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/cliconf/vyos.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 re
+import json
+
+from itertools import chain
+
+from ansible.module_utils._text import to_bytes, to_text
+from ansible.module_utils.network_common import to_list
+from ansible.plugins.cliconf import CliconfBase, enable_mode
+
+
+class Cliconf(CliconfBase):
+
+    def get_device_info(self):
+        device_info = {}
+
+        device_info['network_os'] = 'vyos'
+        reply = self.get(b'show version')
+        data = to_text(reply, errors='surrogate_or_strict').strip()
+
+        match = re.search(r'Version:\s*(\S+)', data)
+        if match:
+            device_info['network_os_version'] = match.group(1)
+
+        match = re.search(r'HW model:\s*(\S+)', data)
+        if match:
+            device_info['network_os_model'] = match.group(1)
+
+        reply = self.get(b'show host name')
+        device_info['network_os_hostname'] = to_text(reply, errors='surrogate_or_strict').strip()
+
+        return device_info
+
+    def get_config(self):
+        return self.send_command(b'show configuration all')
+
+    def edit_config(self, command):
+        for cmd in chain([b'configure'], to_list(command)):
+            self.send_command(cmd)
+
+    def get(self, *args, **kwargs):
+        return self.send_command(*args, **kwargs)
+
+    def commit(self, comment=None):
+        if comment:
+            command = b'commit comment {0}'.format(comment)
+        else:
+            command = b'commit'
+        self.send_command(command)
+
+    def discard_changes(self, *args, **kwargs):
+        self.send_command(b'discard')
+
+    def get_capabilities(self):
+        result = {}
+        result['rpc'] = self.get_base_rpc() + ['commit', 'discard_changes']
+        result['network_api'] = 'cliconf'
+        result['device_info'] = self.get_device_info()
+        return json.dumps(result)