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path: root/extraconfig/pre_network/host_config_and_reboot.yaml
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heat_template_version: pike

description: >
  All configurations which require reboot should be initiated via PreNetworkConfig. After
  this configuration is completed, the corresponding node will be rebooted.

parameters:
  server:
    type: string
  RoleParameters:
    type: json
    description: Role Specific parameters
    default: {}
  ServiceNames:
    type: comma_delimited_list
    default: []
  OvsEnableDpdk:
    default: false
    description: Whether or not to configure enable DPDK in OVS
    type: boolean
  OvsDpdkCoreList:
    description: >
      List of cores to be used for DPDK lcore threads.  Note, these threads
      are used by the OVS control path for validator and handling functions.
    type: string
    constraints:
      - allowed_pattern: "[0-9,-]*"
    default: ""
  OvsDpdkMemoryChannels:
    description: Number of memory channels per socket to be used for DPDK
    type: string
    constraints:
      - allowed_pattern: "[0-9]*"
    default: ""
  OvsDpdkSocketMemory:
    default: ""
    description: >
      Sets the amount of hugepage memory to assign per NUMA node. It is
      recommended to use the socket closest to the PCIe slot used for the
      desired DPDK NIC.  The format should be in "<socket 0 mem>, <socket 1
      mem>, <socket n mem>", where the value is specified in MB.  For example:
      "1024,0".
    type: string
  OvsPmdCoreList:
    description: >
      A list or range of CPU cores for PMD threads to be pinned to.  Note, NIC
      location to cores on socket, number of hyper-threaded logical cores, and
      desired number of PMD threads can all play a role in configuring this
      setting.  These cores should be on the same socket where
      OvsDpdkSocketMemory is assigned.  If using hyperthreading then specify
      both logical cores that would equal the physical core. Also, specifying
      more than one core will trigger multiple PMD threads to be spawned which
      may improve dataplane performance.
    constraints:
      - allowed_pattern: "[0-9,-]*"
    type: string
    default: ""
  deployment_actions:
    default: ['CREATE', 'UPDATE']
    type: comma_delimited_list
    description: >
      List of stack actions that will trigger any deployments in this
      templates. The actions will be an empty list of the server is in the
      toplevel DeploymentServerBlacklist parameter's value.
  EnableDpdkDeploymentActions:
    default: ['CREATE']
    type: comma_delimited_list
    description: >
      Exposing the DPDK deployment action, it may be required to run DPDK
      config during an upgrade. By default DPDK will be enabled during the
      CREATE action only. But on cases when it requires for certain migration,
      it may be required to run it for UPDATE action too.
  # DEPRECATED: the following options are deprecated and are currently maintained
  # for backwards compatibility. They will be removed in the Queens cycle.
  HostCpusList:
    description: List of cores to be used for host process
    type: string
    constraints:
      - allowed_pattern: "[0-9,-]+"
    default: '0'
  NeutronDpdkCoreList:
    description: List of cores to be used for DPDK Poll Mode Driver
    type: string
    constraints:
      - allowed_pattern: "[0-9,-]*"
    default: ''
  NeutronDpdkMemoryChannels:
    description: Number of memory channels to be used for DPDK
    type: string
    constraints:
      - allowed_pattern: "[0-9]*"
    default: ''
  NeutronDpdkSocketMemory:
    default: ''
    description: Memory allocated for each socket
    type: string

conditions:
  is_host_config_required: {not: {equals: [{get_param: [RoleParameters, KernelArgs]}, ""]}}
  is_dpdk_config_required:
    or:
      - yaql:
          expression: $.data.service_names.contains('neutron_ovs_dpdk_agent')
          data:
            service_names: {get_param: ServiceNames}
      - {equals: [{get_param: [RoleParameters, OvsEnableDpdk]}, true]}
  is_reboot_config_required:
    or:
      - is_host_config_required
      - is_dpdk_config_required
  l_cores_empty: {equals: [{get_param: OvsDpdkCoreList}, '']}
  pmd_cores_empty: {equals: [{get_param: OvsPmdCoreList}, '']}
  mem_channels_empty: {equals: [{get_param: OvsDpdkMemoryChannels}, '']}
  socket_mem_empty: {equals: [{get_param: OvsDpdkSocketMemory}, '']}
  deployment_actions_empty:
    equals:
      - {get_param: deployment_actions}
      - []

resources:
  RoleParametersValue:
    type: OS::Heat::Value
    properties:
      type: json
      value:
        map_replace:
          - map_replace:
            - OvsDpdkCoreList: OvsDpdkCoreList
              OvsDpdkMemoryChannels: OvsDpdkMemoryChannels
              OvsDpdkSocketMemory: OvsDpdkSocketMemory
              OvsPmdCoreList: OvsPmdCoreList
            - values: {get_param: [RoleParameters]}
          - values:
              OvsDpdkCoreList: {if: [l_cores_empty, {get_param: HostCpusList}, {get_param: OvsDpdkCoreList}]}
              OvsDpdkMemoryChannels: {if: [mem_channels_empty, {get_param: NeutronDpdkMemoryChannels}, {get_param: OvsDpdkMemoryChannels}]}
              OvsDpdkSocketMemory: {if: [socket_mem_empty, {get_param: NeutronDpdkSocketMemory}, {get_param: OvsDpdkSocketMemory}]}
              OvsPmdCoreList: {if: [pmd_cores_empty, {get_param: NeutronDpdkCoreList}, {get_param: OvsPmdCoreList}]}

  HostParametersConfig:
    type: OS::Heat::SoftwareConfig
    condition: is_host_config_required
    properties:
      group: ansible
      inputs:
        - name: _KERNEL_ARGS_
        - name: _TUNED_PROFILE_NAME_
        - name: _TUNED_CORES_
      outputs:
        - name: result
      config:
        get_file: ansible_host_config.yaml

  HostParametersDeployment:
    type: OS::Heat::SoftwareDeployment
    condition: is_host_config_required
    properties:
      name: HostParametersDeployment
      server:  {get_param: server}
      config: {get_resource: HostParametersConfig}
      actions:
        if:
          - deployment_actions_empty
          - []
          - ['CREATE'] # Only do this on CREATE
      input_values:
        _KERNEL_ARGS_: {get_param: [RoleParameters, KernelArgs]}
        _TUNED_PROFILE_NAME_: {get_param: [RoleParameters, TunedProfileName]}
        _TUNED_CORES_: {get_param: [RoleParameters, IsolCpusList]}

  RebootConfig:
    type: OS::Heat::SoftwareConfig
    condition: is_reboot_config_required
    properties:
      group: script
      config: |
        #!/bin/bash
        # Stop os-collect-config to avoid any race collecting another
        # deployment before reboot happens
        systemctl stop os-collect-config.service
        /sbin/reboot

  RebootDeployment:
    type: OS::Heat::SoftwareDeployment
    depends_on: HostParametersDeployment
    condition: is_reboot_config_required
    properties:
      name: RebootDeployment
      server:  {get_param: server}
      config: {get_resource: RebootConfig}
      actions:
        if:
          - deployment_actions_empty
          - []
          - ['CREATE'] # Only do this on CREATE
      signal_transport: NO_SIGNAL

  # With OvS2.7 (which is default with pike), ovs-vswitchd will start dpdk
  # immediately after setting dpdk-init (behaviour change from ovs2.6).
  # Starting of DPDK require the huge page configuration to be enabled. So
  # reboot will happen before DPDK config and we don't need an explicity
  # restart after dpdk-init as true because of the behavior change.
  # TODO(skramaja): Dependency is that till the service file workaround, is
  # maintained, restart of ovs is required.
  EnableDpdkConfig:
    type: OS::Heat::SoftwareConfig
    condition: is_dpdk_config_required
    properties:
      group: script
      config:
        str_replace:
          template: |
            #!/bin/bash
            set -x

            # OvS Permission issue temporary workaround
            # https://bugzilla.redhat.com/show_bug.cgi?id=1459436
            # Actual solution from openvswitch - https://mail.openvswitch.org/pipermail/ovs-dev/2017-June/333423.html
            ovs_service_path="/usr/lib/systemd/system/ovs-vswitchd.service"

            if grep -q 'RuntimeDirectoryMode' $ovs_service_path; then
                sed -i 's/RuntimeDirectoryMode=.*/RuntimeDirectoryMode=0775/' $ovs_service_path
            else
                echo "RuntimeDirectoryMode=0775" >> $ovs_service_path
            fi

            if ! grep -Fxq "Group=qemu" $ovs_service_path ; then
              echo "Group=qemu" >> $ovs_service_path
            fi

            if ! grep -Fxq "UMask=0002" $ovs_service_path ; then
              echo "UMask=0002" >> $ovs_service_path
            fi

            ovs_ctl_path='/usr/share/openvswitch/scripts/ovs-ctl'
            if ! grep -q "umask 0002 \&\& start_daemon \"\$OVS_VSWITCHD_PRIORITY\"" $ovs_ctl_path ; then
              sed -i 's/start_daemon \"\$OVS_VSWITCHD_PRIORITY\"/umask 0002 \&\& start_daemon \"$OVS_VSWITCHD_PRIORITY\"/' $ovs_ctl_path
            fi

            systemctl daemon-reload
            systemctl restart openvswitch

            # DO NOT use --detailed-exitcodes
            puppet apply --logdest console \
              --modulepath /etc/puppet/modules:/opt/stack/puppet-modules:/usr/share/openstack-puppet/modules \
              -e '
                class {"vswitch::dpdk":
                  host_core_list  => "$HOST_CORES",
                  pmd_core_list   => "$PMD_CORES",
                  memory_channels => "$MEMORY_CHANNELS",
                  socket_mem      => "$SOCKET_MEMORY",
                }
              '
          params:
            $HOST_CORES: {get_attr: [RoleParametersValue, value, OvsDpdkCoreList]}
            $PMD_CORES: {get_attr: [RoleParametersValue, value, OvsPmdCoreList]}
            $MEMORY_CHANNELS: {get_attr: [RoleParametersValue, value, OvsDpdkMemoryChannels]}
            $SOCKET_MEMORY: {get_attr: [RoleParametersValue, value, OvsDpdkSocketMemory]}

  EnableDpdkDeployment:
    type: OS::Heat::SoftwareDeployment
    condition: is_dpdk_config_required
    depends_on: RebootDeployment
    properties:
      name: EnableDpdkDeployment
      server:  {get_param: server}
      config: {get_resource: EnableDpdkConfig}
      actions:
        if:
          - deployment_actions_empty
          - []
          - {get_param: EnableDpdkDeploymentActions}

outputs:
  result:
    condition: is_host_config_required
    value:
      get_attr: [HostParametersDeployment, result]
  stdout:
    condition: is_host_config_required
    value:
      get_attr: [HostParametersDeployment, deploy_stdout]
  stderr:
    condition: is_host_config_required
    value:
      get_attr: [HostParametersDeployment, deploy_stderr]
  status_code:
    condition: is_host_config_required
    value:
      get_attr: [HostParametersDeployment, deploy_status_code]