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648 lines
19 KiB
Python
648 lines
19 KiB
Python
#!/usr/bin/python
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# -*- coding: utf-8 -*-
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#
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# This file is part of Ansible
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#
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# Ansible is free software: you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation, either version 3 of the License, or
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# (at your option) any later version.
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#
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# Ansible is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with Ansible. If not, see <http://www.gnu.org/licenses/>.
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DOCUMENTATION = '''
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---
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module: bigip_selfip
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short_description: Manage Self-IPs on a BIG-IP system
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description:
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- Manage Self-IPs on a BIG-IP system
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version_added: "2.2"
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options:
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address:
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description:
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- The IP addresses for the new self IP. This value is ignored upon update
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as addresses themselves cannot be changed after they are created.
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allow_service:
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description:
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- Configure port lockdown for the Self IP. By default, the Self IP has a
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"default deny" policy. This can be changed to allow TCP and UDP ports
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as well as specific protocols. This list should contain C(protocol):C(port)
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values.
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name:
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description:
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- The self IP to create.
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required: true
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default: Value of C(address)
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netmask:
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description:
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- The netmasks for the self IP.
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required: true
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state:
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description:
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- The state of the variable on the system. When C(present), guarantees
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that the Self-IP exists with the provided attributes. When C(absent),
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removes the Self-IP from the system.
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required: false
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default: present
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choices:
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- absent
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- present
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traffic_group:
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description:
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- The traffic group for the self IP addresses in an active-active,
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redundant load balancer configuration.
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required: false
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vlan:
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description:
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- The VLAN that the new self IPs will be on.
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required: true
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notes:
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- Requires the f5-sdk Python package on the host. This is as easy as pip
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install f5-sdk.
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- Requires the netaddr Python package on the host.
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extends_documentation_fragment: f5
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requirements:
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- netaddr
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- f5-sdk
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author:
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- Tim Rupp (@caphrim007)
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'''
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EXAMPLES = '''
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- name: Create Self IP
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bigip_selfip:
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address: "10.10.10.10"
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name: "self1"
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netmask: "255.255.255.0"
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password: "secret"
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server: "lb.mydomain.com"
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user: "admin"
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validate_certs: "no"
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vlan: "vlan1"
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delegate_to: localhost
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- name: Delete Self IP
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bigip_selfip:
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name: "self1"
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password: "secret"
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server: "lb.mydomain.com"
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state: "absent"
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user: "admin"
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validate_certs: "no"
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delegate_to: localhost
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- name: Allow management web UI to be accessed on this Self IP
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bigip_selfip:
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name: "self1"
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password: "secret"
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server: "lb.mydomain.com"
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state: "absent"
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user: "admin"
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validate_certs: "no"
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allow_service:
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- "tcp:443"
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delegate_to: localhost
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- name: Allow HTTPS and SSH access to this Self IP
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bigip_selfip:
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name: "self1"
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password: "secret"
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server: "lb.mydomain.com"
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state: "absent"
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user: "admin"
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validate_certs: "no"
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allow_service:
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- "tcp:443"
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- "tpc:22"
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delegate_to: localhost
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- name: Allow all services access to this Self IP
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bigip_selfip:
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name: "self1"
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password: "secret"
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server: "lb.mydomain.com"
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state: "absent"
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user: "admin"
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validate_certs: "no"
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allow_service:
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- all
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delegate_to: localhost
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- name: Allow only GRE and IGMP protocols access to this Self IP
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bigip_selfip:
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name: "self1"
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password: "secret"
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server: "lb.mydomain.com"
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state: "absent"
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user: "admin"
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validate_certs: "no"
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allow_service:
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- gre:0
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- igmp:0
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delegate_to: localhost
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- name: Allow all TCP, but no other protocols access to this Self IP
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bigip_selfip:
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name: "self1"
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password: "secret"
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server: "lb.mydomain.com"
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state: "absent"
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user: "admin"
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validate_certs: "no"
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allow_service:
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- tcp:0
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delegate_to: localhost
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'''
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RETURN = '''
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allow_service:
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description: Services that allowed via this Self IP
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returned: changed
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type: list
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sample: ['igmp:0','tcp:22','udp:53']
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address:
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description: The address for the Self IP
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returned: created
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type: string
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sample: "192.168.10.10"
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name:
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description: The name of the Self IP
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returned:
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- created
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- changed
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- deleted
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type: string
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sample: "self1"
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netmask:
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description: The netmask of the Self IP
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returned:
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- changed
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- created
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type: string
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sample: "255.255.255.0"
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traffic_group:
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description: The traffic group that the Self IP is a member of
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return:
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- changed
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- created
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type: string
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sample: "traffic-group-local-only"
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vlan:
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description: The VLAN set on the Self IP
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return:
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- changed
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- created
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type: string
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sample: "vlan1"
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'''
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try:
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from f5.bigip import ManagementRoot
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from icontrol.session import iControlUnexpectedHTTPError
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HAS_F5SDK = True
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except ImportError:
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HAS_F5SDK = False
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try:
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from netaddr import IPNetwork, AddrFormatError
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HAS_NETADDR = True
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except ImportError:
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HAS_NETADDR = False
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FLOAT = ['enabled', 'disabled']
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DEFAULT_TG = 'traffic-group-local-only'
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ALLOWED_PROTOCOLS = ['eigrp', 'egp', 'gre', 'icmp', 'igmp', 'igp', 'ipip',
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'l2tp', 'ospf', 'pim', 'tcp', 'udp']
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class BigIpSelfIp(object):
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def __init__(self, *args, **kwargs):
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if not HAS_F5SDK:
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raise F5ModuleError("The python f5-sdk module is required")
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# The params that change in the module
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self.cparams = dict()
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# Stores the params that are sent to the module
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self.params = kwargs
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self.api = ManagementRoot(kwargs['server'],
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kwargs['user'],
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kwargs['password'],
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port=kwargs['server_port'])
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def present(self):
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changed = False
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if self.exists():
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changed = self.update()
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else:
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changed = self.create()
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return changed
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def absent(self):
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changed = False
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if self.exists():
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changed = self.delete()
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return changed
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def read(self):
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"""Read information and transform it
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The values that are returned by BIG-IP in the f5-sdk can have encoding
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attached to them as well as be completely missing in some cases.
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Therefore, this method will transform the data from the BIG-IP into a
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format that is more easily consumable by the rest of the class and the
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parameters that are supported by the module.
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:return: List of values currently stored in BIG-IP, formatted for use
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in this class.
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"""
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p = dict()
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name = self.params['name']
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partition = self.params['partition']
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r = self.api.tm.net.selfips.selfip.load(
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name=name,
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partition=partition
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)
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if hasattr(r, 'address'):
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ipnet = IPNetwork(r.address)
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p['address'] = str(ipnet.ip)
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if hasattr(r, 'address'):
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ipnet = IPNetwork(r.address)
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p['netmask'] = str(ipnet.netmask)
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if hasattr(r, 'trafficGroup'):
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p['traffic_group'] = str(r.trafficGroup)
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if hasattr(r, 'vlan'):
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p['vlan'] = str(r.vlan)
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if hasattr(r, 'allowService'):
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if r.allowService == 'all':
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p['allow_service'] = set(['all'])
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else:
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p['allow_service'] = set([str(x) for x in r.allowService])
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else:
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p['allow_service'] = set(['none'])
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p['name'] = name
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return p
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def verify_services(self):
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"""Verifies that a supplied service string has correct format
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The string format for port lockdown is PROTOCOL:PORT. This method
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will verify that the provided input matches the allowed protocols
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and the port ranges before submitting to BIG-IP.
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The only allowed exceptions to this rule are the following values
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* all
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* default
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* none
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These are special cases that are handled differently in the API.
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"all" is set as a string, "default" is set as a one item list, and
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"none" removes the key entirely from the REST API.
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:raises F5ModuleError:
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"""
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result = []
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for svc in self.params['allow_service']:
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if svc in ['all', 'none', 'default']:
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result = [svc]
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break
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tmp = svc.split(':')
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if tmp[0] not in ALLOWED_PROTOCOLS:
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raise F5ModuleError(
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"The provided protocol '%s' is invalid" % (tmp[0])
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)
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try:
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port = int(tmp[1])
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except Exception:
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raise F5ModuleError(
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"The provided port '%s' is not a number" % (tmp[1])
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)
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if port < 0 or port > 65535:
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raise F5ModuleError(
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"The provided port '%s' must be between 0 and 65535"
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% (port)
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)
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else:
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result.append(svc)
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return set(result)
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def fmt_services(self, services):
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"""Returns services formatted for consumption by f5-sdk update
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The BIG-IP endpoint for services takes different values depending on
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what you want the "allowed services" to be. It can be any of the
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following
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- a list containing "protocol:port" values
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- the string "all"
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- a null value, or None
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This is a convenience function to massage the values the user has
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supplied so that they are formatted in such a way that BIG-IP will
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accept them and apply the specified policy.
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:param services: The services to format. This is always a Python set
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:return:
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"""
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result = list(services)
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if result[0] == 'all':
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return 'all'
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elif result[0] == 'none':
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return None
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else:
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return list(services)
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def update(self):
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changed = False
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svcs = []
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params = dict()
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current = self.read()
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check_mode = self.params['check_mode']
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address = self.params['address']
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allow_service = self.params['allow_service']
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name = self.params['name']
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netmask = self.params['netmask']
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partition = self.params['partition']
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traffic_group = self.params['traffic_group']
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vlan = self.params['vlan']
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if address is not None and address != current['address']:
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raise F5ModuleError(
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'Self IP addresses cannot be updated'
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)
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if netmask is not None:
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# I ignore the address value here even if they provide it because
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# you are not allowed to change it.
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try:
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address = IPNetwork(current['address'])
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new_addr = "%s/%s" % (address.ip, netmask)
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nipnet = IPNetwork(new_addr)
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cur_addr = "%s/%s" % (current['address'], current['netmask'])
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cipnet = IPNetwork(cur_addr)
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if nipnet != cipnet:
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address = "%s/%s" % (nipnet.ip, nipnet.prefixlen)
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params['address'] = address
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except AddrFormatError:
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raise F5ModuleError(
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'The provided address/netmask value was invalid'
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)
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if traffic_group is not None:
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groups = self.api.tm.cm.traffic_groups.get_collection()
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params['trafficGroup'] = "/%s/%s" % (partition, traffic_group)
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if 'traffic_group' in current:
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if traffic_group != current['traffic_group']:
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params['trafficGroup'] = traffic_group
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else:
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params['trafficGroup'] = traffic_group
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if traffic_group not in groups:
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raise F5ModuleError(
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'The specified traffic group was not found'
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)
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if vlan is not None:
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vlans = self.get_vlans()
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vlan = "/%s/%s" % (partition, vlan)
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if 'vlan' in current:
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if vlan != current['vlan']:
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params['vlan'] = vlan
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else:
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params['vlan'] = vlan
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if vlan not in vlans:
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raise F5ModuleError(
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'The specified VLAN was not found'
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)
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if allow_service is not None:
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svcs = self.verify_services()
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if 'allow_service' in current:
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if svcs != current['allow_service']:
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params['allowService'] = self.fmt_services(svcs)
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else:
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params['allowService'] = self.fmt_services(svcs)
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if params:
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changed = True
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params['name'] = name
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params['partition'] = partition
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if check_mode:
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return changed
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self.cparams = camel_dict_to_snake_dict(params)
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if svcs:
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self.cparams['allow_service'] = list(svcs)
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else:
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return changed
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r = self.api.tm.net.selfips.selfip.load(
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name=name,
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partition=partition
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)
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r.update(**params)
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r.refresh()
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return True
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def get_vlans(self):
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"""Returns formatted list of VLANs
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The VLAN values stored in BIG-IP are done so using their fully
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qualified name which includes the partition. Therefore, "correct"
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values according to BIG-IP look like this
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/Common/vlan1
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This is in contrast to the formats that most users think of VLANs
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as being stored as
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vlan1
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To provide for the consistent user experience while not turfing
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BIG-IP, we need to massage the values that are provided by the
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user so that they include the partition.
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:return: List of vlans formatted with preceeding partition
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"""
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partition = self.params['partition']
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vlans = self.api.tm.net.vlans.get_collection()
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return [str("/" + partition + "/" + x.name) for x in vlans]
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def create(self):
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params = dict()
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svcs = []
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check_mode = self.params['check_mode']
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address = self.params['address']
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allow_service = self.params['allow_service']
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name = self.params['name']
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netmask = self.params['netmask']
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partition = self.params['partition']
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traffic_group = self.params['traffic_group']
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vlan = self.params['vlan']
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if address is None or netmask is None:
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raise F5ModuleError(
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'An address and a netmask must be specififed'
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)
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if vlan is None:
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raise F5ModuleError(
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'A VLAN name must be specified'
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)
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else:
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vlan = "/%s/%s" % (partition, vlan)
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try:
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ipin = "%s/%s" % (address, netmask)
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ipnet = IPNetwork(ipin)
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params['address'] = "%s/%s" % (ipnet.ip, ipnet.prefixlen)
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except AddrFormatError:
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raise F5ModuleError(
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'The provided address/netmask value was invalid'
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)
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if traffic_group is None:
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params['trafficGroup'] = "/%s/%s" % (partition, DEFAULT_TG)
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else:
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groups = self.api.tm.cm.traffic_groups.get_collection()
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if traffic_group in groups:
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params['trafficGroup'] = "/%s/%s" % (partition, traffic_group)
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else:
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raise F5ModuleError(
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'The specified traffic group was not found'
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)
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vlans = self.get_vlans()
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if vlan in vlans:
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params['vlan'] = vlan
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else:
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raise F5ModuleError(
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'The specified VLAN was not found'
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)
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if allow_service is not None:
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svcs = self.verify_services()
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params['allowService'] = self.fmt_services(svcs)
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params['name'] = name
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params['partition'] = partition
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self.cparams = camel_dict_to_snake_dict(params)
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if svcs:
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self.cparams['allow_service'] = list(svcs)
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if check_mode:
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return True
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d = self.api.tm.net.selfips.selfip
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d.create(**params)
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if self.exists():
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return True
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else:
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raise F5ModuleError("Failed to create the self IP")
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def delete(self):
|
|
params = dict()
|
|
check_mode = self.params['check_mode']
|
|
|
|
params['name'] = self.params['name']
|
|
params['partition'] = self.params['partition']
|
|
|
|
self.cparams = camel_dict_to_snake_dict(params)
|
|
if check_mode:
|
|
return True
|
|
|
|
dc = self.api.tm.net.selfips.selfip.load(**params)
|
|
dc.delete()
|
|
|
|
if self.exists():
|
|
raise F5ModuleError("Failed to delete the self IP")
|
|
return True
|
|
|
|
def exists(self):
|
|
name = self.params['name']
|
|
partition = self.params['partition']
|
|
return self.api.tm.net.selfips.selfip.exists(
|
|
name=name,
|
|
partition=partition
|
|
)
|
|
|
|
def flush(self):
|
|
result = dict()
|
|
state = self.params['state']
|
|
|
|
try:
|
|
if state == "present":
|
|
changed = self.present()
|
|
elif state == "absent":
|
|
changed = self.absent()
|
|
except iControlUnexpectedHTTPError as e:
|
|
raise F5ModuleError(str(e))
|
|
|
|
result.update(**self.cparams)
|
|
result.update(dict(changed=changed))
|
|
return result
|
|
|
|
|
|
def main():
|
|
argument_spec = f5_argument_spec()
|
|
|
|
meta_args = dict(
|
|
address=dict(required=False, default=None),
|
|
allow_service=dict(type='list', default=None),
|
|
name=dict(required=True),
|
|
netmask=dict(required=False, default=None),
|
|
traffic_group=dict(required=False, default=None),
|
|
vlan=dict(required=False, default=None)
|
|
)
|
|
argument_spec.update(meta_args)
|
|
|
|
module = AnsibleModule(
|
|
argument_spec=argument_spec,
|
|
supports_check_mode=True
|
|
)
|
|
|
|
try:
|
|
if not HAS_NETADDR:
|
|
raise F5ModuleError(
|
|
"The netaddr python module is required."
|
|
)
|
|
|
|
obj = BigIpSelfIp(check_mode=module.check_mode, **module.params)
|
|
result = obj.flush()
|
|
|
|
module.exit_json(**result)
|
|
except F5ModuleError as e:
|
|
module.fail_json(msg=str(e))
|
|
|
|
from ansible.module_utils.basic import *
|
|
from ansible.module_utils.ec2 import camel_dict_to_snake_dict
|
|
from ansible.module_utils.f5 import *
|
|
|
|
if __name__ == '__main__':
|
|
main()
|