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dataplane-post-ceph.md

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Configuring and deploying the post-Ceph dataplane

Assumptions

  • The pre-Ceph dataplane was already deployed and Ceph was manually installed afterwords

Initialize post-Ceph

Switch to the "openstack" namespace

oc project openstack

Change to the dcn directory

cd architecture/examples/dt/dcn

Edit the values.yaml and service-values.yaml files to suit your environment.

vi values.yaml
vi service-values.yaml

Generate the post-Ceph dataplane nodeset CR.

kustomize build > nodeset-post-ceph.yaml

Generate the post-Ceph dataplane deployment CR.

kustomize build deployment > deployment-post-ceph.yaml

Create post-Ceph CRs

Create the nodeset CR

oc apply -f nodeset-post-ceph.yaml

Wait for post-Ceph dataplane nodeset setup to finish

oc wait osdpns openstack-edpm --for condition=SetupReady --timeout=1200s

Create the deployment CR

oc apply -f deployment-post-ceph.yaml

Wait for control plane to be available after updating

oc wait osctlplane controlplane --for condition=Ready --timeout=600s

Wait for post-Ceph dataplane deployment to finish

oc wait osdpd edpm-deployment-post-ceph --for condition=Ready --timeout=2800s

Finalize Nova computes

Ask Nova to discover all compute hosts

oc rsh nova-cell0-conductor-0 nova-manage cell_v2 discover_hosts --verbose

Create Host Aggregates. For example, to create a host aggregate with the name az0, use the following command:

oc rsh openstackclient openstack aggregate create --zone az0 az0

Add compute host to aggregate. To add a compute host to the aggregate, use the following command:

oc rsh openstackclient openstack aggregate add host az0 edpm-compute-0.ctlplane.example.com

Additional Availability Zones

The above will result in az0 with 3 compute nodes and one ceph cluster being deployed. To deploy additional AZs, e.g. az1 and az2, each with 3 more compute nodes and one more ceph cluster, create updated values files and re-apply the kustomizations. An Ansible role which does this in our CI system for testing is available to be reviewed for details.

https://github.com/openstack-k8s-operators/ci-framework/tree/main/roles/ci_dcn_site