openstack-ansible-ceph_client/tasks/ceph_auth.yml

---
# Copyright 2015, Serge van Ginderachter <serge@vanginderachter.be>
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
#     http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.

## Ceph client keyrings

#TODO: also be able to create users, keys and pools on ceph
- name: Retrieve keyrings for openstack clients from ceph cluster
  # the first get makes sure the client exists, so the second only runs when it
  # exists, the trick is the different output of both, the second has the right
  # output to put in a keyring; ceph admin should have already created the user
  shell: ceph auth get client.{{ item.1 }} >/dev/null && ceph auth get-or-create client.{{ item.1 }}
  with_subelements:
    - "{{ ceph_components + ceph_extra_components }}"
    - client
  when:
    - inventory_hostname in groups[item.0.component]
    - (item.0.component != 'cinder_backup' or
       ((cinder_service_backup_program_enabled is defined and
         cinder_service_backup_program_enabled | bool) and
         (cinder_service_backup_driver is defined and
          cinder_service_backup_driver == 'cinder.backup.drivers.ceph')))
  changed_when: false
  delegate_to: '{{ ceph_mon_host }}'
  register: ceph_client_keyrings
  until: ceph_client_keyrings|success
  retries: 3
  tags:
    - ceph-config
    - always

- name: Create cephkeys_access_group group
  group:
    name: "{{ cephkeys_access_group }}"
  tags:
    - ceph-install

- name: Add OpenStack service to cephkeys_access_group group
  user:
    name: "{{ openstack_service_system_user }}"
    groups: "{{ cephkeys_access_group }}"
    append: yes
  notify:
    - Restart os services

- name: Provision ceph client keyrings
  # TODO: do we really need a template for this? what's the added value compare to
  # ceph get-or-create ... ... -o file?
  template:
    src:      ceph.client.keyring.j2
    dest:     /etc/ceph/ceph.client.{{ item.item.1 }}.keyring
    backup:   true
    owner:    root
    # TODO
    group:    "{{ cephkeys_access_group }}"
    # ideally the permission will be: 0600 and the owner/group will be either
    # glance , nova or cinder. For keys that require access by different users
    # (the cinder one) we should probably create a group 'cephkeys' and add
    # nova/cinder to it.
    # If I'm correct, the use case for multiple users is on the computre nodes,
    # access needed by users libvirt-qemu and nova
    mode:     0640
  with_items: "{{ ceph_client_keyrings.results }}"
  when:
    - not item | skipped
    - inventory_hostname in groups[item.item.0.component]
  notify:
    - Restart os services

- name: Make sure libvirt is started
  service:
    name: "{{ libvirt_service_name }}"
    state: "started"
  when: inventory_hostname in groups.nova_compute

## Ceph nova client libvirt secret
- name: Retrieve nova secret from cephcluster
  command: ceph auth get-key client.{{ nova_ceph_client }}
  when:
    - inventory_hostname in groups.nova_compute
  changed_when: false
  delegate_to: '{{ ceph_mon_host }}'
  register: ceph_nova_secret
  tags:
    - always

- name: Check if nova secret is defined in libvirt
  shell: virsh secret-list|grep {{ nova_ceph_client_uuid }}
  when:
    - inventory_hostname in groups.nova_compute
  changed_when: false
  failed_when:  false
  register: libvirt_nova_defined
  tags:
    - always

- name: Provide xml file to create the secret
  template:
    src: secret.xml.j2
    dest: /tmp/nova-secret.xml
    mode: "0600"
  with_items:
    - secret_uuid: "{{ nova_ceph_client_uuid }}"
      client_name: "{{ nova_ceph_client }}"
  when:
    - inventory_hostname in groups.nova_compute
    - libvirt_nova_defined.rc is defined
    - libvirt_nova_defined.rc != 0
  tags:
    - always

- name: Define libvirt nova secret
  command: virsh secret-define --file /tmp/nova-secret.xml
  when:
    - inventory_hostname in groups.nova_compute
    - libvirt_nova_defined.rc is defined
    - libvirt_nova_defined.rc != 0
  notify:
    - Restart os services
  tags:
    - always

- name: Check if nova secret value is set in libvirt
  command: virsh secret-get-value {{ nova_ceph_client_uuid }}
  when:
    - inventory_hostname in groups.nova_compute
  changed_when: false
  failed_when:  false
  register: libvirt_nova_set
  tags:
    - always

- name: Set nova secret value in libvirt
  command: virsh secret-set-value --secret {{ nova_ceph_client_uuid }} --base64 {{ ceph_nova_secret.stdout }}
  changed_when: false
  when:
    - inventory_hostname in groups.nova_compute
    - libvirt_nova_set.rc is defined
    - libvirt_nova_set.rc != 0 or
      (libvirt_nova_set.rc == 0 and
       libvirt_nova_set.stdout != ceph_nova_secret.stdout)
  notify:
    - Restart os services
  tags:
    - ceph-config

- name: Remove libvirt nova secret file
  file:
    path: "/tmp/nova-secret.xml"
    state: "absent"
  when:
    - inventory_hostname in groups.nova_compute and libvirt_nova_set
  tags:
    - always

- name: Detect correct group for extra auth
  set_fact:
    ceph_in_extra_auth_group: True
  with_items: "{{ ceph_extra_auth_groups }}"
  when:
    - ceph_extra_confs is defined
    - inventory_hostname in groups[item]

- include: ceph_auth_extra.yml
  when:
    - ceph_in_extra_auth_group is defined
    - ceph_in_extra_auth_group | bool
  static: no

- name: Detect extra nova uuid secret
  set_fact:
    ceph_extra_nova_uuid: True
  with_items: "{{ ceph_extra_confs | default([]) }}"
  when:
    - inventory_hostname in groups[ceph_extra_compute_group]
    - item.secret_uuid is defined

- include: ceph_auth_extra_compute.yml
  when:
    - ceph_extra_nova_uuid is defined
    - ceph_extra_nova_uuid | bool
  static: no