kolla-ansible/ansible/roles/nova-cell/tasks/upgrade.yml
Mark Goddard b685ac44e0 Performance: replace unconditional include_tasks with import_tasks
Including tasks has a performance penalty when compared with importing
tasks. If the include has a condition associated with it, then the
overhead of the include may be lower than the overhead of skipping all
imported tasks. For unconditionally included tasks, switching to
import_tasks provides a clear benefit.

Benchmarking of include vs. import is available at [1].

This change switches from include_tasks to import_tasks where there is
no condition applied to the include.

[1] https://github.com/stackhpc/ansible-scaling/blob/master/doc/include-and-import.md#task-include-and-import

Partially-Implements: blueprint performance-improvements

Change-Id: Ia45af4a198e422773d9f009c7f7b2e32ce9e3b97
2020-08-28 16:12:03 +00:00

17 lines
491 B
YAML

---
- name: Stopping nova cell services
become: true
kolla_docker:
action: "stop_container"
common_options: "{{ docker_common_options }}"
name: "{{ item.value.container_name }}"
with_dict: "{{ nova_cell_services }}"
when:
- "'nova-compute' not in item.key"
- item.key in nova_cell_services_require_nova_conf
- inventory_hostname in groups[item.value.group]
- item.value.enabled | bool
- nova_safety_upgrade | bool
- import_tasks: rolling_upgrade.yml