In this code provided with the blog, we will demonstrate how to use the draining state to update the AMI used by EC2 instances in your cluster by updating the launch configuration of your auto-scaling group. The process also ensures that the EC2 instances get the tasks drained the tasks launch on new container instance before termination occurs.
Parameter validation failed: Invalid type for parameter cluster, value: None, type: <type 'NoneType'>, valid types: <type 'basestring'>: ParamValidationError Traceback (most recent call last): File "/var/task/index.py", line 141, in lambda_handler clusterListResp = ecsClient.list_container_instances(cluster=clusterName) File "/var/task/botocore/client.py", line 253, in _api_call return self._make_api_call(operation_name, kwargs) File "/var/task/botocore/client.py", line 517, in _make_api_call api_params, operation_model, context=request_context) File "/var/task/botocore/client.py", line 572, in _convert_to_request_dict api_params, operation_model) File "/var/task/botocore/validate.py", line 270, in serialize_to_request raise ParamValidationError(report=report.generate_report()) ParamValidationError: Parameter validation failed: Invalid type for parameter cluster, value: None, type: <type 'NoneType'>, valid types: <type 'basestring'>