fix defaults for container opts with roles

src/ansible_runner/__main__.py

@@ -45,6 +45,7 @@
 from ansible_runner import output
 from ansible_runner import cleanup
 from ansible_runner._internal._dump_artifacts import dump_artifact
+from ansible_runner.defaults import default_process_isolation_executable
 from ansible_runner.utils import Bunch, register_for_cleanup
 from ansible_runner.utils.capacity import get_cpu_count, get_mem_in_bytes, ensure_uuid
 from ansible_runner.utils.importlib_compat import importlib_metadata
@@ -884,8 +885,8 @@ def main(sys_args=None):
                     "project_dir": vargs.get('project_dir'),
                     "artifact_dir": vargs.get('artifact_dir'),
                     "roles_path": [vargs.get('roles_path')] if vargs.get('roles_path') else None,
-                    "process_isolation": vargs.get('process_isolation'),
-                    "process_isolation_executable": vargs.get('process_isolation_executable'),
+                    "process_isolation": bool(vargs.get('process_isolation')),
+                    "process_isolation_executable": vargs.get('process_isolation_executable') or default_process_isolation_executable,
                     "process_isolation_path": vargs.get('process_isolation_path'),
                     "process_isolation_hide_paths": vargs.get('process_isolation_hide_paths'),
                     "process_isolation_show_paths": vargs.get('process_isolation_show_paths'),

test/integration/test_transmit_worker_process.py

@@ -383,6 +383,25 @@ def worker_stream(transmit_stream, tmp_path):  # pylint: disable=W0621
             return ingoing_buffer
 
 
+def test_transmit_role(tmp_path, cli, project_fixtures):
+    """When transmitting a role job via CLI, expect only 'playbook' in the job arguments.
+
+    When we 'transmit' a role through the CLI command, we expect a playbook to be generated via
+    the role_manager(), which will in turn be transmitted as an artifact. No other parameters
+    are expected to be present.
+    """
+    outgoing_buffer = tmp_path / 'buffer'
+    outgoing_buffer.touch()
+
+    transmit_dir = project_fixtures / 'debug'
+
+    r = cli(['transmit', str(transmit_dir), '--role', 'hello_world'])
+    data = json.loads(r.stdout.split('\n')[0])
+    assert 'kwargs' in data
+    assert len(data['kwargs']) == 1
+    assert 'playbook' in data['kwargs']
+
+
 def test_worker_without_delete_no_dir(tmp_path, cli, transmit_stream):  # pylint: disable=W0621
     worker_dir = tmp_path / 'for_worker'