ansible/test/integration/targets/add_host/tasks/main.yml

# test code for the add_host action
# (c) 2015, Matt Davis <mdavis@ansible.com>

# 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/>.

- name: add a host to the runtime inventory
  add_host:
    name: newdynamichost
    groups: newdynamicgroup
    a_var: from add_host

- debug: msg={{hostvars['newdynamichost'].group_names}}

- name: ensure that dynamically-added host is visible via hostvars, groups, etc (there are several caches that could break this)
  assert:
    that:
    - hostvars['bogushost'] is not defined # there was a bug where an undefined host was a "type" instead of an instance- ensure this works before we rely on it
    - hostvars['newdynamichost'] is defined
    - hostvars['newdynamichost'].group_names is defined
    - "'newdynamicgroup' in hostvars['newdynamichost'].group_names"
    - hostvars['newdynamichost']['bogusvar'] is not defined
    - hostvars['newdynamichost']['a_var'] is defined
    - hostvars['newdynamichost']['a_var'] == 'from add_host'
    - groups['bogusgroup'] is not defined # same check as above to ensure that bogus groups are undefined...
    - groups['newdynamicgroup'] is defined
    - "'newdynamichost' in groups['newdynamicgroup']"

# Tests for idempotency
- name: Add testhost01 dynamic host
  add_host:
    name: testhost01
  register: add_testhost01

- name: Try adding testhost01 again, with no changes
  add_host:
    name: testhost01
  register: add_testhost01_idem

- name: Add a host variable to testhost01
  add_host:
    name: testhost01
    foo: bar
  register: hostvar_testhost01

- name: Add the same host variable to testhost01, with no changes
  add_host:
    name: testhost01
    foo: bar
  register: hostvar_testhost01_idem

- name: Add another host, testhost02
  add_host:
    name: testhost02
  register: add_testhost02

- name: Add it again for good measure
  add_host:
    name: testhost02
  register: add_testhost02_idem

- name: Add testhost02 to a group
  add_host:
    name: testhost02
    groups:
      - testhostgroup
  register: add_group_testhost02

- name: Add testhost01 to the same group
  add_host:
    name: testhost01
    groups:
      - testhostgroup
  register: add_group_testhost01

- name: Add testhost02 to the group again
  add_host:
    name: testhost02
    groups:
      - testhostgroup
  register: add_group_testhost02_idem

- name: Add testhost01 to the group again
  add_host:
    name: testhost01
    groups:
      - testhostgroup
  register: add_group_testhost01_idem

- assert:
    that:
      - add_testhost01 is changed
      - add_testhost01_idem is not changed
      - hostvar_testhost01 is changed
      - hostvar_testhost01_idem is not changed
      - add_testhost02 is changed
      - add_testhost02_idem is not changed
      - add_group_testhost02 is changed
      - add_group_testhost01 is changed
      - add_group_testhost02_idem is not changed
      - add_group_testhost01_idem is not changed
      - groups['testhostgroup']|length == 2
      - "'testhost01' in groups['testhostgroup']"
      - "'testhost02' in groups['testhostgroup']"
      - hostvars['testhost01']['foo'] == 'bar'