Cloud Computing Deployment Models - Private Cloud, Hybrid Cloud, and Multicloud

Summary

This lesson delves into cloud computing deployment models, contrasting private, public, hybrid, and multicloud options. Private clouds offer control and security, utilizing in-house data centers with software layers like VMware, Microsoft, and OpenStack. Public clouds, highlighted by AWS, Azure, and Google Cloud, provide variable costs, scalability, and shared infrastructure. Hybrid clouds combine the two, offering flexibility in application placement and data movement. Multicloud strategies leverage multiple providers for diverse needs, increasing complexity but optimizing service use.

Takeaways

• 🌟 Cloud computing deployment models are distinct from service models, focusing on how the cloud is set up and used.
• 🏢 Private cloud deployment involves setting up infrastructure within an organization's own data center and requires additional software layers for cloud services.
• 🤖 Vendors like VMware, Microsoft, Red Hat, and OpenStack offer software solutions for private cloud environments.
• ☁️ Public cloud services are utilized by multiple customers and organizations, with AWS, Microsoft Azure, and Google Cloud Platform being the most prominent providers.
• 🔗 Hybrid cloud combines both private and public cloud services, connecting them for seamless data and application flow.
• 💡 The benefits of private cloud include complete control over the stack and potentially higher security tailored to specific needs.
• 💰 Public cloud offers variable expenses, operating as an operational expenditure (Opex) rather than a capital expenditure (Capex).
• 📈 Economies of scale in public cloud can lead to cost-effective solutions due to the large infrastructure and shared services among many customers.
• 🛠️ Elasticity in public cloud allows for almost limitless scalability, accommodating rapid business growth without the need for significant upfront investment.
• 🌐 Multicloud strategy involves using multiple public and private cloud services simultaneously, chosen based on the best fit for different applications and team preferences.
• 🔄 Multicloud environments increase complexity but allow organizations to leverage the best features of different cloud providers.

Q & A

What are the different cloud computing deployment models mentioned in the script?

The script discusses four deployment models: private cloud, public cloud, hybrid cloud, and multicloud.

What is a private cloud and how is it deployed?

A private cloud is a cloud computing environment where the infrastructure is deployed within an organization's own data center. It requires software layers on top of the hardware to function as a cloud service, including capabilities like billing, service catalog, and configuration management.

Which vendors offer software layers for private cloud deployment?

Vendors such as VMware, Microsoft, Red Hat, and OpenStack provide software layers that can be deployed on top of the hardware for private cloud services.

What are the three main public cloud providers discussed in the script?

The script mentions AWS (Amazon Web Services), Microsoft Azure, and Google Cloud Platform as the three largest public cloud providers.

What is a hybrid cloud and how does it differ from a private or public cloud?

A hybrid cloud is a deployment model that connects public and private clouds, allowing data and applications to be shared between them. It differs from private and public clouds by providing the ability to leverage both environments simultaneously.

What are the benefits of using a private cloud?

Private clouds offer complete control over the entire stack, allowing organizations to build it to their exact requirements. They can also provide enhanced security, as the infrastructure is managed within the organization's own data center.

What are the main advantages of public cloud services?

Public clouds offer variable expenses, operating as an operational expenditure rather than a capital expenditure. They also provide economies of scale, making them cost-effective, and have massive elasticity, allowing for almost limitless scaling capabilities.

How does a hybrid cloud allow for application deployment flexibility?

A hybrid cloud allows organizations to choose where to deploy their applications based on their needs. Some applications might make more sense in the data center, while others might benefit more from the scalability and services offered by the public cloud.

What is multicloud and why might an organization choose to implement it?

Multicloud refers to the use of two or more cloud services at the same time, often from different providers. An organization might choose to implement a multicloud strategy to leverage the best features of different clouds, such as specific services, development tools, or integrations.

What are some challenges associated with a multicloud environment?

While multicloud offers flexibility and the ability to use the best services from different providers, it also increases complexity. This can affect security and operational efficiency, as managing multiple cloud environments can be more difficult.

How does the script describe the difference in security levels between private and public clouds?

The script notes that while public clouds, like AWS, have a high level of built-in security that is difficult to replicate, there are situations where an organization might require full control over every layer of the stack for security reasons, which can only be achieved with a private cloud.

Outlines

00:00

🌟 Cloud Computing Deployment Models Overview

This paragraph introduces the concept of cloud computing deployment models, which are distinct from service models. It explains the difference between private, public, hybrid, and multicloud deployments. Private clouds involve deploying infrastructure within an organization's own data center, requiring specific software layers for functionalities like billing and service catalogs. Vendors such as VMware, Microsoft, Red Hat, and OpenStack offer the necessary software. Public clouds, exemplified by AWS, Microsoft Azure, and Google Cloud Platform, are services used by multiple customers and are characterized by variable expenses and economies of scale. Hybrid clouds connect public and private clouds, allowing for flexible application deployment and data movement. The paragraph also touches on the benefits of private clouds, such as control and security, and the advantages of public clouds, including cost-effectiveness and elasticity.

05:04

🔗 The Dynamics of Hybrid and Multicloud Deployments

The second paragraph delves into the specifics of hybrid and multicloud deployments. Hybrid clouds facilitate connectivity between an organization's data center and the public cloud, enabling the deployment of applications based on their suitability for either environment. This setup can also be used for burst capacity or backup solutions. Multicloud deployments, increasingly common, involve leveraging multiple public and private cloud services simultaneously. Companies might choose different clouds based on application requirements, developer preferences, or integration with other services. While multicloud offers the advantage of utilizing the best features from different providers, it also introduces increased complexity that can impact security and operational efficiency.

Keywords

💡Cloud Computing

Cloud computing refers to the delivery of computing services, including storage, processing power, databases, networking, software, and analytics, over the internet. It is the central theme of the video, discussing various deployment models that organizations can use to leverage cloud technology. The script mentions cloud computing in the context of different service models and deployment strategies, such as private, public, hybrid, and multicloud.

💡Deployment Models

Deployment models in cloud computing describe the way in which cloud services are distributed and managed. The video script distinguishes between private cloud, public cloud, hybrid cloud, and multicloud as different deployment strategies, each with its own advantages and use cases. For instance, a private cloud is hosted within an organization's own data center, while a public cloud is provided by third-party service providers like AWS, Azure, or Google Cloud Platform.

💡Infrastructure as a Service (IaaS)

IaaS is a cloud computing service model where an organization outsources the infrastructure, such as servers and storage, to a cloud provider. It is mentioned in the script as one of the service models, distinct from deployment models. IaaS allows businesses to have scalable and flexible access to computing resources without investing in hardware.

💡Platform as a Service (PaaS)

PaaS is another cloud service model where a provider delivers a platform allowing customers to develop, run, and manage applications without the complexity of building and maintaining the infrastructure. The script does not explicitly define PaaS but implies its existence as a variation of cloud service models alongside IaaS and SaaS.

💡Software as a Service (SaaS)

SaaS is a software delivery model where software applications are hosted by a provider and made available to customers over the internet. The script mentions SaaS as part of the service models, indicating that it is a way for users to access software without installing it on their own devices, with examples of services that might be used in a cloud environment.

💡Private Cloud

A private cloud is a cloud environment hosted on an organization's own infrastructure, providing computing resources dedicated to that organization. The script explains that it offers complete control over the infrastructure and can be beneficial for security reasons. Examples in the script include VMware's vCloud Suite and Microsoft's Hyper-V as software layers that can be used to create a private cloud.

💡Public Cloud

A public cloud is a cloud computing environment where services are provided over the internet to the general public by third-party providers. The script discusses the public cloud in the context of major providers like AWS, Microsoft Azure, and Google Cloud Platform, highlighting benefits such as variable expenses, economies of scale, and elasticity.

💡Hybrid Cloud

A hybrid cloud combines elements of both private and public clouds, allowing data and applications to be shared between them. The script describes hybrid cloud as a deployment model that connects an organization's data center with a public cloud, offering the flexibility to deploy applications in the most suitable environment and move them as needed.

💡Multicloud

Multicloud refers to the use of multiple cloud computing services from different providers at the same time. The script explains that a multicloud strategy can be adopted when an organization finds it beneficial to leverage the unique strengths of different cloud providers, such as Azure for .NET development or AWS for its broad range of services.

💡Elasticity

Elasticity in cloud computing refers to the ability of a cloud environment to scale resources up or down according to demand. The script mentions elasticity as one of the key benefits of public clouds, allowing businesses to rapidly expand or contract their computing capacity without the limitations of a private cloud.

💡VMware

VMware is a company that provides cloud computing and virtualization software. In the script, VMware is mentioned as one of the vendors offering software layers that can be used to build a private cloud, such as their vCloud Suite, which is an example of a software layer that can be deployed on top of hardware to create cloud services.

💡Red Hat

Red Hat is a software company known for its open-source solutions, including cloud management software. The script refers to Red Hat as one of the vendors that provide software for building private clouds, indicating that their solutions can be part of the infrastructure and software layers necessary for cloud deployment.

💡OpenStack

OpenStack is an open-source cloud computing platform used for building public and private clouds. The script mentions OpenStack as a provider of software layers that can be used to create a private cloud environment, emphasizing its role in offering flexibility and customization options for cloud deployments.

Highlights

Cloud computing deployment models differ from service models, focusing on how infrastructure is deployed.

Private cloud involves deploying infrastructure in your own data center with additional software layers for cloud services.

Vendors like VMware, Microsoft, Red Hat, and OpenStack offer software layers for private cloud deployments.

Public cloud services like AWS, Microsoft Azure, and Google Cloud Platform are utilized by multiple customers and organizations.

Hybrid cloud connects public and private clouds, allowing for deployment of infrastructure both locally and in the public cloud.

Multicloud involves using two or more cloud services simultaneously, providing flexibility but increasing complexity.

Private cloud provides complete control over the infrastructure stack and can be tailored to specific security requirements.

Public cloud offers variable expenses as an operational expenditure, reducing the need for large upfront capital investments.

Economies of scale in public cloud can lead to cost-effectiveness due to the large infrastructure and shared services.

Elasticity in public cloud allows for almost limitless scaling capabilities, adapting to rapid business growth.

Hybrid cloud enables organizations to choose where to deploy applications based on their specific needs and benefits.

Connectivity in hybrid cloud allows for easy movement of data, applications, and services between on-premises and public cloud environments.

Multicloud environments enable companies to leverage the best features of different cloud services, though at the cost of increased complexity.

Examples of private cloud software include VMware vCloud Suite, Microsoft Hyper-V, and cloud management software from Red Hat and OpenStack.

Security can be a benefit of private cloud when full control over every layer of the stack is required, surpassing public cloud security in some cases.

Operational costs, security, and data center considerations should be factored in when comparing private and public cloud costs.

Transcripts

Welcome back. In this lesson, I'm going to cover  cloud computing deployment models. Deployment  

models are different from service models. The  service models are Infrastructure as a Service,  

Platform as a Service, and Software as a Service,  and then some variations of those different  

models. Now we're talking about deployment, so  we're talking about private cloud, public cloud,  

hybrid cloud, and you can see the different  options here. So, private cloud is where you're  

deploying the infrastructure in your own data  center, and then you have to have the relevant  

software layers on top to make it a cloud service,  like the need billing as well as the service  

catalog. So, we can build these a variety of ways.  There's different vendors who offer the software  

layers to sit on top of the hardware, and they  include VMware, Microsoft, Red Hat, and OpenStack.

And then, of course, we've got the public cloud.  That's mostly what we've been concerned with in  

this course. We're talking about AWS, but  other ones are Microsoft Azure and Google  

Cloud Platform. Those are the three biggest.  There are others, of course, as well. Now,  

hybrid cloud is just where we're connecting  our clouds together, public and private,  

and multicloud is where we're using two or  more of these different offerings at a time.

So, let's have a look visually. So, private cloud  is where we've built our infrastructure layer.  

We've got our virtualization clusters, we've  got our storage and backup systems, we've got  

our networking and communication devices, and  potentially some firewalls in there as well.

So, we're going to build and manage this cloud  deployment in our data center, and then we need  

to layer on top of this some capabilities  through software. So, here we have a service  

catalog and a self-service portal, we've got some  configuration management, billing and reporting,  

and multi-tenancy, and there's other components as  well. We need to provide those capabilities on top  

of the infrastructure layer in order to make this  a true private cloud. Benefits here are that we  

get complete control of the entire stack. We can  build it exactly to our requirements. Security  

can be a benefit here. Now, the public cloud  has a huge amount of security built into it;  

in fact, it's very hard to replicate the levels  of security that AWS implements. However,  

in some cases, you might need to have  full control of every layer of the stack,  

and the only way you can do that is in your own  data center. So, there are some situations where  

security is a benefit when we're looking at  private cloud as compared to the public cloud.

So, we've got examples like running  VMware; they have their vCloud Suite.  

We've got Microsoft with Hyper-V and the  various layers of software you can place  

on top, and Red Hat and OpenStack also  provide some cloud management software.

Then we have the public cloud. So, the  public cloud is a cloud service where,  

of course, multiple customers, multiple  organizations, are utilizing this,  

and anyone really can sign up  and start using the public cloud.

Now, if we do that, it becomes a hybrid cloud  if we provide that sort of connectivity at the  

network layer from our office or data center into  the public cloud, especially if we're deploying  

some infrastructure locally in the data center as  well and providing that cross-communication. Now,  

in the public cloud, we can deploy various  services. Of course, there's hundreds of  

different services in the public cloud. In  terms of benefits with the public cloud,  

we have that variable expense, so it's an Opex,  an operational expenditure, rather than a capital  

expenditure or Capex cost. Rather than spending  large quantities of cash building our own systems,  

we're just spending on a monthly basis based on  what we use. And then we have economies of scale,  

so the public cloud can be very cost-effective.  The fact that AWS has created such a large  

infrastructure and created the software  capabilities and the services which so many  

customers can use means that they can lower the  price to you. Doesn't mean it's always cheaper.  

In some cases, using a private cloud can be  cheaper for certain applications and certain  

workloads. But don't forget to factor in all the  operational costs, the security, the data center,  

and all those sorts of aspects as well. And then  we have massive amounts of elasticity in the  

public cloud. It's almost limitless. If you scale  your business really quickly, there's capacity  

there for you. Very hard to replicate that, if  not impossible, in a private cloud situation. So,  

here, of course, we have AWS, Azure, Google  Cloud Platform, and other providers as well.

So, the hybrid is what we saw before,  

but where we're actually connecting  our data center and the cloud.

So, not just the people in the office, but we now  actually have the full data center and whatever  

application we have in our data center on-premises  connected into the public cloud with a connection  

which, again, can be a virtual private network  over the Internet or it can be a private link  

like AWS Direct Connect. So, here we can choose  where to put our applications. Some might make  

sense in the data center, some might make more  sense in the public cloud, and we can leverage  

different services for our various applications  as well, like SaaS services or Platform as a  

Service or IaaS in the cloud. Maybe we even just  use it as a burst capacity or a backup; that's  

what some organizations do. We can also easily  move data and applications and services between  

these different deployment models because we've  set up this connectivity between them as well.

Lastly, we have multicloud. This is becoming a  lot more common. All this really means is that  

a company is finding the need to leverage multiple  public and private cloud services. They might find  

that some applications they prefer to deploy into  Azure. Maybe that's because one of the development  

teams in part of the company are more interested  in .NET and they like to use PowerShell, and  

they're used to the Microsoft stack. Or maybe you  just prefer the identity features and integration  

into Office 365, for example. Other applications  might make more sense in the AWS cloud, so they  

put some in there as well. And then they might  even have multiple private clouds built on VMware,  

OpenStack, and other providers, and they've got  full connectivity between these different clouds.  

That's a multicloud environment, and it means you  get the best of these different clouds. Of course,  

that does increase complexity, so  it's not always the best for things  

like security or operational efficiency,  but it is quite a common scenario today.