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ansible/network/f5/bigip_virtual_server.py
Tim Rupp 5399deff0b Adds documentation fragment to bigip modules 
This patch removes the common documentation bits and replaces them
with a doc fragment that already exists in core
2016-08-23 12:24:15 -07:00

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Python
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#!/usr/bin/python
# -*- coding: utf-8 -*-
# (c) 2015, Etienne Carriere <etienne.carriere@gmail.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/>.
DOCUMENTATION = '''
---
module: bigip_virtual_server
short_description: "Manages F5 BIG-IP LTM virtual servers"
description:
- "Manages F5 BIG-IP LTM virtual servers via iControl SOAP API"
version_added: "2.1"
author:
- Etienne Carriere (@Etienne-Carriere)
- Tim Rupp (@caphrim007)
notes:
- "Requires BIG-IP software version >= 11"
- "F5 developed module 'bigsuds' required (see http://devcentral.f5.com)"
- "Best run as a local_action in your playbook"
requirements:
- bigsuds
options:
state:
description:
- Virtual Server state
- Absent, delete the VS if present
- C(present) (and its synonym enabled), create if needed the VS and set
state to enabled
- C(disabled), create if needed the VS and set state to disabled
required: false
default: present
choices:
- present
- absent
- enabled
- disabled
aliases: []
partition:
description:
- Partition
required: false
default: 'Common'
name:
description:
- Virtual server name
required: true
aliases:
- vs
destination:
description:
- Destination IP of the virtual server (only host is currently supported).
Required when state=present and vs does not exist.
required: true
aliases:
- address
- ip
port:
description:
- Port of the virtual server . Required when state=present and vs does not exist
required: false
default: None
all_profiles:
description:
- List of all Profiles (HTTP,ClientSSL,ServerSSL,etc) that must be used
by the virtual server
required: false
default: None
all_rules:
version_added: "2.2"
description:
- List of rules to be applied in priority order
required: false
default: None
pool:
description:
- Default pool for the virtual server
required: false
default: None
snat:
description:
- Source network address policy
required: false
default: None
default_persistence_profile:
description:
- Default Profile which manages the session persistence
required: false
default: None
description:
description:
- Virtual server description
required: false
default: None
extends_documentation_fragment: f5
'''
EXAMPLES = '''
- name: Add virtual server
bigip_virtual_server:
server: lb.mydomain.net
user: admin
password: secret
state: present
partition: MyPartition
name: myvirtualserver
destination: "{{ ansible_default_ipv4['address'] }}"
port: 443
pool: "{{ mypool }}"
snat: Automap
description: Test Virtual Server
all_profiles:
- http
- clientssl
delegate_to: localhost
- name: Modify Port of the Virtual Server
bigip_virtual_server:
server: lb.mydomain.net
user: admin
password: secret
state: present
partition: MyPartition
name: myvirtualserver
port: 8080
delegate_to: localhost
- name: Delete virtual server
bigip_virtual_server:
server: lb.mydomain.net
user: admin
password: secret
state: absent
partition: MyPartition
name: myvirtualserver
delegate_to: localhost
'''
RETURN = '''
---
deleted:
description: Name of a virtual server that was deleted
returned: changed
type: string
sample: "my-virtual-server"
'''
# map of state values
STATES = {
'enabled': 'STATE_ENABLED',
'disabled': 'STATE_DISABLED'
}
STATUSES = {
'enabled': 'SESSION_STATUS_ENABLED',
'disabled': 'SESSION_STATUS_DISABLED',
'offline': 'SESSION_STATUS_FORCED_DISABLED'
}
def vs_exists(api, vs):
# hack to determine if pool exists
result = False
try:
api.LocalLB.VirtualServer.get_object_status(virtual_servers=[vs])
result = True
except bigsuds.OperationFailed as e:
if "was not found" in str(e):
result = False
else:
# genuine exception
raise
return result
def vs_create(api, name, destination, port, pool):
_profiles = [[{'profile_context': 'PROFILE_CONTEXT_TYPE_ALL', 'profile_name': 'tcp'}]]
created = False
# a bit of a hack to handle concurrent runs of this module.
# even though we've checked the vs doesn't exist,
# it may exist by the time we run create_vs().
# this catches the exception and does something smart
# about it!
try:
api.LocalLB.VirtualServer.create(
definitions=[{'name': [name], 'address': [destination], 'port': port, 'protocol': 'PROTOCOL_TCP'}],
wildmasks=['255.255.255.255'],
resources=[{'type': 'RESOURCE_TYPE_POOL', 'default_pool_name': pool}],
profiles=_profiles)
created = True
return created
except bigsuds.OperationFailed as e:
if "already exists" not in str(e):
raise Exception('Error on creating Virtual Server : %s' % e)
def vs_remove(api, name):
api.LocalLB.VirtualServer.delete_virtual_server(
virtual_servers=[name]
)
def get_rules(api, name):
return api.LocalLB.VirtualServer.get_rule(
virtual_servers=[name]
)[0]
def set_rules(api, name, rules_list):
updated = False
if rules_list is None:
return False
rules_list = list(enumerate(rules_list))
try:
current_rules = map(lambda x: (x['priority'], x['rule_name']), get_rules(api, name))
to_add_rules = []
for i, x in rules_list:
if (i, x) not in current_rules:
to_add_rules.append({'priority': i, 'rule_name': x})
to_del_rules = []
for i, x in current_rules:
if (i, x) not in rules_list:
to_del_rules.append({'priority': i, 'rule_name': x})
if len(to_del_rules) > 0:
api.LocalLB.VirtualServer.remove_rule(
virtual_servers=[name],
rules=[to_del_rules]
)
updated = True
if len(to_add_rules) > 0:
api.LocalLB.VirtualServer.add_rule(
virtual_servers=[name],
rules=[to_add_rules]
)
updated = True
return updated
except bigsuds.OperationFailed as e:
raise Exception('Error on setting profiles : %s' % e)
def get_profiles(api, name):
return api.LocalLB.VirtualServer.get_profile(
virtual_servers=[name]
)[0]
def set_profiles(api, name, profiles_list):
updated = False
try:
if profiles_list is None:
return False
current_profiles = map(lambda x: x['profile_name'], get_profiles(api, name))
to_add_profiles = []
for x in profiles_list:
if x not in current_profiles:
to_add_profiles.append({'profile_context': 'PROFILE_CONTEXT_TYPE_ALL', 'profile_name': x})
to_del_profiles = []
for x in current_profiles:
if (x not in profiles_list) and (x != "/Common/tcp"):
to_del_profiles.append({'profile_context': 'PROFILE_CONTEXT_TYPE_ALL', 'profile_name': x})
if len(to_del_profiles) > 0:
api.LocalLB.VirtualServer.remove_profile(
virtual_servers=[name],
profiles=[to_del_profiles]
)
updated = True
if len(to_add_profiles) > 0:
api.LocalLB.VirtualServer.add_profile(
virtual_servers=[name],
profiles=[to_add_profiles]
)
updated = True
return updated
except bigsuds.OperationFailed as e:
raise Exception('Error on setting profiles : %s' % e)
def set_snat(api, name, snat):
updated = False
try:
current_state = get_snat_type(api, name)
if snat is None:
return updated
elif snat == 'None' and current_state != 'SRC_TRANS_NONE':
api.LocalLB.VirtualServer.set_source_address_translation_none(
virtual_servers=[name]
)
updated = True
elif snat == 'Automap' and current_state != 'SRC_TRANS_AUTOMAP':
api.LocalLB.VirtualServer.set_source_address_translation_automap(
virtual_servers=[name]
)
updated = True
return updated
except bigsuds.OperationFailed as e:
raise Exception('Error on setting snat : %s' % e)
def get_snat_type(api, name):
return api.LocalLB.VirtualServer.get_source_address_translation_type(
virtual_servers=[name]
)[0]
def get_pool(api, name):
return api.LocalLB.VirtualServer.get_default_pool_name(
virtual_servers=[name]
)[0]
def set_pool(api, name, pool):
updated = False
try:
current_pool = get_pool(api, name)
if pool is not None and (pool != current_pool):
api.LocalLB.VirtualServer.set_default_pool_name(
virtual_servers=[name],
default_pools=[pool]
)
updated = True
return updated
except bigsuds.OperationFailed as e:
raise Exception('Error on setting pool : %s' % e)
def get_destination(api, name):
return api.LocalLB.VirtualServer.get_destination_v2(
virtual_servers=[name]
)[0]
def set_destination(api, name, destination):
updated = False
try:
current_destination = get_destination(api, name)
if destination is not None and destination != current_destination['address']:
api.LocalLB.VirtualServer.set_destination_v2(
virtual_servers=[name],
destinations=[{'address': destination, 'port': current_destination['port']}]
)
updated = True
return updated
except bigsuds.OperationFailed as e:
raise Exception('Error on setting destination : %s' % e)
def set_port(api, name, port):
updated = False
try:
current_destination = get_destination(api, name)
if port is not None and port != current_destination['port']:
api.LocalLB.VirtualServer.set_destination_v2(
virtual_servers=[name],
destinations=[{'address': current_destination['address'], 'port': port}]
)
updated = True
return updated
except bigsuds.OperationFailed as e:
raise Exception('Error on setting port : %s' % e)
def get_state(api, name):
return api.LocalLB.VirtualServer.get_enabled_state(
virtual_servers=[name]
)[0]
def set_state(api, name, state):
updated = False
try:
current_state = get_state(api, name)
# We consider that being present is equivalent to enabled
if state == 'present':
state = 'enabled'
if STATES[state] != current_state:
api.LocalLB.VirtualServer.set_enabled_state(
virtual_servers=[name],
states=[STATES[state]]
)
updated = True
return updated
except bigsuds.OperationFailed as e:
raise Exception('Error on setting state : %s' % e)
def get_description(api, name):
return api.LocalLB.VirtualServer.get_description(
virtual_servers=[name]
)[0]
def set_description(api, name, description):
updated = False
try:
current_description = get_description(api, name)
if description is not None and current_description != description:
api.LocalLB.VirtualServer.set_description(
virtual_servers=[name],
descriptions=[description]
)
updated = True
return updated
except bigsuds.OperationFailed as e:
raise Exception('Error on setting description : %s ' % e)
def get_persistence_profiles(api, name):
return api.LocalLB.VirtualServer.get_persistence_profile(
virtual_servers=[name]
)[0]
def set_default_persistence_profiles(api, name, persistence_profile):
updated = False
if persistence_profile is None:
return updated
try:
current_persistence_profiles = get_persistence_profiles(api, name)
default = None
for profile in current_persistence_profiles:
if profile['default_profile']:
default = profile['profile_name']
break
if default is not None and default != persistence_profile:
api.LocalLB.VirtualServer.remove_persistence_profile(
virtual_servers=[name],
profiles=[[{'profile_name': default, 'default_profile': True}]]
)
if default != persistence_profile:
api.LocalLB.VirtualServer.add_persistence_profile(
virtual_servers=[name],
profiles=[[{'profile_name': persistence_profile, 'default_profile': True}]]
)
updated = True
return updated
except bigsuds.OperationFailed as e:
raise Exception('Error on setting default persistence profile : %s' % e)
def main():
argument_spec = f5_argument_spec()
argument_spec.update(dict(
state=dict(type='str', default='present',
choices=['present', 'absent', 'disabled', 'enabled']),
name=dict(type='str', required=True, aliases=['vs']),
destination=dict(type='str', aliases=['address', 'ip']),
port=dict(type='int'),
all_profiles=dict(type='list'),
all_rules=dict(type='list'),
pool=dict(type='str'),
description=dict(type='str'),
snat=dict(type='str'),
default_persistence_profile=dict(type='str')
))
module = AnsibleModule(
argument_spec=argument_spec,
supports_check_mode=True
)
if not bigsuds_found:
module.fail_json(msg="the python bigsuds module is required")
if module.params['validate_certs']:
import ssl
if not hasattr(ssl, 'SSLContext'):
module.fail_json(msg='bigsuds does not support verifying certificates with python < 2.7.9. Either update python or set validate_certs=False on the task')
server = module.params['server']
server_port = module.params['server_port']
user = module.params['user']
password = module.params['password']
state = module.params['state']
partition = module.params['partition']
validate_certs = module.params['validate_certs']
name = fq_name(partition, module.params['name'])
destination = module.params['destination']
port = module.params['port']
all_profiles = fq_list_names(partition, module.params['all_profiles'])
all_rules = fq_list_names(partition, module.params['all_rules'])
pool = fq_name(partition, module.params['pool'])
description = module.params['description']
snat = module.params['snat']
default_persistence_profile = fq_name(partition, module.params['default_persistence_profile'])
if 1 > port > 65535:
module.fail_json(msg="valid ports must be in range 1 - 65535")
try:
api = bigip_api(server, user, password, validate_certs, port=server_port)
result = {'changed': False} # default
if state == 'absent':
if not module.check_mode:
if vs_exists(api, name):
# hack to handle concurrent runs of module
# pool might be gone before we actually remove
try:
vs_remove(api, name)
result = {'changed': True, 'deleted': name}
except bigsuds.OperationFailed as e:
if "was not found" in str(e):
result['changed'] = False
else:
raise
else:
# check-mode return value
result = {'changed': True}
else:
update = False
if not vs_exists(api, name):
if (not destination) or (not port):
module.fail_json(msg="both destination and port must be supplied to create a VS")
if not module.check_mode:
# a bit of a hack to handle concurrent runs of this module.
# even though we've checked the virtual_server doesn't exist,
# it may exist by the time we run virtual_server().
# this catches the exception and does something smart
# about it!
try:
vs_create(api, name, destination, port, pool)
set_profiles(api, name, all_profiles)
set_rules(api, name, all_rules)
set_snat(api, name, snat)
set_description(api, name, description)
set_default_persistence_profiles(api, name, default_persistence_profile)
set_state(api, name, state)
result = {'changed': True}
except bigsuds.OperationFailed as e:
raise Exception('Error on creating Virtual Server : %s' % e)
else:
# check-mode return value
result = {'changed': True}
else:
update = True
if update:
# VS exists
if not module.check_mode:
# Have a transaction for all the changes
try:
api.System.Session.start_transaction()
result['changed'] |= set_destination(api, name, fq_name(partition, destination))
result['changed'] |= set_port(api, name, port)
result['changed'] |= set_pool(api, name, pool)
result['changed'] |= set_description(api, name, description)
result['changed'] |= set_snat(api, name, snat)
result['changed'] |= set_profiles(api, name, all_profiles)
result['changed'] |= set_rules(api, name, all_rules)
result['changed'] |= set_default_persistence_profiles(api, name, default_persistence_profile)
result['changed'] |= set_state(api, name, state)
api.System.Session.submit_transaction()
except Exception as e:
raise Exception("Error on updating Virtual Server : %s" % e)
else:
# check-mode return value
result = {'changed': True}
except Exception as e:
module.fail_json(msg="received exception: %s" % e)
module.exit_json(**result)
# import module snippets
from ansible.module_utils.basic import *
from ansible.module_utils.f5 import *
if __name__ == '__main__':
main()
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