[WIP] Add new network module for EdgeOS (#33109)

* Add edgeos network module using network_cli

* Add documentation and some sanity test fixes

* Update copyright and documentation

lib/ansible/plugins/cliconf/edgeos.py

@@ -0,0 +1,69 @@
+# Copyright: (c) 2017, Ansible Project
+# 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
+
+import re
+import json
+
+from itertools import chain
+
+from ansible.module_utils._text import to_bytes, to_text
+from ansible.module_utils.network.common.utils import to_list
+from ansible.plugins.cliconf import CliconfBase
+
+
+class Cliconf(CliconfBase):
+
+    def get_device_info(self):
+        device_info = {}
+
+        device_info['network_os'] = 'edgeos'
+        reply = self.get(b'show version')
+        data = to_text(reply, errors='surrogate_or_strict').strip()
+
+        match = re.search(r'Version:\s*v?(\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')
+        reply = to_text(reply, errors='surrogate_or_strict').strip()
+        device_info['network_os_hostname'] = reply
+
+        return device_info
+
+    def get_config(self):
+        return self.send_command(b'show configuration commands')
+
+    def edit_config(self, command):
+        for cmd in chain([b'configure'], to_list(command)):
+            self.send_command(cmd)
+
+    def get(self, command, prompt=None, answer=None, sendonly=False):
+        return self.send_command(to_bytes(command),
+                                 prompt=to_bytes(prompt),
+                                 answer=to_bytes(answer),
+                                 sendonly=sendonly)
+
+    def commit(self, comment=None):
+        if comment:
+            command = 'commit comment "{0}"'.format(comment)
+        else:
+            command = '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)