@@ -401,6 +401,10 @@

 # only be disabled if your sftp version has problems with batch mode

 #sftp_batch_mode = False

+# The -tt argument is passed to ssh when pipelining is not enabled because sudo 

+# requires a tty by default. 

+#use_tty = True

+

 [persistent_connection]

 # Configures the persistent connection timeout value in seconds.  This value is

@@ -185,6 +185,15 @@ DOCUMENTATION = '''

         env: [{name: ANSIBLE_SCP_IF_SSH}]

         ini:

         - {key: scp_if_ssh, section: ssh_connection}

+      use_tty:

+        version_added: '2.5'

+        default: True

+        description: add -tt to ssh commands to force tty allocation

+        env: [{name: ANSIBLE_SSH_USETTY}]

+        ini:

+        - {key: usetty, section: ssh_connection}

+        type: boolean

+        yaml: {key: connection.usetty}

 '''

 import errno

@@ -957,7 +966,11 @@ class Connection(ConnectionBase):

         ssh_executable = self._play_context.ssh_executable

-        if not in_data and sudoable:

+        # -tt can cause various issues in some environments so allow the user

+        # to disable it as a troubleshooting method.

+        use_tty = self.get_option('use_tty')

+

+        if not in_data and sudoable and use_tty:

             args = (ssh_executable, '-tt', self.host, cmd)

         else:

             args = (ssh_executable, self.host, cmd)

@@ -80,6 +80,8 @@ class TestConnectionBaseClass(unittest.TestCase):

         conn._build_command.return_value = 'ssh something something'

         conn._run = MagicMock()

         conn._run.return_value = (0, 'stdout', 'stderr')

+        conn.get_option = MagicMock()

+        conn.get_option.return_value = True

         res, stdout, stderr = conn.exec_command('ssh')

         res, stdout, stderr = conn.exec_command('ssh', 'this is some data')

@@ -538,6 +540,8 @@ class TestSSHConnectionRetries(object):

         self.conn._build_command = MagicMock()

         self.conn._build_command.return_value = 'ssh'

+        self.conn.get_option = MagicMock()

+        self.conn.get_option.return_value = True

         return_code, b_stdout, b_stderr = self.conn.exec_command('ssh', 'some data')

         assert return_code == 0

@@ -563,6 +567,8 @@ class TestSSHConnectionRetries(object):

         self.conn._build_command = MagicMock()

         self.conn._build_command.return_value = 'ssh'

+        self.conn.get_option = MagicMock()

+        self.conn.get_option.return_value = True

         pytest.raises(AnsibleConnectionFailure, self.conn.exec_command, 'ssh', 'some data')

         assert self.mock_popen.call_count == 10

@@ -575,6 +581,8 @@ class TestSSHConnectionRetries(object):

         self.conn._build_command = MagicMock()

         self.conn._build_command.return_value = 'ssh'

+        self.conn.get_option = MagicMock()

+        self.conn.get_option.return_value = True

         self.mock_popen.side_effect = [Exception('bad')] * 10

         pytest.raises(Exception, self.conn.exec_command, 'ssh', 'some data')