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What is PaaS (Platform-as-a-Service)?

PaaS (Platform-as-a-Service) Definition

Platform-as-a-Service (PaaS) is a method of delivery in which an organization's developers can access software and tools via the web rather than on their local machines or computing environment. Because the platform is delivered via the internet and stored in the cloud, PaaS frees software development teams from having to worry about software updates, storage, or infrastructure.

What Is the Cloud and the 3 Main Cloud Service Models?

The cloud generally refers to software, data, and services that are stored and accessed via the internet rather than on the user's device. There are three main cloud service models.

PaaS

Used by an organization's software development team, PaaS allows teams of engineers to write, test, deploy, update, and manage software in the cloud. PaaS includes a variety of built-in services that help development teams write code more quickly. It can be used to create the smallest of applications or those that will be deployed enterprise wide.

IaaS

Infrastructure-as-a-Service (IaaS) delivers to organizations a complete cloud computing infrastructure, including servers, networks, operating systems, and storage. Enterprises that choose IaaS do not need to buy any additional hardware or equipment. Everything is delivered virtually through the cloud, and there is nothing physical to maintain.

软件即服务

Perhaps the most utilized of the three, Software-as-a-Service (SaaS) is a cloud service model in which a company delivers its software to users via the internet. The user does not need to download, manage, or keep updating software locally in a hard drive in order to use it. All a user needs is a web browser and an internet connection.

What Are the Common Scenarios of PaaS?

Development Framework

With PaaS, development teams can more easily write, review, share, test, and deploy code. PaaS includes several built-in development tools that facilitate and accelerate application development.

Analytics or Business Intelligence

Data analysts and data scientists can use PaaS to mine their organizations' data with greater fluency. The PaaS platform helps produce insights, patterns, and forecasts that allow organizations to unlock more meaning in their data.

Additional Services

Because the platform can handle and easily integrate several different web services and databases, PaaS can help various enterprise teams, including those involved in project management, human resources, and finance.

Types of PaaS

Public PaaS

This is where an organization subscribes to the same PaaS service that other enterprises use. Though there are separate accounts, everyone uses the same cloud resources stored on the same servers. A public PaaS offers infinite computing capacity.

Private PaaS

In a private PaaS, an organization uses a partitioned, isolated segment of the cloud rather than the public resources available to everyone else. As with a private cloud, an enterprise uses its own servers and infrastructure for added security.

Hybrid PaaS

As its name implies, organizations can use a blend of both public and private PaaS. The organization can decide which resources can be accessed via the public PaaS and which should be stored and secured in the private PaaS.

Communications PaaS

A communications PaaS allows developers to add voice, video, and messaging to their applications without having to build a real-time communications infrastructure. A communications PaaS includes sample code libraries, prebuilt applications, and application programming interfaces (APIs) to help developers incorporate communication elements into their applications.

Mobile PaaS

A mobile PaaS offers developers a suite of additional services to help them build mobile applications. These may include software development kits (SDKs) for the major mobile operating systems, including iOS and Android.

Open PaaS

Open PaaS is an open-source project with open standards built using popular free software. It is also a social and collaboration platform.

What Is Included in PaaS?

Development Tools

The most important components of a PaaS include the tools needed by software engineers to write, test, deploy, debug, and manage code.

Middleware

Middleware is the "invisible" software that helps end-users interact with software. This includes software that enables applications to understand the keyboard or mouse clicks input by a user.

Operating Systems

PaaS provides any and all operating systems that developers need to work on, without the developer needing to worry about using the latest version or updating it for security patches.

Database Management

PaaS enables developers to create, query, and maintain the databases needed for successful applications.

Infrastructure

By using PaaS, all infrastructure, including storage and servers, is taken care of. Development teams do not need to worry about infrastructure when building applications.

Advantages of PaaS

Cut Coding Time

PaaS includes several services, such as code libraries and debugging tools, that allow development teams to cut coding time.

Additional Development Capabilities Without Adding Staff

Development teams can do more with less with the additional services offered by PaaS. For example, a team may not need to hire an additional tester because PaaS includes a debugging tool.

Developing for Multiple Platforms

Many PaaS providers include SDKs so development teams can simultaneously build code for multiple browsers and operating systems, including those for mobile.

Affordable Use of Sophisticated Tools

The pay-as-you-go model enables development teams to use what they need as they go along, managing costs and resources efficiently.

Support Geographically Distributed Development Teams

As with any cloud-based services, PaaS can support teams that are located anywhere as long as they have internet access.

Efficiently Manage the Application Life Cycle

PaaS providers have built-in tools that help developers throughout the application development life cycle. PaaS enables teams to not just push code to production but also test, debug, modify, and manage all versions of an application.

Faster Time To Market

Because code can be developed faster, applications can be deployed to employees or customers faster, saving time and enabling faster revenue generation.

More Cost-effective

Development teams need not purchase separate code editors, virtual machines, deployment tools, or security software, as all the resources they need are hosted in the cloud via the PaaS platform.

Ease of Licensing

PaaS providers manage all the licenses for all the tools needed, freeing up the development team from this administrative burden.

Drawbacks of PaaS?

Vendor Lock-in

Because an application is built using the PaaS vendor's tools, it can be difficult to switch to another provider, especially for large, complex applications. If a development team intends to bring its development off a PaaS platform, they may need to rebuild portions of their application.

Security and Compliance Challenges

Not only do enterprises entrust their code and data to the PaaS vendor but they also expect the PaaS vendor to maintain the strictest of security standards. For companies in regulated industries that must continuously demonstrate the strength of their data security and privacy, such as healthcare and finance, this can be a challenge.

Vendor Dependency

Even if a development team is pleased with its PaaS provider, any changes may have an impact on an application. For example, changes in infrastructure, such as server availability, may impact the performance of the application. Even small pricing changes can make the application much more expensive to deliver and maintain.

Good Examples of PaaS?

Some of the largest cloud computing companies have PaaS offerings. Amazon offers two: Amazon Web Services (AWS) Elastic Beanstalk and AWS Lambda. Google Cloud Platforms include PaaS platforms Google App Engine and Google Cloud Functions, while Microsoft offers Azure App Service and Azure Functions.

How Fortinet Can Help

FortiSandbox Cloud is the Fortinet PaaS security solution, with protection against advanced threats built into the platform. FortiSandbox Cloud offers development teams a sandbox environment that they can access, configure, and maintain to test and experiment with code safely and securely. FortiSandbox Cloud can integrate with Fortinet and third-party security solutions or point products as needed.

For added security, the FortiGate virtual machine is available for development teams using the Google Cloud Platform. It helps enterprises maximize the scale and flexibility of the public cloud by adding the security, control, and visibility afforded by infrastructure that will normally be on-premises. 

FAQs

What is PaaS?

Platform-as-a-Service (PaaS) is a method of delivery in which an organization's developers can access software and tools via the web rather than on-premises.

What are examples of PaaS?

PaaS examples include Amazon Web Services (AWS) Elastic Beanstalk and AWS Lambda from Amazon, Google App Engine and Google Cloud Functions, and Azure App Service and Azure Functions from Microsoft.

How secure is PaaS?

PaaS security is normally reliant on the provider and the security of their IaaS, which is part of PaaS.

How can we protect PaaS?

An organization can install a firewall, such as the Fortinet FortiGate next-generation firewall (NGFW), for added security.

What is PaaS security?

PaaS security refers to the security of the cloud infrastructure on which the suite of development tools and services is hosted.