feat: add workflow schedule trigger support

api/.env.example

@@ -502,6 +502,10 @@ ENABLE_CLEAN_MESSAGES=false
 ENABLE_MAIL_CLEAN_DOCUMENT_NOTIFY_TASK=false
 ENABLE_DATASETS_QUEUE_MONITOR=false
 ENABLE_CHECK_UPGRADABLE_PLUGIN_TASK=true
+ENABLE_WORKFLOW_SCHEDULE_POLLER_TASK=true
+# Interval time in minutes for polling scheduled workflows(default: 1 min)
+WORKFLOW_SCHEDULE_POLLER_INTERVAL=1
+WORKFLOW_SCHEDULE_POLLER_BATCH_SIZE=100
 
 # Position configuration
 POSITION_TOOL_PINS=

api/configs/feature/__init__.py

@@ -871,6 +871,18 @@ class CeleryScheduleTasksConfig(BaseSettings):
         description="Enable check upgradable plugin task",
         default=True,
     )
+    ENABLE_WORKFLOW_SCHEDULE_POLLER_TASK: bool = Field(
+        description="Enable workflow schedule poller task",
+        default=True,
+    )
+    WORKFLOW_SCHEDULE_POLLER_INTERVAL: int = Field(
+        description="Workflow schedule poller interval in minutes",
+        default=1,
+    )
+    WORKFLOW_SCHEDULE_POLLER_BATCH_SIZE: int = Field(
+        description="Maximum number of schedules to process in each poll batch",
+        default=100,
+    )
 
 
 class PositionConfig(BaseSettings):

api/core/workflow/nodes/node_mapping.py

@@ -20,6 +20,7 @@
 from core.workflow.nodes.template_transform import TemplateTransformNode
 from core.workflow.nodes.tool import ToolNode
 from core.workflow.nodes.trigger_plugin import TriggerPluginNode
+from core.workflow.nodes.trigger_schedule import TriggerScheduleNode
 from core.workflow.nodes.trigger_webhook import TriggerWebhookNode
 from core.workflow.nodes.variable_aggregator import VariableAggregatorNode
 from core.workflow.nodes.variable_assigner.v1 import VariableAssignerNode as VariableAssignerNodeV1
@@ -142,4 +143,8 @@
         LATEST_VERSION: TriggerPluginNode,
         "1": TriggerPluginNode,
     },
+    NodeType.TRIGGER_SCHEDULE: {
+        LATEST_VERSION: TriggerScheduleNode,
+        "1": TriggerScheduleNode,
+    },
 }

api/core/workflow/nodes/trigger_schedule/__init__.py

@@ -0,0 +1,3 @@
+from core.workflow.nodes.trigger_schedule.trigger_schedule_node import TriggerScheduleNode
+
+__all__ = ["TriggerScheduleNode"]

api/core/workflow/nodes/trigger_schedule/entities.py

@@ -0,0 +1,51 @@
+from typing import Literal, Optional, Union
+
+from pydantic import BaseModel, Field
+
+from core.workflow.nodes.base import BaseNodeData
+
+
+class TriggerScheduleNodeData(BaseNodeData):
+    """
+    Trigger Schedule Node Data
+    """
+
+    mode: str = Field(default="visual", description="Schedule mode: visual or cron")
+    frequency: Optional[str] = Field(
+        default=None, description="Frequency for visual mode: hourly, daily, weekly, monthly"
+    )
+    cron_expression: Optional[str] = Field(default=None, description="Cron expression for cron mode")
+    visual_config: Optional[dict] = Field(default=None, description="Visual configuration details")
+    timezone: str = Field(default="UTC", description="Timezone for schedule execution")
+
+
+class ScheduleConfig(BaseModel):
+    node_id: str
+    cron_expression: str
+    timezone: str = "UTC"
+
+
+class SchedulePlanUpdate(BaseModel):
+    node_id: Optional[str] = None
+    cron_expression: Optional[str] = None
+    timezone: Optional[str] = None
+
+
+class VisualConfig(BaseModel):
+    """Visual configuration for schedule trigger"""
+
+    # For hourly frequency
+    on_minute: Optional[int] = Field(default=0, ge=0, le=59, description="Minute of the hour (0-59)")
+
+    # For daily, weekly, monthly frequencies
+    time: Optional[str] = Field(default="12:00 PM", description="Time in 12-hour format (e.g., '2:30 PM')")
+
+    # For weekly frequency
+    weekdays: Optional[list[Literal["sun", "mon", "tue", "wed", "thu", "fri", "sat"]]] = Field(
+        default=None, description="List of weekdays to run on"
+    )
+
+    # For monthly frequency
+    monthly_days: Optional[list[Union[int, Literal["last"]]]] = Field(
+        default=None, description="Days of month to run on (1-31 or 'last')"
+    )

api/core/workflow/nodes/trigger_schedule/exc.py

@@ -0,0 +1,31 @@
+from core.workflow.nodes.base.exc import BaseNodeError
+
+
+class ScheduleNodeError(BaseNodeError):
+    """Base schedule node error."""
+
+    pass
+
+
+class ScheduleNotFoundError(ScheduleNodeError):
+    """Schedule not found error."""
+
+    pass
+
+
+class ScheduleConfigError(ScheduleNodeError):
+    """Schedule configuration error."""
+
+    pass
+
+
+class ScheduleExecutionError(ScheduleNodeError):
+    """Schedule execution error."""
+
+    pass
+
+
+class TenantOwnerNotFoundError(ScheduleExecutionError):
+    """Tenant owner not found error for schedule execution."""
+
+    pass

api/core/workflow/nodes/trigger_schedule/trigger_schedule_node.py

@@ -0,0 +1,62 @@
+from collections.abc import Mapping
+from datetime import UTC, datetime
+from typing import Any, Optional
+
+from core.workflow.entities.node_entities import NodeRunResult
+from core.workflow.entities.workflow_node_execution import WorkflowNodeExecutionStatus
+from core.workflow.nodes.base import BaseNode
+from core.workflow.nodes.base.entities import BaseNodeData, RetryConfig
+from core.workflow.nodes.enums import ErrorStrategy, NodeType
+from core.workflow.nodes.trigger_schedule.entities import TriggerScheduleNodeData
+
+
+class TriggerScheduleNode(BaseNode):
+    _node_type = NodeType.TRIGGER_SCHEDULE
+
+    _node_data: TriggerScheduleNodeData
+
+    def init_node_data(self, data: Mapping[str, Any]) -> None:
+        self._node_data = TriggerScheduleNodeData(**data)
+
+    def _get_error_strategy(self) -> Optional[ErrorStrategy]:
+        return self._node_data.error_strategy
+
+    def _get_retry_config(self) -> RetryConfig:
+        return self._node_data.retry_config
+
+    def _get_title(self) -> str:
+        return self._node_data.title
+
+    def _get_description(self) -> Optional[str]:
+        return self._node_data.desc
+
+    def _get_default_value_dict(self) -> dict[str, Any]:
+        return self._node_data.default_value_dict
+
+    def get_base_node_data(self) -> BaseNodeData:
+        return self._node_data
+
+    @classmethod
+    def version(cls) -> str:
+        return "1"
+
+    @classmethod
+    def get_default_config(cls, filters: Optional[dict] = None) -> dict:
+        return {
+            "type": "trigger-schedule",
+            "config": {
+                "mode": "visual",
+                "frequency": "weekly",
+                "visual_config": {"time": "11:30 AM", "on_minute": 0, "weekdays": ["sun"], "monthly_days": [1]},
+                "timezone": "UTC",
+            },
+        }
+
+    def _run(self) -> NodeRunResult:
+        current_time = datetime.now(UTC)
+        node_outputs = {"current_time": current_time.isoformat()}
+
+        return NodeRunResult(
+            status=WorkflowNodeExecutionStatus.SUCCEEDED,
+            outputs=node_outputs,
+        )

api/docker/entrypoint.sh

@@ -34,10 +34,10 @@ if [[ "${MODE}" == "worker" ]]; then
   if [[ -z "${CELERY_QUEUES}" ]]; then
     if [[ "${EDITION}" == "CLOUD" ]]; then
       # Cloud edition: separate queues for dataset and trigger tasks
-      DEFAULT_QUEUES="dataset,mail,ops_trace,app_deletion,plugin,workflow_storage,conversation,workflow_professional,workflow_team,workflow_sandbox"
+      DEFAULT_QUEUES="dataset,mail,ops_trace,app_deletion,plugin,workflow_storage,conversation,workflow_professional,workflow_team,workflow_sandbox,schedule"
     else
       # Community edition (SELF_HOSTED): dataset and workflow have separate queues
-      DEFAULT_QUEUES="dataset,mail,ops_trace,app_deletion,plugin,workflow_storage,conversation,workflow"
+      DEFAULT_QUEUES="dataset,mail,ops_trace,app_deletion,plugin,workflow_storage,conversation,workflow,schedule"
     fi
   else
     DEFAULT_QUEUES="${CELERY_QUEUES}"

api/events/event_handlers/__init__.py

@@ -4,6 +4,7 @@
 from .create_installed_app_when_app_created import handle
 from .create_site_record_when_app_created import handle
 from .delete_tool_parameters_cache_when_sync_draft_workflow import handle
+from .sync_workflow_schedule_when_app_published import handle
 from .update_app_dataset_join_when_app_model_config_updated import handle
 from .update_app_dataset_join_when_app_published_workflow_updated import handle
 from .update_app_triggers_when_app_published_workflow_updated import handle

api/events/event_handlers/sync_workflow_schedule_when_app_published.py

@@ -0,0 +1,86 @@
+import logging
+from typing import Optional, cast
+
+from sqlalchemy import select
+from sqlalchemy.orm import Session
+
+from core.workflow.nodes.trigger_schedule.entities import SchedulePlanUpdate
+from events.app_event import app_published_workflow_was_updated
+from extensions.ext_database import db
+from models import AppMode, Workflow, WorkflowSchedulePlan
+from services.schedule_service import ScheduleService
+
+logger = logging.getLogger(__name__)
+
+
+@app_published_workflow_was_updated.connect
+def handle(sender, **kwargs):
+    """
+    Handle app published workflow update event to sync workflow_schedule_plans table.
+
+    When a workflow is published, this handler will:
+    1. Extract schedule trigger nodes from the workflow graph
+    2. Compare with existing workflow_schedule_plans records
+    3. Create/update/delete schedule plans as needed
+    """
+    app = sender
+    if app.mode != AppMode.WORKFLOW.value:
+        return
+
+    published_workflow = kwargs.get("published_workflow")
+    published_workflow = cast(Workflow, published_workflow)
+
+    sync_schedule_from_workflow(tenant_id=app.tenant_id, app_id=app.id, workflow=published_workflow)
+
+
+def sync_schedule_from_workflow(tenant_id: str, app_id: str, workflow: Workflow) -> Optional[WorkflowSchedulePlan]:
+    """
+    Sync schedule plan from workflow graph configuration.
+
+    Args:
+        tenant_id: Tenant ID
+        app_id: App ID
+        workflow: Published workflow instance
+
+    Returns:
+        Updated or created WorkflowSchedulePlan, or None if no schedule node
+    """
+    with Session(db.engine) as session:
+        schedule_config = ScheduleService.extract_schedule_config(workflow)
+
+        existing_plan = session.scalar(
+            select(WorkflowSchedulePlan).where(
+                WorkflowSchedulePlan.tenant_id == tenant_id,
+                WorkflowSchedulePlan.app_id == app_id,
+            )
+        )
+
+        if not schedule_config:
+            if existing_plan:
+                logger.info("No schedule node in workflow for app %s, removing schedule plan", app_id)
+                ScheduleService.delete_schedule(session=session, schedule_id=existing_plan.id)
+                session.commit()
+            return None
+
+        if existing_plan:
+            updates = SchedulePlanUpdate(
+                node_id=schedule_config.node_id,
+                cron_expression=schedule_config.cron_expression,
+                timezone=schedule_config.timezone,
+            )
+            updated_plan = ScheduleService.update_schedule(
+                session=session,
+                schedule_id=existing_plan.id,
+                updates=updates,
+            )
+            session.commit()
+            return updated_plan
+        else:
+            new_plan = ScheduleService.create_schedule(
+                session=session,
+                tenant_id=tenant_id,
+                app_id=app_id,
+                config=schedule_config,
+            )
+            session.commit()
+            return new_plan

api/extensions/ext_celery.py

@@ -160,6 +160,12 @@ def __call__(self, *args: object, **kwargs: object) -> object:
             "task": "schedule.clean_workflow_runlogs_precise.clean_workflow_runlogs_precise",
             "schedule": crontab(minute="0", hour="2"),
         }
+    if dify_config.ENABLE_WORKFLOW_SCHEDULE_POLLER_TASK:
+        imports.append("schedule.workflow_schedule_task")
+        beat_schedule["workflow_schedule_task"] = {
+            "task": "schedule.workflow_schedule_task.poll_workflow_schedules",
+            "schedule": timedelta(minutes=dify_config.WORKFLOW_SCHEDULE_POLLER_INTERVAL),
+        }
     celery_app.conf.update(beat_schedule=beat_schedule, imports=imports)
 
     return celery_app