Chapter 6. Deployment

At this point, you should have already configured the necessary settings to mitigate resource contention between colocated Compute and Ceph Storage services (as described in Chapter 4, Configuring Resource Isolation on Hyper-Converged Nodes).

Before you proceed, ensure that:

  1. You are using a separate base environment file (or set of files) for all other Ceph settings. Both sections assume that you are using the same /home/stack/templates/storage-config.yaml file from Customizing the Storage Service and Sample Environment File: Creating a Ceph Cluster (both sections from Deploying an Overcloud with Containerized Red Hat Ceph).
  2. The same /home/stack/templates/storage-config.yaml environment file also defines how many nodes you are assigning to each role. For related information on this, see Assigning Nodes and Flavors to Roles (also from Deploying an Overcloud with Containerized Red Hat Ceph).

Red Hat recommends not to enable Instance HA by default for hyperconverged OpenStack deployments with Ceph (RHHI-C). It is possible to enable Instance HA with hyperconverged OpenStack deployments with Ceph provided that Red Hat reviews the configuration and that a support exception is filed. Please contact your Red Hat representative if you wish to use Instance HA with hyperconverged OpenStack deployments with Ceph.

To deploy your overcloud, run the following command:

$ openstack overcloud deploy --templates \
  -p /usr/share/openstack-tripleo-heat-templates/plan-samples/plan-environment-derived-params.yaml \
  -r /home/stack/templates/roles_data.yaml \
  -e /home/stack/templates/ports.yaml
  -e /home/stack/templates/environment-rhel-registration.yaml
  -e /usr/share/openstack-tripleo-heat-templates/environments/ceph-ansible/ceph-ansible.yaml \
  -e /home/stack/templates/storage-config.yaml \
  -e /home/stack/templates/storage-container-config.yaml \
  -e /home/stack/templates/network.yaml \
  -e /home/stack/templates/ceph-backfill-recovery.yaml \


  • --ntp-server - Sets our NTP server.

Use the -e flag to add environment files as needed for your planned overcloud deployment. For example, to also enable Single-Root Input/Output Virtualization (SR-IOV), add its corresponding environment file:

  -e /usr/share/openstack-tripleo-heat-templates/environments/neutron-sriov.yaml

To apply your SR-IOV network preferences, add an environment file defining them:

  -e /home/stack/templates/network-environment.yaml

Currently, SR-IOV is the only Network Function Virtualization (NFV) implementation supported with HCI. See SR-IOV Support for Virtual Networking (from the Networking Guide) for more details.

For a full list of deployment options, run:

$ openstack help overcloud deploy

For more information, see Creating the Overcloud with the CLI Tools (from Director Installation and Usage).


You can also use an answers file to specify which environment files to include in your deployment. See Including Environment Files in Overcloud Creation (from Director Installation and Usage) for more details.