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Looping! With items! See examples/playbook/loop_with_items.yml for details

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Michael DeHaan 2012-04-14 09:55:24 -04:00
parent 579bd1d417
commit 31d4ee32d1
2 changed files with 54 additions and 1 deletions
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30
examples/playbooks/loop_with_items.yml Normal file
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@ -0,0 +1,30 @@
---
# this is an example of how to run repeated task elements over lists
# of items, for example, installing multiple packages or configuring
# multiple users
- hosts: all
user: root
tasks:
- name: install $item
action: yum pkg=$item state=installed
with_items:
- cobbler
- httpd
- name: configure user $item
action: user name=$item state=present groups=wheel
with_items:
- testuser1
- testuser2
- name: remove user $item
action: user name=$item state=absent
with_items:
- testuser1
- testuser2

25
lib/ansible/playbook.py
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@ -163,7 +163,30 @@ class PlayBook(object):
self._include_tasks(play, task, dirname, new_tasks)
else:
new_tasks.append(task)
play['tasks'] = new_tasks
# now new_tasks contains a list of tasks, but tasks may contain
# lists of with_items to loop over. Do that.
# TODO: refactor into subfunction
new_tasks2 = []
for task in new_tasks:
if 'with_items' in task:
for item in task['with_items']:
produced_task = {}
name = task.get('name', task.get('action', 'unnamed task'))
action = task.get('action', None)
only_if = task.get('only_if', None)
if action is None:
raise errors.AnsibleError('action is required')
produced_task = task.copy()
produced_task['action'] = utils.template(action, dict(item=item))
produced_task['name'] = utils.template(name, dict(item=item))
if only_if:
produced_task['only_if'] = utils.template(only_if, dict(item=item))
new_tasks2.append(produced_task)
else:
new_tasks2.append(task)
play['tasks'] = new_tasks2
# process handlers as well as imported handlers
new_handlers = []