NSX-T Data Center 2.4 and later support the deployment of multiple NSX Manager nodes to form a cluster in a single NSX-T Data Center instance. If you want to use an NSX Manager cluster with VMware Integrated OpenStack, add the IP addresses of all cluster nodes to your deployment configuration.

Note: The following limitations apply to the NSX Manager cluster:
  • An NSX Manager cluster provides high availability for a single NSX-T Data Center instance. Multiple instances of NSX-T Data Center cannot be used with the same VMware Integrated OpenStack deployment.
  • In the VMware Integrated OpenStack deployment, after configuring the 3 NSX-T managers, if you make any changes to the NSX-T manager, you can see that all the configurations on this page are displayed correctly, except the NSX Policy configuration, which is still loading.

Prerequisites

Create the NSX Manager cluster in NSX-T Data Center. See Deploy NSX Manager Nodes to Form a Cluster from UI.

Procedure

  1. Log in to the Integrated OpenStack Manager as the root user. 
    ssh root@mgmt-server-ip
  2. Add the other two NSX-T managers into VMware Integrated OpenStack.
    1. Refer to the kubectl -n openstack get nsxs.vio.vmware.com -o yaml format to create a nsx YAML file for the other two NSX-T managers. For example: 
      vi nsx_sample.yaml
apiVersion: vio.vmware.com/v1alpha1
kind: NSX
metadata:
  labels:
    app: lcm
    clusterController: "true"
    group: vio.vmware.com
    kind: NSX
    name: nsx2
    openstackController: "true"
    version: v1alpha1
  name: nsx2
  namespace: openstack
  selfLink: /apis/vio.vmware.com/v1alpha1/namespaces/openstack/nsxs/nsx2
spec:
  hostname: <the second nsx manager ip address>
  insecure: true
  kind: nsxp
  password: .VIOSecret:viosecret1:spec.nsx_password
  username: admin
---
apiVersion: vio.vmware.com/v1alpha1
kind: NSX
metadata:
  labels:
    app: lcm
    clusterController: "true"
    group: vio.vmware.com
    kind: NSX
    name: nsx3
    openstackController: "true"
    version: v1alpha1
  name: nsx3
  namespace: openstack
  selfLink: /apis/vio.vmware.com/v1alpha1/namespaces/openstack/nsxs/nsx3
spec:
  hostname: <the third nsx manager ip address>
  insecure: true
  kind: nsxp
  password: .VIOSecret:viosecret1:spec.nsx_password
  username: admin
    2. Check that the nsx YAML format is created for the two NSX-T managers. 
      kubectl -n openstack apply -f nsx_sample.yaml
    3. Verify that there are three nsx pods. 
      kubectl -n openstack get pod | grep nsx
    4. Modify the Neutron configuration to include the IP addresses of each nsx pod. 
      kubectl edit neutrons.vio.vmware.com -o yaml -n openstack
nsx_api_managers: .NSX:nsx1:spec.hostname,.NSX:nsx2:spec.hostname,.NSX:nsx3:spec.hostname

What to do next

If the IP address of any node changes, or if you add or remove nodes in your NSX Manager cluster, you must modify the Neutron configuration to include the updated IP address information.