OpenShift Network Plugins

External

• https://docs.openshift.com/container-platform/3.5/architecture/additional_concepts/sdn.html
• https://docs.openshift.com/container-platform/3.5/install_config/configuring_sdn.html

Internal

• OpenShift Concepts

Overview

TODO: unify with the upper layer OpenShift_Concepts#SDN.2C_Overlay_Network

Pods get IP addresses from the cluster network, and the address allocation and packet routing is provided by a software-defined network (SDN), implemented using Open vSwitch (OVS).

SDN Plug-Ins

subnet

All pods in the cluster can talk to each other, regardless of project (namespace).

Ansible configuration file:

os_sdn_network_plugin_name='redhat/openshift-ovs-subnet'

multitenant

Ansible configuration file:

os_sdn_network_plugin_name='redhat/openshift-ovs-multitenant'

Operations

Information about the network plugin and network status:

oc get clusternetwork

Information about virtual networks assigned to each project:

oc get namespaces