VMware: Use environment variable for connection (#37726)

This fix adds environment variables for connection in vmware_*
modules.

Signed-off-by: Abhijeet Kasurde <akasurde@redhat.com>

lib/ansible/module_utils/vmware.py

@@ -34,6 +34,7 @@ except ImportError:
 from ansible.module_utils._text import to_text
 from ansible.module_utils.urls import fetch_url
 from ansible.module_utils.six import integer_types, iteritems, string_types
+from ansible.module_utils.basic import env_fallback
 
 
 class TaskError(Exception):
@@ -433,13 +434,27 @@ def list_snapshots(vm):
 
 
 def vmware_argument_spec():
-
     return dict(
-        hostname=dict(type='str', required=True),
-        username=dict(type='str', aliases=['user', 'admin'], required=True),
-        password=dict(type='str', aliases=['pass', 'pwd'], required=True, no_log=True),
-        port=dict(type='int', default=443),
-        validate_certs=dict(type='bool', required=False, default=True),
+        hostname=dict(type='str',
+                      required=False,
+                      fallback=(env_fallback, ['VMWARE_HOST']),
+                      ),
+        username=dict(type='str',
+                      aliases=['user', 'admin'],
+                      required=False,
+                      fallback=(env_fallback, ['VMWARE_USER'])),
+        password=dict(type='str',
+                      aliases=['pass', 'pwd'],
+                      required=False,
+                      no_log=True,
+                      fallback=(env_fallback, ['VMWARE_PASSWORD'])),
+        port=dict(type='int',
+                  default=443,
+                  fallback=(env_fallback, ['VMWARE_PORT'])),
+        validate_certs=dict(type='bool',
+                            required=False,
+                            default=True,
+                            fallback=(env_fallback, ['VMWARE_VALIDATE_CERTS'])),
     )
 
 
@@ -447,9 +462,24 @@ def connect_to_api(module, disconnect_atexit=True):
     hostname = module.params['hostname']
     username = module.params['username']
     password = module.params['password']
-    port = module.params['port'] or 443
+    port = module.params.get('port', 443)
     validate_certs = module.params['validate_certs']
 
+    if not hostname:
+        module.fail_json(msg="Hostname parameter is missing."
+                             " Please specify this parameter in task or"
+                             " export environment variable like 'export VMWARE_HOST=ESXI_HOSTNAME'")
+
+    if not username:
+        module.fail_json(msg="Username parameter is missing."
+                             " Please specify this parameter in task or"
+                             " export environment variable like 'export VMWARE_USER=ESXI_USERNAME'")
+
+    if not password:
+        module.fail_json(msg="Password parameter is missing."
+                             " Please specify this parameter in task or"
+                             " export environment variable like 'export VMWARE_PASSWORD=ESXI_PASSWORD'")
+
     if validate_certs and not hasattr(ssl, 'SSLContext'):
         module.fail_json(msg='pyVim does not support changing verification mode with python < 2.7.9. Either update '
                              'python or use validate_certs=false.')

lib/ansible/utils/module_docs_fragments/vmware.py

@@ -1,19 +1,6 @@
-# (c) 2016, Charles Paul <cpaul@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/>.
+# Copyright: (c) 2016, Charles Paul <cpaul@ansible.com>
+# Copyright: (c) 2018, Ansible Project
+# GNU General Public License v3.0+ (see COPYING or https://www.gnu.org/licenses/gpl-3.0.txt)
 
 
 class ModuleDocFragment(object):
@@ -23,26 +10,35 @@ options:
     hostname:
       description:
       - The hostname or IP address of the vSphere vCenter.
-        required: True
+      - If the value is not specified in the task, the value of environment variable C(VMWARE_HOST) will be used instead.
+      - Environment variable supported added in version 2.6.
+      required: False
     username:
       description:
       - The username of the vSphere vCenter.
-        required: True
+      - If the value is not specified in the task, the value of environment variable C(VMWARE_USER) will be used instead.
+      - Environment variable supported added in version 2.6.
+      required: False
       aliases: ['user', 'admin']
     password:
       description:
       - The password of the vSphere vCenter.
-        required: True
+      - If the value is not specified in the task, the value of environment variable C(VMWARE_PASSWORD) will be used instead.
+      - Environment variable supported added in version 2.6.
+      required: False
       aliases: ['pass', 'pwd']
     validate_certs:
       description:
-            - Allows connection when SSL certificates are not valid. Set to
-              false when certificates are not trusted.
+      - Allows connection when SSL certificates are not valid. Set to C(false) when certificates are not trusted.
+      - If the value is not specified in the task, the value of environment variable C(VMWARE_VALIDATE_CERTS) will be used instead.
+      - Environment variable supported added in version 2.6.
       default: 'True'
       type: bool
     port:
       description:
       - The port number of the vSphere vCenter or ESXi server.
+      - If the value is not specified in the task, the value of environment variable C(VMWARE_PORT) will be used instead.
+      - Environment variable supported added in version 2.6.
       required: False
       default: 443
       version_added: 2.5

test/integration/targets/vmware_guest/tasks/create_d1_c1_f0_env.yml

@@ -0,0 +1,137 @@
+# Test code for the vmware_guest module.
+# Copyright: (c) 2018 Abhijeet Kasurde <akasurde@redhat.com>
+# GNU General Public License v3.0+ (see COPYING or https://www.gnu.org/licenses/gpl-3.0.txt)
+
+- name: Wait for Flask controller to come up online
+  wait_for:
+    host: "{{ vcsim }}"
+    port: 5000
+    state: started
+
+- name: kill vcsim
+  uri:
+    url: http://{{ vcsim }}:5000/killall
+- name: start vcsim with no folders
+  uri:
+    url: http://{{ vcsim }}:5000/spawn?datacenter=1&cluster=1&folder=0
+  register: vcsim_instance
+
+- name: Wait for Flask controller to come up online
+  wait_for:
+    host: "{{ vcsim }}"
+    port: 443
+    state: started
+
+- name: get a list of VMS from vcsim
+  uri:
+    url: http://{{ vcsim }}:5000/govc_find?filter=VM
+  register: vmlist
+
+- debug: var=vcsim_instance
+- debug: var=vmlist
+
+
+- name: create new VMs without connection parameters
+  vmware_guest:
+    name: "{{ 'newvm_' + item|basename }}"
+    guest_id: centos64Guest
+    datacenter: "{{ (item|basename).split('_')[0] }}"
+    hardware:
+        num_cpus: 4
+        memory_mb: 512
+    disk:
+        - size: 1gb
+          type: thin
+          autoselect_datastore: True
+    state: poweredoff
+    folder: "{{ item|dirname }}"
+  with_items: "{{ vmlist['json'] }}"
+  register: clone_d1_c1_f0_env
+  ignore_errors: True
+- debug: var=clone_d1_c1_f0_env
+
+- name: assert that changes were not made
+  assert:
+    that:
+        - "clone_d1_c1_f0_env.results|map(attribute='changed')|unique|list == [False]"
+
+- name: create new VMs using only hostname environment variable
+  vmware_guest:
+    name: "{{ 'newvm_' + item|basename }}"
+    guest_id: centos64Guest
+    datacenter: "{{ (item|basename).split('_')[0] }}"
+    hardware:
+        num_cpus: 4
+        memory_mb: 512
+    disk:
+        - size: 1gb
+          type: thin
+          autoselect_datastore: True
+    state: poweredoff
+    folder: "{{ item|dirname }}"
+  with_items: "{{ vmlist['json'] }}"
+  register: clone_d1_c1_f0_env
+  ignore_errors: True
+  environment:
+    VMWARE_HOST: "{{ vcsim }}"
+- debug: var=clone_d1_c1_f0_env
+
+- name: assert that changes were made
+  assert:
+    that:
+        - "clone_d1_c1_f0_env.results|map(attribute='changed')|unique|list == [False]"
+
+- name: create new VMs using hostname and username environment variable
+  vmware_guest:
+    name: "{{ 'newvm_' + item|basename }}"
+    guest_id: centos64Guest
+    datacenter: "{{ (item|basename).split('_')[0] }}"
+    hardware:
+        num_cpus: 4
+        memory_mb: 512
+    disk:
+        - size: 1gb
+          type: thin
+          autoselect_datastore: True
+    state: poweredoff
+    folder: "{{ item|dirname }}"
+  with_items: "{{ vmlist['json'] }}"
+  register: clone_d1_c1_f0_env
+  ignore_errors: True
+  environment:
+    VMWARE_HOST: "{{ vcsim }}"
+    VMWARE_USER: "{{ vcsim_instance['json']['username'] }}"
+- debug: var=clone_d1_c1_f0_env
+
+- name: assert that changes were not made
+  assert:
+    that:
+        - "clone_d1_c1_f0_env.results|map(attribute='changed')|unique|list == [False]"
+
+- name: create new VMs using all environment variables
+  vmware_guest:
+    name: "{{ 'newvm_' + item|basename }}"
+    guest_id: centos64Guest
+    datacenter: "{{ (item|basename).split('_')[0] }}"
+    hardware:
+        num_cpus: 4
+        memory_mb: 512
+    disk:
+        - size: 1gb
+          type: thin
+          autoselect_datastore: True
+    state: poweredoff
+    folder: "{{ item|dirname }}"
+  with_items: "{{ vmlist['json'] }}"
+  register: clone_d1_c1_f0_env
+  environment:
+    VMWARE_HOST: "{{ vcsim }}"
+    VMWARE_USER: "{{ vcsim_instance['json']['username'] }}"
+    VMWARE_PASSWORD: "{{ vcsim_instance['json']['password'] }}"
+    VMWARE_VALIDATE_CERTS: False
+- debug: var=clone_d1_c1_f0_env
+
+- name: assert that changes were made
+  assert:
+    that:
+        - "clone_d1_c1_f0_env.results|map(attribute='changed')|unique|list == [True]"