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ansible-freeipa/plugins/modules/ipadnsforwardzone.py
Rafael Guterres Jeffman 67282b1a6a dnsforwardzone: Use IPAAnsibleModule method to validate arguments. 
Use the IPAAnsibleModule.params_fail_if_used method to validate
arguments provided by user.
2021-10-01 09:50:00 -03:00

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#!/usr/bin/python
# -*- coding: utf-8 -*-
# Authors:
# Chris Procter <cprocter@redhat.com>
#
# Copyright (C) 2019 Red Hat
# see file 'COPYING' for use and warranty information
#
# This program 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.
#
# This program 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 this program. If not, see <http://www.gnu.org/licenses/>.
ANSIBLE_METADATA = {
"metadata_version": "1.0",
"supported_by": "community",
"status": ["preview"],
}
DOCUMENTATION = '''
---
module: ipa_dnsforwardzone
author: chris procter
short_description: Manage FreeIPA DNS Forwarder Zones
description:
- Add and delete an IPA DNS Forwarder Zones using IPA API
extends_documentation_fragment:
- ipamodule_base_docs
options:
name:
description:
- The DNS zone name which needs to be managed.
required: true
aliases: ["cn"]
state:
description: State to ensure
required: false
default: present
choices: ["present", "absent", "enabled", "disabled"]
forwarders:
description:
- List of the DNS servers to forward to
aliases: ["idnsforwarders"]
options:
ip_address:
description: Forwarder IP address (either IPv4 or IPv6).
required: false
type: string
port:
description: Forwarder port.
required: false
type: int
forwardpolicy:
description: Per-zone conditional forwarding policy
required: false
default: only
choices: ["only", "first", "none"]
aliases: ["idnsforwarders"]
skip_overlap_check:
description:
- Force DNS zone creation even if it will overlap with an existing zone.
required: false
default: false
permission:
description:
- Allow DNS Forward Zone to be managed.
required: false
type: bool
'''
EXAMPLES = '''
# Ensure dns zone is present
- ipadnsforwardzone:
ipaadmin_password: SomeADMINpassword
state: present
name: example.com
forwarders:
- ip_address: 8.8.8.8
- ip_address: 4.4.4.4
forwardpolicy: first
skip_overlap_check: true
# Ensure dns zone is present, with forwarder on non-default port
- ipadnsforwardzone:
ipaadmin_password: SomeADMINpassword
state: present
name: example.com
forwarders:
- ip_address: 8.8.8.8
port: 8053
forwardpolicy: first
skip_overlap_check: true
# Ensure that dns zone is removed
- ipadnsforwardzone:
ipaadmin_password: SomeADMINpassword
name: example.com
state: absent
'''
RETURN = '''
'''
from ansible.module_utils._text import to_text
from ansible.module_utils.ansible_freeipa_module import \
IPAAnsibleModule, compare_args_ipa
def find_dnsforwardzone(module, name):
_args = {
"all": True,
"idnsname": name
}
_result = module.ipa_command("dnsforwardzone_find", name, _args)
if len(_result["result"]) > 1:
module.fail_json(
msg="There is more than one dnsforwardzone '%s'" % (name))
elif len(_result["result"]) == 1:
return _result["result"][0]
return None
def gen_args(forwarders, forwardpolicy, skip_overlap_check):
_args = {}
if forwarders is not None:
_args["idnsforwarders"] = forwarders
if forwardpolicy is not None:
_args["idnsforwardpolicy"] = forwardpolicy
if skip_overlap_check is not None:
_args["skip_overlap_check"] = skip_overlap_check
return _args
def forwarder_list(forwarders):
"""Convert the forwarder dict into a list compatible with IPA API."""
if forwarders is None:
return None
fwd_list = []
for forwarder in forwarders:
if forwarder.get('port', None) is not None:
formatter = "{ip_address} port {port}"
else:
formatter = "{ip_address}"
fwd_list.append(to_text(formatter.format(**forwarder)))
return fwd_list
def fix_resource_data_types(resource):
"""Fix resource data types."""
# When running in client context, some data might
# not come as a list, so we need to fix it before
# applying any modifications to it.
forwarders = resource["idnsforwarders"]
if isinstance(forwarders, str):
forwarders = [forwarders]
elif isinstance(forwarders, tuple):
forwarders = list(forwarders)
resource["idnsforwarders"] = forwarders
def main():
ansible_module = IPAAnsibleModule(
argument_spec=dict(
# general
name=dict(type="list", aliases=["cn"], default=None,
required=True),
forwarders=dict(type="list", default=None, required=False,
aliases=["idnsforwarders"], elements='dict',
options=dict(
ip_address=dict(type='str', required=True),
port=dict(type='int', required=False,
default=None),
)),
forwardpolicy=dict(type='str', aliases=["idnsforwardpolicy"],
required=False,
choices=['only', 'first', 'none']),
skip_overlap_check=dict(type='bool', required=False),
permission=dict(type='bool', required=False,
aliases=['managedby']),
action=dict(type="str", default="dnsforwardzone",
choices=["member", "dnsforwardzone"]),
# state
state=dict(type='str', default='present',
choices=['present', 'absent', 'enabled', 'disabled']),
),
supports_check_mode=True,
)
ansible_module._ansible_debug = True
# Get parameters
names = ansible_module.params_get("name")
action = ansible_module.params_get("action")
forwarders = forwarder_list(
ansible_module.params_get("forwarders"))
forwardpolicy = ansible_module.params_get("forwardpolicy")
skip_overlap_check = ansible_module.params_get("skip_overlap_check")
permission = ansible_module.params_get("permission")
state = ansible_module.params_get("state")
if state == 'present' and len(names) != 1:
ansible_module.fail_json(
msg="Only one dnsforwardzone can be added at a time.")
if state == 'absent' and len(names) < 1:
ansible_module.fail_json(msg="No name given.")
# absent stae means delete if the action is NOT member but update if it is
# if action is member then update an exisiting resource
# and if action is not member then create a resource
if state == "absent" and action == "dnsforwardzone":
operation = "del"
elif action == "member":
operation = "update"
else:
operation = "add"
invalid = []
if state in ["enabled", "disabled"]:
if action == "member":
ansible_module.fail_json(
msg="Action `member` cannot be used with state `%s`"
% (state))
invalid = [
"forwarders", "forwardpolicy", "skip_overlap_check", "permission"
]
wants_enable = (state == "enabled")
if operation == "del":
invalid = [
"forwarders", "forwardpolicy", "skip_overlap_check", "permission"
]
ansible_module.params_fail_used_invalid(invalid, state, action)
changed = False
exit_args = {}
args = {}
is_enabled = "IGNORE"
# Connect to IPA API
with ansible_module.ipa_connect():
# we need to determine 3 variables
# args = the values we want to change/set
# command = the ipa api command to call del, add, or mod
# is_enabled = is the current resource enabled (True)
# disabled (False) and do we care (IGNORE)
for name in names:
commands = []
command = None
# Make sure forwardzone exists
existing_resource = find_dnsforwardzone(ansible_module, name)
# validate parameters
if state == 'present':
if existing_resource is None and not forwarders:
ansible_module.fail_json(msg='No forwarders specified.')
if existing_resource is None:
if operation == "add":
# does not exist but should be present
# determine args
args = gen_args(forwarders, forwardpolicy,
skip_overlap_check)
# set command
command = "dnsforwardzone_add"
# enabled or disabled?
elif operation == "update":
# does not exist and is updating
# trying to update something that doesn't exist, so error
ansible_module.fail_json(
msg="dnsforwardzone '%s' not found." % (name))
elif operation == "del":
# there's nothnig to do.
continue
else: # existing_resource is not None
fix_resource_data_types(existing_resource)
if state != "absent":
if forwarders:
forwarders = list(
set(existing_resource["idnsforwarders"]
+ forwarders))
else:
if forwarders:
forwarders = list(
set(existing_resource["idnsforwarders"])
- set(forwarders))
if operation == "add":
# exists and should be present, has it changed?
# determine args
args = gen_args(
forwarders, forwardpolicy, skip_overlap_check)
if 'skip_overlap_check' in args:
del args['skip_overlap_check']
# set command
if not compare_args_ipa(
ansible_module, args, existing_resource):
command = "dnsforwardzone_mod"
elif operation == "del":
# exists but should be absent
# set command
command = "dnsforwardzone_del"
args = {}
elif operation == "update":
# exists and is updating
# calculate the new forwarders and mod
args = gen_args(
forwarders, forwardpolicy, skip_overlap_check)
if "skip_overlap_check" in args:
del args['skip_overlap_check']
# command
if not compare_args_ipa(
ansible_module, args, existing_resource):
command = "dnsforwardzone_mod"
if state in ['enabled', 'disabled']:
if existing_resource is not None:
is_enabled = existing_resource["idnszoneactive"][0]
else:
ansible_module.fail_json(
msg="dnsforwardzone '%s' not found." % (name))
# does the enabled state match what we want (if we care)
if is_enabled != "IGNORE":
if wants_enable and is_enabled != "TRUE":
commands.append([name, "dnsforwardzone_enable", {}])
elif not wants_enable and is_enabled != "FALSE":
commands.append([name, "dnsforwardzone_disable", {}])
# if command is set...
if command is not None:
commands.append([name, command, args])
if permission is not None:
if existing_resource is None:
managedby = None
else:
managedby = existing_resource.get('managedby', None)
if permission and managedby is None:
commands.append(
[name, 'dnsforwardzone_add_permission', {}]
)
elif not permission and managedby is not None:
commands.append(
[name, 'dnsforwardzone_remove_permission', {}]
)
# Check mode exit
if ansible_module.check_mode:
ansible_module.exit_json(changed=len(commands) > 0,
**exit_args)
# Execute commands
for _name, command, args in commands:
ansible_module.ipa_command(command, _name, args)
changed = True
# Done
ansible_module.exit_json(changed=changed, dnsforwardzone=exit_args)
if __name__ == "__main__":
main()
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