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Chapter 45. Kuryr SDN Administration
45.1. Overview
Prior to OpenShift Container Platform 3.10.119, Kuryr SDN Administration is a Technology Preview feature. Technology Preview features are not supported with Red Hat production service level agreements (SLAs), might not be functionally complete, and Red Hat does not recommend to use them for production. These features provide early access to upcoming product features, enabling customers to test functionality and provide feedback during the development process.
For more information on Red Hat Technology Preview features support scope, see https://access.redhat.com/support/offerings/techpreview/.
Kuryr (or Kuryr-Kubernetes) is one of the SDN choices for OpenShift Container Platform. Kuryr uses an OpenStack networking service, Neutron, to connect pods to the network. With this method, pods can have inter-connectivity with OpenStack virtual machines (VMs), which is useful for OpenShift Container Platform clusters deployed on OpenStack VMs.
45.1.1. Orphaned OpenStack Resources
All OpenStack resources created by Kuryr are tied to the OpenShift Container Platform resources lifecycle .Manually deleting resources created by Kuryr, such as OpenStack VMs, can result in the OpenStack deployment having orphaned resources. This includes, but is not limited to, Neutron ports, Octavia, load balancers, networks, subnets, and security groups pre-created for Kuryr’s use. Orphaned resources can be properly removed by looking up the resource IDs found within the kuryr.conf file. Alternatively, if the Kuryr resources were created by a separate OpenStack user, you can query the OpenStack APIs with the associated user name.
