#!/usr/bin/python
# (c) 2018-2019, NetApp, Inc
# GNU General Public License v3.0+ (see COPYING or https://www.gnu.org/licenses/gpl-3.0.txt)
from __future__ import absolute_import, division, print_function
__metaclass__ = type
ANSIBLE_METADATA = {'metadata_version': '1.1',
'status': ['preview'],
'supported_by': 'certified'}
DOCUMENTATION = '''
module: na_ontap_firewall_policy
short_description: NetApp ONTAP Manage a firewall policy
version_added: '2.7'
author: NetApp Ansible Team (@carchi8py) <[email protected]>
description:
- Configure firewall on an ONTAP node and manage firewall policy for an ONTAP SVM
extends_documentation_fragment:
- netapp.na_ontap
requirements:
- Python package ipaddress. Install using 'pip install ipaddress'
options:
state:
description:
- Whether to set up a firewall policy or not
choices: ['present', 'absent']
default: present
allow_list:
description:
- A list of IPs and masks to use.
- The host bits of the IP addresses used in this list must be set to 0.
policy:
description:
- A policy name for the firewall policy
service:
description:
- The service to apply the policy to
choices: ['dns', 'http', 'https', 'ndmp', 'ndmps', 'ntp', 'rsh', 'snmp', 'ssh', 'telnet']
vserver:
description:
- The Vserver to apply the policy to.
enable:
description:
- enable firewall on a node
choices: ['enable', 'disable']
logging:
description:
- enable logging for firewall on a node
choices: ['enable', 'disable']
node:
description:
- The node to run the firewall configuration on
'''
EXAMPLES = """
- name: create firewall Policy
na_ontap_firewall_policy:
state: present
allow_list: [1.2.3.0/24,1.3.0.0/16]
policy: pizza
service: http
vserver: ci_dev
hostname: "{{ netapp hostname }}"
username: "{{ netapp username }}"
password: "{{ netapp password }}"
- name: Modify firewall Policy
na_ontap_firewall_policy:
state: present
allow_list: [1.5.3.0/24]
policy: pizza
service: http
vserver: ci_dev
hostname: "{{ netapp hostname }}"
username: "{{ netapp username }}"
password: "{{ netapp password }}"
- name: Destroy firewall Policy
na_ontap_firewall_policy:
state: absent
policy: pizza
service: http
vserver: ci_dev
hostname: "{{ netapp hostname }}"
username: "{{ netapp username }}"
password: "{{ netapp password }}"
- name: Enable firewall and logging on a node
na_ontap_firewall_policy:
node: test-vsim1
enable: enable
logging: enable
hostname: "{{ netapp hostname }}"
username: "{{ netapp username }}"
password: "{{ netapp password }}"
"""
RETURN = """
"""
import traceback
from ansible.module_utils.basic import AnsibleModule
from ansible.module_utils._text import to_native
import ansible.module_utils.netapp as netapp_utils
from ansible.module_utils.netapp_module import NetAppModule
try:
import ipaddress
HAS_IPADDRESS_LIB = True
except ImportError:
HAS_IPADDRESS_LIB = False
import sys
HAS_NETAPP_LIB = netapp_utils.has_netapp_lib()
class NetAppONTAPFirewallPolicy(object):
def __init__(self):
self.argument_spec = netapp_utils.na_ontap_host_argument_spec()
self.argument_spec.update(dict(
state=dict(required=False, choices=['present', 'absent'], default='present'),
allow_list=dict(required=False, type="list"),
policy=dict(required=False, type='str'),
service=dict(required=False, type='str', choices=['dns', 'http', 'https', 'ndmp',
'ndmps', 'ntp', 'rsh', 'snmp', 'ssh', 'telnet']),
vserver=dict(required=False, type="str"),
enable=dict(required=False, type="str", choices=['enable', 'disable']),
logging=dict(required=False, type="str", choices=['enable', 'disable']),
node=dict(required=False, type="str")
))
self.module = AnsibleModule(
argument_spec=self.argument_spec,
required_together=(['policy', 'service', 'vserver'],
['enable', 'node']
),
supports_check_mode=True
)
self.na_helper = NetAppModule()
self.parameters = self.na_helper.set_parameters(self.module.params)
if HAS_NETAPP_LIB is False:
self.module.fail_json(msg="the python NetApp-Lib module is required")
else:
self.server = netapp_utils.setup_na_ontap_zapi(module=self.module)
if HAS_IPADDRESS_LIB is False:
self.module.fail_json(msg="the python ipaddress lib is required for this module")
return
def validate_ip_addresses(self):
'''
Validate if the given IP address is a network address (i.e. it's host bits are set to 0)
ONTAP doesn't validate if the host bits are set,
and hence doesn't add a new address unless the IP is from a different network.
So this validation allows the module to be idempotent.
:return: None
'''
for ip in self.parameters['allow_list']:
# create an IPv4 object for current IP address
if sys.version_info[0] >= 3:
ip_addr = str(ip)
else:
ip_addr = unicode(ip) # pylint: disable=undefined-variable
# get network address from netmask, throw exception if address is not a network address
try:
ipaddress.ip_network(ip_addr)
except ValueError as exc:
self.module.fail_json(msg='Error: Invalid IP address value for allow_list parameter.'
'Please specify a network address without host bits set: %s'
% (to_native(exc)))
def get_firewall_policy(self):
"""
Get a firewall policy
:return: returns a firewall policy object, or returns False if there are none
"""
net_firewall_policy_obj = netapp_utils.zapi.NaElement("net-firewall-policy-get-iter")
attributes = {
'query': {
'net-firewall-policy-info': self.firewall_policy_attributes()
}
}
net_firewall_policy_obj.translate_struct(attributes)
try:
result = self.server.invoke_successfully(net_firewall_policy_obj, True)
except netapp_utils.zapi.NaApiError as error:
self.module.fail_json(msg="Error getting firewall policy %s:%s" % (self.parameters['policy'],
to_native(error)),
exception=traceback.format_exc())
if result.get_child_by_name('num-records') and int(result.get_child_content('num-records')) >= 1:
attributes_list = result.get_child_by_name('attributes-list')
policy_info = attributes_list.get_child_by_name('net-firewall-policy-info')
ips = self.na_helper.get_value_for_list(from_zapi=True,
zapi_parent=policy_info.get_child_by_name('allow-list'))
return {
'service': policy_info['service'],
'allow_list': ips}
return None
def create_firewall_policy(self):
"""
Create a firewall policy for given vserver
:return: None
"""
net_firewall_policy_obj = netapp_utils.zapi.NaElement("net-firewall-policy-create")
net_firewall_policy_obj.translate_struct(self.firewall_policy_attributes())
if self.parameters.get('allow_list'):
self.validate_ip_addresses()
net_firewall_policy_obj.add_child_elem(self.na_helper.get_value_for_list(from_zapi=False,
zapi_parent='allow-list',
zapi_child='ip-and-mask',
data=self.parameters['allow_list'])
)
try:
self.server.invoke_successfully(net_firewall_policy_obj, enable_tunneling=True)
except netapp_utils.zapi.NaApiError as error:
self.module.fail_json(msg="Error creating Firewall Policy: %s" % (to_native(error)), exception=traceback.format_exc())
def destroy_firewall_policy(self):
"""
Destroy a Firewall Policy from a vserver
:return: None
"""
net_firewall_policy_obj = netapp_utils.zapi.NaElement("net-firewall-policy-destroy")
net_firewall_policy_obj.translate_struct(self.firewall_policy_attributes())
try:
self.server.invoke_successfully(net_firewall_policy_obj, enable_tunneling=True)
except netapp_utils.zapi.NaApiError as error:
self.module.fail_json(msg="Error destroying Firewall Policy: %s" % (to_native(error)), exception=traceback.format_exc())
def modify_firewall_policy(self, modify):
"""
Modify a firewall Policy on a vserver
:return: none
"""
self.validate_ip_addresses()
net_firewall_policy_obj = netapp_utils.zapi.NaElement("net-firewall-policy-modify")
net_firewall_policy_obj.translate_struct(self.firewall_policy_attributes())
net_firewall_policy_obj.add_child_elem(self.na_helper.get_value_for_list(from_zapi=False,
zapi_parent='allow-list',
zapi_child='ip-and-mask',
data=modify['allow_list']))
try:
self.server.invoke_successfully(net_firewall_policy_obj, enable_tunneling=True)
except netapp_utils.zapi.NaApiError as error:
self.module.fail_json(msg="Error modifying Firewall Policy: %s" % (to_native(error)), exception=traceback.format_exc())
def firewall_policy_attributes(self):
return {
'policy': self.parameters['policy'],
'service': self.parameters['service'],
'vserver': self.parameters['vserver'],
}
def get_firewall_config_for_node(self):
"""
Get firewall configuration on the node
:return: dict() with firewall config details
"""
if self.parameters.get('logging'):
if self.parameters.get('node') is None:
self.module.fail_json(msg='Error: Missing parameter \'node\' to modify firewall logging')
net_firewall_config_obj = netapp_utils.zapi.NaElement("net-firewall-config-get")
net_firewall_config_obj.add_new_child('node-name', self.parameters['node'])
try:
result = self.server.invoke_successfully(net_firewall_config_obj, True)
except netapp_utils.zapi.NaApiError as error:
self.module.fail_json(msg="Error getting Firewall Configuration: %s" % (to_native(error)),
exception=traceback.format_exc())
if result.get_child_by_name('attributes'):
firewall_info = result['attributes'].get_child_by_name('net-firewall-config-info')
return {'enable': self.change_status_to_bool(firewall_info.get_child_content('is-enabled'), to_zapi=False),
'logging': self.change_status_to_bool(firewall_info.get_child_content('is-logging'), to_zapi=False)}
return None
def modify_firewall_config(self, modify):
"""
Modify the configuration of a firewall on node
:return: None
"""
net_firewall_config_obj = netapp_utils.zapi.NaElement("net-firewall-config-modify")
net_firewall_config_obj.add_new_child('node-name', self.parameters['node'])
if modify.get('enable'):
net_firewall_config_obj.add_new_child('is-enabled', self.change_status_to_bool(self.parameters['enable']))
if modify.get('logging'):
net_firewall_config_obj.add_new_child('is-logging', self.change_status_to_bool(self.parameters['logging']))
try:
self.server.invoke_successfully(net_firewall_config_obj, enable_tunneling=True)
except netapp_utils.zapi.NaApiError as error:
self.module.fail_json(msg="Error modifying Firewall Config: %s" % (to_native(error)),
exception=traceback.format_exc())
def change_status_to_bool(self, input, to_zapi=True):
if to_zapi:
return 'true' if input == 'enable' else 'false'
else:
return 'enable' if input == 'true' else 'disable'
def autosupport_log(self):
results = netapp_utils.get_cserver(self.server)
cserver = netapp_utils.setup_na_ontap_zapi(module=self.module, vserver=results)
netapp_utils.ems_log_event("na_ontap_firewall_policy", cserver)
def apply(self):
self.autosupport_log()
cd_action, modify, modify_config = None, None, None
if self.parameters.get('policy'):
current = self.get_firewall_policy()
cd_action = self.na_helper.get_cd_action(current, self.parameters)
if cd_action is None and self.parameters['state'] == 'present':
modify = self.na_helper.get_modified_attributes(current, self.parameters)
if self.parameters.get('node'):
current_config = self.get_firewall_config_for_node()
# firewall config for a node is always present, we cannot create or delete a firewall on a node
modify_config = self.na_helper.get_modified_attributes(current_config, self.parameters)
if self.na_helper.changed:
if self.module.check_mode:
pass
else:
if cd_action == 'create':
self.create_firewall_policy()
elif cd_action == 'delete':
self.destroy_firewall_policy()
else:
if modify:
self.modify_firewall_policy(modify)
if modify_config:
self.modify_firewall_config(modify_config)
self.module.exit_json(changed=self.na_helper.changed)
def main():
"""
Execute action from playbook
:return: nothing
"""
cg_obj = NetAppONTAPFirewallPolicy()
cg_obj.apply()
if __name__ == '__main__':
main()
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