(torchx/workspace) Support multi-project/directory workspace

Summary:
Usage:

In your `.torchxconfig` file specify multi-project workspace as follows:

```
[cli:run]
workspace =
  /home/$USER/github/myproj:
  /home/$USER/github/verl: verl
  /home/$USER/.torchxconfig: verl/.torchxconfig
```

Then the workspace is built as:

1. `/home/$USER/github/myproj/**` -> `$REMOTE_ROOT/**`
1. `/home/$USER/github/verl/**` -> `$REMOTE_ROOT/verl/**`
1. `/home/$USER/.torchxconfig` -> `$REMOTE_ROOT/verl/.torchxconfig`

Notes:

1. The mappings are basically like BUCK `python_library`'s `resoruce` attribute. Mapping to an empty string, or simply leaving the target blank (as we did for `myproj` in the example above) copies the contents of the src dir directly into the remote workspace root

1. Files can be specified as src. The target of a file can be a directory, and if so, the file will be copied into the directory. For example:

```
[cli:run]
workspace =
  /home/$USER/github/verl: verl
  /home/$USER/.torchxconfig: verl
```

copies `.torchxconfig` into `$REMOTE_ROOT/verl/.torchxconfig`. However if we switching the order of the projects won't work:

```
[cli:run]
workspace =
  /home/$USER/.torchxconfig: verl
  /home/$USER/github/verl: verl
```

This would copy `.torchxconfig` to the file called `verl` in  `$REMOTE_ROOT/verl`, then `github/verl` would fail to copy.

Differential Revision: D82169554

Author: kiuk

torchx/cli/cmd_run.py

@@ -36,6 +36,7 @@
 )
 from torchx.util.log_tee_helpers import tee_logs
 from torchx.util.types import none_throws
+from torchx.workspace import Workspace
 
 
 MISSING_COMPONENT_ERROR_MSG = (
@@ -92,7 +93,7 @@ def torchx_run_args_from_json(json_data: Dict[str, Any]) -> TorchXRunArgs:
 
     torchx_args = TorchXRunArgs(**filtered_json_data)
     if torchx_args.workspace == "":
-        torchx_args.workspace = f"file://{Path.cwd()}"
+        torchx_args.workspace = f"{Path.cwd()}"
     return torchx_args
 
 
@@ -250,7 +251,7 @@ def add_arguments(self, subparser: argparse.ArgumentParser) -> None:
         subparser.add_argument(
             "--workspace",
             "--buck-target",
-            default=f"file://{Path.cwd()}",
+            default=f"{Path.cwd()}",
             action=torchxconfig_run,
             help="local workspace to build/patch (buck-target of main binary if using buck)",
         )
@@ -289,12 +290,14 @@ def _run_inner(self, runner: Runner, args: TorchXRunArgs) -> None:
             else args.component_args
         )
         try:
+            workspace = Workspace.from_str(args.workspace) if args.workspace else None
+
             if args.dryrun:
                 dryrun_info = runner.dryrun_component(
                     args.component_name,
                     component_args,
                     args.scheduler,
-                    workspace=args.workspace,
+                    workspace=workspace,
                     cfg=args.scheduler_cfg,
                     parent_run_id=args.parent_run_id,
                 )

torchx/cli/test/cmd_run_test.py

@@ -401,7 +401,7 @@ def test_verify_no_extra_args_stdin_with_boolean_flags(self) -> None:
 
     def test_verify_no_extra_args_stdin_with_value_args(self) -> None:
         """Test that arguments with values conflict with stdin."""
-        args = self.parser.parse_args(["--stdin", "--workspace", "file:///custom/path"])
+        args = self.parser.parse_args(["--stdin", "--workspace", "/custom/path"])
         with self.assertRaises(SystemExit):
             self.cmd_run.verify_no_extra_args(args)
 
@@ -499,7 +499,7 @@ def test_torchx_run_args_from_json(self) -> None:
         self.assertEqual(result.dryrun, False)
         self.assertEqual(result.wait, False)
         self.assertEqual(result.log, False)
-        self.assertEqual(result.workspace, f"file://{Path.cwd()}")
+        self.assertEqual(result.workspace, f"{Path.cwd()}")
         self.assertEqual(result.parent_run_id, None)
         self.assertEqual(result.tee_logs, False)
         self.assertEqual(result.component_args, {})
@@ -515,7 +515,7 @@ def test_torchx_run_args_from_json(self) -> None:
             "dryrun": True,
             "wait": True,
             "log": True,
-            "workspace": "file:///custom/path",
+            "workspace": "/custom/path",
             "parent_run_id": "parent123",
             "tee_logs": True,
         }
@@ -529,7 +529,7 @@ def test_torchx_run_args_from_json(self) -> None:
         self.assertEqual(result2.dryrun, True)
         self.assertEqual(result2.wait, True)
         self.assertEqual(result2.log, True)
-        self.assertEqual(result2.workspace, "file:///custom/path")
+        self.assertEqual(result2.workspace, "/custom/path")
         self.assertEqual(result2.parent_run_id, "parent123")
         self.assertEqual(result2.tee_logs, True)
 
@@ -626,7 +626,7 @@ def test_torchx_run_args_from_argparse(self) -> None:
         args.dryrun = True
         args.wait = False
         args.log = True
-        args.workspace = "file:///custom/workspace"
+        args.workspace = "/custom/workspace"
         args.parent_run_id = "parent_123"
         args.tee_logs = False
 
@@ -654,7 +654,7 @@ def test_torchx_run_args_from_argparse(self) -> None:
         self.assertEqual(result.dryrun, True)
         self.assertEqual(result.wait, False)
         self.assertEqual(result.log, True)
-        self.assertEqual(result.workspace, "file:///custom/workspace")
+        self.assertEqual(result.workspace, "/custom/workspace")
         self.assertEqual(result.parent_run_id, "parent_123")
         self.assertEqual(result.tee_logs, False)
         self.assertEqual(result.component_args, {})

torchx/runner/api.py

@@ -54,7 +54,7 @@
 from torchx.util.session import get_session_id_or_create_new, TORCHX_INTERNAL_SESSION_ID
 
 from torchx.util.types import none_throws
-from torchx.workspace.api import WorkspaceMixin
+from torchx.workspace.api import Workspace, WorkspaceMixin
 
 if TYPE_CHECKING:
     from typing_extensions import Self
@@ -171,7 +171,7 @@ def run_component(
         component_args: Union[list[str], dict[str, Any]],
         scheduler: str,
         cfg: Optional[Mapping[str, CfgVal]] = None,
-        workspace: Optional[str] = None,
+        workspace: Optional[Union[Workspace, str]] = None,
         parent_run_id: Optional[str] = None,
     ) -> AppHandle:
         """
@@ -206,7 +206,7 @@ def run_component(
             ComponentNotFoundException: if the ``component_path`` is failed to resolve.
         """
 
-        with log_event("run_component", workspace=workspace) as ctx:
+        with log_event("run_component") as ctx:
             dryrun_info = self.dryrun_component(
                 component,
                 component_args,
@@ -217,7 +217,8 @@ def run_component(
             )
             handle = self.schedule(dryrun_info)
             app = none_throws(dryrun_info._app)
-            ctx._torchx_event.workspace = workspace
+
+            ctx._torchx_event.workspace = str(workspace)
             ctx._torchx_event.scheduler = none_throws(dryrun_info._scheduler)
             ctx._torchx_event.app_image = app.roles[0].image
             ctx._torchx_event.app_id = parse_app_handle(handle)[2]
@@ -230,7 +231,7 @@ def dryrun_component(
         component_args: Union[list[str], dict[str, Any]],
         scheduler: str,
         cfg: Optional[Mapping[str, CfgVal]] = None,
-        workspace: Optional[str] = None,
+        workspace: Optional[Union[Workspace, str]] = None,
         parent_run_id: Optional[str] = None,
     ) -> AppDryRunInfo:
         """
@@ -259,7 +260,7 @@ def run(
         app: AppDef,
         scheduler: str,
         cfg: Optional[Mapping[str, CfgVal]] = None,
-        workspace: Optional[str] = None,
+        workspace: Optional[Union[Workspace, str]] = None,
         parent_run_id: Optional[str] = None,
     ) -> AppHandle:
         """
@@ -272,9 +273,7 @@ def run(
             An application handle that is used to call other action APIs on the app.
         """
 
-        with log_event(
-            api="run", runcfg=json.dumps(cfg) if cfg else None, workspace=workspace
-        ) as ctx:
+        with log_event(api="run") as ctx:
             dryrun_info = self.dryrun(
                 app,
                 scheduler,
@@ -283,10 +282,15 @@ def run(
                 parent_run_id=parent_run_id,
             )
             handle = self.schedule(dryrun_info)
-            ctx._torchx_event.scheduler = none_throws(dryrun_info._scheduler)
-            ctx._torchx_event.app_image = none_throws(dryrun_info._app).roles[0].image
-            ctx._torchx_event.app_id = parse_app_handle(handle)[2]
-            ctx._torchx_event.app_metadata = app.metadata
+
+            event = ctx._torchx_event
+            event.scheduler = scheduler
+            event.runcfg = json.dumps(cfg) if cfg else None
+            event.workspace = str(workspace)
+            event.app_id = parse_app_handle(handle)[2]
+            event.app_image = none_throws(dryrun_info._app).roles[0].image
+            event.app_metadata = app.metadata
+
             return handle
 
     def schedule(self, dryrun_info: AppDryRunInfo) -> AppHandle:
@@ -320,21 +324,22 @@ def schedule(self, dryrun_info: AppDryRunInfo) -> AppHandle:
 
         """
         scheduler = none_throws(dryrun_info._scheduler)
-        app_image = none_throws(dryrun_info._app).roles[0].image
         cfg = dryrun_info._cfg
-        with log_event(
-            "schedule",
-            scheduler,
-            app_image=app_image,
-            runcfg=json.dumps(cfg) if cfg else None,
-        ) as ctx:
+        with log_event("schedule") as ctx:
             sched = self._scheduler(scheduler)
             app_id = sched.schedule(dryrun_info)
             app_handle = make_app_handle(scheduler, self._name, app_id)
+
             app = none_throws(dryrun_info._app)
             self._apps[app_handle] = app
-            _, _, app_id = parse_app_handle(app_handle)
-            ctx._torchx_event.app_id = app_id
+
+            event = ctx._torchx_event
+            event.scheduler = scheduler
+            event.runcfg = json.dumps(cfg) if cfg else None
+            event.app_id = app_id
+            event.app_image = none_throws(dryrun_info._app).roles[0].image
+            event.app_metadata = app.metadata
+
             return app_handle
 
     def name(self) -> str:
@@ -345,7 +350,7 @@ def dryrun(
         app: AppDef,
         scheduler: str,
         cfg: Optional[Mapping[str, CfgVal]] = None,
-        workspace: Optional[str] = None,
+        workspace: Optional[Union[Workspace, str]] = None,
         parent_run_id: Optional[str] = None,
     ) -> AppDryRunInfo:
         """
@@ -414,7 +419,7 @@ def dryrun(
             "dryrun",
             scheduler,
             runcfg=json.dumps(cfg) if cfg else None,
-            workspace=workspace,
+            workspace=str(workspace),
         ):
             sched = self._scheduler(scheduler)
             resolved_cfg = sched.run_opts().resolve(cfg)
@@ -429,7 +434,7 @@ def dryrun(
                 logger.info(
                     'To disable workspaces pass: --workspace="" from CLI or workspace=None programmatically.'
                 )
-                sched.build_workspace_and_update_role(role, workspace, resolved_cfg)
+                sched.build_workspace_and_update_role2(role, workspace, resolved_cfg)
 
                 if old_img != role.image:
                     logger.info(

torchx/runner/events/__init__.py

@@ -33,8 +33,9 @@
 
 from .api import SourceType, TorchxEvent  # noqa F401
 
-# pyre-fixme[9]: _events_logger is a global variable
-_events_logger: logging.Logger = None
+_events_logger: Optional[logging.Logger] = None
+
+log: logging.Logger = logging.getLogger(__name__)
 
 
 def _get_or_create_logger(destination: str = "null") -> logging.Logger:
@@ -51,19 +52,28 @@ def _get_or_create_logger(destination: str = "null") -> logging.Logger:
             a new logger if None provided.
     """
     global _events_logger
+
     if _events_logger:
         return _events_logger
-    logging_handler = get_logging_handler(destination)
-    logging_handler.setLevel(logging.DEBUG)
-    _events_logger = logging.getLogger(f"torchx-events-{destination}")
-    # Do not propagate message to the root logger
-    _events_logger.propagate = False
-    _events_logger.addHandler(logging_handler)
-    return _events_logger
+    else:
+        logging_handler = get_logging_handler(destination)
+        logging_handler.setLevel(logging.DEBUG)
+        _events_logger = logging.getLogger(f"torchx-events-{destination}")
+        # Do not propagate message to the root logger
+        _events_logger.propagate = False
+        _events_logger.addHandler(logging_handler)
+
+        assert _events_logger  # make type-checker happy
+        return _events_logger
 
 
 def record(event: TorchxEvent, destination: str = "null") -> None:
-    _get_or_create_logger(destination).info(event.serialize())
+    try:
+        serialized_event = event.serialize()
+    except Exception:
+        log.exception("failed to serialize event, will not record event")
+    else:
+        _get_or_create_logger(destination).info(serialized_event)
 
 
 class log_event:

torchx/runner/events/api.py

@@ -29,7 +29,7 @@ class TorchxEvent:
         scheduler: Scheduler that is used to execute request
         api: Api name
         app_id: Unique id that is set by the underlying scheduler
-        image: Image/container bundle that is used to execute request.
+        app_image: Image/container bundle that is used to execute request.
         app_metadata: metadata to the app (treatment of metadata is scheduler dependent)
         runcfg: Run config that was used to schedule app.
         source: Type of source the event is generated.

torchx/runner/test/config_test.py

@@ -27,6 +27,7 @@
 from torchx.schedulers.api import DescribeAppResponse, ListAppResponse, Stream
 from torchx.specs import AppDef, AppDryRunInfo, CfgVal, runopts
 from torchx.test.fixtures import TestWithTmpDir
+from torchx.workspace import Workspace
 
 
 class TestScheduler(Scheduler):
@@ -506,3 +507,31 @@ def test_dump_and_load_all_registered_schedulers(self) -> None:
                     opt_name in cfg,
                     f"missing {opt_name} in {sched} run opts with cfg {cfg}",
                 )
+
+    def test_get_workspace_config(self) -> None:
+        configdir = self.tmpdir
+        self.write(
+            str(configdir / ".torchxconfig"),
+            """#
+[cli:run]
+workspace =
+    /home/foo/third-party/verl: verl
+    /home/foo/bar/scripts/.torchxconfig: verl/.torchxconfig
+    /home/foo/baz:
+""",
+        )
+
+        workspace_config = get_config(
+            prefix="cli", name="run", key="workspace", dirs=[str(configdir)]
+        )
+        self.assertIsNotNone(workspace_config)
+
+        workspace = Workspace.from_str(workspace_config)
+        self.assertDictEqual(
+            {
+                "/home/foo/third-party/verl": "verl",
+                "/home/foo/bar/scripts/.torchxconfig": "verl/.torchxconfig",
+                "/home/foo/baz": "",
+            },
+            workspace.projects,
+        )