Cloud Services

Cloud Services. :poeI+. 09 March 2023.

What Are Cloud Services?. Cloud services are infrastructure, platforms, or software that are hosted by third-party providers and made available to users through the internet..

What is cloud computing?. The delivery of computing services—including servers, storage, databases, networking, software, analytics, and intelligence—over the Internet or short -“the cloud”. Offer flexible cost-optimized resources You typically pay only for cloud services you use, helping lower your operating costs, run your infrastructure more efficiently and scale as your business needs change. The data can be anything such as files, images, documents, audio, video, and more..

History of the cloud. Professor Ramnath Chellapa mentions 'Cloud' White House installed its first computers IBM virtualised operating systems Queen Elizabeth II sends an email Late Professor John I McCarthy suggesteq ARPANET • computing would launched be sold as a utility Storage tapes with capacity of 200 mega- bytes launched World Wide Web launched; 1 million computers connected to the Internet Network Operating Systems launched 1980 Melting Pot Néarly 100,000 computers connected to the Internet 1960 1965 Foundation Era 1970 1975 1985 1990 'Cloud' in an internal document fin Compaq 1995 Early Mentions Amazon Web Service (AWS) launches public Cloud 2000 Inception 2005.

Cloud Services Overview. Cloud services facilitate the flow of user data from front-end clients (e.g. users’ servers, tablets, desktops, laptops—anything on the users’ ends), through the internet, to the provider’s systems, and back. What kind of tools (hardware or software) do we need access cloud services?.

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Cloud types. Multiclouds are IT systems that includes more than 1 cloud—public or private—that may or may not be networked together..

Cloud service types. All infrastructure, platforms, software, or technologies that users access through the internet without requiring additional software downloads can be considered cloud computing services—including the following as-a-Service solutions . Infrastructure-as-a-Service (IaaS) provides users with compute, networking, and storage resources. Platforms-as-a-Service (PaaS) provides users with a platform on which applications can run, as well as all the IT infrastructure required for it to run. Software-as-a-Service (SaaS) provides users with—essentially—a cloud application, the platform on which it runs, and the platform’s underlying infrastructure. Function-as-a-Service ( FaaS ), an event-driven execution model, lets developers build, run, and manage app packages as functions without maintaining the infrastructure..

Cloud service types. On Premise Functions Application Runtime Operating system Virtualisation Networking Storage Hardware Functions Application Runtime Operating system Virtualisation Networking Storage Hardware PaaS Functions Application Runtime Operating system Virtualisation Networking Storage Hardware FaaS Functions Application Runtime Operating system Virtualisation Networking Storage Hardware SaaS Functions Application Runtime Operating system Virtualisation Networking Legend Provider managed Storage Customer managed On Premise Hardware Cloud Computing.

How do cloud services work?. Cloud infrastructure When supplying users with a cloud infrastructure, cloud services providers detach computing capabilities from hardware components, such as separating: Processing power from central processing units (CPUs) Active memory from random access memory (RAM) chips Graphics processing from the graphics processing units (GPUs) Data storage availability from datacenters or hard drives This abstraction is typically accomplished through virtualization and virtual machines. Once separated, the storage, compute, and networking components are provided to users through the internet as infrastructure—or IaaS. This kind of cloud service has led to the rise of cloud storage, which stores big data as part of the Internet of Things (IOT)..

How do cloud services work?. Cloud platforms. Cloud service providers can also use their hardware resources to create cloud platforms, which are online environments where users can develop code or run apps. Building a cloud platform requires more than just abstracting a computer’s capabilities from its hardware components—like when providing cloud infrastructure. Providing a cloud platform requires additional levels of development to incorporate other technologies User experience design (UX) is also an important consideration in order to create a navigable online experience. Cloud platforms are a type of PaaS..

How do cloud services work?. Cloud software. This requires the highest development investment because the cloud provider is literally offering an online app to customers. Cloud software can be provided using a cloud-native approach, which is an application architecture combining small, independent, and loosely coupled microservices..

Serverless. Serverless computing is a cloud computing execution model in which the cloud provider allocates machine resources on demand, taking care of the servers on behalf of their customers. "Serverless" is a misnomer in the sense that servers are still used by cloud service providers to execute code for developers. Developers of serverless applications are not concerned with capacity planning, configuration, management, maintenance, fault tolerance, or scaling of containers, VMs, or physical servers..

Cloud Products. Amazon: Amazon Athena, Amazon CloudSearch , Amazon ElasticSerach Service, Amazon Redshift, Amazon Kinesis… Azure: Azure Analysis Services, Azure Data Explorer, Azure Data Lake Storage….

Cloud Products. Amazon: Amazon Elastic Container Registry, Amazon Elastic Container Service (ECS), Amazon Elastic Kubernetes Service (EKS)... Azure: API Apps, Azure Functions, Azure Kubernetes Service (AKS), Web Apps....

Cloud Products. Amazon: AWS Amplify, Amazon API Gateway, Amazon Location Service (Preview)… Azure: API Management, App Service, Azure Maps, Notification Hubs….

Pros of Cloud Computing. Agility The cloud works in a distributed computing environment . It shares resources among users and works very fast. High availability and reliability The availability of servers is high and more reliable because the chances of infrastructure failure are minimum . High Scalability Cloud offers “on-demand” provisioning of resources on a large scale , without having engineers for peak loads. Multi-Sharing With the help of cloud computing, multiple users and applications can work more efficiently with cost reductions by sharing common infrastructure. Device and Location Independence Cloud computing enables the users to access systems using a web browser regardless of their location or what device they use e.g. PC, mobile phone, etc. Maintenance of cloud computing applications is easier, since they do not need to be installed on each user’s computer and can be accessed from different places.

Cloud features and characteristics Automation and Orchestration Application migration VM images/instances Configuration management Cost Management Cloud instance right sizing User chargeback and billing management ærformance Monitoring Storage Networks Applications Compute Governance and compliance Risk assessment/ threat analysis Audits Service and resource govemance Security IAM Encryption Mobile/endpoint security.

Disadvantages Of Cloud Computing. Risk of data confidentiality There is always a risk that user data can be accessed by other people. So data and cloud protection must be good because if it won’t be dangerous for data confidentiality. Compliance Which refers to the risk of a level compliance deviation from the provider against the regulations applied by the user. The level of security Secrecy and security are among the most doubtful things in cloud computing. By using a cloud computing system means we are fully entrusted with the security and confidentiality of data to companies that provide cloud computing servers..

Availability regions and zones. Availability regions are the geographic locations of the cloud data centers. Different regions offer different service qualities in terms of latency, solutions portfolios, and costs. For the large providers, their availability regions exist across the globe. Availability zone refers to an isolated data center within a single region. Each availability zone includes multiple data centers, and no single data center is shared between multiple availability zones..

What is Docker?. Docker is a software platform that simplifies the process of building, running, managing and distributing applications. It does this by virtualizing the operating system of the computer on which it is installed and running..

The problem. Let’s say you have three different Python-based applications that you plan to host on a single server (which could either be a physical or a virtual machine)..

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Advantages and Disadvantages of using Docker. Advantages Docker supports multiple applications with different application requirements and dependencies, to be hosted together on the same host, if they have the same operating system requirements . Storage Optimized . Robustness . Reduces costs. Disa dvantages Applications with different operating system requirements cannot be hosted together on the same Docker Host..

Core Components of Docker. 1*MYX0ClbWoitxS0RNUVvj8A.

Advantages and Disadvantages of using Docker. Advantages Docker supports multiple applications with different application requirements and dependencies, to be hosted together on the same host, if they have the same operating system requirements . Storage Optimized . Robustness . Reduces costs. Disa dvantages Applications with different operating system requirements cannot be hosted together on the same Docker Host..

What is Kubernetes?. K8s is a production-grade open-source container orchestration tool developed by Google to help you manage the containerized/ dockerized applications supporting multiple deployment environments like On-premise, cloud, or virtual machines..

Diagram Description automatically generated. Fundamental Architecture Of Kubernetes Cluster.

Worker Node In K8s Cluster. Worker Node Key Components Node 1 Containers kube-proxy Container Runtime kubelet System Services.

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kube-apiserver. API Server in Master Node Entry point to the K8s cluster Validates your worker node level resource access request (9) Node 2 Update Query Api Server Master i Some request API Server validates request ..other processes.. Kube-apiserver.