Configure Kernel Args and Tuned and then reboot for Compute

* On top of the https://review.openstack.org/#/c/411204
* Added Kernel args and Tune-d configuration
* Added provision to provide different kernel args per role (applicable
  for different types of compute roles only)

Implements: blueprint tuned-nfv-dpdk

Change-Id: I5c538428c376c9d2ebd1c364f0ee8503fd7d620e

environments/host-config-pre-network.j2.yaml

@@ -0,0 +1,16 @@
+resource_registry:
+# Create the registry only for roles with the word "Compute" in it. Like ComputeOvsDpdk, ComputeSriov, etc.,
+{% for role in roles %}
+{% if "Compute" in role.name %}
+  OS::TripleO::{{role.name}}::PreNetworkConfig: ../extraconfig/pre_network/{{role.name.lower()}}-host_config_and_reboot.yaml
+{% endif %}
+{% endfor %}
+
+parameter_defaults:
+  # Sample parameters for Compute and ComputeOvsDpdk roles
+  #ComputeKernelArgs: ""
+  #ComputeTunedProfileName: ""
+  #ComputeHostCpuList: ""
+  #ComputeOvsDpdkKernelArgs: ""
+  #ComputeOvsDpdkTunedProfileName: ""
+  #ComputeOvsDpdkHostCpuList: ""

extraconfig/pre_network/ansible_host_config.ansible

@@ -0,0 +1,58 @@
+---
+- name: Configuration to be applied before rebooting the node
+  connection: local
+  hosts: localhost
+
+  tasks:
+    # Kernel Args Configuration
+    - block:
+        - name: Ensure the kernel args ( {{ _KERNEL_ARGS_ }} ) is present as TRIPLEO_HEAT_TEMPLATE_KERNEL_ARGS
+          lineinfile:
+            dest: /etc/default/grub
+            regexp: '^TRIPLEO_HEAT_TEMPLATE_KERNEL_ARGS.*'
+            insertafter: '^GRUB_CMDLINE_LINUX.*'
+            line: 'TRIPLEO_HEAT_TEMPLATE_KERNEL_ARGS=" {{ _KERNEL_ARGS_ }} "'
+        - name: Add TRIPLEO_HEAT_TEMPLATE_KERNEL_ARGS to the GRUB_CMDLINE_LINUX parameter
+          lineinfile:
+            dest: /etc/default/grub
+            line: 'GRUB_CMDLINE_LINUX="${GRUB_CMDLINE_LINUX:+$GRUB_CMDLINE_LINUX }${TRIPLEO_HEAT_TEMPLATE_KERNEL_ARGS}"'
+            insertafter: '^TRIPLEO_HEAT_TEMPLATE_KERNEL_ARGS.*'
+        - name: Generate grub config file
+          command: grub2-mkconfig -o /boot/grub2/grub.cfg
+      become: true
+      when: _KERNEL_ARGS_|default("") != ""
+
+    # Tune-d Configuration
+    - block:
+        - name: Tune-d Configuration
+          lineinfile:
+            dest: /etc/tuned/cpu-partitioning-variables.conf
+            regexp: '^isolated_cores=.*'
+            line: 'isolated_cores={{ _HOST_CPUS_LIST_ }}'
+          when: _HOST_CPUS_LIST_|default("") != ""
+
+        - name: Tune-d provile activation
+          shell: tuned-adm profile {{ _TUNED_PROFILE_NAME_ }}
+      become: true
+      when: _TUNED_PROFILE_NAME_|default("") != ""
+
+    # Provisioning Network workaround
+    # The script will be executed before os-net-config, in which case, only Provisioning network will have IP
+    # BOOTPROTO of all interface config files (except provisioning), will be set to "none" to avoid reboot failing to acquire IP on other networks
+    - block:
+      - find:
+          paths: /etc/sysconfig/network-scripts/
+          patterns: ifcfg-*
+        register: ifcfg_files
+
+      - replace:
+          dest: "{{ item.path }}"
+          regexp: '^BOOTPROTO=.*'
+          replace: 'BOOTPROTO=none'
+        when:
+          - item.path | regex_replace('(^.*ifcfg-)(.*)', '\\2') != "lo"
+          # This condition will list all the interfaces except the one with valid IP (which is Provisioning network at this stage)
+          # Simpler Version - hostvars[inventory_hostname]['ansible_' + iface_name ]['ipv4']['address'] is undefined
+          - hostvars[inventory_hostname]['ansible_' + item.path | regex_replace('(^.*ifcfg-)(.*)', '\\2') ]['ipv4']['address'] is undefined
+        with_items:
+          - "{{ ifcfg_files.files }}"

extraconfig/pre_network/host_config_and_reboot.role.j2.yaml

@@ -0,0 +1,100 @@
+heat_template_version: 2016-10-14
+
+description: >
+  Do some configuration, then reboot - sometimes needed for early-boot
+  changes such as modifying kernel configuration
+
+parameters:
+  server:
+    type: string
+  {{role}}KernelArgs:
+    type: string
+    default: ""
+  {{role}}TunedProfileName:
+    type: string
+    default: ""
+  {{role}}HostCpusList:
+    type: string
+    default: ""
+
+conditions:
+  param_exists:
+    or:
+      - not:
+          equals:
+          - get_param: {{role}}KernelArgs
+          - ""
+      - not:
+          equals:
+          - get_param: {{role}}TunedProfileName
+          - ""
+
+resources:
+
+  HostParametersConfig:
+    type: OS::Heat::SoftwareConfig
+    condition: param_exists
+    properties:
+      group: ansible
+      inputs:
+        - name: _KERNEL_ARGS_
+        - name: _TUNED_PROFILE_NAME_
+        - name: _HOST_CPUS_LIST_
+      outputs:
+        - name: result
+      config:
+        get_file: ansible_host_config.ansible
+
+  HostParametersDeployment:
+    type: OS::Heat::SoftwareDeployment
+    condition: param_exists
+    properties:
+      name: HostParametersDeployment
+      server:  {get_param: server}
+      config: {get_resource: HostParametersConfig}
+      actions: ['CREATE'] # Only do this on CREATE
+      input_values:
+        _KERNEL_ARGS_: {get_param: {{role}}KernelArgs}
+        _TUNED_PROFILE_NAME_: {get_param: {{role}}TunedProfileName}
+        _HOST_CPUS_LIST_: {get_param: {{role}}HostCpusList}
+
+  RebootConfig:
+    type: OS::Heat::SoftwareConfig
+    condition: param_exists
+    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
+    condition: param_exists
+    depends_on: HostParametersDeployment
+    properties:
+      name: RebootDeployment
+      server:  {get_param: server}
+      config: {get_resource: RebootConfig}
+      actions: ['CREATE'] # Only do this on CREATE
+      signal_transport: NO_SIGNAL
+
+outputs:
+  result:
+    value:
+      get_attr: [HostParametersDeployment, result]
+    condition: param_exists
+  stdout:
+    value:
+      get_attr: [HostParametersDeployment, deploy_stdout]
+    condition: param_exists
+  stderr:
+    value:
+      get_attr: [HostParametersDeployment, deploy_stderr]
+    condition: param_exists
+  status_code:
+    value:
+      get_attr: [HostParametersDeployment, deploy_status_code]
+    condition: param_exists