#3338 Add remote workflow 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 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