Add ssh_args and friends back, add var for proxy_command (#78826)

Fixes #78750

changelogs/fragments/78750-paramiko-ssh-args-compat.yml

@@ -0,0 +1,3 @@
+bugfixes:
+- paramiko - Add back support for ``ssh_args``, ``ssh_common_args``, and ``ssh_extra_args`` for parsing the ``ProxyCommand``
+  (https://github.com/ansible/ansible/issues/78750)

lib/ansible/plugins/connection/paramiko_ssh.py

@@ -79,6 +79,60 @@ DOCUMENTATION = """
         env: [{name: ANSIBLE_PARAMIKO_PROXY_COMMAND}]
         ini:
           - {key: proxy_command, section: paramiko_connection}
+        vars:
+          - name: ansible_paramiko_proxy_command
+            version_added: '2.15'
+      ssh_args:
+          description: Only used in parsing ProxyCommand for use in this plugin.
+          default: ''
+          ini:
+              - section: 'ssh_connection'
+                key: 'ssh_args'
+          env:
+              - name: ANSIBLE_SSH_ARGS
+          vars:
+              - name: ansible_ssh_args
+                version_added: '2.7'
+          deprecated:
+              why: In favor of the "proxy_command" option.
+              version: "2.18"
+              alternatives: proxy_command
+      ssh_common_args:
+          description: Only used in parsing ProxyCommand for use in this plugin.
+          ini:
+              - section: 'ssh_connection'
+                key: 'ssh_common_args'
+                version_added: '2.7'
+          env:
+              - name: ANSIBLE_SSH_COMMON_ARGS
+                version_added: '2.7'
+          vars:
+              - name: ansible_ssh_common_args
+          cli:
+              - name: ssh_common_args
+          default: ''
+          deprecated:
+              why: In favor of the "proxy_command" option.
+              version: "2.18"
+              alternatives: proxy_command
+      ssh_extra_args:
+          description: Only used in parsing ProxyCommand for use in this plugin.
+          vars:
+              - name: ansible_ssh_extra_args
+          env:
+            - name: ANSIBLE_SSH_EXTRA_ARGS
+              version_added: '2.7'
+          ini:
+            - key: ssh_extra_args
+              section: ssh_connection
+              version_added: '2.7'
+          cli:
+            - name: ssh_extra_args
+          default: ''
+          deprecated:
+              why: In favor of the "proxy_command" option.
+              version: "2.18"
+              alternatives: proxy_command
       pty:
         default: True
         description: 'SUDO usually requires a PTY, True to give a PTY and False to not give a PTY.'
@@ -267,9 +321,9 @@ class Connection(ConnectionBase):
         proxy_command = None
         # Parse ansible_ssh_common_args, specifically looking for ProxyCommand
         ssh_args = [
-            getattr(self._play_context, 'ssh_extra_args', '') or '',
-            getattr(self._play_context, 'ssh_common_args', '') or '',
-            getattr(self._play_context, 'ssh_args', '') or '',
+            self.get_option('ssh_extra_args'),
+            self.get_option('ssh_common_args'),
+            self.get_option('ssh_args', ''),
         ]
 
         args = self._split_ssh_args(' '.join(ssh_args))
@@ -287,7 +341,7 @@ class Connection(ConnectionBase):
             if proxy_command:
                 break
 
-        proxy_command = proxy_command or self.get_option('proxy_command')
+        proxy_command = self.get_option('proxy_command') or proxy_command
 
         sock_kwarg = {}
         if proxy_command: