openstack-ansible/playbooks/roles/ceph_client/tasks/ceph_get_mon_host.yml
Serge van Ginderachter b878370a0b Add Ceph/RBD support to playbooks
Currently the playbooks do not allow Ceph to be configured as a backend
for Cinder, Glance or Nova. This commit adds a new role called
ceph_client to do the required configuration of the hosts and updates
the service roles to include the required configuration file changes.
This commit requires that a Ceph cluster already exists and does not
make any changes to that cluster.

ceph_client role, run on the OpenStack service hosts
  - configures the Ceph apt repo
  - installs any required Ceph dependencies
  - copies the ceph.conf file and appropriate keyring file to /etc/ceph
  - creates the necessary libvirt secrets

os_glance role
glance-api.conf will set the following variables for Ceph:
  - [DEFAULT]/show_image_direct_url
  - [glance_store]/stores
  - [glance_store]/rbd_store_pool
  - [glance_store]/rbd_store_user
  - [glance_store]/rbd_store_ceph_conf
  - [glance_store]/rbd_store_chunk_size

os_nova role
nova.conf will set the following variables for Ceph:
  - [libvirt]/rbd_user
  - [libvirt]/rbd_secret_uuid
  - [libvirt]/images_type
  - [libvirt]/images_rbd_pool
  - [libvirt]/images_rbd_ceph_conf
  - [libvirt]/inject_password
  - [libvirt]/inject_key
  - [libvirt]/inject_partition
  - [libvirt]/live_migration_flag

os_cinder is not updated because ceph is defined as a backend and that
is generated from a dictionary of the config, for an example backend
config, see etc/openstack_deploy/openstack_user_config.yml.example

pw-token-gen.py is updated so that variables ending in uuid are assigned
a UUID.

DocImpact
Implements: blueprint ceph-block-devices
Closes-Bug: #1455238
Change-Id: Ie484ce0bbb93adc53c30be32f291aa5058b20028
2015-08-01 19:49:00 +01:00

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---
# 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.
# look for 1 ceph monitor host that is up
- name: Verify Ceph monitors are up
# using netcat instead of wait_for allows to both check the rc and the
# output, rc not being available using wait_for + failed_when: false
# failed_when: false is needed to not loose any hosts, as this check expects
# some to be down.
local_action: command nc -w 1 {{ item }} 22
with_items: '{{ ceph_mons }}'
changed_when: false
failed_when: false
register: ceph_mon_upcheck
tags:
- ceph-config-create-config
- ceph-auth-client-keyrings
- ceph-auth-nova-libvirt-secret
- name: Set ceph_mon_host to an online monitor host
set_fact:
ceph_mon_host: '{{ item.item }}'
when: item.rc == 0 and "OpenSSH" in item.stdout
with_items: ceph_mon_upcheck.results
tags:
- ceph-config-create-config
- ceph-auth-client-keyrings
- ceph-auth-nova-libvirt-secret