#3338 Add remote workflow version execution support to pyflyte run Pull request opened by CtfChan ## Tracking issue N/A ## Why are the changes needed? Currently, the

pyflyte run

command supports executing remote tasks (

remote-task

) and remote launch plans (

remote-launchplan

), but lacks support for executing exact version of remote workflows directly. This creates an inconsistent user experience and limits flexibility when users want to execute workflows that are already registered in a Flyte backend. ## What changes were proposed in this pull request? This PR adds support for executing remote workflows via the

pyflyte run remote-workflow

command, bringing feature parity with the existing remote task and launch plan execution capabilities. Changes include: 1. Added

WORKFLOW_LAUNCHER

constant to

DynamicEntityLaunchCommand

class 2. Updated

_fetch_entity()

method to handle the workflow launcher type by calling

fetch_workflow()

on the remote instance 3. Added support for version-specific workflow execution using the

name:version

syntax 4. Updated

get_command()

in

RemoteEntityGroup

to create a

DynamicEntityLaunchCommand

with the workflow launcher when the command is

remote-workflow

5. Added comprehensive unit tests (

test_remote_workflow

and

test_remote_workflow_with_version

) to verify the functionality ## How was this patch tested? Added two new unit tests in `tests/flytekit/unit/cli/pyflyte/test_run.py`: 1.

test_remote_workflow

: Tests basic remote workflow execution with parameters 2.

test_remote_workflow_with_version

: Tests version-specific workflow execution using the

name:version

syntax Both tests: • Mock

FlyteRemote

and

run_remote

to verify correct behavior • Use the

CliRunner

to simulate command-line execution • Verify that

fetch_workflow()

is called with the correct arguments • Ensure the workflow executes successfully with provided inputs All tests pass successfully:

pytest tests/flytekit/unit/cli/pyflyte/test_run.py::test_remote_workflow tests/flytekit/unit/cli/pyflyte/test_run.py::test_remote_workflow_with_version -v

### Setup process N/A ### Screenshots N/A ## Check all the applicable boxes • I updated the documentation accordingly. • All new and existing tests passed. • All commits are signed-off. ## Related PRs N/A ## Docs link N/A https://bito.ai#summarystart| ### Summary by Bito This pull request enhances the pyflyte run command by enabling the execution of remote workflows, introducing a WORKFLOW_LAUNCHER constant, and modifying the _fetch_entity method for workflow compatibility. It also supports version-specific workflows and includes comprehensive unit tests for reliability. flyteorg/flytekit