This document describes how to deploy EDPM nodes with SRIOV.
- Configure kernel args and tuned parameters
- Configure SRIOV parameters
- Configure the networks with SRIOV interfaces of the EDPM nodes
- Configure Nova and Neutron parameters.
In order to complete the above procedure, the services
list of the
OpenStackDataPlaneNodeSet
CR needs to be edited.
EDPM nodes can be configured by creating an
OpenStackDataPlaneNodeSet
CR which the
openstack-operator
will reconcile to create OpenStackDataPlaneService resources
when an OpenStackDataPlaneNodeSet
CR is created.
These types of CRs have a services
list like the following:
apiVersion: dataplane.openstack.org/v1beta1
kind: OpenStackDataPlaneNodeSet
spec:
...
services:
- bootstrap
- download-cache
- configure-network
- validate-network
- install-os
- configure-os
- ssh-known-hosts
- run-os
- reboot-os
- install-certs
- libvirt
- ovn
- neutron-ovn
- nova-custom-sriov
- neutron-sriov
- neutron-metadata
Only the services which are on the list will be configured. All these services are created using OpenStackDataPlaneService CR.
Following are the list of EDPM ansible variables which need to be provided for deploying with SRIOV support.
edpm_kernel_args: Configures kernel boot parameters
edpm_tuned_profile: tuned profile configuration
edpm_tuned_isolated_cores: List of isolated cores
edpm_nova_libvirt_qemu_group: Configures qemu group for nova libvirt
Example:
edpm_kernel_args: "default_hugepagesz=1GB hugepagesz=1G hugepages=64 iommu=pt intel_iommu=on tsx=off isolcpus=2-11,14-23"
edpm_tuned_profile: "cpu-partitioning"
edpm_tuned_isolated_cores: "2-11,14-23"
edpm_nova_libvirt_qemu_group: "hugetlbfs"
edpm_network_config_template: SRIOV enabled network interfaces should be specified in the network config templates to configure SRIOV on the EDPM node. This example also assumes that the EDPM nodes:
- PXE and boot settings are already configured.
- Are at least one baremetal compute with SRIOV interfaces.
edpm_network_config_template
-
type: sriov_pf
name: nic3
numvfs: 10
use_dhcp: false
promisc: true
Create an OpenStackDataPlaneNodeSet
CR file,
e.g. dataplane_cr.yaml
to represent the EDPM nodes. See
dataplane_v1beta1_openstackdataplanenodeset.yaml
for an example to modify as described in this document.
Do not yet create the CR in OpenShift as the edits described in the
next sections are required.
The example dataplane_v1beta1_openstackdataplanenodeset_sriov.yaml has SRIOV interfaces network configuration and required edpm ansible parameters.
Modify your OpenStackDataPlaneNodeSet
CR to set
edpm-ansible
variables so that the
edpm_network_config role
will configure networks with SRIOV interfaces.
Create a ConfigMap with content to be added to /etc/nova/nova.conf.d/,
---
apiVersion: v1
kind: ConfigMap
metadata:
name: cpu-pinning-nova
data:
25-cpu-pinning-nova.conf: |
[DEFAULT]
reserved_host_memory_mb = 4096
[compute]
cpu_shared_set = 0-3,24-27
cpu_dedicated_set = 8-23,32-47
The filename, e.g. 25-cpu-pinning-nova.conf
, must match *nova*.conf
and
the files are evaluated by Nova alphabetically (e.g. 01-foo-nova.conf
is processed before 02-bar-nova.conf
).
---
apiVersion: v1
kind: ConfigMap
metadata:
name: sriov-nova
data:
03-sriov-nova.conf: |
[pci]
device_spec = {"vendor_id":"8086", "product_id":"1572", "address": "0000:19:00.3", "physical_network":"sriov-phy4", "trusted":"true"}
The filename, e.g. 03-sriov-nova.conf
, must match *nova*.conf
and
the files are evaluated by Nova alphabetically (e.g. 01-foo-nova.conf
is processed before 02-bar-nova.conf
).
Create a custom version of the
nova service
which ships with the openstack operator so that it uses the ConfigMap
by adding it to the configMaps
list.
---
apiVersion: dataplane.openstack.org/v1beta1
kind: OpenStackDataPlaneService
metadata:
name: nova-custom-sriov
spec:
label: dataplane-deployment-nova-custom-sriov
dataSources:
- configMapRef:
name: cpu-pinning-nova
- configMapRef:
name: sriov-nova
- secretRef:
name: nova-cell1-compute-config
- secretRef:
name: nova-migration-ssh-key
playbook: osp.edpm.nova
tlsCert:
contents:
- dnsnames
- ips
networks:
- ctlplane
issuer: osp-rootca-issuer-internal
caCerts: combined-ca-bundle
The custom service is named nova-custom-sriov
. It cannot be named
nova
because nova
is an immutable default service and will
overwrite any custom service with the same name during reconciliation.
After the ConfigMap
and OpenStackDataPlaneService
services above
have been created (e.g. oc create -f nova-custom-sriov.yaml
), update the
OpenStackDataPlaneNodeSet
EDPM services list
to replace the nova
service with nova-custom-sriov
.
apiVersion: dataplane.openstack.org/v1beta1
kind: OpenStackDataPlaneNodeSet
spec:
...
roles:
edpm-compute:
...
services:
- bootstrap
- download-cache
- configure-network
- validate-network
- install-os
- configure-os
- ssh-known-hosts
- run-os
- reboot-os
- install-certs
- libvirt
- ovn
- neutron-ovn
- nova-custom-sriov
- neutron-sriov
- neutron-metadata
The bootstrap
, configure-network
and neutron-sriov
services
should be added before the libvirt
and nova
(or nova-custom-sriov
in this case) services. It configures EDPM nodes with SRIOV.
When the nova-custom-sriov
service Ansible job runs, it will copy
overrides from the ConfigMap
s onto the Nova hosts.
Create the CR from your directory based on the example dataplane_v1beta1_openstackdataplanenodeset_sriov with the changes described in the previous section.
oc kustomize --load-restrictor LoadRestrictionsNone config/samples/dataplane/sriov > dataplane_cr.yaml
Creating an OpenStackDataPlaneDeployment
will trigger Ansible jobs
to configure an EDPM. Which Ansible roles are run depends on the
services
list.
Each OpenStackDataPlaneDeployment
can have its own
servicesOverride
list which will redefine the list
of services of an any OpenStackDataPlaneNodeSet
in the
list for a deployment.
The example dataplane_v1beta1_openstackdataplanedeployment_sriov
Create the CR based on the example
oc kustomize --load-restrictor LoadRestrictionsNone config/samples/dataplane/sriov > dataplane_cr.yaml
Custom OpenStackDataPlaneService
called nova-custom-sriov
has been created as described in
the documentation to configure OpenStack to use SRIOV.
The nova-custom-sriov
can be seen in the
example
and takes the place of the default nova
OpenStackDataPlaneService. This custom service uses a ConfigMap
called
cpu-pinning-nova
which ensures that the file 03-cpu-pinning-nova.conf
is used
by Nova.
Now that the nova-custom-sriov
has been created, use the example
dataplane_v1beta1_openstackdataplanedeployment_sriov
to start the deployment.
oc kustomize --load-restrictor LoadRestrictionsNone config/samples/dataplane/sriov > dataplane_cr.yaml
oc create -f dataplane_cr.yaml
The SRIOV deployment should be complete after the Ansible jobs started from creating the above CR finish successfully.