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#!/usr/bin/python # -*- coding: utf-8 -*- # Copyright: (c) 2019, Hetzner Cloud GmbH <info@hetzner-cloud.de> # 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 DOCUMENTATION = ''' --- module: hcloud_rdns short_description: Create and manage reverse DNS entries on the Hetzner Cloud. description: - Create, update and delete reverse DNS entries on the Hetzner Cloud. author: - Lukas Kaemmerling (@lkaemmerling) options: server: description: - The name of the Hetzner Cloud server you want to add the reverse DNS entry to. type: str floating_ip: description: - The name of the Hetzner Cloud Floating IP you want to add the reverse DNS entry to. type: str primary_ip: description: - The name of the Hetzner Cloud Primary IP you want to add the reverse DNS entry to. type: str load_balancer: description: - The name of the Hetzner Cloud Load Balancer you want to add the reverse DNS entry to. type: str ip_address: description: - The IP address that should point to I(dns_ptr). type: str required: true dns_ptr: description: - The DNS address the I(ip_address) should resolve to. - Omit the param to reset the reverse DNS entry to the default value. type: str state: description: - State of the reverse DNS entry. default: present choices: [ absent, present ] type: str requirements: - hcloud-python >= 1.3.0 extends_documentation_fragment: - hetzner.hcloud.hcloud ''' EXAMPLES = """ - name: Create a reverse DNS entry for a server hcloud_rdns: server: my-server ip_address: 123.123.123.123 dns_ptr: example.com state: present - name: Create a reverse DNS entry for a Floating IP hcloud_rdns: floating_ip: my-floating-ip ip_address: 123.123.123.123 dns_ptr: example.com state: present - name: Create a reverse DNS entry for a Primary IP hcloud_rdns: primary_ip: my-primary-ip ip_address: 123.123.123.123 dns_ptr: example.com state: present - name: Create a reverse DNS entry for a Load Balancer hcloud_rdns: load_balancer: my-load-balancer ip_address: 123.123.123.123 dns_ptr: example.com state: present - name: Ensure the reverse DNS entry is absent (remove if needed) hcloud_rdns: server: my-server ip_address: 123.123.123.123 dns_ptr: example.com state: absent """ RETURN = """ hcloud_rdns: description: The reverse DNS entry returned: always type: complex contains: server: description: Name of the server type: str returned: always sample: my-server floating_ip: description: Name of the Floating IP type: str returned: always sample: my-floating-ip primary_ip: description: Name of the Primary IP type: str returned: always sample: my-primary-ip load_balancer: description: Name of the Load Balancer type: str returned: always sample: my-load-balancer ip_address: description: The IP address that point to the DNS ptr type: str returned: always sample: 123.123.123.123 dns_ptr: description: The DNS that resolves to the IP type: str returned: always sample: example.com """ from ansible.module_utils.basic import AnsibleModule from ansible.module_utils._text import to_native from ansible_collections.hetzner.hcloud.plugins.module_utils.hcloud import Hcloud from ansible_collections.ansible.netcommon.plugins.module_utils.network.common import utils class AnsibleHcloudReverseDNS(Hcloud): def __init__(self, module): Hcloud.__init__(self, module, "hcloud_rdns") self.hcloud_resource = None self.hcloud_rdns = None def _prepare_result(self): result = { "server": None, "floating_ip": None, "load_balancer": None, "ip_address": to_native(self.hcloud_rdns["ip_address"]), "dns_ptr": to_native(self.hcloud_rdns["dns_ptr"]), } if self.module.params.get("server"): result["server"] = to_native(self.hcloud_resource.name) elif self.module.params.get("floating_ip"): result["floating_ip"] = to_native(self.hcloud_resource.name) elif self.module.params.get("load_balancer"): result["load_balancer"] = to_native(self.hcloud_resource.name) elif self.module.params.get("primary_ip"): result["primary_ip"] = to_native(self.hcloud_resource.name) return result def _get_resource(self): try: if self.module.params.get("server"): self.hcloud_resource = self.client.servers.get_by_name( self.module.params.get("server") ) if self.hcloud_resource is None: self.module.fail_json(msg="The selected server does not exist") elif self.module.params.get("floating_ip"): self.hcloud_resource = self.client.floating_ips.get_by_name( self.module.params.get("floating_ip") ) if self.hcloud_resource is None: self.module.fail_json(msg="The selected Floating IP does not exist") elif self.module.params.get("primary_ip"): self.hcloud_resource = self.client.primary_ips.get_by_name( self.module.params.get("primary_ip") ) if self.hcloud_resource is None: self.module.fail_json(msg="The selected Floating IP does not exist") elif self.module.params.get("load_balancer"): self.hcloud_resource = self.client.load_balancers.get_by_name( self.module.params.get("load_balancer") ) if self.hcloud_resource is None: self.module.fail_json(msg="The selected Load Balancer does not exist") except Exception as e: self.module.fail_json(msg=e.message) def _get_rdns(self): ip_address = self.module.params.get("ip_address") if utils.validate_ip_address(ip_address): if self.module.params.get("server"): if self.hcloud_resource.public_net.ipv4.ip == ip_address: self.hcloud_rdns = { "ip_address": self.hcloud_resource.public_net.ipv4.ip, "dns_ptr": self.hcloud_resource.public_net.ipv4.dns_ptr, } else: self.module.fail_json(msg="The selected server does not have this IP address") elif self.module.params.get("floating_ip"): if self.hcloud_resource.ip == ip_address: self.hcloud_rdns = { "ip_address": self.hcloud_resource.ip, "dns_ptr": self.hcloud_resource.dns_ptr[0]["dns_ptr"], } else: self.module.fail_json(msg="The selected Floating IP does not have this IP address") elif self.module.params.get("primary_ip"): if self.hcloud_resource.ip == ip_address: self.hcloud_rdns = { "ip_address": self.hcloud_resource.ip, "dns_ptr": self.hcloud_resource.dns_ptr[0]["dns_ptr"], } else: self.module.fail_json(msg="The selected Primary IP does not have this IP address") elif self.module.params.get("load_balancer"): if self.hcloud_resource.public_net.ipv4.ip == ip_address: self.hcloud_rdns = { "ip_address": self.hcloud_resource.public_net.ipv4.ip, "dns_ptr": self.hcloud_resource.public_net.ipv4.dns_ptr, } else: self.module.fail_json(msg="The selected Load Balancer does not have this IP address") elif utils.validate_ip_v6_address(ip_address): if self.module.params.get("server"): for ipv6_address_dns_ptr in self.hcloud_resource.public_net.ipv6.dns_ptr: if ipv6_address_dns_ptr["ip"] == ip_address: self.hcloud_rdns = { "ip_address": ipv6_address_dns_ptr["ip"], "dns_ptr": ipv6_address_dns_ptr["dns_ptr"], } elif self.module.params.get("floating_ip"): for ipv6_address_dns_ptr in self.hcloud_resource.dns_ptr: if ipv6_address_dns_ptr["ip"] == ip_address: self.hcloud_rdns = { "ip_address": ipv6_address_dns_ptr["ip"], "dns_ptr": ipv6_address_dns_ptr["dns_ptr"], } elif self.module.params.get("primary_ip"): for ipv6_address_dns_ptr in self.hcloud_resource.dns_ptr: if ipv6_address_dns_ptr["ip"] == ip_address: self.hcloud_rdns = { "ip_address": ipv6_address_dns_ptr["ip"], "dns_ptr": ipv6_address_dns_ptr["dns_ptr"], } elif self.module.params.get("load_balancer"): for ipv6_address_dns_ptr in self.hcloud_resource.public_net.ipv6.dns_ptr: if ipv6_address_dns_ptr["ip"] == ip_address: self.hcloud_rdns = { "ip_address": ipv6_address_dns_ptr["ip"], "dns_ptr": ipv6_address_dns_ptr["dns_ptr"], } else: self.module.fail_json(msg="The given IP address is not valid") def _create_rdns(self): self.module.fail_on_missing_params( required_params=["dns_ptr"] ) params = { "ip": self.module.params.get("ip_address"), "dns_ptr": self.module.params.get("dns_ptr"), } if not self.module.check_mode: try: self.hcloud_resource.change_dns_ptr(**params).wait_until_finished() except Exception as e: self.module.fail_json(msg=e.message) self._mark_as_changed() self._get_resource() self._get_rdns() def _update_rdns(self): dns_ptr = self.module.params.get("dns_ptr") if dns_ptr != self.hcloud_rdns["dns_ptr"]: params = { "ip": self.module.params.get("ip_address"), "dns_ptr": dns_ptr, } if not self.module.check_mode: try: self.hcloud_resource.change_dns_ptr(**params).wait_until_finished() except Exception as e: self.module.fail_json(msg=e.message) self._mark_as_changed() self._get_resource() self._get_rdns() def present_rdns(self): self._get_resource() self._get_rdns() if self.hcloud_rdns is None: self._create_rdns() else: self._update_rdns() def delete_rdns(self): self._get_resource() self._get_rdns() if self.hcloud_rdns is not None: if not self.module.check_mode: try: self.hcloud_resource.change_dns_ptr(ip=self.hcloud_rdns['ip_address'], dns_ptr=None) except Exception as e: self.module.fail_json(msg=e.message) self._mark_as_changed() self.hcloud_rdns = None @staticmethod def define_module(): return AnsibleModule( argument_spec=dict( server={"type": "str"}, floating_ip={"type": "str"}, load_balancer={"type": "str"}, primary_ip={"type": "str"}, ip_address={"type": "str", "required": True}, dns_ptr={"type": "str"}, state={ "choices": ["absent", "present"], "default": "present", }, **Hcloud.base_module_arguments() ), required_one_of=[['server', 'floating_ip', 'load_balancer', 'primary_ip']], mutually_exclusive=[["server", "floating_ip", 'load_balancer', 'primary_ip']], supports_check_mode=True, ) def main(): module = AnsibleHcloudReverseDNS.define_module() hcloud = AnsibleHcloudReverseDNS(module) state = module.params["state"] if state == "absent": hcloud.delete_rdns() elif state == "present": hcloud.present_rdns() module.exit_json(**hcloud.get_result()) if __name__ == "__main__": main()