Integrate OpenStack projects with Kubernetes for multi-tenancy.
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Stackube Architecture

This page describes the architecture of stackube.

Overview

Stackube is a Kubernetes-centric OpenStack distro. It uses Kubernetes, instead of Nova, as the compute fabric controller, to provision containers as the compute instance, along with other OpenStack services (e.g. Cinder, Neutron). It supports multiple container runtime technologies, e.g. Docker, Hyper, and offers built-in soft/hard multi-tenancy (depending on the container runtime used).

Architecture

image

Components

  1. Standard OpenStack Compoents
  • OpenStack Keytone
  • OpenStack Neutron
  • OpenStack Cinder
  1. Standard Kubernetes Components
  • Etcd: the storage of kubernetes.
  • Kube-apiserver: the API, authn/authz and admission control of kubernetes.
  • Kuber-controller-manager: the brain of kubernetes, ensure the state of kubernetes cluster.
  • Kube-scheduler: the scheduler of kubernetes.
  • Kubelet: the container lifecycle and volume manager of kubernetes.
  • Frakti&HyperContainer: a hypervisor-based container runtime.
  • Docker: docker container runtime.
  1. Stackube addons
  • Stackube-controller: tenant and network manager.
  • Stackube-proxy: service discovery and load balancing, replacement of kube-proxy.
  • Kubestack: the CNI network plugin, which connects containers to Neutron network.