Cloud Native Computing Foundation

The Cloud Native Computing Foundation (CNCF) is a Linux Foundation project that was founded in 2015 to help advance container technology[1] and align the tech industry around its evolution.

Cloud Native Computing Foundation (CNCF)
AbbreviationCNCF
Formation2015 (2015)
Type501(c)(6) organization
PurposeBuilding sustainable ecosystems for Cloud Native software
General Manager
Priyanka Sharma
CTO
Chris Aniszczyk
Parent organization
The Linux Foundation
Websitewww.cncf.io

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.[2][3] 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.[4]

Serial entrepreneur Dan Kohn (who also helped launch the Core Infrastructure Initiative) led CNCF as executive director until May 2020.[5][6] The foundation announced Priyanka Sharma, director of Cloud Native Alliances at GitLab, would step into a general manager role in his place.[6] Sharma describes CNCF as "a very impactful organization built by a small group of people but [within] a very large ecosystem" and believes that CNCF is entering into a “second wave" due to increased industry awareness and adoption.[7]

In August 2018 Google announced that it was handing over operational control of Kubernetes to the community.[8] Since its creation, CNCF has launched a number of hosted sub-projects.

In January 2020, the CNCF annual report for the previous year was issued and reflected significant growth to the foundation across membership, event attendance, training, and industry investment. In 2019, CNCF grew by 50% since the previous year with 173 new members and nearly 90% growth in end-users.[9] The report revealed a 78% increase in usage of Kubernetes in production.[10]

CNCF projects

CNCF technology projects are cataloged with a maturity level of Sandbox, Incubated, and Graduated, in ascending order.[11] The defined criteria include rate of adoption, longevity and whether the open source project can be relied upon to build a production-grade product.[12]

CNCF's process brings projects in as incubated projects and then aims to move them through to graduation, which implies a level of process and technology maturity.[13] A graduated project reflects overall maturity; these projects have where it has reached a tipping point in terms of diversity of contribution, community scale/growth, and adoption.[14]

The CNCF Sandbox is a place for early-stage projects, and it was first announced in March 2019. The Sandbox replaces what had originally been called the "inception project level".[15]

In July 2020, Priyanka Sharma stated that CNCF is looking to increase the number of open source projects in the cloud native ecosystem.[16]

Containerd

Containerd is an industry-standard core container runtime. It is currently available as a daemon for Linux and Windows, which can manage the complete container lifecycle of its host system. In 2015, Docker donated the OCI Specification to The Linux Foundation with a reference implementation called runc. Since February 28, 2019 it is an official CNCF project.[17] Its general availability and intention to donate the project to CNCF was announced by Docker in 2017.[18][19]

CoreDNS

CoreDNS is a DNS server that chains plugins. Its graduation was announced in 2019.[20]

Envoy

Originally built at Lyft to move their architecture away from a monolith, Envoy is a high-performance open source edge and service proxy that makes the network transparent to applications. Lyft contributed Envoy to Cloud Native Computing Foundation in September 2017.[21]

etcd

etcd is a distributed key value store aimed at providing a dependable method of storing data across a cluster of machines.[22] It became a CNCF incubating project in 2018 at KubeCon+CloudNativeCon North America[23] in Seattle that year.[24] In Nov 2020, the project became a graduated project.[25]

Fluentd

Fluentd is an open source data collector, allowing the user to "unify the data collection and consumption for a better use and understanding of data."[26] Fluentd joined CNCF in 2016 and became a graduated project in 2019.[27]

Helm

Helm is a package manager that helps developers "easily manage and deploy applications onto the Kubernetes cluster."[28] It joined the incubating level in June 2018 and graduated in April 2020.[29]

Jaeger

Created by Uber Engineering, Jaeger is an open source distributed tracing system inspired by Google Dapper paper and OpenZipkin community. It can be used for tracing microservice-based architectures, including distributed context propagation, distributed transaction monitoring, root cause analysis, service dependency analysis, and performance/latency optimization. The Cloud Native Computing Foundation Technical Oversight Committee voted to accept Jaeger as the 12th hosted project in September 2017[30] and became a graduated project in 2019.[31] In 2020 it became an approved and fully integrated part of the CNCF ecosystem.[32]

Kubernetes

Kubernetes is an open source framework for automating deployment and managing applications in a containerized and clustered environment. "It aims to provide better ways of managing related, distributed components across varied infrastructure."[33] It was originally designed by Google and donated to The Linux Foundation to form the Cloud Native Computing Foundation with Kubernetes as the seed technology.[34] The "large and diverse" community supporting the project has made its staying power more robust than other, older technologies of the same ilk.[35] In January 2020, the CNCF annual report showed significant growth in interest, training, event attendance and investment related to Kubernetes.[36]

Prometheus

A Cloud Native Computing Foundation member project, Prometheus is a cloud monitoring tool sponsored by SoundCloud in early iterations. The tool is currently used by Digital Ocean, Ericsson, CoreOS, Docker, Red Hat and Google.[37] In August 2018, the tool was designated a graduated project by the Cloud Native Computing Foundation.[14]

Rook

Rook is CNCF's first cloud native storage project.[38] It became an incubation level project in 2018[39] and graduated in October 2020.[40]

The Update Framework

The Update Framework (TUF) helps developers to secure new or existing software update systems, which are often found to be vulnerable to many known attacks. TUF addresses this widespread problem by providing a comprehensive, flexible security framework that developers can integrate with any software update system. TUF was CNCF's first security-focused project to and the ninth project overall to graduate from the foundation's hosting program.[41]

Vitess

Vitess is a database clustering system for horizontal scaling of MySQL, first created for internal use by YouTube. It became a CNCF project in 2018 and graduated in November 2019.[42]

Argo

Argo is a collection of open-source Kubernetes native workflows, events, CI and CD projects. It consists of Argo Workflows (container-native Workflow Engine), Argo CD (declarative, GitOps continuous delivery tool), Argo Events (event-based dependency manager), and Argo Rollouts (advanced deployment capabilities such as blue-green, canary, canary analysis, experimentation, and progressive delivery).[43]

CloudEvents

CloudEvents is "a specification (spec) for describing event data in a common way".[44] The project was announced[45] in 2018 and achieved its 1.0 milestone under the auspices of CNCF in October 2019.[46]

CNI

Container Network Interface (CNI), a Cloud Native Computing Foundation project, provides networking for Linux containers.[47]

Contour

Contour is a management server for Envoy that can direct the management of Kubernetes' traffic. Contour also provides routing features that are more advanced than Kubernetes' out-of-the-box Ingress specification. VMWare contributed the project to CNCF in July 2020.[48]

Countour, a VMWare Ingress project, was handed over to CNCF in July 2020 at the mature incubation level due to the

Cortex

Cortex offers horizontally scalable, multi-tenant, long-term storage for Prometheus and works alongside Amazon DynamoDB, Google Bigtable, Cassandra, S3, GCS, and Microsoft Azure. It was introduced into the ecosystem incubator alongside Thanos in August 2020.[49]

CRI-O

CRI-O is an Open Container Initiative (OCI) based "implementation of Kubernetes Container Runtime Interface".[50] CRI-O allows Kubernetes to be container runtime-agnostic.[51] It became an incubating project in 2019.[52]

Falco

Falco is an open source and cloud native runtime security initiative. It is the "de facto Kubernetes threat detection engine".[53] It became an incubating project in January 2020.[54]

gRPC
Main article: gRPC

gRPC is a "modern open source high performance RPC framework that can run in any environment."[55] The project was formed in 2015 when Google decided to open source the next version of its RPC infrastructure ("Stubby").[56] The project has a number of early large industry adopters such as Square, Inc., Netflix, and Cisco.[55]

KubeEdge

In September 2020, CNCF's Technical Oversight Committee (TOC) announced that KubeEdge was accepted as an incubating project. The project was created at Futurewei (a Huawei partner). KubeEdge's goal is to "make edge devices an extension of the cloud".[57]

Kuma

In June 2020, API management platform Kong announced that it would donate its open-source service mesh control plane technology, called Kuma, to CNCF as a sandbox project.[58]

Linkerd

Linkerd is CNCF's fifth member project, providing resilient service mesh for cloud native applications. The tool is based on the JVM (Java Virtual Machine) "for developers to help improve communications among microservices."[59]

Litmus

In July 2020, MayaData donated Litmus, an open source chaos engineering tool that runs natively on Kubernetes, to CNCF as a sandbox-level project.[60]

NATS

NATS consists of a collection of open source messaging technologies that "implements the publish/subscribe, request/reply and distributed queue patterns to help create a performant and secure method of InterProcess Communication (IPC)."[61] It existed independently for a number of years but gained wider reach since becoming a CNCF incubating project.[62]

Notary

Notary is an open source project that enables widespread trust over arbitrary data collections.[63] Notary was released by Docker in 2015 and became a CNCF project in 2017.[64]

Open Policy Agent

Open Policy Agent (OPA) is "an open source general-purpose policy engine and language for cloud infrastructure."[65] It became a CNCF incubating project in April 2019.[66]

OpenTelemetry

OpenTelemetry is an open source observability framework created when CNCF merged the OpenTracing and OpenCensus projects.[67] OpenTracing offers "consistent, expressive, vendor-neutral APIs for popular platforms"[68] while the Google-created OpenCensus project acts as a "collection of language-specific libraries for instrumenting an application, collecting stats (metrics), and exporting data to a supported backend."[69] Under OpenTelemetry, the projects create a "complete telemetry system [that is] suitable for monitoring microservices and other types of modern, distributed systems — and [is] compatible with most major OSS and commercial backends."[70] It is the "second most active" CNCF project.[71] In October 2020, AWS announced the public preview of its distro for OpenTelemetry.[72]

Thanos

Thanos enables global query views and unlimited retention of metrics. It was designed to be easily addable to Prometheus deployments.[49]

TiKV

TikV runs on Rust and "provides a distributed key value database."[73] CNCF's Technical Oversight Committee voted to move the project to the incubation-level in May 2019.[74]

CNCF's Technical Oversight Committee "archives" projects that they deem no longer fitting of active promotion or marketing support by the foundation. The Linux Foundation, however, maintains and owns trademarks for these projects.[75]

CNCF Initiatives

CNCF hosts a number of efforts and initiatives to serve the cloud native community, including:

Events

CNCF hosts the co-located KubeCon and CloudNativeCon conferences, which have become a keystone events for technical users and business professionals seeking to increase Kubernetes and cloud-native knowledge. The events seek to enable collaboration with industry peers and thought leaders.[76] In recent years, the co-located event has expanded to include KubeCon Europe and China.[77] The North America event was moved to an entirely remote model for its 2020 season due to the COVID-19 pandemic.[78]

List of KubeCon + CloudNativeCon
Event Date Place Ref.
CloudNativeCon + KubeCon 2016 Nov 8–9, 2016 Seattle, Washington, United States [79]
CloudNativeCon + KubeCon Europe 2017 March 29–30, 2017 Berlin Congress Center, Berlin, Germany [80]
KubeCon + CloudNativeCon North America 2017 Dec 6–8, 2017 Austin Convention Center, Austin, Texas, United States [81]
KubeCon + CloudNativeCon Europe 2018 May 2–4, 2018 Bella Center, Copenhagen, Denmark [82]
KubeCon + CloudNativeCon China 2018 Nov 14–15, 2018 Shanghai Convention & Exhibition Center of International Sourcing, Shanghai, China [83]
KubeCon + CloudNativeCon North America 2018 Dec 11–13, 2018 Washington State Convention Center, Seattle, Washington, United States [84]
KubeCon + CloudNativeCon Europe 2019 May 20–23, 2019 Fira Gran Via, Barcelona, Spain [85]
KubeCon + CloudNativeCon + Open Source Summit China 2019 Jun 25–26, 2019 Shanghai Expo Centre, Shanghai, China [86]
KubeCon + CloudNativeCon North America 2019 Nov 18–21, 2019 San Diego Convention Center, San Diego, California, United States [87]
KubeCon + CloudNativeCon Europe 2020 March 30-April 2, 2020 Virtual[Note 1] [88]
KubeCon + CloudNativeCon North America 2020 Nov 17–20, 2020 Virtual[Note 2] [89]
KubeCon + CloudNativeCon Europe 2021 May 4–7, 2021 Virtual [90]
KubeCon + CloudNativeCon North America 2021 Oct 12–15, 2021 Los Angeles Convention Center, Los Angeles, California, United States [91]

Diversity scholarships and stance on equity and inclusion

CNCF's Diversity Scholarship program covers the ticket and travel to the KubeCon + CloudNativeCon conference.[92] In 2018, $300,000 in diversity scholarships was raised to enable attendees from diverse and minority backgrounds to make the journey to Seattle for KubeCon and CloudNativeCon.[93]

In August 2020, Priyanka Sharma stated that CNCF stands "in solidarity" with the Black Lives Matter movement. Sharma also stated that she was "personally involved in a project to eradicate racially problematic terminology from code" and that the foundation is "actively working to improve the gender and racial balance inside the cloud native ecosystem" while remaining committed to creating spaces and opportunities for LGBTQIA+, women, Black and Brown people, and differently-abled people, specifically in regards to KubeCon.[94]

Kubernetes certification and education

One path toward becoming a Kubernetes-certified IT professional is the vendor-agnostic Certified Kubernetes Administrator (CKA) accreditation, which is relevant to admins who work across a range of cloud platforms.[95] There are tens of thousands of Certified Kubernetes Administrators (CKA) and Certified Kubernetes Application Developers (CKAD) worldwide.[96]

Kubernetes software conformance and training

CNCF's Certified Kubernetes Conformance Program (KCSP) enables vendors to prove that their product and service conformant with a set of core Kubernetes APIs and are interoperable with other Kubernetes implementations. At the end of 2018, there were 76 firms that had validated their offerings with the Certified Kubernetes Conformance Program.[97]

In 2017, CNCF also helped the Linux Foundation launch a free Kubernetes course on the EdX platform[98] — which has more than 88,000 enrollments.[99] The self-paced course covers the system architecture, the problems Kubernetes solves, and the model it uses to handle containerized deployments and scaling. The course also includes technical instructions on how to deploy a standalone and multi-tier application.[99]

Cloud Native Landscape

CNCF developed a landscape map that shows the full extent of cloud native solutions, many of which fall under their umbrella.[100] The interactive catalog gives an idea of the problems facing engineers and developers deciding which products to use. This interactive catalog was created in response to the proliferation of third-party technologies and resulting decision-fatigue engineers and developers often experience when selecting software tools. In addition to mapping out the relevant and existing cloud native solutions, CNCF's landscape map provides details on the solutions themselves including open source status, contributors, and more.[101]

The landscape map has been the subject of various jokes on twitter due to the CNCF ecosystem's expansiveness and visual complexity.[102]

Cloud Native Trail Map

CNCF's Cloud Native Trail Map outlines the open source cloud native technologies hosted by the Foundation and outlines the recommended path for building a cloud native operation using the projects under its wing. The Cloud Native Trail Map also acts as an interactive and comprehensive guide to cloud technologies.[103]

DevStats

CNCF's DevStats tool provides analysis of GitHub activity for Kubernetes and the other CNCF projects. Dashboards track a multitude of metrics, including the number of contributions, the level of engagement of contributors, how long it takes to get a response after an issue is opened, and which special interest groups (SIGs) are the most responsive.[104]

CNCF Technology Radar

In June 2020, CNCF published the inaugural issue of the CNCF Technology Radar, an "opinionated guide to a set of emerging technologies" in the form of a quarterly paper.[105]

Notes
  1. The originally planned place was RAI Amsterdam Convention Center, Amsterdam.
  2. The originally planned place is Boston Convention & Exhibition Center, Boston, Massachusetts

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