Rewrite of na_ontap_snapshot to follow NetAppModule, add new option to rename snapshot, bug fix to modify snapmirror_label (#52297)
* Revert "changes to clusteR"
This reverts commit 33ee1b71e4bc8435fb315762a871f8c4cb6c5f80.
* upadets
* fix docs
* Revert "Revert "changes to clusteR""
This reverts commit 8e56b999e6.
* review change
This commit is contained in:
Chris Archibald
John R Barker
parent
b187e5a5c0
commit
1a306ce871
2 changed files with 353 additions and 114 deletions
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@ -1,6 +1,6 @@
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#!/usr/bin/python
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# (c) 2018, NetApp, Inc
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# (c) 2018-2019, NetApp, Inc
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# GNU General Public License v3.0+
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# (see COPYING or https://www.gnu.org/licenses/gpl-3.0.txt)
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@ -32,6 +32,10 @@ options:
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Name of the snapshot to be managed.
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The maximum string length is 256 characters.
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required: true
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from_name:
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description:
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- Name of the existing snapshot to be renamed to.
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version_added: '2.8'
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volume:
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description:
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- Name of the volume on which the snapshot is to be created.
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@ -65,37 +69,37 @@ EXAMPLES = """
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tags:
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- create
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na_ontap_snapshot:
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state=present
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snapshot={{ snapshot name }}
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volume={{ vol name }}
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comment="i am a comment"
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vserver={{ vserver name }}
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username={{ netapp username }}
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password={{ netapp password }}
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hostname={{ netapp hostname }}
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state: present
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snapshot: "{{ snapshot name }}"
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volume: "{{ vol name }}"
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comment: "i am a comment"
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vserver: "{{ vserver name }}"
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username: "{{ netapp username }}"
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password: "{{ netapp password }}"
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hostname: "{{ netapp hostname }}"
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- name: delete SnapShot
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tags:
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- delete
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na_ontap_snapshot:
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state=absent
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snapshot={{ snapshot name }}
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volume={{ vol name }}
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vserver={{ vserver name }}
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username={{ netapp username }}
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password={{ netapp password }}
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hostname={{ netapp hostname }}
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state: absent
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snapshot: "{{ snapshot name }}"
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volume: "{{ vol name }}"
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vserver: "{{ vserver name }}"
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username: "{{ netapp username }}"
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password: "{{ netapp password }}"
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hostname: "{{ netapp hostname }}"
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- name: modify SnapShot
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tags:
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- modify
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na_ontap_snapshot:
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state=present
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snapshot={{ snapshot name }}
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comment="New comments are great"
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volume={{ vol name }}
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vserver={{ vserver name }}
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username={{ netapp username }}
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password={{ netapp password }}
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hostname={{ netapp hostname }}
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state: present
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snapshot: "{{ snapshot name }}"
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comment: "New comments are great"
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volume: "{{ vol name }}"
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vserver: "{{ vserver name }}"
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username: "{{ netapp username }}"
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password: "{{ netapp password }}"
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hostname: "{{ netapp hostname }}"
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"""
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RETURN = """
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@ -103,6 +107,7 @@ RETURN = """
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import traceback
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from ansible.module_utils.basic import AnsibleModule
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from ansible.module_utils.netapp_module import NetAppModule
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from ansible.module_utils._text import to_native
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import ansible.module_utils.netapp as netapp_utils
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@ -119,6 +124,7 @@ class NetAppOntapSnapshot(object):
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self.argument_spec.update(dict(
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state=dict(required=False, choices=[
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'present', 'absent'], default='present'),
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from_name=dict(required=False, type='str'),
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snapshot=dict(required=True, type="str"),
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volume=dict(required=True, type="str"),
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async_bool=dict(required=False, type="bool", default=False),
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@ -134,30 +140,54 @@ class NetAppOntapSnapshot(object):
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supports_check_mode=True
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)
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parameters = self.module.params
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# set up state variables
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# These are the required variables
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self.state = parameters['state']
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self.snapshot = parameters['snapshot']
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self.vserver = parameters['vserver']
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# these are the optional variables for creating a snapshot
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self.volume = parameters['volume']
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self.async_bool = parameters['async_bool']
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self.comment = parameters['comment']
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self.snapmirror_label = parameters['snapmirror_label']
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# these are the optional variables for deleting a snapshot\
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self.ignore_owners = parameters['ignore_owners']
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self.snapshot_instance_uuid = parameters['snapshot_instance_uuid']
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self.na_helper = NetAppModule()
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self.parameters = self.na_helper.set_parameters(self.module.params)
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if HAS_NETAPP_LIB is False:
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self.module.fail_json(
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msg="the python NetApp-Lib module is required")
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else:
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self.server = netapp_utils.setup_na_ontap_zapi(
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module=self.module, vserver=self.vserver)
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module=self.module, vserver=self.parameters['vserver'])
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return
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def get_snapshot(self, snapshot_name=None):
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"""
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Checks to see if a snapshot exists or not
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:return: Return True if a snapshot exists, False if it doesn't
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"""
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if snapshot_name is None:
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snapshot_name = self.parameters['snapshot']
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snapshot_obj = netapp_utils.zapi.NaElement("snapshot-get-iter")
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desired_attr = netapp_utils.zapi.NaElement("desired-attributes")
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snapshot_info = netapp_utils.zapi.NaElement('snapshot-info')
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comment = netapp_utils.zapi.NaElement('comment')
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snapmirror_label = netapp_utils.zapi.NaElement('snapmirror-label')
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# add more desired attributes that are allowed to be modified
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snapshot_info.add_child_elem(comment)
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snapshot_info.add_child_elem(snapmirror_label)
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desired_attr.add_child_elem(snapshot_info)
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snapshot_obj.add_child_elem(desired_attr)
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# compose query
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query = netapp_utils.zapi.NaElement("query")
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snapshot_info_obj = netapp_utils.zapi.NaElement("snapshot-info")
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snapshot_info_obj.add_new_child("name", snapshot_name)
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snapshot_info_obj.add_new_child("volume", self.parameters['volume'])
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query.add_child_elem(snapshot_info_obj)
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snapshot_obj.add_child_elem(query)
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result = self.server.invoke_successfully(snapshot_obj, True)
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return_value = None
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if result.get_child_by_name('num-records') and \
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int(result.get_child_content('num-records')) == 1:
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attributes_list = result.get_child_by_name('attributes-list')
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snap_info = attributes_list.get_child_by_name('snapshot-info')
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return_value = {'comment': snap_info.get_child_content('comment')}
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if snap_info.get_child_by_name('snapmirror-label'):
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return_value['snapmirror_label'] = snap_info.get_child_content('snapmirror-label')
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else:
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return_value['snapmirror_label'] = None
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return return_value
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def create_snapshot(self):
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"""
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Creates a new snapshot
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@ -165,21 +195,21 @@ class NetAppOntapSnapshot(object):
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snapshot_obj = netapp_utils.zapi.NaElement("snapshot-create")
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# set up required variables to create a snapshot
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snapshot_obj.add_new_child("snapshot", self.snapshot)
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snapshot_obj.add_new_child("volume", self.volume)
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snapshot_obj.add_new_child("snapshot", self.parameters['snapshot'])
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snapshot_obj.add_new_child("volume", self.parameters['volume'])
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# Set up optional variables to create a snapshot
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if self.async_bool:
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snapshot_obj.add_new_child("async", self.async_bool)
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if self.comment:
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snapshot_obj.add_new_child("comment", self.comment)
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if self.snapmirror_label:
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if self.parameters.get('async_bool'):
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snapshot_obj.add_new_child("async", self.parameters['async_bool'])
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if self.parameters.get('comment'):
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snapshot_obj.add_new_child("comment", self.parameters['comment'])
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if self.parameters.get('snapmirror_label'):
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snapshot_obj.add_new_child(
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"snapmirror-label", self.snapmirror_label)
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"snapmirror-label", self.parameters['snapmirror_label'])
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try:
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self.server.invoke_successfully(snapshot_obj, True)
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except netapp_utils.zapi.NaApiError as error:
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self.module.fail_json(msg='Error creating snapshot %s: %s' %
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(self.snapshot, to_native(error)),
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(self.parameters['snapshot'], to_native(error)),
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exception=traceback.format_exc())
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def delete_snapshot(self):
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@ -189,19 +219,18 @@ class NetAppOntapSnapshot(object):
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snapshot_obj = netapp_utils.zapi.NaElement("snapshot-delete")
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# Set up required variables to delete a snapshot
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snapshot_obj.add_new_child("snapshot", self.snapshot)
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snapshot_obj.add_new_child("volume", self.volume)
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snapshot_obj.add_new_child("snapshot", self.parameters['snapshot'])
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snapshot_obj.add_new_child("volume", self.parameters['volume'])
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# set up optional variables to delete a snapshot
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if self.ignore_owners:
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snapshot_obj.add_new_child("ignore-owners", self.ignore_owners)
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if self.snapshot_instance_uuid:
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snapshot_obj.add_new_child(
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"snapshot-instance-uuid", self.snapshot_instance_uuid)
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if self.parameters.get('ignore_owners'):
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snapshot_obj.add_new_child("ignore-owners", self.parameters['ignore_owners'])
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if self.parameters.get('snapshot_instance_uuid'):
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snapshot_obj.add_new_child("snapshot-instance-uuid", self.parameters['snapshot_instance_uuid'])
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try:
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self.server.invoke_successfully(snapshot_obj, True)
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except netapp_utils.zapi.NaApiError as error:
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self.module.fail_json(msg='Error deleting snapshot %s: %s' %
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(self.snapshot, to_native(error)),
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(self.parameters['snapshot'], to_native(error)),
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exception=traceback.format_exc())
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def modify_snapshot(self):
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@ -213,95 +242,79 @@ class NetAppOntapSnapshot(object):
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# Create query object, this is the existing object
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query = netapp_utils.zapi.NaElement("query")
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snapshot_info_obj = netapp_utils.zapi.NaElement("snapshot-info")
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snapshot_info_obj.add_new_child("name", self.snapshot)
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snapshot_info_obj.add_new_child("name", self.parameters['snapshot'])
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query.add_child_elem(snapshot_info_obj)
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snapshot_obj.add_child_elem(query)
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# this is what we want to modify in the snapshot object
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attributes = netapp_utils.zapi.NaElement("attributes")
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snapshot_info_obj = netapp_utils.zapi.NaElement("snapshot-info")
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snapshot_info_obj.add_new_child("name", self.snapshot)
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if self.comment is not None:
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snapshot_info_obj.add_new_child("comment", self.comment)
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snapshot_info_obj.add_new_child("name", self.parameters['snapshot'])
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if self.parameters.get('comment'):
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snapshot_info_obj.add_new_child("comment", self.parameters['comment'])
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if self.parameters.get('snapmirror_label'):
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snapshot_info_obj.add_new_child("snapmirror-label", self.parameters['snapmirror_label'])
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attributes.add_child_elem(snapshot_info_obj)
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snapshot_obj.add_child_elem(attributes)
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try:
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self.server.invoke_successfully(snapshot_obj, True)
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except netapp_utils.zapi.NaApiError as error:
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self.module.fail_json(msg='Error modifying snapshot %s: %s' %
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(self.snapshot, to_native(error)),
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(self.parameters['snapshot'], to_native(error)),
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exception=traceback.format_exc())
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def does_snapshot_exist(self):
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def rename_snapshot(self):
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"""
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Checks to see if a snapshot exists or not
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:return: Return True if a snapshot exists, false if it dosn't
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Rename the sanpshot
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"""
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snapshot_obj = netapp_utils.zapi.NaElement("snapshot-get-iter")
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desired_attr = netapp_utils.zapi.NaElement("desired-attributes")
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snapshot_info = netapp_utils.zapi.NaElement('snapshot-info')
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comment = netapp_utils.zapi.NaElement('comment')
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# add more desired attributes that are allowed to be modified
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snapshot_info.add_child_elem(comment)
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desired_attr.add_child_elem(snapshot_info)
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snapshot_obj.add_child_elem(desired_attr)
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# compose query
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query = netapp_utils.zapi.NaElement("query")
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snapshot_info_obj = netapp_utils.zapi.NaElement("snapshot-info")
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snapshot_info_obj.add_new_child("name", self.snapshot)
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snapshot_info_obj.add_new_child("volume", self.volume)
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query.add_child_elem(snapshot_info_obj)
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snapshot_obj.add_child_elem(query)
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result = self.server.invoke_successfully(snapshot_obj, True)
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return_value = None
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# TODO: Snapshot with the same name will mess this up,
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# need to fix that later
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if result.get_child_by_name('num-records') and \
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int(result.get_child_content('num-records')) == 1:
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attributes_list = result.get_child_by_name('attributes-list')
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snap_info = attributes_list.get_child_by_name('snapshot-info')
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return_value = {'comment': snap_info.get_child_content('comment')}
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return return_value
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snapshot_obj = netapp_utils.zapi.NaElement("snapshot-rename")
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# set up required variables to rename a snapshot
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snapshot_obj.add_new_child("current-name", self.parameters['from_name'])
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snapshot_obj.add_new_child("new-name", self.parameters['snapshot'])
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snapshot_obj.add_new_child("volume", self.parameters['volume'])
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try:
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self.server.invoke_successfully(snapshot_obj, True)
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except netapp_utils.zapi.NaApiError as error:
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self.module.fail_json(msg='Error renaming snapshot %s to %s: %s' %
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(self.parameters['from_name'], self.parameters['snapshot'], to_native(error)),
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exception=traceback.format_exc())
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def apply(self):
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"""
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Check to see which play we should run
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"""
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changed = False
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comment_changed = False
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current = self.get_snapshot()
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netapp_utils.ems_log_event("na_ontap_snapshot", self.server)
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existing_snapshot = self.does_snapshot_exist()
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if existing_snapshot is not None:
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if self.state == 'absent':
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changed = True
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elif self.state == 'present' and self.comment is not None:
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if existing_snapshot['comment'] != self.comment:
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comment_changed = True
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changed = True
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rename, cd_action = None, None
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modify = {}
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if self.parameters.get('from_name'):
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current_old_name = self.get_snapshot(self.parameters['from_name'])
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rename = self.na_helper.is_rename_action(current_old_name, current)
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modify = self.na_helper.get_modified_attributes(current_old_name, self.parameters)
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else:
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if self.state == 'present':
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changed = True
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if changed:
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cd_action = self.na_helper.get_cd_action(current, self.parameters)
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if cd_action is None:
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modify = self.na_helper.get_modified_attributes(current, self.parameters)
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if self.na_helper.changed:
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if self.module.check_mode:
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pass
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else:
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if self.state == 'present':
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if not existing_snapshot:
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self.create_snapshot()
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elif comment_changed:
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self.modify_snapshot()
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elif self.state == 'absent':
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if existing_snapshot:
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self.delete_snapshot()
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self.module.exit_json(changed=changed)
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if rename:
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self.rename_snapshot()
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if cd_action == 'create':
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self.create_snapshot()
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elif cd_action == 'delete':
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self.delete_snapshot()
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elif modify:
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self.modify_snapshot()
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self.module.exit_json(changed=self.na_helper.changed)
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def main():
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"""
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Creates, modifies, and deletes a Snapshot
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"""
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obj = NetAppOntapSnapshot()
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obj.apply()
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226
test/units/modules/storage/netapp/test_na_ontap_snapshot.py
Normal file
226
test/units/modules/storage/netapp/test_na_ontap_snapshot.py
Normal file
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@ -0,0 +1,226 @@
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# (c) 2018, NetApp, Inc
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# GNU General Public License v3.0+ (see COPYING or https://www.gnu.org/licenses/gpl-3.0.txt)
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''' unit tests ONTAP Ansible module: na_ontap_nvme_snapshot'''
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from __future__ import print_function
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import json
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import pytest
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from units.compat import unittest
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from units.compat.mock import patch
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from ansible.module_utils import basic
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from ansible.module_utils._text import to_bytes
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import ansible.module_utils.netapp as netapp_utils
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from ansible.modules.storage.netapp.na_ontap_snapshot \
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import NetAppOntapSnapshot as my_module
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if not netapp_utils.has_netapp_lib():
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pytestmark = pytest.mark.skip('skipping as missing required netapp_lib')
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def set_module_args(args):
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"""prepare arguments so that they will be picked up during module creation"""
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args = json.dumps({'ANSIBLE_MODULE_ARGS': args})
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basic._ANSIBLE_ARGS = to_bytes(args) # pylint: disable=protected-access
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class AnsibleExitJson(Exception):
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"""Exception class to be raised by module.exit_json and caught by the test case"""
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pass
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class AnsibleFailJson(Exception):
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"""Exception class to be raised by module.fail_json and caught by the test case"""
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pass
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def exit_json(*args, **kwargs): # pylint: disable=unused-argument
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"""function to patch over exit_json; package return data into an exception"""
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if 'changed' not in kwargs:
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kwargs['changed'] = False
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raise AnsibleExitJson(kwargs)
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|
||||
def fail_json(*args, **kwargs): # pylint: disable=unused-argument
|
||||
"""function to patch over fail_json; package return data into an exception"""
|
||||
kwargs['failed'] = True
|
||||
raise AnsibleFailJson(kwargs)
|
||||
|
||||
|
||||
class MockONTAPConnection(object):
|
||||
''' mock server connection to ONTAP host '''
|
||||
|
||||
def __init__(self, kind=None):
|
||||
''' save arguments '''
|
||||
self.type = kind
|
||||
self.xml_in = None
|
||||
self.xml_out = None
|
||||
|
||||
def invoke_successfully(self, xml, enable_tunneling): # pylint: disable=unused-argument
|
||||
''' mock invoke_successfully returning xml data '''
|
||||
self.xml_in = xml
|
||||
if self.type == 'snapshot':
|
||||
xml = self.build_snapshot_info()
|
||||
elif self.type == 'snapshot_fail':
|
||||
raise netapp_utils.zapi.NaApiError(code='TEST', message="This exception is from the unit test")
|
||||
self.xml_out = xml
|
||||
return xml
|
||||
|
||||
@staticmethod
|
||||
def build_snapshot_info():
|
||||
''' build xml data for snapshot-info '''
|
||||
xml = netapp_utils.zapi.NaElement('xml')
|
||||
data = {'num-records': 1,
|
||||
'attributes-list': {'snapshot-info': {'comment': 'new comment',
|
||||
'name': 'ansible',
|
||||
'snapmirror-label': 'label12'}}}
|
||||
xml.translate_struct(data)
|
||||
return xml
|
||||
|
||||
|
||||
class TestMyModule(unittest.TestCase):
|
||||
''' a group of related Unit Tests '''
|
||||
|
||||
def setUp(self):
|
||||
self.mock_module_helper = patch.multiple(basic.AnsibleModule,
|
||||
exit_json=exit_json,
|
||||
fail_json=fail_json)
|
||||
self.mock_module_helper.start()
|
||||
self.addCleanup(self.mock_module_helper.stop)
|
||||
self.server = MockONTAPConnection()
|
||||
self.onbox = False
|
||||
|
||||
def set_default_args(self):
|
||||
if self.onbox:
|
||||
hostname = '10.193.75.3'
|
||||
username = 'admin'
|
||||
password = 'netapp1!'
|
||||
vserver = 'ansible'
|
||||
volume = 'ansible'
|
||||
snapshot = 'ansible'
|
||||
comment = 'new comment'
|
||||
snapmirror_label = 'label12'
|
||||
else:
|
||||
hostname = 'hostname'
|
||||
username = 'username'
|
||||
password = 'password'
|
||||
vserver = 'vserver'
|
||||
volume = 'ansible'
|
||||
snapshot = 'ansible'
|
||||
comment = 'new comment'
|
||||
snapmirror_label = 'label12'
|
||||
return dict({
|
||||
'hostname': hostname,
|
||||
'username': username,
|
||||
'password': password,
|
||||
'vserver': vserver,
|
||||
'volume': volume,
|
||||
'snapshot': snapshot,
|
||||
'comment': comment,
|
||||
'snapmirror_label': snapmirror_label
|
||||
})
|
||||
|
||||
def test_module_fail_when_required_args_missing(self):
|
||||
''' required arguments are reported as errors '''
|
||||
with pytest.raises(AnsibleFailJson) as exc:
|
||||
set_module_args({})
|
||||
my_module()
|
||||
print('Info: %s' % exc.value.args[0]['msg'])
|
||||
|
||||
def test_ensure_get_called(self):
|
||||
''' test get_snapshot() for non-existent snapshot'''
|
||||
set_module_args(self.set_default_args())
|
||||
my_obj = my_module()
|
||||
my_obj.server = self.server
|
||||
assert my_obj.get_snapshot() is None
|
||||
|
||||
def test_ensure_get_called_existing(self):
|
||||
''' test get_snapshot() for existing snapshot'''
|
||||
set_module_args(self.set_default_args())
|
||||
my_obj = my_module()
|
||||
my_obj.server = MockONTAPConnection(kind='snapshot')
|
||||
assert my_obj.get_snapshot()
|
||||
|
||||
@patch('ansible.modules.storage.netapp.na_ontap_snapshot.NetAppOntapSnapshot.create_snapshot')
|
||||
def test_successful_create(self, create_snapshot):
|
||||
''' creating snapshot and testing idempotency '''
|
||||
set_module_args(self.set_default_args())
|
||||
my_obj = my_module()
|
||||
if not self.onbox:
|
||||
my_obj.server = self.server
|
||||
with pytest.raises(AnsibleExitJson) as exc:
|
||||
my_obj.apply()
|
||||
assert exc.value.args[0]['changed']
|
||||
create_snapshot.assert_called_with()
|
||||
# to reset na_helper from remembering the previous 'changed' value
|
||||
my_obj = my_module()
|
||||
if not self.onbox:
|
||||
my_obj.server = MockONTAPConnection('snapshot')
|
||||
with pytest.raises(AnsibleExitJson) as exc:
|
||||
my_obj.apply()
|
||||
assert not exc.value.args[0]['changed']
|
||||
|
||||
@patch('ansible.modules.storage.netapp.na_ontap_snapshot.NetAppOntapSnapshot.modify_snapshot')
|
||||
def test_successful_modify(self, modify_snapshot):
|
||||
''' modifying snapshot and testing idempotency '''
|
||||
data = self.set_default_args()
|
||||
data['comment'] = 'adding comment'
|
||||
data['snapmirror_label'] = 'label22'
|
||||
set_module_args(data)
|
||||
my_obj = my_module()
|
||||
if not self.onbox:
|
||||
my_obj.server = MockONTAPConnection('snapshot')
|
||||
with pytest.raises(AnsibleExitJson) as exc:
|
||||
my_obj.apply()
|
||||
assert exc.value.args[0]['changed']
|
||||
modify_snapshot.assert_called_with()
|
||||
# to reset na_helper from remembering the previous 'changed' value
|
||||
data['comment'] = 'new comment'
|
||||
data['snapmirror_label'] = 'label12'
|
||||
set_module_args(data)
|
||||
my_obj = my_module()
|
||||
if not self.onbox:
|
||||
my_obj.server = MockONTAPConnection('snapshot')
|
||||
with pytest.raises(AnsibleExitJson) as exc:
|
||||
my_obj.apply()
|
||||
assert not exc.value.args[0]['changed']
|
||||
|
||||
@patch('ansible.modules.storage.netapp.na_ontap_snapshot.NetAppOntapSnapshot.delete_snapshot')
|
||||
def test_successful_delete(self, delete_snapshot):
|
||||
''' deleting snapshot and testing idempotency '''
|
||||
data = self.set_default_args()
|
||||
data['state'] = 'absent'
|
||||
set_module_args(data)
|
||||
my_obj = my_module()
|
||||
if not self.onbox:
|
||||
my_obj.server = MockONTAPConnection('snapshot')
|
||||
with pytest.raises(AnsibleExitJson) as exc:
|
||||
my_obj.apply()
|
||||
assert exc.value.args[0]['changed']
|
||||
delete_snapshot.assert_called_with()
|
||||
# to reset na_helper from remembering the previous 'changed' value
|
||||
my_obj = my_module()
|
||||
if not self.onbox:
|
||||
my_obj.server = self.server
|
||||
with pytest.raises(AnsibleExitJson) as exc:
|
||||
my_obj.apply()
|
||||
assert not exc.value.args[0]['changed']
|
||||
|
||||
def test_if_all_methods_catch_exception(self):
|
||||
module_args = {}
|
||||
module_args.update(self.set_default_args())
|
||||
set_module_args(module_args)
|
||||
my_obj = my_module()
|
||||
if not self.onbox:
|
||||
my_obj.server = MockONTAPConnection('snapshot_fail')
|
||||
with pytest.raises(AnsibleFailJson) as exc:
|
||||
my_obj.create_snapshot()
|
||||
assert 'Error creating snapshot ansible:' in exc.value.args[0]['msg']
|
||||
with pytest.raises(AnsibleFailJson) as exc:
|
||||
my_obj.delete_snapshot()
|
||||
assert 'Error deleting snapshot ansible:' in exc.value.args[0]['msg']
|
||||
with pytest.raises(AnsibleFailJson) as exc:
|
||||
my_obj.modify_snapshot()
|
||||
assert 'Error modifying snapshot ansible:' in exc.value.args[0]['msg']
|
||||
Loading…
Reference in a new issue