c6d4c6207f
In Rocky Nova has implemented templating in Cell Mappings [1] That means that instead of hardcoding connection details in database, we can just put a template there. Variables are parsed from nova.conf and substituted on the service load. Thus we don't need to update cells every time we change passoword and we can use different credentials across nodes since they will be just taken from config files. We also perform upgrade of the cells to the templates when cell exist. Task `Map instances to new Cell1` is removed, since it's required to map instances to cellv2 only during upgrade from cellsv1 to cellsv2 which is not the case nowadays or when migrating instances between cells [2]. [1] https://docs.openstack.org/nova/latest/user/cells.html#template-urls-in-cell-mappings [2] https://docs.openstack.org/nova/rocky/cli/nova-manage.html#nova-cells-v2 Change-Id: Ia6bef7b902c0fb99a529c592172226bb16ed0d9d
100 lines
3.9 KiB
YAML
100 lines
3.9 KiB
YAML
---
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# Copyright 2014, Rackspace US, Inc.
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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- name: Synchronize the nova API DB schema
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command: "{{ nova_bin }}/nova-manage api_db sync"
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become: yes
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become_user: "{{ nova_system_user_name }}"
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changed_when: false
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# This is idempotent and therefore safe for greenfield
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# and brownfield installations.
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- name: Create the cell0 mapping entry in the nova API DB
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command: >-
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{{ nova_bin }}/nova-manage cell_v2 map_cell0
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--database_connection mysql+pymysql://{{ nova_api_galera_user }}:{{ nova_api_container_mysql_password }}@{{ nova_api_galera_address }}/{{ nova_cell0_database }}?charset=utf8
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become: yes
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become_user: "{{ nova_system_user_name }}"
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changed_when: false
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- name: Synchronize the nova DB schema
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command: "{{ nova_bin }}/nova-manage db sync"
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become: yes
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become_user: "{{ nova_system_user_name }}"
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changed_when: false
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- name: Perform online data migrations
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command: "{{ nova_bin }}/nova-manage db online_data_migrations"
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become: yes
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become_user: "{{ nova_system_user_name }}"
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when:
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- "(nova_all_software_updated | default('no')) | bool"
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- "ansible_local['openstack_ansible']['nova']['need_online_data_migrations'] | bool"
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changed_when: false
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register: data_migrations
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- name: Disable the online migrations requirement
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ini_file:
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dest: "/etc/ansible/facts.d/openstack_ansible.fact"
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section: nova
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option: need_online_data_migrations
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value: False
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when:
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- data_migrations is not skipped
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- data_migrations is succeeded
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# We need to check for existance of the cell, since nova-manage cell_v2 create_cell
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# might be not idempotent due to the bug https://bugs.launchpad.net/nova/+bug/1923899
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- name: Get UUID of new Nova Cell
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shell: "{{ nova_bin }}/nova-manage cell_v2 list_cells | grep ' {{ nova_cell1_name }} '"
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become: yes
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become_user: "{{ nova_system_user_name }}"
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changed_when: false
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failed_when: false
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register: _cell_uuid
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- name: Create the cell1 mapping entry in the nova API DB
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command: >-
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{{ nova_bin }}/nova-manage cell_v2 create_cell
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--name {{ nova_cell1_name }}
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--database_connection {scheme}://{username}:{password}@{hostname}/{path}?{query}
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--transport-url {scheme}://{username}:{password}@{hostname}//{path}?{query}
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become: yes
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become_user: "{{ nova_system_user_name }}"
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register: nova_cell1_create
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# When upgrading, cell1 will already exist and nova-manage will
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# give a return code of 2, so we therefore know that if the
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# return code is:
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# 0: the cell mapping record in the nova API database was
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# successfully implemented (greenfield install)
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# 2: the cell mapping record in the nova API database already
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# exists (brownfield install). This is not working for templates
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# because of the bug https://bugs.launchpad.net/nova/+bug/1923899
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failed_when: "nova_cell1_create.rc not in [0, 2]"
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changed_when: "nova_cell1_create.rc == 0"
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when: "_cell_uuid.rc == 1"
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# TODO(noonedeadpunk): Remove this task in X release
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- name: "Upgrade {{ nova_cell1_name }} to use template for connection"
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command: >-
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{{ nova_bin }}/nova-manage cell_v2 update_cell
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--cell_uuid {{ _cell_uuid['stdout'].split()[3] }}
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--database_connection {scheme}://{username}:{password}@{hostname}/{path}?{query}
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--transport-url {scheme}://{username}:{password}@{hostname}//{path}?{query}
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become: yes
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become_user: "{{ nova_system_user_name }}"
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changed_when: false
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when: "_cell_uuid.rc == 0"
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