SQS event creating when it should be updating

lmuther8 commented 3 months ago

Context

The function status on line 354 of utilities.py does not properly handle the AccessDeniedException from AWS.

def status(self, function):
    response = None
    LOG.debug("getting status for event source %s", self.arn)
    uuid = self._get_uuid(function)
    if uuid:
        try:
            response = self._lambda.call("get_event_source_mapping", UUID=self._get_uuid(function))
            LOG.debug(response)
        except botocore.exceptions.ClientError:
            LOG.debug("event source %s does not exist", self.arn)
            response = None
    else:
        LOG.debug("No UUID for event source %s", self.arn)
    return response

If the user does not have permissions to use lambda:GetEventSourceMapping API call then this still says the event source does not exist.

Expected Behavior

The zappa update {{stage}} command should fail and alert the user their permissions are not enough.

Actual Behavior

The program thinks the event source does not exist, tries to create one with the same UUID and then this error is caused:

botocore.errorfactory.ResourceConflictException: An error occurred (ResourceConflictException) when calling the CreateEventSourceMapping operation: An event source mapping with SQS arn (" arn:aws:sqs:us-west-2:<account>:<sqs_name> ") and function (" <function_name> ") already exists. Please update or delete the existing mapping with UUID <uuid>

Steps to Reproduce

Successfully deploy an app with a SQS event source.

Create a user or role with the following AWS permissions:

{
"Version": "2012-10-17",
"Statement": [
    {
        "Sid": "VisualEditor0",
        "Effect": "Allow",
        "Action": [
            "lambda:ListEventSourceMappings",
            "lambda:CreateEventSourceMapping"
        ],
        "Resource": "*"
    },
    {
        "Sid": "VisualEditor1",
        "Effect": "Allow",
        "Action": [
            "iam:GetRole",
            "lambda:UpdateFunctionCode",
            "s3:PutObject",
            "s3:GetObject",
            "iam:PassRole",
            "lambda:GetFunction",
            "lambda:UpdateFunctionConfiguration",
            "lambda:GetFunctionConfiguration",
            "lambda:GetAlias",
            "lambda:GetPolicy",
            "lambda:PutFunctionConcurrency"
        ],
        "Resource": [
            "arn:aws:iam::187760472520:role/*",
            "arn:aws:lambda:*:187760472520:event-source-mapping:*",
            "arn:aws:lambda:*:187760472520:function:*",
            "arn:aws:s3:::*/*"
        ]
    },
    {
        "Sid": "VisualEditor2",
        "Effect": "Allow",
        "Action": "s3:ListBucket",
        "Resource": "arn:aws:s3:::*"
    }
]
}

Your Environment

Zappa version used: 0.58.0
Operating System and Python version: MacOS Python 3.11

github-actions[bot] commented 3 weeks ago

Hi there! Unfortunately, this Issue has not seen any activity for at least 90 days. If the Issue is still relevant to the latest version of Zappa, please comment within the next 10 days if you wish to keep it open. Otherwise, it will be automatically closed.

lmuther8 commented 1 week ago

This issue still exists

zappa / Zappa