Setting configuration options using the ceph_config module

Log in to the Ansible administration node.

Navigate to the /usr/share/cephadm-ansible directory on the Ansible administration node:

Example

[ansible@admin ~]$ cd /usr/share/cephadm-ansible

Create a playbook with configuration changes:

Syntax

sudo vi PLAYBOOK_FILENAME.yml

---
- name: PLAY_NAME
  hosts: ADMIN_HOST
  become: USE_ELEVATED_PRIVILEGES
  gather_facts: GATHER_FACTS_ABOUT_REMOTE_HOSTS
  tasks:
    - name: NAME_OF_TASK
      ceph_config:
        action: GET_OR_SET
        who: DAEMON_TO_SET_CONFIGURATION_TO
        option: CEPH_CONFIGURATION_OPTION
        value: VALUE_OF_PARAMETER_TO_SET

    - name: NAME_OF_TASK
      ceph_config:
        action: GET_OR_SET
        who: DAEMON_TO_SET_CONFIGURATION_TO
        option: CEPH_CONFIGURATION_OPTION
      register: REGISTER_NAME

    - name: NAME_OF_TASK
      debug:
        msg: "MESSAGE_TO_DISPLAY {{ REGISTER_NAME.stdout }}"

Example

[ansible@admin cephadm-ansible]$ sudo vi change_configuration.yml

---
- name: set pool delete
  hosts: host01
  become: true
  gather_facts: false
  tasks:
    - name: set the allow pool delete option
      ceph_config:
        action: set
        who: mon
        option: mon_allow_pool_delete
        value: true

    - name: get the allow pool delete setting
      ceph_config:
        action: get
        who: mon
        option: mon_allow_pool_delete
      register: verify_mon_allow_pool_delete

    - name: print current mon_allow_pool_delete setting
      debug:
        msg: "the value of 'mon_allow_pool_delete' is {{ verify_mon_allow_pool_delete.stdout }}"

In this example, the playbook first sets the mon_allow_pool_delete option to false. The playbook then gets the current mon_allow_pool_delete setting and displays the value in the Ansible output.

Run the playbook:

Syntax

ansible-playbook -i INVENTORY_FILE _PLAYBOOK_FILENAME.yml

Example

[ansible@admin cephadm-ansible]$ ansible-playbook -i hosts change_configuration.yml