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js and add the following code. var todolist = artifacts. require ( ". / todolist. sol " ) ; module. exports = function ( deployer ) { deployer. deploy ( todolist ) ; } ; the next step is to migrate the contract. in the ethreact / directory, run this command. $ truffle migrate figure 11. 49 displays how the contract wil... | openstax_introduction_to_computer_science_-_web | [
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##k ( this. task. value ) } } > < input id = " newtask " ref = { ( input ) = > { this. task = input } } type = " text " classname = " form - control " placeholder = " add task... " required / > < input type = " submit " hidden = { true } / > < / form > < ul id = " tasklist " classname = " list - unstyled " > { this. pr... | openstax_introduction_to_computer_science_-_web | [
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11. 6 • sample ethereum blockchain web 2. 0 / web 3. 0 application 649 ref = { ( input ) = > { this. checkbox = input } } onclick = { ( event ) = > { this. props. togglecompleted ( this. checkbox. name ) } } / > < span classname = " content " > { task. content } < / span > < / label > < / div > ) } ) } < / ul > < ul id... | openstax_introduction_to_computer_science_-_web | [
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##g - 12 d - flex justify - content - center " > { this. state. loading? < div id = " loader " classname = " text - center " > < p classname = " text - center " > loading... < / p > < / div > : < todolist tasks = { this. state. tasks } createtask = { this. createtask } togglecompleted = { this. togglecompleted } / > } ... | openstax_introduction_to_computer_science_-_web | [
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##eum ) { 650 11 • web applications development access for free at openstax. org const web3 = new web3 ( window. ethereum ) ; try { / / request account access if needed await window. ethereum. enable ( ) ; / / accounts now exposed resolve ( web3 ) ; } catch ( error ) { reject ( error ) ; } } / / legacy dapp browsers...... | openstax_introduction_to_computer_science_-_web | [
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/ contracts / todolist. json file and copy the abi portion only and assign it to todo _ list _ abi. export const todo _ list _ address ='0x9a93a9951c1cacf0cecc320fa6ad4e05d55a2d02'export const todo _ list _ abi = [ { " inputs " : [ ], " payable " : false, " statemutability " : " nonpayable ", " type " : " constructor "... | openstax_introduction_to_computer_science_-_web | [
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11. 6 • sample ethereum blockchain web 2. 0 / web 3. 0 application 651 " inputs " : [ { " indexed " : false, " internaltype " : " uint256 ", " name " : " id ", " type " : " uint256 " }, { " indexed " : false, " internaltype " : " bool ", " name " : " completed ", " type " : " bool " } ], " name " : " taskcompleted ", "... | openstax_introduction_to_computer_science_-_web | [
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" name " : " ", " type " : " uint256 " } ], " name " : " tasks ", " outputs " : [ { " internaltype " : " uint256 ", " name " : " id ", " type " : " uint256 " }, { " internaltype " : " string ", " name " : " content ", " type " : " string " }, { " internaltype " : " bool ", " name " : " completed ", " type " : " bool " ... | openstax_introduction_to_computer_science_-_web | [
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11. 6 • sample ethereum blockchain web 2. 0 / web 3. 0 application 653 " statemutability " : " nonpayable ", " type " : " function " }, { " constant " : false, " inputs " : [ { " internaltype " : " uint256 ", " name " : " _ id ", " type " : " uint256 " } ], " name " : " togglecompleted ", " outputs " : [ ], " payable "... | openstax_introduction_to_computer_science_-_web | [
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, accounts, todolistcontract : todolistinstance }, this. runexample ) ; } catch ( error ) { / / catch any errors for any of the above operations. alert ('failed to load web3, accounts, or contract. check console for details. ', ) ; console. error ( error ) ; 654 11 • web applications development access for free at open... | openstax_introduction_to_computer_science_-_web | [
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11. 6 • sample ethereum blockchain web 2. 0 / web 3. 0 application 655 chapter review key terms android studio official ide for android development asynchronous javascript and xml ( ajax ) exchanges small amounts of data between a client and server cascading style sheets ( css ) standard style sheet language used to al... | openstax_introduction_to_computer_science_-_web | [
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digital identifier on a blockchain optimistic rollup protocol that increases transaction output by bundling multiple transactions into batches, which are processed off - chain peer - to - peer ( p2p ) network one in which devices connect and can share data and processing without needing a centralized server postman api... | openstax_introduction_to_computer_science_-_web | [
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11. 1 modern web applications architectures • the web is defined by phases, each denoted by its principal usage — web 1. 0 for reading content, web 2. 0 regarding social interaction, and web 3. 0 as an open, decentralized, and trusted web. • traditional web architectures rendered web pages on the server, with each clie... | openstax_introduction_to_computer_science_-_web | [
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11. 2 sample responsive wad with bootstrap and django • bootstrap is an open - source, responsive web application framework, and django is a python - based web application development framework. both frameworks are highly popular due to their ease of use. • to build the todo application, you must install python, pip, d... | openstax_introduction_to_computer_science_-_web | [
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11. 3 sample responsive wad with bootstrap / react and node • react is a javascript library popular to build user interfaces. • node is a javascript runtime environment that provides developers with the tools to develop web applications, as well as servers, scripts, and command - line tools. • when creating a todo web ... | openstax_introduction_to_computer_science_-_web | [
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11. 4 sample responsive wad with bootstrap / react and django • the todo web application can be updated using bootstrap with react and django. • for this version of the todo web application, react serves as the front end handling the user interface to get and set data via http requests. django serves as the back end. •... | openstax_introduction_to_computer_science_-_web | [
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11. 5 sample native wad with react native and node or django • a todo application for mobile devices can be developed using react native and node. • react native is an open - source javascript framework used to build user interfaces and native applications for mobile devices. • to build a todo application for mobile de... | openstax_introduction_to_computer_science_-_web | [
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11. 6 sample ethereum blockchain web 2. 0 / web 3. 0 application • a simple todo application can be created using react with web 3. 0 powered by ethereum smart contracts on the blockchain. • the ethereum blockchain creates a secure peer - to - peer network through the use of smart contracts, which are secure digital ag... | openstax_introduction_to_computer_science_-_web | [
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. software designed to support development and execution targeted toward a specific platform ( e. g., android, ios ) b. program for writing assembly language for a given device c. software tools created by a company that also creates the targeted device d. software designed for responsive web 2. 0 spa applications 4. l... | openstax_introduction_to_computer_science_-_web | [
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##trap and django, what should you do to define the todo model? 11 • chapter review 659 a. create serializers b. use the default django admin interface to perform crud operations on the database c. enter category names and click the post button d. install bootstrap 12. why is the view function important? a. the view fu... | openstax_introduction_to_computer_science_-_web | [
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given endpoint. c. axios runs the mongodb database. d. axios is used by the react application to fetch data by making requests to a given endpoint. 17. when using bootstrap with react and django to update the todo web application, what will the react application use to fetch data by making requests to a given endpoint?... | openstax_introduction_to_computer_science_-_web | [
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db 23. what are smart contracts? a. agreements between bootstrap and the ethereum blockchain to share information b. secure digital agreements that enable applications to be used on mobile devices, as well as computers c. agreements between react and node to share information d. secure digital agreements that enable us... | openstax_introduction_to_computer_science_-_web | [
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##ango web application. 6. explain the difference between the delete and put buttons. 7. explain the difference between react and node. 8. explain how react and node are used to create a todo web application. 9. when updating the todo web application using bootstrap with react and django, explain how react and django a... | openstax_introduction_to_computer_science_-_web | [
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mentioned in this timeline ( https : / / openstax. org / r / 76webframetime ) according to the web application development chronology covered earlier in this subsection. 2. perform some research on the internet and identify the top three web application frameworks according to popularity and their relative pros and con... | openstax_introduction_to_computer_science_-_web | [
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using bootstrap and django, why is the view function vital for the todo web application? 5. another technology that is often paired with postman is openapi ’ s swagger ui. research what openapi ’ s swagger can do and how it can be paired with postman. 6. research how we can automate api testing with postman. explain wh... | openstax_introduction_to_computer_science_-_web | [
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a collection of web applications with a scalable back - end application that will feature multiple front - end applications. how can we create automated testing that will scale our back - end application? 11 • chapter review 663 4. consider our start - up company and our goal of growth. our new clients say that they wi... | openstax_introduction_to_computer_science_-_web | [
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12. 3 example paas and faas deployments of cloud - native applications introduction organizations are facing more pressure today to retain customers who depend on updated or new business capabilities. this requires organizations to deliver software applications securely, more rapidly, and continuously. for organization... | openstax_introduction_to_computer_science_-_web | [
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., advanced robotics, autonomous cars, and drones, or other autonomous systems ). organizations in many industries rely on the use of cloud - native applications to conduct business daily. | openstax_introduction_to_computer_science_-_web | [
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12. 1 introduction to cloud - native applications learning objectives by the end of this section, you will be able to : • analyze the differences between monolithic and microservices architectures • understand the architecture of cloud - native applications • learn the features of cloud - native applications • relate t... | openstax_introduction_to_computer_science_-_web | [
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##services architectures that structure applications as coordinated collections of small, independent services that are self - contained and are deployed in software containers managed by a container orchestrator. both cloud - based and cloud - native applications can run on public, private, or hybrid cloud infrastruct... | openstax_introduction_to_computer_science_-_web | [
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3 monolithic architectures consist of highly dependent components and do not scale well compared to microservices architectures with self - contained components that are more easily scalable. ( attribution : copyright rice university, openstax, under cc by 4. 0 license ) as an example of a monolith, consider an applica... | openstax_introduction_to_computer_science_-_web | [
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12. 1 • introduction to cloud - native applications 667 online. an application designed using a monolith architecture is shown in figure 12. 4. the application includes a user interface. the business logic layer includes various components such as an inventory system for the product catalog, a basket service to order p... | openstax_introduction_to_computer_science_-_web | [
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users may take a lot of time. before this gets done, the holiday season may have ended already and the version of the application that was available was only able to support a limited number of transactions. the second instance of the application is useless at this point despite the effort it took to deploy it. a scale... | openstax_introduction_to_computer_science_-_web | [
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12. 1 • introduction to cloud - native applications 669 figure 12. 6 an application designed using a microservices architecture. ( attribution : copyright rice university, openstax, under cc by 4. 0 license ) components in a microservices architecture are independent of each other. individual microservices can be chang... | openstax_introduction_to_computer_science_-_web | [
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contrast, a microservices - centric application places individual capabilities in separate microservices that are deployed via containers and communicate via apis. individual capabilities are programming language and framework independent. they are easier to grow and scale independently. link to learning the article mi... | openstax_introduction_to_computer_science_-_web | [
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12. 1 • introduction to cloud - native applications 671 figure 12. 8 components in a monolith architecture are accessed differently compared to components in a microservices architecture. ( attribution : copyright rice university, openstax, under cc by 4. 0 license ) as noted earlier, services used by microservices - c... | openstax_introduction_to_computer_science_-_web | [
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of self - contained components and implement individual business capabilities. the service - oriented architectural style, a well - established style of software design, commands the same approach. a service - oriented architecture ( soa ) requires that conforming applications be structured as discrete, reusable, and i... | openstax_introduction_to_computer_science_-_web | [
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##s because they can communicate through programming language - agnostic apis. advancements in containerization technologies make it possible to deploy, upgrade, scale, and restart microservices independently, better controlling their life cycles. in case a microservice fails, the rest of the application is unaffected.... | openstax_introduction_to_computer_science_-_web | [
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12. 1 • introduction to cloud - native applications 673 one example of a microservices design pattern is the backend for frontend ( bff ) microservice design pattern. 4 this design pattern involves creating dedicated back - end services tailored to the specific needs of front - end clients. the goal of this pattern is ... | openstax_introduction_to_computer_science_-_web | [
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to shifting to a microservices architecture. in addition to complexity and efficiency being two major challenges of a microservices - based architecture, the following eight challenge categories have been identified. building microservices some microservices may need to access other microservices to provide certain app... | openstax_introduction_to_computer_science_-_web | [
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to address this is to build in conditional logic that either appends the version number or tracks versioning, which can become difficult to manage. alternatively, multiple live versions can be provided for different clients, but they can also become difficult to manage. testing microservices testing microservices can b... | openstax_introduction_to_computer_science_-_web | [
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12. 1 • introduction to cloud - native applications 675 figure 12. 10 a microservices architecture is configured to use log aggregation and distributed tracing, which are typically used in a microservices - based distributed system. log aggregation refers to storing various levels of warning and errors for a combined s... | openstax_introduction_to_computer_science_-_web | [
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##s an order in which microservices need to be deployed. it also requires more investment in automation to practically manage them and help ensure that the whole microservices - based application is 5 for information about helios, see https : / / snyk. io / blog / welcoming - helios - to - snyk / 6 for information abou... | openstax_introduction_to_computer_science_-_web | [
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cloud infrastructure, shown in figure 12. 11, is provided by a cloud computing platform. the cloud computing platform also provides a scheduling and orchestration service to manage the containers that the cloud - native application microservices are deployed in. microservices used in a cloud - native application typica... | openstax_introduction_to_computer_science_-_web | [
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12. 1 • introduction to cloud - native applications 677 finally, the cloud - native application and runtime environment is where the cloud - native application operates. a cloud - native architecture leverages a commoditized microservices architecture. in this architecture, business capabilities are implemented as clou... | openstax_introduction_to_computer_science_-_web | [
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one of the microservices stores its state in a distributed redis cache. an api gateway is used to route traffic between client apps and microservices. most important, this cloud - native application takes full advantage of the scalability and resiliency features of modern cloud platforms. industry spotlight cloud - nat... | openstax_introduction_to_computer_science_-_web | [
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reduces the time and cost associated with having to scale another instance of the entire application. typically, scaling is achieved by containerizing microservices and managing the containers using a container management framework ( e. g., k8s ) provided by a cloud platform. another alternative is to leverage function... | openstax_introduction_to_computer_science_-_web | [
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12. 1 • introduction to cloud - native applications 679 container - based framework a container is a standardized unit of software that logically isolates an application, enabling it to run independently of physical resources. the packaging of a standardized unit of software that isolates an application, enabling it to... | openstax_introduction_to_computer_science_-_web | [
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dependencies on top of the required “ layer ” of binaries and libraries of the operating system, which establishes a parent - child relationship between image layers. figure 12. 14 shows the process for building an image. for example, at the root of the parent - child tree is a layer that provides a formatted file syst... | openstax_introduction_to_computer_science_-_web | [
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images. this is an important initiative for containers to be able to “ build once and run anywhere. ” api - based framework microservices that rely on each other communicate using well - defined apis. these apis help configure the infrastructure layers to facilitate resource sharing across them. apis connect microservi... | openstax_introduction_to_computer_science_-_web | [
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12. 1 • introduction to cloud - native applications 681 figure 12. 15 container orchestration is used to manage microservices in a cloud - native application. ( attribution : copyright rice university, openstax, under cc by 4. 0 license ) as the microservices ’ consumption of the computing resources increases, addition... | openstax_introduction_to_computer_science_-_web | [
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- checking of microservices in a scaled cloud - native application. ( attribution : copyright rice university, openstax, under cc by 4. 0 license ) agile devops and automation using ci / cd devops is a methodology that combines agile software development and it operations to deliver software faster and of higher qualit... | openstax_introduction_to_computer_science_-_web | [
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integration process. this improves team communication and leads to better software quality. the continuous delivery part goes a step further and automates the deployment stage as well. during this phase, the application is deployed to selected | openstax_introduction_to_computer_science_-_web | [
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12. 1 • introduction to cloud - native applications 683 infrastructure environments. packages built during ci are deployed into multiple environments ( e. g., development, staging ). the application build undergoes integration and performance tests. finally, the application is deployed into production and made availabl... | openstax_introduction_to_computer_science_-_web | [
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that run on a host, saving time, resources, and money. • scalability : each microservice is logically isolated and can scale independently without downtime. microservices can scale up or down by allocating more or fewer resources to in - demand services in response to a change in user traffic. if one microservice is ch... | openstax_introduction_to_computer_science_-_web | [
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throttling high - volume users, and applying circuit breakers to prevent an application from repeatedly trying an operation that is likely to fail. testing for resiliency requires testing how the end - to - end workload performs under failure conditions that only occur intermittently — for example, injecting failures b... | openstax_introduction_to_computer_science_-_web | [
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the application ’ s performance, compliance through the application life cycle at a faster pace, and higher quality. here are the five essential best practices for cloud - native application design : 1. automation : a development team should automate as much of the cloud - native application | openstax_introduction_to_computer_science_-_web | [
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12. 1 • introduction to cloud - native applications 685 development life cycle as possible. automation helps reduce human errors and increase team productivity. it also allows for the consistent provisioning of cloud application environments across multiple cloud vendors. with automation, infrastructure as code ( iac )... | openstax_introduction_to_computer_science_-_web | [
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cloud - native applications are used all over the world, specific internationalization ( i18n ) and localization ( l10n ) requirements must be observed to facilitate the creation of applications that people can use. because microservices are part of an application ’ s back end, they typically return keywords that can b... | openstax_introduction_to_computer_science_-_web | [
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instructions for building a docker image. a docker image may be based on another image with some additional customization. docker images are a collection of immutable layers where each instruction in a dockerfile creates a layer in the image. once built, docker images become immutable templates for creating docker cont... | openstax_introduction_to_computer_science_-_web | [
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12. 1 • introduction to cloud - native applications 687 under cc by 4. 0 license ) the workload refers to an application being run on kubernetes. the kubernetes master node includes the control plane, which has several important components, including a service controller, node controller, endpoint controller, replicati... | openstax_introduction_to_computer_science_-_web | [
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are tightly coupled and need to share resources. pods are ephemeral, meaning they are nonpermanent resources. kubernetes manages the pods rather than the containers directly. the api server on the kubernetes master node communicates with the worker node to deploy the container in a pod and start it up. replicas of pods... | openstax_introduction_to_computer_science_-_web | [
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- based git repository as well as several devops features such as ci / cd, security, and application development tools. the ci / cd tool can be used to automate testing, deployment, and monitoring applications. gitlab can also be used for security analysis, static analysis, and unit testing. github is a cloud - based d... | openstax_introduction_to_computer_science_-_web | [
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the code runs properly, applying security scanning so that the application that goes into production is audited and compliant with security policies, and deploying the application to production environments that may include several cluster environments that can run and scale in production. node node is an open - source... | openstax_introduction_to_computer_science_-_web | [
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12. 1 • introduction to cloud - native applications 689 cloud. it has been observed that companies that adopt a cloud - native approach can achieve higher levels of innovation, agility, and scalability. it also offers many benefits such as : • reducing it overhead and management costs by providing a streamlined softwar... | openstax_introduction_to_computer_science_-_web | [
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12. 2 cloud - based and cloud - native applications deployment technologies learning objectives by the end of this section, you will be able to : • understand cloud deployment technology • relate to cloud deployment technology options • explain cloud deployment technology use cases and implementation • select cloud dep... | openstax_introduction_to_computer_science_-_web | [
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architectural considerations. first, the deployment models in the cloud are evaluated, offering choices for where service models are deployed, such as public, hybrid, community, or private cloud environments. second, the service model options are assessed to determine the level and type of services, including infrastru... | openstax_introduction_to_computer_science_-_web | [
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12. 2 • cloud - based and cloud - native applications deployment technologies 691 cloud service models the three cloud service models — iaas, paas, and saas — define a combination of information technology resources ( e. g., compute servers, storage, memory, middleware ) offered by a cloud provider and are not mutually... | openstax_introduction_to_computer_science_-_web | [
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speed graphics processor ( gpu ) or high - performance computing ( hpc ). the storage component could support different storage needs such as object storage, block storage, or file storage. finally, the network component allows for the compute and storage components to communicate. iaas resources are multitenant and ar... | openstax_introduction_to_computer_science_-_web | [
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application up and running quickly. paas is cost effective in that customers don ’ t have to bear the cost to manage the runtime environment for their applications. paas cloud providers generally provide tools such as devops and collaboration tools, as well as api marketplaces as services that could easily be integrate... | openstax_introduction_to_computer_science_-_web | [
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12. 2 • cloud - based and cloud - native applications deployment technologies 693 figure 12. 23 saas resources are managed by a cloud provider, like paas resources, but they are subscription based and include application and data. ( attribution : copyright rice university, openstax, under cc by 4. 0 license ) unlike ia... | openstax_introduction_to_computer_science_-_web | [
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for free at openstax. org figure 12. 24 complexity and level of investment effort decrease as level of abstraction from customer increases depending on the solution chosen. ( attribution : copyright rice university, openstax, under cc by 4. 0 license ) on - premises and iaas solutions offer the greatest level of flexib... | openstax_introduction_to_computer_science_-_web | [
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to major industry groups. | openstax_introduction_to_computer_science_-_web | [
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12. 2 • cloud - based and cloud - native applications deployment technologies 695 figure 12. 25 a public cloud deployment model consists of resources accessible to all users. ( attribution : copyright rice university, openstax, under cc by 4. 0 license ) private cloud model a private cloud is a cloud deployment model w... | openstax_introduction_to_computer_science_-_web | [
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a cloud service provider ’ s resources are provisioned and dedicated to a community of organizations or government entities. figure 12. 27 a community cloud deployment model consists of dedicated resources limiting access to a community. ( attribution : copyright rice university, openstax, under cc by 4. 0 license ) hy... | openstax_introduction_to_computer_science_-_web | [
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12. 2 • cloud - based and cloud - native applications deployment technologies 697 figure 12. 28 a hybrid cloud deployment model combines two or more cloud deployment models. ( attribution : copyright rice university, openstax, under cc by 4. 0 license ) cloud deployment technology options cloud deployment technologies ... | openstax_introduction_to_computer_science_-_web | [
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##ikernels, and containers are made available in an iaas cloud service model. these deployment options offer a level of infrastructure control to address specific performance requirements, 698 12 • cloud - native applications development access for free at openstax. org compliance considerations, and legacy dependencie... | openstax_introduction_to_computer_science_-_web | [
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system of a virtual server instance ( vsi ). the hypervisor, also referred to as a virtual machine monitor ( vmm ), is a software layer that lies between the physical hardware and the vsis that run on top of it. the hypervisor allows for the scheduling of multiple vsis with these divided resources. thus, multiple virtu... | openstax_introduction_to_computer_science_-_web | [
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12. 2 • cloud - based and cloud - native applications deployment technologies 699 figure 12. 31 virtualization of compute resources via hypervisors is used to schedule vsis. ( attribution : copyright rice university, openstax, under cc by 4. 0 license ) virtualization via hypervisors makes multitenancy of vsis possible... | openstax_introduction_to_computer_science_-_web | [
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on a server ’ s hypervisor or on bare metal. unikernels are considered more secure, compared to other cloud deployment technology options, due to their smaller attack surface. 700 12 • cloud - native applications development access for free at openstax. org figure 12. 33 multiple unikernels are built as specialized ima... | openstax_introduction_to_computer_science_-_web | [
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, containers share the same operating system and kernel of the host server. it appears as if each container runs on its own operating system and contains all the required binaries, libraries, and application code that is needed to run the application deployed in it. this is possible because containers run as isolated p... | openstax_introduction_to_computer_science_-_web | [
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12. 2 • cloud - based and cloud - native applications deployment technologies 701 control groups, on the other hand, monitor and manage shared resources controlled by the containers, which helps significantly reduce the number of compute instances needed to run applications. container deployment options include buildin... | openstax_introduction_to_computer_science_-_web | [
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to quicky deploy and launch their applications, significantly reducing infrastructure and middleware overhead for developers. this allows developers to focus on developing and deploying their applications while the burden of managing the infrastructure, back - end services, and any other system administrative services ... | openstax_introduction_to_computer_science_-_web | [
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when developers refer to serverless, they are talking about a faas service model. function as a service ( faas ) is a compute platform for serverless where developers can run functions that are single units of deployment of the code, which is run by events. they are typically invoked via an api gateway. an api gateway ... | openstax_introduction_to_computer_science_-_web | [
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12. 2 • cloud - based and cloud - native applications deployment technologies 703 the cloud service providers. faas / serverless solutions are inherently highly available. faas / serverless solutions can be deployed across multiple availability zones in different geographical regions. cloud service providers manage fau... | openstax_introduction_to_computer_science_-_web | [
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. paas provides scalability options that are more advantageous compared to deployments on bare metal servers. however, developers still must consider how to construct and scale a paas platform. they must forecast resource capacity and configure paas - hosted applications to scale up and down based on demand. serverless... | openstax_introduction_to_computer_science_-_web | [
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that can also exploit the pricing model of faas / serverless solutions. more generally, serverless architecture is ideal for asynchronous, stateless applications that can be started instantaneously. likewise, serverless is a good fit for use cases that see infrequent, unpredictable surges in demand, that are high - vol... | openstax_introduction_to_computer_science_-_web | [
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systems, can you elaborate on the suitability of containers / caas as compared to paas or faas / serverless for these particular systems? cloud deployment technology use cases and implementation there are various types of situations that prompt the use of cloud deployment technologies. the corresponding use cases and t... | openstax_introduction_to_computer_science_-_web | [
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12. 2 • cloud - based and cloud - native applications deployment technologies 705 metal servers can be used for the resource - intensive components, whereas vms, containers, and other cloud deployment technologies deliver application services. bare metal servers are also an option for legacy applications that may not b... | openstax_introduction_to_computer_science_-_web | [
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containerized to enable execution. however, there are limitations to this approach, and it can be very challenging to get such applications up and running in a container. the application dependencies must be assessed to ensure containerization is a viable option. legacy applications that can be modernized and migrated ... | openstax_introduction_to_computer_science_-_web | [
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unikernels, thus, are a good choice for the need of an immutable infrastructure. 706 12 • cloud - native applications development access for free at openstax. org paas deployment technology paas is used to deploy modern, cloud - native application architectures. paas provides a complete cloud platform that includes har... | openstax_introduction_to_computer_science_-_web | [
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consider when implementing services using the cloud deployment technologies discussed earlier. cloud customers who adopt automation will increase deployment speeds while lowering costs. with the growth of cloud environments, customers must manage increasingly complex environments. there are several tools that can be us... | openstax_introduction_to_computer_science_-_web | [
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12. 2 • cloud - based and cloud - native applications deployment technologies 707 global issues in technology devops across the globe while cloud - native applications are deployed all over the world, they involve the use of devops methods and tools that are mostly developed in the united states or europe. for example,... | openstax_introduction_to_computer_science_-_web | [
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system, middleware, and runtime environments for applications. as such, available paas tools are used for automating tasks, such as streamlining code integration between systems as well as managing application build and deployment processes. a tool discussed earlier, tanzu, provides a major improvement over traditional... | openstax_introduction_to_computer_science_-_web | [
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, the steps to select the appropriate cloud deployment technologies include : • assess how well the cloud deployment technology options meet the business needs. • understand infrastructure and workload / service requirements. • select cloud deployment technologies that satisfy the application requirements and provide t... | openstax_introduction_to_computer_science_-_web | [
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cloud deployment technologies that are most appropriate to meet their business needs. the cloud deployment technologies selected must adhere to the service levels required to satisfy business needs. these options may change over time as the range of available cloud deployment technology options continues to evolve. pru... | openstax_introduction_to_computer_science_-_web | [
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12. 2 • cloud - based and cloud - native applications deployment technologies 709 technologies to continuously meet business needs. applications composed of multiple cloud services a cloud mashup is a technique for seamlessly combining multiple cloud applications from several sources into a single integrated solution. ... | openstax_introduction_to_computer_science_-_web | [
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authorization services, and google ’ s mapreduce services ). many people depend on a driving route recommendation service in gps systems today. it was also mentioned that the selection of cloud deployment technologies directly impacts the overall quality of the cloud mashup as the accuracy of the recommended routes and... | openstax_introduction_to_computer_science_-_web | [
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12. 3 example paas and faas deployments of cloud - native applications learning objectives by the end of this section, you will be able to : • understand how to deploy a cloud - native application on a paas platform • understand how to deploy a cloud - native application using vmware tanzu • understand how to deploy fa... | openstax_introduction_to_computer_science_-_web | [
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