Strategy Plugins¶
Strategy plugins control the flow of play execution by handling task and host scheduling.
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 ansible.cfg.
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. The default is the linear plugin. You can change this default in Ansible configuration using an environment variable:
export ANSIBLE_STRATEGY=free
or in the ansible.cfg file:
[defaults]
strategy=linear
You can also specify the strategy plugin in the play via the strategy keyword in a play:
- 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
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.
See also
- Intro to playbooks
An introduction to playbooks
- Inventory Plugins
Ansible inventory plugins
- Callback Plugins
Ansible callback plugins
- Using filters to manipulate data
Jinja2 filter plugins
- Tests
Jinja2 test plugins
- Lookups
Jinja2 lookup plugins
- User Mailing List
Have a question? Stop by the google group!
- irc.freenode.net
#ansible IRC chat channel