ceph-ansible/roles/ceph-mon/tasks/crush_rules.yml

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---
- name: create roots needed for configured crush rules
command: "{{ docker_exec_cmd }} ceph --cluster {{ cluster }} osd crush add-bucket {{ item.root }} root"
with_items: "{{ crush_rules | unique }}"
changed_when: false
failed_when: false
run_once: true
- name: create configured crush rules
command: "{{ docker_exec_cmd }} ceph --cluster {{ cluster }} osd crush rule create-simple {{ item.name }} {{ item.root }} {{ item.type }}"
with_items: "{{ crush_rules | unique }}"
changed_when: false
failed_when: false
run_once: true
- name: get id for new default crush rule
command: "{{ docker_exec_cmd }} ceph --cluster {{ cluster }} osd -f json crush rule dump {{ item.name }}"
register: info_ceph_default_crush_rule
changed_when: false
failed_when: false
with_items: "{{ crush_rules }}"
when: item.default
- name: set crush rule info as fact
set_fact:
info_ceph_default_crush_rule_yaml: "{{ info_ceph_default_crush_rule.results[0].stdout|from_json() }}"
when: info_ceph_default_crush_rule.results|length > 0
- name: insert new default crush rule into daemon to prevent restart
command: "{{ docker_exec_cmd }} ceph --cluster {{ cluster }} daemon mon.{{ monitor_name }} config set osd_pool_default_crush_replicated_ruleset {{ info_ceph_default_crush_rule_yaml.rule_id }}"
changed_when: false
failed_when: false
when: info_ceph_default_crush_rule.results|length > 0
- name: add new default crush rule to ceph.conf
ini_file:
dest: "/etc/ceph/{{ cluster }}.conf"
section: "global"
option: "osd pool default crush replicated ruleset"
value: "{{ info_ceph_default_crush_rule_yaml.rule_id }}"
when: info_ceph_default_crush_rule.results|length > 0
- name: move rbd pool to new default root
command: "{{ docker_exec_cmd }} ceph --cluster {{ cluster }} osd pool set rbd crush_ruleset {{ info_ceph_default_crush_rule_yaml.rule_id }}"
changed_when: false
failed_when: false
run_once: true
when: info_ceph_default_crush_rule.results|length > 0