browbeat/ansible/browbeat/adjustment-gnocchi.yml

---
#
# Playbook to adjust Gnocchi config options
#
# Versions tested: Newton, Ocata, Pike
#
# Example:
#
# ansible-playbook -i hosts browbeat/adjustment-gnocchi.yml -e 'metricd_workers=12 metric_processing_delay=30 processing_replicas=3'
#

- hosts: controller
  remote_user: "{{ host_remote_user }}"
  gather_facts: false
  vars_files:
    - ../install/group_vars/all.yml
  vars:
    # Create initial blank configuration list
    gnocchi_configuration: []
    # Pike Defaults
    default_metricd_workers: 12
    default_metric_processing_delay: 30
    default_processing_replicas: 3
    # Each configuration item needs to be a list so it can be merged
    metricd_workers_item: []
    metric_processing_delay_item: []
    processing_replicas_item: []
  pre_tasks:
    - name: Get OSP Version
      slurp:
        src: "/etc/rhosp-release"
      register: osp_version
      become: true

    - name: (Newton, Ocata) Set Config File based on OpenStack Version
      set_fact:
        gnocchi_config_file: /etc/gnocchi/gnocchi.conf
      when: "('Newton' in osp_version['content'] | b64decode or 'Ocata' in osp_version['content'] | b64decode)"

    - name: (Pike) Set Config File based on OpenStack Version
      set_fact:
        gnocchi_config_file: /var/lib/config-data/puppet-generated/gnocchi/etc/gnocchi/gnocchi.conf
      when: "'Pike' in osp_version['content'] | b64decode"

    - name: (Newton) Set default metricd_workers and metric_processing_delay
      set_fact:
        gnocchi_configuration:
          - section: metricd
            option: workers
            value: "{{default_metricd_workers}}"
          - section: storage
            option: metric_processing_delay
            value: "{{default_metric_processing_delay}}"
      when: "'Newton' in osp_version['content'] | b64decode and metricd_workers is undefined and metric_processing_delay is undefined"

    - name: (Ocata) Set default metricd_workers and metric_processing_delay
      set_fact:
        gnocchi_configuration:
          - section: metricd
            option: workers
            value: "{{default_metricd_workers}}"
          - section: metricd
            option: metric_processing_delay
            value: "{{default_metric_processing_delay}}"
      when: "'Ocata' in osp_version['content'] | b64decode and metricd_workers is undefined and metric_processing_delay is undefined"

    - name: (Pike) Set default metricd_workers and metric_processing_delay
      set_fact:
        gnocchi_configuration:
          - section: metricd
            option: workers
            value: "{{default_metricd_workers}}"
          - section: metricd
            option: metric_processing_delay
            value: "{{default_metric_processing_delay}}"
          - section: metricd
            option: processing_replicas
            value: "{{default_processing_replicas}}"
      when: "'Pike' in osp_version['content'] | b64decode and metricd_workers is undefined and metric_processing_delay is undefined and processing_replicas is undefined"

    - name: Set metricd_workers configuration
      set_fact:
        metricd_workers_item:
          - section: metricd
            option: workers
            value: "{{metricd_workers}}"
      when: metricd_workers is defined

    - name: (Newton) Set metric_processing_delay configuration
      set_fact:
        metric_processing_delay_item:
          - section: storage
            option: metric_processing_delay
            value: "{{metric_processing_delay}}"
      when: "(metric_processing_delay is defined and 'Newton' in osp_version['content'] | b64decode)"

    - name: (Ocata, Pike) Set metric_processing_delay configuration
      set_fact:
        metric_processing_delay_item:
          - section: metricd
            option: metric_processing_delay
            value: "{{metric_processing_delay}}"
      when: "(metric_processing_delay is defined and ('Ocata' in osp_version['content'] | b64decode or 'Pike' in osp_version['content'] | b64decode))"

    - name: Set processing_replicas configuration
      set_fact:
        processing_replicas_item:
          - section: metricd
            option: processing_replicas
            value: "{{processing_replicas}}"
      when: processing_replicas is defined

    - name: Merge configuration items
      set_fact:
        gnocchi_configuration: "{{gnocchi_configuration + metricd_workers_item + metric_processing_delay_item + processing_replicas_item }}"

  roles:
    - gnocchi-config