mirror of https://github.com/ansible/ansible.git
Implement BIGIP F5 TCP monitor
parent
740491e0ce
commit
30ef338c85
@ -0,0 +1,429 @@
|
||||
#!/usr/bin/python
|
||||
# -*- coding: utf-8 -*-
|
||||
|
||||
# (c) 2013, serge van Ginderachter <serge@vanginderachter.be>
|
||||
#
|
||||
# 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_monitor_tcp
|
||||
short_description: "Manages F5 BIG-IP LTM tcp monitors"
|
||||
description:
|
||||
- "Manages F5 BIG-IP LTM tcp monitors via iControl SOAP API"
|
||||
version_added: "1.4"
|
||||
author: Serge van Ginderachter
|
||||
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"
|
||||
- "Monitor API documentation: https://devcentral.f5.com/wiki/iControl.LocalLB__Monitor.ashx" TODO
|
||||
requirements:
|
||||
- bigsuds
|
||||
options:
|
||||
server:
|
||||
description:
|
||||
- BIG-IP host
|
||||
required: true
|
||||
default: null
|
||||
user:
|
||||
description:
|
||||
- BIG-IP username
|
||||
required: true
|
||||
default: null
|
||||
password:
|
||||
description:
|
||||
- BIG-IP password
|
||||
required: true
|
||||
default: null
|
||||
state:
|
||||
description:
|
||||
- Monitor state
|
||||
required: false
|
||||
default: 'present'
|
||||
choices: ['present', 'absent']
|
||||
name:
|
||||
description:
|
||||
- Monitor name
|
||||
required: true
|
||||
default: null
|
||||
aliases: ['monitor']
|
||||
partition:
|
||||
description:
|
||||
- Partition for the monitor
|
||||
required: false
|
||||
default: 'Common'
|
||||
type:
|
||||
description:
|
||||
- The template type of this monitor template
|
||||
required: false
|
||||
default: 'tcp'
|
||||
choices: [ 'TTYPE_TCP', 'TTYPE_TCP_ECHO', 'TTYPE_TCP_HALF_OPEN']
|
||||
parent:
|
||||
description:
|
||||
- The parent template of this monitor template
|
||||
required: false
|
||||
default: 'tcp'
|
||||
choices: [ 'tcp', 'tcp_echo', 'tcp_half_open']
|
||||
parent_partition:
|
||||
description:
|
||||
- Partition for the parent monitor
|
||||
required: false
|
||||
default: 'Common'
|
||||
send:
|
||||
description:
|
||||
- The send string for the monitor call
|
||||
required: true
|
||||
default: none
|
||||
receive:
|
||||
description:
|
||||
- The receive string for the monitor call
|
||||
required: true
|
||||
default: none
|
||||
ip:
|
||||
description:
|
||||
- IP address part of the ipport definition. The default API setting
|
||||
is "0.0.0.0".
|
||||
required: false
|
||||
default: none
|
||||
port:
|
||||
description:
|
||||
- port address part op the ipport definition. Tyhe default API
|
||||
setting is 0.
|
||||
required: false
|
||||
default: none
|
||||
interval:
|
||||
description:
|
||||
- The interval specifying how frequently the monitor instance
|
||||
of this template will run. By default, this interval is used for up and
|
||||
down states. The default API setting is 5.
|
||||
required: false
|
||||
default: none
|
||||
timeout:
|
||||
description:
|
||||
- The number of seconds in which the node or service must respond to
|
||||
the monitor request. If the target responds within the set time
|
||||
period, it is considered up. If the target does not respond within
|
||||
the set time period, it is considered down. You can change this
|
||||
number to any number you want, however, it should be 3 times the
|
||||
interval number of seconds plus 1 second. The default API setting
|
||||
is 16.
|
||||
required: false
|
||||
default: none
|
||||
time_until_up:
|
||||
description:
|
||||
- Specifies the amount of time in seconds after the first successful
|
||||
response before a node will be marked up. A value of 0 will cause a
|
||||
node to be marked up immediately after a valid response is received
|
||||
from the node. The default API setting is 0.
|
||||
required: false
|
||||
default: none
|
||||
'''
|
||||
|
||||
EXAMPLES = '''
|
||||
|
||||
'''
|
||||
|
||||
try:
|
||||
import bigsuds
|
||||
except ImportError:
|
||||
bigsuds_found = False
|
||||
else:
|
||||
bigsuds_found = True
|
||||
|
||||
TEMPLATE_TYPE = DEFAULT_TEMPLATE_TYPE = 'TTYPE_TCP'
|
||||
TEMPLATE_TYPE_CHOICES = ['tcp', 'tcp_echo', 'tcp_half_open']
|
||||
DEFAULT_PARENT = DEFAULT_TEMPLATE_TYPE_CHOICE = DEFAULT_TEMPLATE_TYPE.replace('TTYPE_', '').lower()
|
||||
|
||||
|
||||
# ===========================================
|
||||
# bigip_monitor module generic methods.
|
||||
# these should be re-useable for other monitor types
|
||||
#
|
||||
|
||||
def bigip_api(bigip, user, password):
|
||||
|
||||
api = bigsuds.BIGIP(hostname=bigip, username=user, password=password)
|
||||
return api
|
||||
|
||||
|
||||
def check_monitor_exists(module, api, monitor, parent):
|
||||
|
||||
# hack to determine if monitor exists
|
||||
result = False
|
||||
try:
|
||||
ttype = api.LocalLB.Monitor.get_template_type(template_names=[monitor])[0]
|
||||
parent2 = api.LocalLB.Monitor.get_parent_template(template_names=[monitor])[0]
|
||||
if ttype == TEMPLATE_TYPE and parent == parent2:
|
||||
result = True
|
||||
else:
|
||||
module.fail_json(msg='Monitor already exists, but has a different type (%s) or parent(%s)' % (ttype, parent))
|
||||
except bigsuds.OperationFailed, e:
|
||||
if "was not found" in str(e):
|
||||
result = False
|
||||
else:
|
||||
# genuine exception
|
||||
raise
|
||||
return result
|
||||
|
||||
|
||||
def create_monitor(api, monitor, template_attributes):
|
||||
|
||||
try:
|
||||
api.LocalLB.Monitor.create_template(templates=[{'template_name': monitor, 'template_type': TEMPLATE_TYPE}], template_attributes=[template_attributes])
|
||||
except bigsuds.OperationFailed, e:
|
||||
if "already exists" in str(e):
|
||||
return False
|
||||
else:
|
||||
# genuine exception
|
||||
raise
|
||||
return True
|
||||
|
||||
|
||||
def delete_monitor(api, monitor):
|
||||
|
||||
try:
|
||||
api.LocalLB.Monitor.delete_template(template_names=[monitor])
|
||||
except bigsuds.OperationFailed, e:
|
||||
# maybe it was deleted since we checked
|
||||
if "was not found" in str(e):
|
||||
return False
|
||||
else:
|
||||
# genuine exception
|
||||
raise
|
||||
return True
|
||||
|
||||
|
||||
def check_string_property(api, monitor, str_property):
|
||||
|
||||
return str_property == api.LocalLB.Monitor.get_template_string_property([monitor], [str_property['type']])[0]
|
||||
|
||||
|
||||
def set_string_property(api, monitor, str_property):
|
||||
|
||||
api.LocalLB.Monitor.set_template_string_property(template_names=[monitor], values=[str_property])
|
||||
|
||||
|
||||
def check_integer_property(api, monitor, int_property):
|
||||
|
||||
return int_property == api.LocalLB.Monitor.get_template_integer_property([monitor], [int_property['type']])[0]
|
||||
|
||||
|
||||
def set_integer_property(api, monitor, int_property):
|
||||
|
||||
api.LocalLB.Monitor.set_template_int_property(template_names=[monitor], values=[int_property])
|
||||
|
||||
|
||||
def update_monitor_properties(api, module, monitor, template_string_properties, template_integer_properties):
|
||||
|
||||
changed = False
|
||||
for str_property in template_string_properties:
|
||||
if str_property['value'] is not None and not check_string_property(api, monitor, str_property):
|
||||
if not module.check_mode:
|
||||
set_string_property(api, monitor, str_property)
|
||||
changed = True
|
||||
for int_property in template_integer_properties:
|
||||
if int_property['value'] is not None and not check_integer_property(api, monitor, int_property):
|
||||
if not module.check_mode:
|
||||
set_integer_property(api, monitor, int_property)
|
||||
changed = True
|
||||
|
||||
return changed
|
||||
|
||||
|
||||
def get_ipport(api, monitor):
|
||||
|
||||
return api.LocalLB.Monitor.get_template_destination(template_names=[monitor])[0]
|
||||
|
||||
|
||||
def set_ipport(api, monitor, ipport):
|
||||
|
||||
try:
|
||||
api.LocalLB.Monitor.set_template_destination(template_names=[monitor], destinations=[ipport])
|
||||
return True, ""
|
||||
|
||||
except bigsuds.OperationFailed, e:
|
||||
if "Cannot modify the address type of monitor" in str(e):
|
||||
return False, "Cannot modify the address type of monitor if already assigned to a pool."
|
||||
else:
|
||||
# genuine exception
|
||||
raise
|
||||
|
||||
# ===========================================
|
||||
# main loop
|
||||
#
|
||||
# writing a module for other monitor types should
|
||||
# only need an updated main() (and monitor specific functions)
|
||||
|
||||
def main():
|
||||
|
||||
# begin monitor specific stuff
|
||||
|
||||
module = AnsibleModule(
|
||||
argument_spec = dict(
|
||||
server = dict(required=True),
|
||||
user = dict(required=True),
|
||||
password = dict(required=True),
|
||||
partition = dict(default='Common'),
|
||||
state = dict(default='present', choices=['present', 'absent']),
|
||||
name = dict(required=True),
|
||||
type = dict(default=DEFAULT_TEMPLATE_TYPE_CHOICE, choices=TEMPLATE_TYPE_CHOICES),
|
||||
parent = dict(default=DEFAULT_PARENT),
|
||||
parent_partition = dict(default='Common'),
|
||||
send = dict(required=False),
|
||||
receive = dict(required=False),
|
||||
ip = dict(required=False),
|
||||
port = dict(required=False, type='int'),
|
||||
interval = dict(required=False, type='int'),
|
||||
timeout = dict(required=False, type='int'),
|
||||
time_until_up = dict(required=False, type='int', default=0)
|
||||
),
|
||||
supports_check_mode=True
|
||||
)
|
||||
|
||||
server = module.params['server']
|
||||
user = module.params['user']
|
||||
password = module.params['password']
|
||||
partition = module.params['partition']
|
||||
parent_partition = module.params['parent_partition']
|
||||
state = module.params['state']
|
||||
name = module.params['name']
|
||||
type = 'TTYPE_' + module.params['type'].upper()
|
||||
parent = "/%s/%s" % (parent_partition, module.params['parent'])
|
||||
monitor = "/%s/%s" % (partition, name)
|
||||
send = module.params['send']
|
||||
receive = module.params['receive']
|
||||
ip = module.params['ip']
|
||||
port = module.params['port']
|
||||
interval = module.params['interval']
|
||||
timeout = module.params['timeout']
|
||||
time_until_up = module.params['time_until_up']
|
||||
|
||||
# tcp monitor has multiple types, so overrule
|
||||
global TEMPLATE_TYPE
|
||||
TEMPLATE_TYPE = type
|
||||
|
||||
# end monitor specific stuff
|
||||
|
||||
if not bigsuds_found:
|
||||
module.fail_json(msg="the python bigsuds module is required")
|
||||
api = bigip_api(server, user, password)
|
||||
monitor_exists = check_monitor_exists(module, api, monitor, parent)
|
||||
|
||||
|
||||
# ipport is a special setting
|
||||
if monitor_exists: # make sure to not update current settings if not asked
|
||||
cur_ipport = get_ipport(api, monitor)
|
||||
if ip is None:
|
||||
ip = cur_ipport['ipport']['address']
|
||||
if port is None:
|
||||
port = cur_ipport['ipport']['port']
|
||||
else: # use API defaults if not defined to create it
|
||||
if interval is None: interval = 5
|
||||
if timeout is None: timeout = 16
|
||||
if ip is None: ip = '0.0.0.0'
|
||||
if port is None: port = 0
|
||||
if send is None: send = ''
|
||||
if receive is None: receive = ''
|
||||
|
||||
# define and set address type
|
||||
if ip == '0.0.0.0' and port == 0:
|
||||
address_type = 'ATYPE_STAR_ADDRESS_STAR_PORT'
|
||||
elif ip == '0.0.0.0' and port != 0:
|
||||
address_type = 'ATYPE_STAR_ADDRESS_EXPLICIT_PORT'
|
||||
elif ip != '0.0.0.0' and port != 0:
|
||||
address_type = 'ATYPE_EXPLICIT_ADDRESS_EXPLICIT_PORT'
|
||||
else:
|
||||
address_type = 'ATYPE_UNSET'
|
||||
|
||||
ipport = {'address_type': address_type,
|
||||
'ipport': {'address': ip,
|
||||
'port': port}}
|
||||
|
||||
template_attributes = {'parent_template': parent,
|
||||
'interval': interval,
|
||||
'timeout': timeout,
|
||||
'dest_ipport': ipport,
|
||||
'is_read_only': False,
|
||||
'is_directly_usable': True}
|
||||
|
||||
# monitor specific stuff
|
||||
if type == 'TTYPE_TCP':
|
||||
template_string_properties = [{'type': 'STYPE_SEND',
|
||||
'value': send},
|
||||
{'type': 'STYPE_RECEIVE',
|
||||
'value': receive}]
|
||||
else:
|
||||
template_string_properties = []
|
||||
|
||||
template_integer_properties = [{'type': 'ITYPE_INTERVAL',
|
||||
'value': interval},
|
||||
{'type': 'ITYPE_TIMEOUT',
|
||||
'value': timeout},
|
||||
{'type': 'ITYPE_TIME_UNTIL_UP',
|
||||
'value': interval}]
|
||||
|
||||
# main logic, monitor generic
|
||||
|
||||
try:
|
||||
result = {'changed': False} # default
|
||||
|
||||
|
||||
if state == 'absent':
|
||||
if monitor_exists:
|
||||
if not module.check_mode:
|
||||
# possible race condition if same task
|
||||
# on other node deleted it first
|
||||
result['changed'] |= delete_monitor(api, monitor)
|
||||
else:
|
||||
result['changed'] |= True
|
||||
|
||||
else: # state present
|
||||
## check for monitor itself
|
||||
if not monitor_exists: # create it
|
||||
if not module.check_mode:
|
||||
# again, check changed status here b/c race conditions
|
||||
# if other task already created it
|
||||
result['changed'] |= create_monitor(api, monitor, template_attributes)
|
||||
else:
|
||||
result['changed'] |= True
|
||||
|
||||
## check for monitor parameters
|
||||
# whether it already existed, or was just created, now update
|
||||
# the update functions need to check for check mode but
|
||||
# cannot update settings if it doesn't exist which happens in check mode
|
||||
if monitor_exists and not module.check_mode:
|
||||
result['changed'] |= update_monitor_properties(api, module, monitor,
|
||||
template_string_properties,
|
||||
template_integer_properties)
|
||||
# else assume nothing changed
|
||||
|
||||
# we just have to update the ipport if monitor already exists and it's different
|
||||
if monitor_exists and cur_ipport != ipport:
|
||||
set_ipport(api, monitor, ipport)
|
||||
result['changed'] |= True
|
||||
#else: monitor doesn't exist (check mode) or ipport is already ok
|
||||
|
||||
|
||||
except Exception, e:
|
||||
module.fail_json(msg="received exception: %s" % e)
|
||||
|
||||
module.exit_json(**result)
|
||||
|
||||
# include magic from lib/ansible/module_common.py
|
||||
#<<INCLUDE_ANSIBLE_MODULE_COMMON>>
|
||||
main()
|
||||
|
Loading…
Reference in New Issue