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add add_host action plugin - add hosts to inventory during a playbook

run - lets act on those hosts in the next play
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commit 4ae9d72a636ab10f7bf0546c88261901125f62af 1 parent 7ebbace
@skvidal authored
Showing with 93 additions and 0 deletions.
  1. +70 −0 lib/ansible/runner/action_plugins/add_host.py
  2. +23 −0 library/add_host
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70 lib/ansible/runner/action_plugins/add_host.py
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+# Copyright 2012, Seth Vidal <skvidal@fedoraproject.org>
+#
+# This file is part of Ansible
+#
+# Ansible is free software: you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+#
+# Ansible is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with Ansible. If not, see <http://www.gnu.org/licenses/>.
+
+import ansible
+
+from ansible.callbacks import vv
+from ansible.errors import AnsibleError as ae
+from ansible.runner.return_data import ReturnData
+from ansible.utils import parse_kv, template
+from ansible.inventory.host import Host
+from ansible.inventory.group import Group
+
+class ActionModule(object):
+ ''' Create inventory hosts and groups in the memory inventory'''
+
+ ### We need to be able to modify the inventory
+ BYPASS_HOST_LOOP = True
+
+ def __init__(self, runner):
+ self.runner = runner
+
+ def run(self, conn, tmp, module_name, module_args, inject):
+ args = parse_kv(self.runner.module_args)
+ if not 'hostname' in args:
+ raise ae("'hostname' is a required argument.")
+
+ vv("created 'add_host' ActionModule: hostname=%s"%(args['hostname']))
+
+
+ result = {'changed': True}
+
+ new_host = Host(args['hostname'])
+ inventory = self.runner.inventory
+
+ # add the new host to the 'all' group
+ allgroup = inventory.get_group('all')
+ allgroup.add_host(new_host)
+ result['changed'] = True
+
+ # add it to the group if that was specified
+ if 'groupname' in args:
+ if not inventory.get_group(args['groupname']):
+ new_group = Group(args['groupname'])
+ inventory.add_group(new_group)
+
+ ngobj = inventory.get_group(args['groupname'])
+ ngobj.add_host(new_host)
+ vv("created 'add_host' ActionModule: groupname=%s"%(args['groupname']))
+ result['new_group'] = args['groupname']
+
+ result['new_host'] = args['hostname']
+
+ return ReturnData(conn=conn, comm_ok=True, result=result)
+
+
+
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23 library/add_host
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+# -*- mode: python -*-
+
+DOCUMENTATION = '''
+---
+module: add_host
+short_description: add a host (and alternatively a group) to the ansible-playbook in-memory inventory
+description:
+ - Use variables to create new hosts and groups in inventory for use in later plays of the same playbook
+version_added: 0.9
+options:
+ hostname:
+ description:
+ - The hostname/ip of the host to add to the inventory
+ required: true
+ groupname:
+ description:
+ - The groupname to add the hostname to.
+ required: false
+author: Seth Vidal
+examples:
+ - description: add host to group 'just_created'
+ code: add_host hostname=${ip_from_ec2create} groupname=just_created
+'''

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