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The API server serves the Kubernetes API using JSON over HTTP, which provides both the internal and external interface to Kubernetes. [ 32 ] [ 36 ] The API server processes, validates REST requests, and updates the state of the API objects in etcd, thereby allowing clients to configure workloads and containers across worker nodes. [ 37 ]
Helm is a package manager for Kubernetes. [ 1 ] [ 2 ] It uses 'charts' as its package format , which is based on YAML . Helm was accepted to Cloud Native Computing Foundation on June 1, 2018 at the Incubating maturity level and then moved to the Graduated maturity level on May 1, 2020.
The first public beta version of Docker Compose (version 0.0.1) was released on December 21, 2013. [33] The first production-ready version (1.0) was made available on October 16, 2014. [34] Docker Swarm provides native clustering functionality for Docker containers, which turns a group of Docker engines into a single virtual Docker engine. [35]
Teleport is an open-source tool that provides zero trust access to servers and cloud applications using SSH, Kubernetes and HTTPS. [2] [3] It can eliminate the need for VPNs by providing a single gateway to access computing infrastructure via SSH, Kubernetes clusters, and cloud applications via a built-in proxy.
The blue environment hosts the current stable version of the application, while the green environment holds the new version. Once the green environment is fully tested, production traffic is routed to it, and the blue environment is deprecated until the next deployment cycle.
Communication with etcd is performed through an exposed REST-based API, which internally uses JSON on top of HTTP; the API may be used directly (through curl or wget, for example), or indirectly through etcdctl, which is a specialized command-line utility also supplied by CoreOS. [11] [14] [51] [52] [53] etcd is also used in Kubernetes software.
OpenNebula is an open source cloud computing platform for managing heterogeneous data center, public cloud and edge computing infrastructure resources. OpenNebula manages on-premises and remote virtual infrastructure to build private, public, or hybrid implementations of infrastructure as a service (IaaS) and multi-tenant Kubernetes deployments.
In that case, the upper layers of the ETSI NFV MANO architecture (i.e. the NFVO and VNFM) cooperate with a container infrastructure service management (CISM) function [5] that is typically implemented using cloud-native orchestration solutions (e.g. Kubernetes). The characteristics of cloud-native network functions are: [6] [7]