03697234fd
In I12a02f636f31985bc1b71bff5b744d346286a95f cell_v2 discovery was
originally moved from the nova-api container to the
nova-compute|nova-ironic containers in order to run cell
discovery during a scale up where the controllers are omitted
(e.g to exclude the controllers from a maintenance window).
This requires api database credentials on the compute node, which is
forbidden, so it must move back to a nova-api host as a pre-requisite
for removing these credentials in a follow-up patch.
Scale-up while omitting the controllers will no longer work out of the
box. Either a manual cell_v2 discovery can be run after scale up, or an
additional node can be deployed using the NovaManager tripleo role.
Related-bug: #1786961
Related-bug: #1871482
Change-Id: I47b95ad46e2d4e5b1f370a2f840826e87da2d703
(cherry picked from commit 629485dde5)
93 lines
3.5 KiB
YAML
93 lines
3.5 KiB
YAML
heat_template_version: rocky
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description: >
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Contains a static list of common things necessary for nova-compute containers
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parameters:
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# Required parameters
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EndpointMap:
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default: {}
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description: Mapping of service endpoint -> protocol. Typically set
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via parameter_defaults in the resource registry.
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type: json
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ServiceData:
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default: {}
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description: Dictionary packing service data
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type: json
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ServiceNetMap:
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default: {}
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description: Mapping of service_name -> network name. Typically set
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via parameter_defaults in the resource registry. This
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mapping overrides those in ServiceNetMapDefaults.
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type: json
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DefaultPasswords:
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default: {}
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type: json
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RoleName:
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default: ''
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description: Role name on which the service is applied
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type: string
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RoleParameters:
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default: {}
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description: Parameters specific to the role
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type: json
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NovaAdditionalCell:
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default: false
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description: Whether this is an cell additional to the default cell.
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type: boolean
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outputs:
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container_config_scripts:
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description: Shared docker config scripts
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value:
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nova_statedir_ownership.py:
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mode: "0700"
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content: { get_file: ../../container_config_scripts/nova_statedir_ownership.py }
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nova_wait_for_compute_service.py:
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mode: "0755"
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content: { get_file: ../../container_config_scripts/nova_wait_for_compute_service.py }
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nova_compute_common_deploy_steps_tasks:
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description: Common host prep tasks for nova-compute services (compute + ironic)
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# Runs as external_post_deploy_tasks
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value: &nova_compute_common_deploy_steps_tasks
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- block:
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- name: is additonal Cell?
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set_fact:
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nova_additional_cell: {get_param: NovaAdditionalCell}
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- name: check if discover hosts is required
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when:
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- not nova_additional_cell|bool
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- nova_cellv2_discovery_done is not defined
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block:
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- name: discover via nova_manager?
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set_fact:
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nova_cellv2_discovery_delegate_host: "{{ groups['nova_manager'][0] }}"
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nova_cellv2_discovery_container: nova_manager
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when:
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- groups['nova_manager'] is defined and (groups['nova_manager']|length>0)
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- name: discover via nova_api?
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set_fact:
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nova_cellv2_discovery_delegate_host: "{{ groups['nova_api'][0] }}"
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nova_cellv2_discovery_container: nova_api
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when:
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- nova_cellv2_discovery_delegate_host is not defined
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- groups['nova_api'] is defined and (groups['nova_api']|length>0)
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- name: Warn if no discovery host available
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fail:
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msg: 'No hosts available to run nova cell_v2 host discovery.'
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ignore_errors: yes
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when:
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- nova_cellv2_discovery_delegate_host is not defined
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- name: Discovering nova hosts
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command: "{{ container_cli }} exec {{ nova_cellv2_discovery_container }} nova-manage cell_v2 discover_hosts --by-service"
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become: true
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changed_when: false
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delegate_to: '{{ nova_cellv2_discovery_delegate_host }}'
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when:
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- nova_cellv2_discovery_delegate_host is defined
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# Could be included multiple times so ensure it only runs once
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- set_fact:
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nova_cellv2_discovery_done: true
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