Add support for cliconf and netconf plugin (#25093)

* ansible-connection refactor and action plugin changes
* Add cliconf plugin for eos, ios, iosxr, junos, nxos, vyos
* Add netconf plugin for junos
* Add jsonrpc support
* Modify network_cli and netconf connection plugin
* Fix py3 unit test failure
* Fix review comment
* Minor fixes
* Fix ansible-connection review comments
* Fix CI issue
* platform_agnostic related changes

lib/ansible/plugins/netconf/junos.py

@@ -0,0 +1,79 @@
+#
+# (c) 2017 Red Hat Inc.
+#
+# 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/>.
+#
+from __future__ import (absolute_import, division, print_function)
+__metaclass__ = type
+
+import json
+
+from xml.etree.ElementTree import fromstring
+
+from ansible.module_utils._text import to_bytes, to_text
+from ansible.plugins.netconf import NetconfBase
+from ansible.plugins.netconf import ensure_connected
+
+from ncclient.xml_ import new_ele
+
+
+class Netconf(NetconfBase):
+
+    def get_text(self, ele, tag):
+        try:
+            return to_text(ele.find(tag).text, errors='surrogate_then_replace').strip()
+        except AttributeError:
+            pass
+
+    def get_device_info(self):
+        device_info = {}
+
+        device_info['network_os'] = 'junos'
+        data = self.execute_rpc('get-software-information')
+        reply = fromstring(data)
+        sw_info = reply.find('.//software-information')
+
+        device_info['network_os_version'] = self.get_text(sw_info, 'junos-version')
+        device_info['network_os_hostname'] = self.get_text(sw_info, 'host-name')
+        device_info['network_os_model'] = self.get_text(sw_info, 'product-model')
+
+        return device_info
+
+    @ensure_connected
+    def execute_rpc(self, rpc):
+        """RPC to be execute on remote device
+           :rpc: Name of rpc in string format"""
+        name = new_ele(rpc)
+        return self.m.rpc(name).data_xml
+
+    @ensure_connected
+    def load_configuration(self, *args, **kwargs):
+        """Loads given configuration on device
+        :format: Format of configuration (xml, text, set)
+        :action: Action to be performed (merge, replace, override, update)
+        :target: is the name of the configuration datastore being edited
+        :config: is the configuration in string format."""
+        return self.m.load_configuration(*args, **kwargs).data_xml
+
+    def get_capabilities(self):
+        result = {}
+        result['rpc'] = self.get_base_rpc() + ['commit', 'discard_changes', 'validate', 'lock', 'unlock', 'copy_copy']
+        result['network_api'] = 'netconf'
+        result['device_info'] = self.get_device_info()
+        result['server_capabilities'] = [c for c in self.m.server_capabilities]
+        result['client_capabilities'] = [c for c in self.m.client_capabilities]
+        result['session_id'] = self.m.session_id
+        return json.dumps(result)