kayobe/ansible/roles/kolla-ansible-host-vars/templates/host-vars.j2
Mark Goddard b12f9e35e5 Performance: Parallelise Kolla Ansible host vars generation
Kayobe generates a host_vars file for each host in the Kolla Ansible
inventory. These contain network interfaces and other host-specific
things. Currently this is done by iterating over all hosts, which does
not scale well with a large number of hosts.

This change extracts the host vars generation into a separate role, and
executes it in a play targeted at all hosts, with delegate_to:
localhost. This ensures that host variable files are generated in
parallel.

Story: 2007993
Task: 40629

Change-Id: Iae75e17024adee9c2874c14d3ed36f4c87ba48d7
2020-09-22 17:06:04 +01:00

8 lines
265 B
Django/Jinja

---
{% for hv_name in kolla_ansible_pass_through_host_vars %}
{% set host_hv=hostvars[inventory_hostname] %}
{% if hv_name in host_hv %}
{{ kolla_ansible_pass_through_host_vars_map.get(hv_name, hv_name) }}: {{ host_hv[hv_name] | to_json }}
{% endif %}
{% endfor %}