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- name: a task
  template: src=foobar dst=bar
  notify:
    - handler A
    - handler B

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---
settings:
  package_name_format: 'openstack-{{ project.name }}-{{ settings.version }}'
  base_path: '/opt/bbc/openstack-{{ settings.version }}/'
  version: 10.0-bbc0
  force_overwrite: true
  gerrit_dependencies: false
  output_dir: /tmp/bbc-packages

projects:

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+------------------+---------------+------+---------+-------+----------------------------+
|      Binary      |      Host     | Zone |  Status | State |         Updated_at         |
+------------------+---------------+------+---------+-------+----------------------------+
| cinder-scheduler |     ds1418    | nova | enabled |  down | 2015-08-27T21:30:19.000000 |
| cinder-scheduler |     ds1419    | nova | enabled |  down | 2015-08-27T21:30:09.000000 |
|  cinder-volume   | ds1421@nimble | nova | enabled |   up  | 2015-08-27T21:31:24.000000 |
+------------------+---------------+------+---------+-------+----------------------------+

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- name: create nova directories
  file:
    dest: "{{ item.value.path }}"
    owner: nova
    group: "{{ item.value.group | default('nova') }}"
    mode: "{{ item.value.mode | default('omit') }}"
    state: directory
  with_dict:
    config:
      path: /etc/nova

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---
- name: print a variable
  debug:
    var: derp
  changed_when: true
  notify: say hi

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Traceback (most recent call last):
  File "/usr/local/bin/keystone", line 6, in <module>
    from keystoneclient.shell import main
  File "/usr/local/lib/python2.7/dist-packages/keystoneclient/shell.py", line 31, in <module>
    from keystoneclient import access
  File "/usr/local/lib/python2.7/dist-packages/keystoneclient/access.py", line 21, in <module>
    from oslo_utils import timeutils
  File "/usr/local/lib/python2.7/dist-packages/oslo_utils/timeutils.py", line 31, in <module>
    from oslo_utils import reflection
  File "/usr/local/lib/python2.7/dist-packages/oslo_utils/reflection.py", line 44, in <module>

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2016-02-12 00:47:01.126 3936 DEBUG nova.api.openstack.wsgi [-] Calling method '<bound method Versions.index of <nova.api.openstack.compute.versions.Versions object at 0x7f05a0acfbd0>>' _process_stack /opt/bbc/openstack-11.0-bbc153/nova/local/lib/python2.7/site-packages/nova/api/openstack/wsgi.py:783
2016-02-12 00:47:01.129 3936 INFO nova.osapi_compute.wsgi.server [-] Traceback (most recent call last):
  File "/opt/bbc/openstack-11.0-bbc153/nova/local/lib/python2.7/site-packages/eventlet/wsgi.py", line 501, in handle_one_response
    write(b''.join(towrite))
  File "/opt/bbc/openstack-11.0-bbc153/nova/local/lib/python2.7/site-packages/eventlet/wsgi.py", line 442, in write
    _writelines(towrite)
  File "/opt/bbc/openstack-11.0-bbc153/nova/local/lib/python2.7/site-packages/eventlet/support/__init__.py", line 62, in safe_writelines
    writeall(fd, item)
  File "/opt/bbc/openstack-11.0-bbc153/nova/local/lib/python2.7/site-packages/eventlet/support/__init__.py", line 67, in writeall
    fd.write(buf)

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multi-region cloud​
customer can address cloud resources across multiple regions. customer has a single set of api endpoint and management interface used to manage cloud resources across all regions.the_cloud
--------------
     |-- hong kong region
     |-- london region
     |-- seattle regionDashboard
1a. User logs into Horizon Dashboard
2a. User sees resources presented in subsets (regions)
3a. User can manage and deploy resources across different regionsCLI/API
1b. User authenticates via CLI/API

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- name: update-alternatives
  alternatives: name={{ item }}
                path={{ openstack_package.virtualenv_base }}/{{ project_name }}/bin/{{ item }}
                link=/usr/local/bin/{{ item }}
  with_items: "{{ alternatives }}"
  when: alternatives is defined
  
  
  results in 
  

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  subnets:
    - name: internal_v4
      network_name: internal
      ip_version: 4
      cidr: 172.16.255.0/24
      pool_start: 172.16.255.2
      pool_end: 172.16.255.254
      enable_dhcp: "true"
      gateway_ip: 172.16.255.1
      dns_nameservers: '8.8.8.8,8.8.4.4'