Alibaba Cloud Operations MCP Server

Instructions

Args:
    region: 区域ID，如cn-beijing
    instance_ids: ECS实例ID列表

Implementation Reference

• complete_fastmcp_server.py:353-375 (handler)

  Primary handler for 'stop_ecs_instances' tool. Registered via @app.tool(). Dynamically locates and calls the OOS_StopInstances function from oos_tools by matching keywords in function name.

  @app.tool()
  def stop_ecs_instances(region: str = "cn-beijing", instance_ids: List[str] = None) -> str:
      """停止ECS实例
      
      Args:
          region: 区域ID，如cn-beijing
          instance_ids: ECS实例ID列表
      """
      try:
          sys.path.insert(0, os.path.join(os.path.dirname(__file__), 'alibaba_cloud_ops_mcp_server'))
          from tools import oos_tools
          
          if not instance_ids:
              return "请提供ECS实例ID列表"
          
          for tool_func in oos_tools.tools:
              if hasattr(tool_func, '__name__') and 'stop' in tool_func.__name__.lower() and 'instance' in tool_func.__name__.lower():
                  result = tool_func(RegionId=region, InstanceIds=instance_ids)
                  return str(result)
          
          return f"ECS实例停止功能可用，region: {region}, 实例: {instance_ids}"
      except Exception as e:
          return f"ECS实例停止失败: {str(e)}"

• alibaba_cloud_ops_mcp_server/tools/oos_tools.py:94-112 (helper)

  Core helper function OOS_StopInstances invoked by the main handler. Uses Alibaba Cloud OOS to bulk stop ECS instances via execution template 'ACS-ECS-BulkyStopInstances'. Includes Pydantic Field definitions for input schema.

  @tools.append
  def OOS_StopInstances(
      InstanceIds: List[str] = Field(description='AlibabaCloud ECS instance ID List'),
      RegionId: str = Field(description='AlibabaCloud region ID', default='cn-hangzhou'),
      ForeceStop: bool = Field(description='Is forced shutdown required', default=False)
  ):
      """批量停止ECS实例，适用于需要同时管理和停止多台ECS实例的场景。"""
      
      parameters = {
          'regionId': RegionId,
          'resourceType': 'ALIYUN::ECS::Instance',
          'targets': {
              'ResourceIds': InstanceIds,
              'RegionId': RegionId,
              'Type': 'ResourceIds'
          },
          'forceStop': ForeceStop
      }
      return _start_execution_sync(region_id=RegionId, template_name='ACS-ECS-BulkyStopInstances', parameters=parameters)

• alibaba_cloud_ops_mcp_server/tools/oos_tools.py:96-98 (schema)

  Pydantic Field definitions providing input schema and descriptions for the OOS_StopInstances function parameters.

  InstanceIds: List[str] = Field(description='AlibabaCloud ECS instance ID List'),
  RegionId: str = Field(description='AlibabaCloud region ID', default='cn-hangzhou'),
  ForeceStop: bool = Field(description='Is forced shutdown required', default=False)

• alibaba_cloud_ops_mcp_server/tools/oos_tools.py:25-48 (helper)

  Shared helper function that starts an OOS execution template and polls for completion synchronously. Used by all OOS tools including stop instances.

  def _start_execution_sync(region_id: str, template_name: str, parameters: dict):
      client = create_client(region_id=region_id)
      start_execution_request = oos_20190601_models.StartExecutionRequest(
          region_id=region_id,
          template_name=template_name,
          parameters=json.dumps(parameters)
      )
      start_execution_resp = client.start_execution(start_execution_request)
      execution_id = start_execution_resp.body.execution.execution_id
  
      while True:
          list_executions_request = oos_20190601_models.ListExecutionsRequest(
              region_id=region_id,
              execution_id=execution_id
          )
          list_executions_resp = client.list_executions(list_executions_request)
          status = list_executions_resp.body.executions[0].status
          if status == FAILED:
              status_message = list_executions_resp.body.executions[0].status_message
              raise exception.OOSExecutionFailed(reason=status_message)
          elif status in END_STATUSES:
              return list_executions_resp.body
          time.sleep(1)
  @tools.append