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VMware: Refactor vmware_vswitch (#36091)
* Update documentation * Update logic * Added idempotency * Added Error handling Fixes: #36030 Signed-off-by: Abhijeet Kasurde <akasurde@redhat.com>
This commit is contained in:
Abhijeet Kasurde
GitHub
parent
57a009d4c7
commit
ed141f1eab
3 changed files with 313 additions and 142 deletions
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@ -1,28 +1,33 @@
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#!/usr/bin/python
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# -*- coding: utf-8 -*-
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# Copyright: (c) 2015, Joseph Callen <jcallen () csc.com>
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# Copyright: (c) 2018, Ansible Project
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# Copyright: (c) 2018, Abhijeet Kasurde <akasurde@redhat.com>
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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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from __future__ import absolute_import, division, print_function
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__metaclass__ = type
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ANSIBLE_METADATA = {'metadata_version': '1.1',
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'status': ['preview'],
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'supported_by': 'community'}
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ANSIBLE_METADATA = {
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'metadata_version': '1.1',
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'status': ['preview'],
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'supported_by': 'community'
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}
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DOCUMENTATION = '''
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---
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module: vmware_vswitch
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short_description: Add or remove a VMware Standard Switch to an ESXi host
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short_description: Manage a VMware Standard Switch to an ESXi host.
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description:
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- Add or remove a VMware Standard Switch to an ESXi host.
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- This module can be used to add, remove and update a VMware Standard Switch to an ESXi host.
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version_added: 2.0
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author:
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- Joseph Callen (@jcpowermac)
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- Russell Teague (@mtnbikenc)
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- Abhijeet Kasurde (@akasurde) <akasurde@redhat.com>
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notes:
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- Tested on vSphere 5.5
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- Tested on vSphere 5.5 and 6.5
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requirements:
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- python >= 2.6
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- PyVmomi
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@ -38,6 +43,7 @@ options:
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- A list of vmnic names or vmnic name to attach to vSwitch.
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- Alias C(nics) is added in version 2.4.
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aliases: [ nic_name ]
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default: []
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number_of_ports:
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description:
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- Number of port to configure on vSwitch.
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@ -53,7 +59,7 @@ options:
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choices: [ absent, present ]
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esxi_hostname:
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description:
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- Manage the vSwitch using this ESXi host system
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- Manage the vSwitch using this ESXi host system.
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version_added: "2.5"
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aliases: [ 'host' ]
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extends_documentation_fragment:
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@ -105,21 +111,22 @@ EXAMPLES = '''
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delegate_to: localhost
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'''
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RETURN = """
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result:
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description: information about performed operation
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returned: always
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type: string
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sample: "vSwitch 'vSwitch_1002' is created successfully"
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"""
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from ansible.module_utils.basic import AnsibleModule
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from ansible.module_utils.six import iteritems
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from ansible.module_utils.vmware import PyVmomi, vmware_argument_spec, get_all_objs
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try:
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from pyVmomi import vim, vmodl
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except ImportError:
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pass
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def find_vswitch_by_name(host, vswitch_name):
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for vss in host.configManager.networkSystem.networkInfo.vswitch:
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if vss.name == vswitch_name:
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return vss
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return None
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from ansible.module_utils.basic import AnsibleModule
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from ansible.module_utils.vmware import PyVmomi, vmware_argument_spec
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from ansible.module_utils._text import to_native
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class VMwareHostVirtualSwitch(PyVmomi):
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@ -132,96 +139,260 @@ class VMwareHostVirtualSwitch(PyVmomi):
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self.nics = module.params['nics']
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self.mtu = module.params['mtu']
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self.state = module.params['state']
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self.esxi_hostname = module.params['esxi_hostname']
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esxi_hostname = module.params['esxi_hostname']
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hosts = self.get_all_host_objs(esxi_host_name=esxi_hostname)
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if hosts:
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self.host_system = hosts[0]
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else:
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self.module.fail_json(msg="Failed to get details of ESXi server."
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" Please specify esxi_hostname.")
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if self.params.get('state') == 'present':
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# Gather information about all vSwitches and Physical NICs
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network_manager = self.host_system.configManager.networkSystem
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available_pnic = [pnic.device for pnic in network_manager.networkInfo.pnic]
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self.available_vswitches = dict()
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for available_vswitch in network_manager.networkInfo.vswitch:
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used_pnic = []
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for pnic in available_vswitch.pnic:
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# vSwitch contains all PNICs as string in format of 'key-vim.host.PhysicalNic-vmnic0'
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m_pnic = pnic.split("-", 3)[-1]
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used_pnic.append(m_pnic)
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self.available_vswitches[available_vswitch.name] = dict(pnic=used_pnic,
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mtu=available_vswitch.mtu,
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num_ports=available_vswitch.spec.numPorts,
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)
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for desired_pnic in self.nics:
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if desired_pnic not in available_pnic:
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# Check if pnic does not exists
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self.module.fail_json(msg="Specified Physical NIC '%s' does not"
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" exists on given ESXi '%s'." % (desired_pnic,
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self.host_system.name))
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for vswitch in self.available_vswitches:
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if desired_pnic in self.available_vswitches[vswitch]['pnic'] and vswitch != self.switch:
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# Check if pnic is already part of some other vSwitch
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self.module.fail_json(msg="Specified Physical NIC '%s' is already used"
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" by vSwitch '%s'." % (desired_pnic, vswitch))
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def process_state(self):
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try:
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vswitch_states = {
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'absent': {
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'present': self.state_destroy_vswitch,
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'absent': self.state_exit_unchanged,
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},
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'present': {
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'update': self.state_update_vswitch,
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'present': self.state_exit_unchanged,
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'absent': self.state_create_vswitch,
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}
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"""
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Function to manage internal state of vSwitch
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"""
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vswitch_states = {
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'absent': {
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'present': self.state_destroy_vswitch,
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'absent': self.state_exit_unchanged,
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},
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'present': {
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'present': self.state_update_vswitch,
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'absent': self.state_create_vswitch,
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}
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}
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try:
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vswitch_states[self.state][self.check_vswitch_configuration()]()
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except vmodl.RuntimeFault as runtime_fault:
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self.module.fail_json(msg=runtime_fault.msg)
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self.module.fail_json(msg=to_native(runtime_fault.msg))
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except vmodl.MethodFault as method_fault:
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self.module.fail_json(msg=method_fault.msg)
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self.module.fail_json(msg=to_native(method_fault.msg))
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except Exception as e:
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self.module.fail_json(msg=str(e))
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# Source from
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# https://github.com/rreubenur/pyvmomi-community-samples/blob/patch-1/samples/create_vswitch.py
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self.module.fail_json(msg=to_native(e))
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def state_create_vswitch(self):
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"""
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Function to create a virtual switch
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Source from
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https://github.com/rreubenur/pyvmomi-community-samples/blob/patch-1/samples/create_vswitch.py
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"""
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results = dict(changed=False, result="")
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vss_spec = vim.host.VirtualSwitch.Specification()
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vss_spec.numPorts = self.number_of_ports
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vss_spec.mtu = self.mtu
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if self.nics:
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vss_spec.bridge = vim.host.VirtualSwitch.BondBridge(nicDevice=self.nics)
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self.host_system.configManager.networkSystem.AddVirtualSwitch(vswitchName=self.switch, spec=vss_spec)
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self.module.exit_json(changed=True)
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try:
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network_mgr = self.host_system.configManager.networkSystem
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if network_mgr:
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network_mgr.AddVirtualSwitch(vswitchName=self.switch,
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spec=vss_spec)
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results['changed'] = True
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results['result'] = "vSwitch '%s' is created successfully" % self.switch
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else:
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self.module.fail_json(msg="Failed to find network manager for ESXi system")
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except vim.fault.AlreadyExists as already_exists:
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results['result'] = "vSwitch with name %s already exists: %s" % (self.switch,
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to_native(already_exists.msg))
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except vim.fault.ResourceInUse as resource_used:
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self.module.fail_json(msg="Failed to add vSwitch '%s' as physical network adapter"
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" being bridged is already in use: %s" % (self.switch,
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to_native(resource_used.msg)))
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except vim.fault.HostConfigFault as host_config_fault:
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self.module.fail_json(msg="Failed to add vSwitch '%s' due to host"
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" configuration fault : %s" % (self.switch,
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to_native(host_config_fault.msg)))
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except vmodl.fault.InvalidArgument as invalid_argument:
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self.module.fail_json(msg="Failed to add vSwitch '%s', this can be due to either of following :"
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" 1. vSwitch Name exceeds the maximum allowed length,"
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" 2. Number of ports specified falls out of valid range,"
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" 3. Network policy is invalid,"
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" 4. Beacon configuration is invalid : %s" % (self.switch,
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to_native(invalid_argument.msg)))
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except vmodl.fault.SystemError as system_error:
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self.module.fail_json(msg="Failed to add vSwitch '%s' due to : %s" % (self.switch,
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to_native(system_error.msg)))
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except Exception as generic_exc:
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self.module.fail_json(msg="Failed to add vSwitch '%s' due to"
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" generic exception : %s" % (self.switch,
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to_native(generic_exc)))
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self.module.exit_json(**results)
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def state_exit_unchanged(self):
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"""
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Function to declare exit without unchanged
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"""
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self.module.exit_json(changed=False)
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def state_destroy_vswitch(self):
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config = vim.host.NetworkConfig()
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"""
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Function to remove vSwitch from configuration
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for portgroup in self.host_system.configManager.networkSystem.networkInfo.portgroup:
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if portgroup.spec.vswitchName == self.vss.name:
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portgroup_config = vim.host.PortGroup.Config()
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portgroup_config.changeOperation = "remove"
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portgroup_config.spec = vim.host.PortGroup.Specification()
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portgroup_config.spec.name = portgroup.spec.name
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portgroup_config.spec.name = portgroup.spec.name
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portgroup_config.spec.vlanId = portgroup.spec.vlanId
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portgroup_config.spec.vswitchName = portgroup.spec.vswitchName
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portgroup_config.spec.policy = vim.host.NetworkPolicy()
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config.portgroup.append(portgroup_config)
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"""
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results = dict(changed=False, result="")
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self.host_system.configManager.networkSystem.UpdateNetworkConfig(config, "modify")
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self.host_system.configManager.networkSystem.RemoveVirtualSwitch(self.vss.name)
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self.module.exit_json(changed=True)
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try:
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self.host_system.configManager.networkSystem.RemoveVirtualSwitch(self.vss.name)
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results['changed'] = True
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results['result'] = "vSwitch '%s' removed successfully." % self.vss.name
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except vim.fault.NotFound as vswitch_not_found:
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results['result'] = "vSwitch '%s' not available. %s" % (self.switch,
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to_native(vswitch_not_found.msg))
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except vim.fault.ResourceInUse as vswitch_in_use:
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self.module.fail_json(msg="Failed to remove vSwitch '%s' as vSwitch"
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" is used by several virtual"
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" network adapters: %s" % (self.switch,
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to_native(vswitch_in_use.msg)))
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except vim.fault.HostConfigFault as host_config_fault:
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self.module.fail_json(msg="Failed to remove vSwitch '%s' due to host"
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" configuration fault : %s" % (self.switch,
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to_native(host_config_fault.msg)))
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except Exception as generic_exc:
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self.module.fail_json(msg="Failed to remove vSwitch '%s' due to generic"
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" exception : %s" % (self.switch,
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to_native(generic_exc)))
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self.module.exit_json(**results)
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def state_update_vswitch(self):
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self.module.exit_json(changed=False, msg="Currently not implemented.")
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"""
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Function to update vSwitch
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"""
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results = dict(changed=False, result="No change in vSwitch '%s'" % self.switch)
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vswitch_pnic_info = self.available_vswitches[self.switch]
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remain_pnic = []
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for desired_pnic in self.nics:
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if desired_pnic not in vswitch_pnic_info['pnic']:
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remain_pnic.append(desired_pnic)
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diff = False
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# Update all nics
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all_nics = vswitch_pnic_info['pnic']
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if remain_pnic:
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all_nics += remain_pnic
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diff = True
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# vSwitch needs every parameter again while updating,
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# even if we are updating any one of them
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vss_spec = vim.host.VirtualSwitch.Specification()
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vss_spec.bridge = vim.host.VirtualSwitch.BondBridge(nicDevice=all_nics)
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vss_spec.numPorts = self.number_of_ports
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vss_spec.mtu = self.mtu
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if vswitch_pnic_info['mtu'] != self.mtu or \
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vswitch_pnic_info['num_ports'] != self.number_of_ports:
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diff = True
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try:
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if diff:
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network_mgr = self.host_system.configManager.networkSystem
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if network_mgr:
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network_mgr.UpdateVirtualSwitch(vswitchName=self.switch,
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spec=vss_spec)
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results['changed'] = True
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results['result'] = "vSwitch '%s' is updated successfully" % self.switch
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else:
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self.module.fail_json(msg="Failed to find network manager for ESXi system.")
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except vim.fault.ResourceInUse as resource_used:
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self.module.fail_json(msg="Failed to update vSwitch '%s' as physical network adapter"
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" being bridged is already in use: %s" % (self.switch,
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to_native(resource_used.msg)))
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except vim.fault.NotFound as not_found:
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self.module.fail_json(msg="Failed to update vSwitch with name '%s'"
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" as it does not exists: %s" % (self.switch,
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to_native(not_found.msg)))
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except vim.fault.HostConfigFault as host_config_fault:
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self.module.fail_json(msg="Failed to update vSwitch '%s' due to host"
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" configuration fault : %s" % (self.switch,
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to_native(host_config_fault.msg)))
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except vmodl.fault.InvalidArgument as invalid_argument:
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self.module.fail_json(msg="Failed to update vSwitch '%s', this can be due to either of following :"
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" 1. vSwitch Name exceeds the maximum allowed length,"
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" 2. Number of ports specified falls out of valid range,"
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" 3. Network policy is invalid,"
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" 4. Beacon configuration is invalid : %s" % (self.switch,
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to_native(invalid_argument.msg)))
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except vmodl.fault.SystemError as system_error:
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self.module.fail_json(msg="Failed to update vSwitch '%s' due to : %s" % (self.switch,
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to_native(system_error.msg)))
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except vmodl.fault.NotSupported as not_supported:
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self.module.fail_json(msg="Failed to update vSwitch '%s' as network adapter teaming policy"
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" is set but is not supported : %s" % (self.switch,
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to_native(not_supported.msg)))
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except Exception as generic_exc:
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self.module.fail_json(msg="Failed to update vSwitch '%s' due to"
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" generic exception : %s" % (self.switch,
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to_native(generic_exc)))
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self.module.exit_json(**results)
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def check_vswitch_configuration(self):
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hosts = get_all_objs(self.content, [vim.HostSystem])
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if not hosts:
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self.module.fail_json(msg="Unable to find host")
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desired_host_system = None
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if self.esxi_hostname:
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for host_system_obj, host_system_name in iteritems(hosts):
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if host_system_name == self.esxi_hostname:
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desired_host_system = host_system_obj
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if desired_host_system:
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self.host_system = desired_host_system
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else:
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self.host_system = list(hosts.keys())[0]
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self.vss = find_vswitch_by_name(self.host_system, self.switch)
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"""
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Function to check if vSwitch exists
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Returns: 'present' if vSwitch exists or 'absent' if not
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"""
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self.vss = self.find_vswitch_by_name(self.host_system, self.switch)
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if self.vss is None:
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return 'absent'
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else:
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return 'present'
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@staticmethod
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def find_vswitch_by_name(host, vswitch_name):
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"""
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Function to find and return vSwitch managed object
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Args:
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host: Host system managed object
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vswitch_name: Name of vSwitch to find
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Returns: vSwitch managed object if found, else None
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"""
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for vss in host.configManager.networkSystem.networkInfo.vswitch:
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if vss.name == vswitch_name:
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return vss
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return None
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def main():
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argument_spec = vmware_argument_spec()
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argument_spec.update(dict(
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switch=dict(type='str', required=True, aliases=['switch_name']),
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nics=dict(type='list', aliases=['nic_name']),
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nics=dict(type='list', aliases=['nic_name'], default=[]),
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number_of_ports=dict(type='int', default=128),
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mtu=dict(type='int', default=1500),
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state=dict(type='str', default='present', choices=['absent', 'present'])),
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