs block vs file, SQL vs NoSQL, and why 'just add another server' is harder than it sounds.
- 95
Lesson 5
Lesson 5 — Cloud Security and Shared Responsibility
The provider secures the cloud. You secure what you put in it — and most breaches happen on your side of that line.
- 95
Lesson 6
Lesson 6 — Cost, Scaling Strategy and Green Cloud
FinOps for teenagers: why an idle test environment can cost more than a games console every month.