"openstack overcloud node provision" will provision the overcloud nodes as per the provided baremetal_deployment.yaml file and then run network-config (os-net-config).

For NFV, before running os-net-config, there are a few other steps to be run to successfully complete os-net-config. First is kernel args, which is addressed by BZ #2035325. Second is to configure OvS-DPDK, which requires to be configured before os-net-config but after kernel args.


Refer the deploy_steps_tasks from https://github.com/openstack/tripleo-heat-templates/blob/master/deployment/openvswitch/openvswitch-dpdk-baremetal-ansible.yaml file (pasted below for reference). There need to be an option to configure OvS-DPDK before network config on "overcloud node provision" command.

      deploy_steps_tasks:
        - - name: Ddp packages and select the package
            vars:
              ddp_package: {get_attr: [RoleParametersDpdk, value, ddp_package]}
            block:
              - name: Gets latest version of required Ddp package
                shell: "ls --sort=version -r /lib/firmware/intel/ice/{{ ddp_package }}/ice[_-]?*.pkg"
                register: ddp_package_files
              - name: ddp package selection
                vars:
                  ddp_package_file: "{{ ddp_package_files.stdout.split('\n')[0] }}"
                shell: |
                  rm -f /lib/firmware/intel/ice/ddp/ice.pkg
                  ln -s {{ ddp_package_file }} /lib/firmware/intel/ice/ddp/ice.pkg
                  dracut -f
                when: ddp_package_files is defined and ddp_package_file|string != ""
            when: step|int == 0 and ddp_package|string != "ddp"
        - get_attr: [BootParams, role_data, deploy_steps_tasks]
        - - name: Run ovs-dpdk role
            when: step|int == 0
            include_role:
              name: tripleo_ovs_dpdk
            vars:
              tripleo_ovs_dpdk_pmd_core_list: {get_attr: [RoleParametersDpdk, value, pmd]}
              tripleo_ovs_dpdk_lcore_list: {get_attr: [RoleParametersDpdk, value, lcore]}
              tripleo_ovs_dpdk_memory_channels: {get_attr: [RoleParametersDpdk, value, memory_channels]}
              tripleo_ovs_dpdk_socket_memory: {get_attr: [RoleParametersDpdk, value, socket_mem]}
              tripleo_ovs_dpdk_revalidator_cores: {get_attr: [RoleParametersDpdk, value, revalidator]}
              tripleo_ovs_dpdk_handler_cores: {get_attr: [RoleParametersDpdk, value, handler]}
              tripleo_ovs_dpdk_pmd_auto_lb: {get_attr: [RoleParametersDpdk, value, pmd_auto_lb]}
              tripleo_ovs_dpdk_pmd_load_threshold: {get_attr: [RoleParametersDpdk, value, pmd_load_threshold]}
              tripleo_ovs_dpdk_pmd_improvement_threshold: {get_attr: [RoleParametersDpdk, value, pmd_improvement_threshold]}
              tripleo_ovs_dpdk_pmd_rebal_interval: {get_attr: [RoleParametersDpdk, value, pmd_rebal_interval]}
              tripleo_ovs_dpdk_emc_insertion_probablity:
                if:
                - {get_param: OvsDisableEMC}
                - 0
              tripleo_ovs_dpdk_enable_tso: {get_attr: [RoleParametersDpdk, value, enable_tso]}
              tripleo_ovs_dpdk_vhost_postcopy_support:
                if:
                  - is_realtime
                  - false
                  - {get_attr: [RoleParametersDpdk, value, nova_postcopy]}