Move platform guide to this repo (#1024)

* Move platform guide to this repo

* [pre-commit.ci] auto fixes from pre-commit.com hooks

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* fix platform guides

* fix rendering option

---------

Co-authored-by: pre-commit-ci[bot] <66853113+pre-commit-ci[bot]@users.noreply.github.com>

README.md

@@ -22,7 +22,7 @@ PEP440 is the schema used to describe the versions of Ansible.
 
 ### Supported connections
 
-The Cisco IOS collection supports `network_cli` connections.
+The Cisco IOS collection supports `network_cli` connections. A detailed platform guide can be found [here](https://github.com/ansible-collections/cisco.ios/blob/main/platform_guide.rst).
 
 ## Included content
 

platform_guide.rst

@@ -0,0 +1,94 @@
+.. _ios_platform_options:
+
+***************************************
+IOS Platform Options
+***************************************
+
+The `Cisco IOS <https://galaxy.ansible.com/ui/repo/published/cisco/ios>`_ collection supports Enable Mode (Privilege Escalation). This page offers details on how to use Enable Mode on IOS in Ansible.
+
+.. contents::
+  :local:
+
+Connections available
+================================================================================
+
+.. table::
+    :class: documentation-table
+
+    ====================  ==========================================
+    ..                    CLI
+    ====================  ==========================================
+    Protocol              SSH
+
+    Credentials           uses SSH keys / SSH-agent if present
+
+                          accepts ``-u myuser -k`` if using password
+
+    Indirect Access       by a bastion (jump host)
+
+    Connection Settings   ``ansible_connection: ansible.netcommon.network_cli``
+
+    Enable_mode           supported: use ``ansible_become: true`` with
+                          ``ansible_become_method: enable`` and ``ansible_become_password:``
+
+    Returned Data Format  ``stdout[0].``
+    ====================  ==========================================
+
+The ``ansible_connection: local`` has been deprecated. Please use ``ansible_connection: ansible.netcommon.network_cli`` instead.
+
+Using CLI in Ansible
+====================
+
+Example CLI ``group_vars/ios.yml``
+----------------------------------
+
+.. code-block:: yaml
+
+   ansible_connection: ansible.netcommon.network_cli
+   ansible_network_os: cisco.ios.ios
+   ansible_user: myuser
+   ansible_password: !vault...
+   ansible_become: true
+   ansible_become_method: enable
+   ansible_become_password: !vault...
+   ansible_ssh_common_args: '-o ProxyCommand="ssh -W %h:%p -q bastion01"'
+
+
+- If you are using SSH keys (including an ssh-agent) you can remove the ``ansible_password`` configuration.
+- If you are accessing your host directly (not through a bastion/jump host) you can remove the ``ansible_ssh_common_args`` configuration.
+- If you are accessing your host through a bastion/jump host, you cannot include your SSH password in the ``ProxyCommand`` directive. To prevent secrets from leaking out (for example in ``ps`` output), SSH does not support providing passwords through environment variables.
+
+Example CLI task
+----------------
+
+.. code-block:: yaml
+
+   - name: Backup current switch config (ios)
+     cisco.ios.ios_config:
+       backup: yes
+     register: backup_ios_location
+     when: ansible_network_os == 'cisco.ios.ios'
+
+Warning
+--------
+Never store passwords in plain text. We recommend using SSH keys to authenticate SSH connections. Ansible supports ssh-agent to manage your SSH keys. If you must use passwords to authenticate SSH connections, we recommend encrypting them with Ansible Vault.
+
+Cisco IOS-XE platform support matrix
+===================================
+
+The following platforms and software versions have been certified by Cisco to work with this version of Ansible.
+
+.. table:: Platform / Software Minimum Requirements
+     :align: center
+
+     ===================  =====================
+     Supported Platforms  Minimum NX-OS Version
+     ===================  =====================
+     Cisco IOS-XE 9000    17.03.2 and later
+     Cisco IOS-XE 8000    17.03.6 and later
+     ===================  =====================
+
+Notes
+-----
+
+`Setting Timeout Option <https://docs.ansible.com/ansible/latest/network/getting_started/network_connection_options.html#timeout-options>`_