[deklerk]

> the difference is between Docker and Google App Engine

Neither the question nor the answer in your link compare Docker and App Engine.

Docker is a containerization platform, whereas App Engine is a PaaS (platform as a service). Their functions are wholly different.

Very, very loosely; Docker is about building and running an individual package of some software. Basically, bundling software and running bundles. PaaS are platforms for developing, running, and managing (often pre-bundled) software.

[mikece]

Would it be more accurate to compare Google App Engine (PaaS) to Azure Web Apps or App Service (also PaaS)? Docker is in a weird spot of not really being PaaS but yet too light to be considered IaaS... I tend to think of it as sufficiently PaaS-like except it runs on everyone's cloud as well as my laptop.