issue #278: ansible: support mitogen_ssh_debug_level variable.

ansible_mitogen/connection.py

@@ -83,6 +83,7 @@ def _connect_ssh(spec):
             'ssh_path': spec['ssh_executable'],
             'connect_timeout': spec['ansible_ssh_timeout'],
             'ssh_args': spec['ssh_args'],
+            'ssh_debug_level': spec['mitogen_ssh_debug_level'],
         }
     }
 
@@ -260,6 +261,7 @@ def config_from_play_context(transport, inventory_name, connection):
         'mitogen_docker_path': connection.mitogen_docker_path,
         'mitogen_lxc_info_path': connection.mitogen_lxc_info_path,
         'mitogen_machinectl_path': connection.mitogen_machinectl_path,
+        'mitogen_ssh_debug_level': connection.mitogen_ssh_debug_level,
     }
 
 
@@ -334,6 +336,9 @@ class Connection(ansible.plugins.connection.ConnectionBase):
     #: Set to 'mitogen_lxc_info_path' by on_action_run().
     mitogen_machinectl_path = None
 
+    #: Set to 'mitogen_ssh_debug_level' by on_action_run().
+    mitogen_ssh_debug_level = None
+
     #: Set to 'inventory_hostname' by on_action_run().
     inventory_hostname = None
 
@@ -374,6 +379,7 @@ class Connection(ansible.plugins.connection.ConnectionBase):
         self.mitogen_docker_path = task_vars.get('mitogen_docker_path')
         self.mitogen_lxc_info_path = task_vars.get('mitogen_lxc_info_path')
         self.mitogen_machinectl_path = task_vars.get('mitogen_machinectl_path')
+        self.mitogen_ssh_debug_level = task_vars.get('mitogen_ssh_debug_level')
         self.inventory_hostname = task_vars['inventory_hostname']
         self.host_vars = task_vars['hostvars']
         self.close(new_task=True)

docs/ansible.rst

@@ -619,6 +619,8 @@ except connection delegation is supported.
 * ``ansible_ssh_private_key_file``
 * ``ansible_ssh_pass``, ``ansible_password`` (default: assume passwordless)
 * ``ssh_args``, ``ssh_common_args``, ``ssh_extra_args``
+* ``mitogen_ssh_debug_level``: integer between `0..3` indicating the SSH client
+  debug level. Ansible must also be run with '-vvv' to view the output.
 
 
 Debugging