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Using cloudformation_update_stack and paremeters #118
Description
When trying to update a cloudformation stack, we specify the parameters we want to update and we get an error about other parameters that need to be updated.
Example of what is specified:
{"ParameterKey": "GlusterDiskSizeParameter","ParameterValue": "450"}
The following error comes when using the above parameters:
botocore.exceptions.ClientError: An error occurred (ValidationError) when calling the UpdateStack operation: Parameters: [RDSUsernameParameter, RDSPasswordParameter, ClusterIDParameter] must have values
However when we call that same function, and add each of those Parameters with "UsePreviousValue": True" we get an error indicating invalid parameters
"stderr": "st2.actions.python.ActionManager: DEBUG Calling method \"boto3.cloudformation.update_stack\" with kwargs: {'Parameters': ['{\"ParameterKey\":\"GlusterDiskSizeParameter\"', '\"ParameterValue\":\"450\"}', '{\"ParameterKey\":\"RDSUsernameParameter\"', '\"UsePreviousValue\":true}', '{\"ParameterKey\":\"RDSPasswordParameter\"', '\"UsePreviousValue\":true}', '{\"ParameterKey\":\"ClusterIDParameter\"', '\"UsePreviousValue\":true}'], 'StackName': 'Cluster96518'}\nTraceback (most recent call last):\n File \"/opt/stackstorm/st2/lib/python3.8/site-packages/python_runner/python_action_wrapper.py\", line 395, in <module>\n obj.run()\n File \"/opt/stackstorm/st2/lib/python3.8/site-packages/python_runner/python_action_wrapper.py\", line 214, in run\n output = action.run(**self._parameters)\n File \"/opt/stackstorm/packs/aws/actions/run.py\", line 36, in run\n return self.do_method(module_path, cls, aws_action, **kwargs)\n File \"/opt/stackstorm/packs/aws/actions/lib/action.py\", line 224, in do_method\n resultset = getattr(obj, action)(**kwargs)\n File \"/opt/stackstorm/virtualenvs/aws/lib/python3.8/site-packages/botocore/client.py\", line 251, in _api_call\n return self._make_api_call(operation_name, kwargs)\n File \"/opt/stackstorm/virtualenvs/aws/lib/python3.8/site-packages/botocore/client.py\", line 512, in _make_api_call\n request_dict = self._convert_to_request_dict(\n File \"/opt/stackstorm/virtualenvs/aws/lib/python3.8/site-packages/botocore/client.py\", line 565, in _convert_to_request_dict\n request_dict = self._serializer.serialize_to_request(\n File \"/opt/stackstorm/virtualenvs/aws/lib/python3.8/site-packages/botocore/validate.py\", line 270, in serialize_to_request\n raise ParamValidationError(report=report.generate_report())\nbotocore.exceptions.ParamValidationError: Parameter validation failed:\nInvalid type for parameter Parameters[0], value: {\"ParameterKey\":\"GlusterDiskSizeParameter\", type: <class 'str'>, valid types: <class 'dict'>\nInvalid type for parameter Parameters[1], value: \"ParameterValue\":\"450\"}, type: <class 'str'>, valid types: <class 'dict'>\nInvalid type for parameter Parameters[2], value: {\"ParameterKey\":\"RDSUsernameParameter\", type: <class 'str'>, valid types: <class 'dict'>\nInvalid type for parameter Parameters[3], value: \"UsePreviousValue\":true}, type: <class 'str'>, valid types: <class 'dict'>\nInvalid type for parameter Parameters[4], value: {\"ParameterKey\":\"RDSPasswordParameter\", type: <class 'str'>, valid types: <class 'dict'>\nInvalid type for parameter Parameters[5], value: \"UsePreviousValue\":true}, type: <class 'str'>, valid types: <class 'dict'>\nInvalid type for parameter Parameters[6], value: {\"ParameterKey\":\"ClusterIDParameter\", type: <class 'str'>, valid types: <class 'dict'>\nInvalid type for parameter Parameters[7], value: \"UsePreviousValue\":true}, type: <class 'str'>, valid types: <class 'dict'>\n",
We also are selecting to use the existing template as we are just updating and replacing a parameter in it. Any assistance on what we are doing wrong or how to move forward with this would be appreciated.
Activity
cwilson21 commentedon May 27, 2022
Figured this out. You have to nest
UsePreviousValueunderParameterValue