blob: 3a90b56c380748780f03ca952a24ca4246b158e8 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
|
.. _strategy_plugins:
Strategy plugins
================
.. contents::
:local:
:depth: 2
Strategy plugins control the flow of play execution by handling task and host scheduling. For more information on using strategy plugins and other ways to control execution order, see :ref:`playbooks_strategies`.
.. _enable_strategy:
Enabling strategy plugins
-------------------------
All strategy plugins shipped with Ansible are enabled by default. You can enable a custom strategy plugin by
putting it in one of the lookup directory sources configured in :ref:`ansible.cfg <ansible_configuration_settings>`.
.. _using_strategy:
Using strategy plugins
----------------------
Only one strategy plugin can be used in a play, but you can use different ones for each play in a playbook or ansible run. By default Ansible uses the :ref:`linear <linear_strategy>` plugin. You can change this default in Ansible :ref:`configuration <ansible_configuration_settings>` using an environment variable:
.. code-block:: shell
export ANSIBLE_STRATEGY=free
or in the `ansible.cfg` file:
.. code-block:: ini
[defaults]
strategy=linear
You can also specify the strategy plugin in the play via the :ref:`strategy keyword <playbook_keywords>` in a play:
.. code-block:: yaml
- hosts: all
strategy: debug
tasks:
- copy: src=myhosts dest=/etc/hosts
notify: restart_tomcat
- package: name=tomcat state=present
handlers:
- name: restart_tomcat
service: name=tomcat state=restarted
.. _strategy_plugin_list:
Plugin list
-----------
You can use ``ansible-doc -t strategy -l`` to see the list of available plugins.
Use ``ansible-doc -t strategy <plugin name>`` to see plugin-specific specific documentation and examples.
.. seealso::
:ref:`about_playbooks`
An introduction to playbooks
:ref:`inventory_plugins`
Inventory plugins
:ref:`callback_plugins`
Callback plugins
:ref:`filter_plugins`
Filter plugins
:ref:`test_plugins`
Test plugins
:ref:`lookup_plugins`
Lookup plugins
`User Mailing List <https://groups.google.com/group/ansible-devel>`_
Have a question? Stop by the google group!
:ref:`communication_irc`
How to join Ansible chat channels
|
