Platform as a service

Q: How deeply does Amazon Web Services in Action, Third Edition: An in-depth guide to AWS cover platform as a service?

Defines the service model and works through App Runner deployment, operations, pricing, and limitations without detailing platform internals.

As explained in Amazon Web Services in Action, Third Edition: An in-depth guide to AWS

A platform as a service is a cloud service model that provides a managed platform for deploying and running applications without managing the underlying infrastructure.

Platform as a service (PaaS) provides a managed platform for deploying custom applications without requiring direct management of the underlying infrastructure. AWS examples include Lambda, App Runner, Google App Engine, and Heroku. section 1.0

PaaS shifts operational responsibility from the application developer to the managed service:

Deploys applications to a cloud platform rather than directly provisioning virtual machines, storage, and networking. section 1.0
Can provide flexible capacity, fault-tolerant services, and pay-per-use billing through AWS. section 1.10
Trades infrastructure control for simpler deployment and operations; individual services may impose limitations such as missing service-level agreements. section 18.2

AWS App Runner for a containerized web application

Provide App Runner with a container image containing a web application. App Runner runs and monitors the containers, distributes requests among them, and scales their number with load. The AWS CLI can create the service, retrieve its URL and RUNNING status, and delete it afterward. A small application used eight hours per day is estimated at $25.44 per month in the stated configuration; deleting unused services helps avoid unexpected charges. section 18.2

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Microsoft Azure in ActionPlatform as a service (PaaS) is a cloud service model that provides a managed application platform so customers can deploy software without managing the underlying infrastructure and operating system.

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Related concepts

iaasalternative to · Infrastructure as a Service is a cloud service model that provides on-demand computing, storage, and networking resources while customers manage the operating systems and applications they run.
Azure Bastionincludes · Azure Bastion is a fully managed Azure service that provides secure browser-based remote access to virtual machines through a virtual network without exposing them to the public internet.
shared-responsibility modelused by · A shared-responsibility model is an arrangement in which multiple parties divide accountability for operating, securing, managing, or assuring a system or service.
cloud computingkind of · Cloud computing is the on-demand delivery of computing resources and services over a network from remotely managed infrastructure.

This explainer was generated by Manning's knowledge graph from the text of Amazon Web Services in Action, Third Edition: An in-depth guide to AWS. The section links point to the parts of the book it draws on.