Service Mesh
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Service Mesh
In software architecture, a service mesh is a dedicated infrastructure layer for facilitating service-to-service communications between services or microservices, using a proxy. A dedicated communication layer can provide a number of benefits, such as providing observability into communications, providing secure connections, or automating retries and backoff for failed requests. A service mesh consists of network proxies paired with each service in an application and a set of task management processes. The proxies are called the data plane and the management processes are called the control plane. The data plane intercepts calls between different services and “processes” them; the control plane is the brain of the mesh that coordinates the behavior of proxies and provides APIs for operations and maintenance personnel to manipulate and observe the entire network. The service mesh architecture is implemented by software products like Istio, Linkerd, Consul, AWS App Mesh, Ku ...
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Software Architecture
Software architecture is the fundamental structure of a software system and the discipline of creating such structures and systems. Each structure comprises software elements, relations among them, and properties of both elements and relations. The ''architecture'' of a software system is a metaphor, analogous to the architecture of a building. It functions as a blueprint for the system and the developing project, which project management can later use to extrapolate the tasks necessary to be executed by the teams and people involved. Software architecture is about making fundamental structural choices that are costly to change once implemented. Software architecture choices include specific structural options from possibilities in the design of the software. For example, the systems that controlled the Space Shuttle launch vehicle had the requirement of being very fast and very reliable. Therefore, an appropriate real-time computing language would need to be chosen. Addition ...
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Proxy Server
In computer networking, a proxy server is a server application that acts as an intermediary between a client requesting a resource and the server providing that resource. Instead of connecting directly to a server that can fulfill a request for a resource, such as a file or web page, the client directs the request to the proxy server, which evaluates the request and performs the required network transactions. This serves as a method to simplify or control the complexity of the request, or provide additional benefits such as load balancing, privacy, or security. Proxies were devised to add structure and encapsulation to distributed systems. A proxy server thus functions on behalf of the client when requesting service, potentially masking the true origin of the request to the resource server. Types A proxy server may reside on the user's local computer, or at any point between the user's computer and destination servers on the Internet. A proxy server that passes unmodified r ...
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Microservices
A microservice architecture – a variant of the service-oriented architecture structural style – is an architectural pattern that arranges an application as a collection of loosely-coupled, fine-grained services, communicating through lightweight protocols. One of its goals is that teams can develop and deploy their services independently of others. This is achieved by the reduction of several dependencies in the code base, allowing for developers to evolve their services with limited restrictions from users, and for additional complexity to be hidden from users. As a consequence, organizations are able to develop software with fast growth and size, as well as use off-the-shelf services more easily. Communication requirements are reduced. These benefits come at a cost to maintaining the decoupling. Interfaces need to be designed carefully and treated as a public API. One technique that is used is having multiple interfaces on the same service, or multiple versions of the sam ...
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Envoy (software)
The Cloud Native Computing Foundation (CNCF) is a Linux Foundation project that was founded in 2015 to help advance container technology and align the tech industry around its evolution. It was announced alongside Kubernetes 1.0, an open source container cluster manager, which was contributed to the Linux Foundation by Google as a seed technology. Founding members include Google, CoreOS, Mesosphere, Red Hat, Twitter, Huawei, Intel, Cisco, IBM, Docker, Univa, and VMware. Today, CNCF is supported by over 450 members. In order to establish qualified representatives of the technologies governed by the CNCF, a program was announced at the inaugural CloudNativeDay in Toronto in August, 2016. Dan Kohn (who also helped launch the Core Infrastructure Initiative) led CNCF as executive director until May 2020. The foundation announced Priyanka Sharma, director of Cloud Native Alliances at GitLab, would step into a general manager role in his place. Sharma describes CNCF as "a very impa ...
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Open Service Mesh
Open Service Mesh (OSM) is a free and open source cloud native service mesh developed by Microsoft that runs on Kubernetes. Overview OSM is written in the Go programming language and designed to be a reference implementation of the ''Service Mesh Interface'' (SMI) specification, a standard interface for service meshes on Kubernetes. The software is based on the Envoy proxy server and allows users to uniformly manage, secure, and get out-of-the-box observability features for highly dynamic microservice environments. The source code is licensed under MIT License and available on GitHub. Microsoft plans to donate OSM to the Cloud Native Computing Foundation to ensure that it is community-led and has open governance. See also * Consul (software) * Envoy (software) * Helm (software) * Linkerd The Cloud Native Computing Foundation (CNCF) is a Linux Foundation project that was founded in 2015 to help advance container technology and align the tech industry around its evolution. ...
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Consul (software)
Consul is a free and open-source service networking platform developed by HashiCorp. Overview Consul was initially released in 2014 as a service discovery platform. In addition to service discovery, it now provides a full-featured service mesh for secure service segmentation across any cloud or runtime environment, and distributed key-value storage for application configuration. Registered services and nodes can be queried using a DNS interface or an HTTP interface. Envoy proxy provides security, observability, and resilience for all application traffic. See also * Envoy (software) * Open Service Mesh Open Service Mesh (OSM) is a free and open source cloud native service mesh developed by Microsoft that runs on Kubernetes. Overview OSM is written in the Go programming language and designed to be a reference implementation of the ''Service Me ... References External links * GitHub - hashicorp/consul Network software Free and open-source software {{network-sof ...
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Linkerd
The Cloud Native Computing Foundation (CNCF) is a Linux Foundation project that was founded in 2015 to help advance container technology and align the tech industry around its evolution. It was announced alongside Kubernetes 1.0, an open source container cluster manager, which was contributed to the Linux Foundation by Google as a seed technology. Founding members include Google, CoreOS, Mesosphere, Red Hat, Twitter, Huawei, Intel, Cisco, IBM, Docker, Univa, and VMware. Today, CNCF is supported by over 450 members. In order to establish qualified representatives of the technologies governed by the CNCF, a program was announced at the inaugural CloudNativeDay in Toronto in August, 2016. Dan Kohn (who also helped launch the Core Infrastructure Initiative) led CNCF as executive director until May 2020. The foundation announced Priyanka Sharma, director of Cloud Native Alliances at GitLab, would step into a general manager role in his place. Sharma describes CNCF as "a very impa ...
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Apress
Springer Nature or the Springer Nature Group is a German-British academic publishing company created by the May 2015 merger of Springer Science+Business Media and Holtzbrinck Publishing Group's Nature Publishing Group, Palgrave Macmillan, and Macmillan Education. History The company originates from a number of journals and publishing houses, notably Springer-Verlag, which was founded in 1842 by Julius Springer in Berlin (the grandfather of Bernhard Springer who founded Springer Publishing in 1950 in New York), Nature Publishing Group which has published '' Nature'' since 1869, and Macmillan Education, which goes back to Macmillan Publishers founded in 1843. Springer Nature was formed in 2015 by the merger of Nature Publishing Group, Palgrave Macmillan and Macmillan Education (held by Holtzbrinck Publishing Group) with Springer Science+Business Media (held by BC Partners). Plans for the merger were first announced on 15 January 2015. The transaction was concluded in May 2015 with ...
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Service-oriented Architecture
In software engineering, service-oriented architecture (SOA) is an architectural style that focuses on discrete services instead of a monolithic design. By consequence, it is also applied in the field of software design where services are provided to the other components by application components, through a communication protocol over a network. A service is a discrete unit of functionality that can be accessed remotely and acted upon and updated independently, such as retrieving a credit card statement online. SOA is also intended to be independent of vendors, products and technologies. Service orientation is a way of thinking in terms of services and service-based development and the outcomes of services. A service has four properties according to one of many definitions of SOA: # It logically represents a repeatable business activity with a specified outcome. # It is self-contained. # It is a black box for its consumers, meaning the consumer does not have to be aware of the s ...
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O'Reilly Media
O'Reilly Media (formerly O'Reilly & Associates) is an American learning company established by Tim O'Reilly that publishes books, produces tech conferences, and provides an online learning platform. Its distinctive brand features a woodcut of an animal on many of its book covers. Company Early days The company began in 1978 as a private consulting firm doing technical writing, based in the Cambridge, Massachusetts area. In 1984, it began to retain publishing rights on manuals created for Unix vendors. A few 70-page "Nutshell Handbooks" were well-received, but the focus remained on the consulting business until 1988. After a conference displaying O'Reilly's preliminary Xlib manuals attracted significant attention, the company began increasing production of manuals and books. The original cover art consisted of animal designs developed by Edie Freedman because she thought that Unix program names sounded like "weird animals". Global Network Navigator In 1993 O'Reilly Media creat ...
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Exponential Backoff
Exponential backoff is an algorithm that uses feedback to multiplicatively decrease the rate of some process, in order to gradually find an acceptable rate. These algorithms find usage in a wide range of systems and processes, with radio networks and computer networks being particularly notable. Exponential backoff algorithm An exponential backoff algorithm is a form of closed-loop control system that reduces the rate of a controlled process in response to adverse events. Each time an adverse event is encountered, the rate of the process is reduced by some multiplicative factor. Examples of adverse events include collisions of network traffic, an error response from a service, or an explicit request to reduce the rate (i.e. "back off"). The rate reduction can be modelled as an exponential function: :t = b^c or :f = \frac Here, is the time delay applied between actions, is the multiplicative factor or "base", is the number of adverse events observed, and is the frequen ...
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