Add a compute node¶

This section describes how to add a new compute node to your existing Mirantis OpenStack for Kubernetes deployment.

To add a compute node:

1. Add a bare metal host to the managed cluster with MOS as described in Mirantis Container Cloud Operations Guide: Add a bare metal host.

2. Create a Kubernetes machine in your cluster as described in Mitantis Container Cloud Operations Guide: Add a machine.

   When adding the machine, specify the node labels as required for an OpenStack compute node:

   OpenStack node roles¶

   Node role	Description	Kubernetes labels	Minimal count
   OpenStack control plane	Hosts the OpenStack control plane services such as database, messaging, API, schedulers, conductors, L3 and L2 agents.	openstack-control-plane=enabled openstack-gateway=enabled openvswitch=enabled	3
   OpenStack compute	Hosts the OpenStack compute services such as libvirt and L2 agents.	openstack-compute-node=enabled openvswitch=enabled (for a deployment with Open vSwitch as a back end for networking)	Varies

3. If required, configure the compute host to enable DPDK, huge pages, SR-IOV, and other advanced features in your MOS deployment. See MOS Deployment Guide: Advanced OpenStack configuration (optional) for details.