---
# Copyright 2021 Red Hat, Inc.
# All Rights Reserved.
#
# Licensed under the Apache License, Version 2.0 (the "License"); you may
# not use this file except in compliance with the License. You may obtain
# a copy of the License at
#
#     http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
# License for the specific language governing permissions and limitations
# under the License.
- name: Gathering TSX information
  shell: |
    uname -r | grep -oP "^[\d]+\.[\d]+\.[\d-]+"
    grep -qP "[^a-zA-Z]tsx=(on|off|auto)" /proc/cmdline && echo true || echo false
    grep -qP "hle|rtm" /proc/cpuinfo && echo true || echo false
    grep -qP "[^a-zA-Z]tsx=(on|off|auto)"  /etc/default/grub && echo true || echo false
  register: node_infos
  check_mode: false
  changed_when: false

- name: Parse custom node facts
  set_fact:
    tsx_rhel_8_2: "{{ node_infos.stdout_lines[0] is version(compute_tsx_8_3_version, '<') }}"
    tsx_cmdline: "{{ node_infos.stdout_lines[1] | bool }}"
    tsx_cpu_support: "{{ node_infos.stdout_lines[2] | bool }}"
    tsx_grub: "{{ node_infos.stdout_lines[3] | bool }}"
    tsx_kernel_args: "{{ 'tsx' in compute_tsx_kernel_args }}"

- name: Print facts
  when:
    - compute_tsx_debug | bool
  debug:
    msg: |
      tsx_rhel_8_2: {{ tsx_rhel_8_2 }}
      tsx_cmdline: {{ tsx_cmdline }}
      tsx_cpu_support: {{ tsx_cpu_support }}
      tsx_grub: {{ tsx_grub }}

# It's cleaner to assert only ANDs so we do a reverse assertion
- name: Validating facts
  assert:
    that:
      - tsx_rhel_8_2
      - tsx_cpu_support
      - not tsx_cmdline
      - not tsx_grub
      - not tsx_kernel_args
    success_msg: |
      {{ inventory_hostname }} doesn't have TSX flag configured
    fail_msg: |
      This is not a failure, assertion is successful.
      {{ inventory_hostname }} has the right TSX setting according to its running or startup configuration
  ignore_errors: true
  register: tsx_assertion

- name: Asserting errors
  fail:
    msg: |
      {{ tsx_assertion.msg }}

      {{ compute_tsx_information_msg }}

      To prevent this validation from failing, you can run it with the compute_tsx_warning flag set to true like this:
        openstack tripleo validator run  --extra-vars compute_tsx_warning=true --validation compute-tsx
  when:
    - not tsx_assertion.failed
    - not compute_tsx_warning | bool

- name: Displaying errors
  warn:
    msg: |
      {{ tsx_assertion.msg }}

      {{ compute_tsx_information_msg }}
  when:
    - not tsx_assertion.failed
    - compute_tsx_warning | bool