EdgeOS module improvements (ansible#39530)

* Update docs and use to_text on strings

* Add warning to use network_cli

lib/ansible/modules/network/edgeos/edgeos_command.py

@@ -25,6 +25,9 @@
     use a custom pager that can cause this module to hang.  If the
     value of the environment variable C(ANSIBLE_EDGEOS_TERMINAL_LENGTH)
     is not set, the default number of 10000 is used.
+  - "This is a network module and requires C(connection: network_cli)
+    in order to work properly."
+  - For more information please see the L(Network Guide,../network/getting_started/index.html).
 options:
   commands:
     description:
@@ -95,17 +98,18 @@
 
 import time
 
+from ansible.module_utils._text import to_text
 from ansible.module_utils.basic import AnsibleModule
-from ansible.module_utils.network.common.utils import ComplexList
 from ansible.module_utils.network.common.parsing import Conditional
+from ansible.module_utils.network.common.utils import ComplexList
 from ansible.module_utils.network.edgeos.edgeos import run_commands
 from ansible.module_utils.six import string_types
 
 
 def to_lines(stdout):
     for item in stdout:
         if isinstance(item, string_types):
-            item = str(item).split('\n')
+            item = to_text(item).split('\n')
         yield item
 
 
@@ -149,7 +153,7 @@ def main():
     try:
         conditionals = [Conditional(c) for c in wait_for]
     except AttributeError as e:
-        module.fail_json(msg=str(e))
+        module.fail_json(msg=to_text(e))
 
     retries = module.params['retries']
     interval = module.params['interval']

lib/ansible/modules/network/edgeos/edgeos_config.py

@@ -25,6 +25,9 @@
     configuration file and state of the active configuration. All
     configuration statements are based on `set` and `delete` commands
     in the device configuration.
+  - "This is a network module and requires the C(connection: network_cli) in order
+    to work properly."
+  - For more information please see the L(Network Guide,../network/getting_started/index.html).
 notes:
   - Tested against EdgeOS 1.9.7
   - Setting C(ANSIBLE_PERSISTENT_COMMAND_TIMEOUT) to 30 is recommended since
@@ -54,10 +57,12 @@
     choices: ['line', 'none']
   backup:
     description:
-      - The C(backup) argument will backup the current devices active
+      - The C(backup) argument will backup the current device's active
         configuration to the Ansible control host prior to making any
         changes. The backup file will be located in the backup folder
-        in the root of the playbook
+        in the playbook root directory or role root directory if the
+        playbook is part of an ansible role. If the directory does not
+        exist, it is created.
     type: bool
     default: 'no'
   comment:
@@ -116,10 +121,12 @@
 
 import re
 
+from ansible.module_utils._text import to_native
 from ansible.module_utils.basic import AnsibleModule
 from ansible.module_utils.network.common.config import NetworkConfig
 from ansible.module_utils.network.edgeos.edgeos import load_config, get_config, run_commands
 
+
 DEFAULT_COMMENT = 'configured by edgeos_config'
 
 CONFIG_FILTERS = [
@@ -144,7 +151,7 @@ def config_to_commands(config):
         commands = ['set %s' % cmd.replace(' {', '') for cmd in commands]
 
     else:
-        commands = str(candidate).split('\n')
+        commands = to_native(candidate).split('\n')
 
     return commands
 
@@ -159,13 +166,13 @@ def get_candidate(module):
 
 
 def diff_config(commands, config):
-    config = [str(c).replace("'", '') for c in config.splitlines()]
+    config = [to_native(c).replace("'", '') for c in config.splitlines()]
 
     updates = list()
     visited = set()
 
     for line in commands:
-        item = str(line).replace("'", '')
+        item = to_native(line).replace("'", '')
 
         if not item.startswith('set') and not item.startswith('delete'):
             raise ValueError('line must start with either `set` or `delete`')

lib/ansible/plugins/action/edgeos_config.py

@@ -35,6 +35,8 @@
 class ActionModule(_ActionModule):
 
     def run(self, tmp=None, task_vars=None):
+        if self._play_context.connection != 'network_cli':
+            return {'failed': True, 'msg': 'Connection type %s is not valid for this module. Must use network_cli.' % self._play_context.connection}
 
         if self._task.args.get('src'):
             try:

lib/ansible/plugins/terminal/edgeos.py

@@ -1,6 +1,5 @@
 # Copyright: (c) 2018, Ansible Project
-# GNU General Public License v3.0+
-# (see COPYING or https://www.gnu.org/licenses/gpl-3.0.txt)
+# 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