cfn-lint | A CloudFormation JSON and YAML Validator | YAML Processing library

When I try to deploy a seemingly simple CDK stack, it fails with a strange error. I don't get this same behavior when I create a different iam.ManagedPolicy in a different file, and that one has a much more complicated policy with several actions, etc. What am I doing wrong?

cfn-lint version: 0.53.0

Description of issue.

I have following setup on my Ubuntu machine

1. cfn-lint
2. cfn-python-lint via pre-commit

Case 1: If I run cfn-lint ./**/*.yml from terminal at the project root folder then there are no errors

Case 2: If I now try to git commit the code with pre-commit installed, it gives the following error "E0000 Template needs to be an object." for the parameters JSON file.

The parameter JSON looks something like this:

I have a cloud formation template where I have all the resources and details for the project.

I have the cfn-lint setup locally and it is running perfectly fine. However when I push the code changes, build fails at deployment stage due to cfn-nag stating some simple changes which could be fixed.

I'm using windows machine and I need a way to run this cfn-nag locally so that I could check this just like cfn-lint and fix them locally instead of waiting 40 minutes for build till it reaches deployment stage.

I referred several posts online, found below two helpful

https://stelligent.com/2018/03/23/validating-aws-cloudformation-templates-with-cfn_nag-and-mu/ https://github.com/stelligent/cfn_nag

What is the difference between cfn-nag and cfn-lint and why lint is not failing on what cfn-nag is complaining about?

The above links have some instructions on Ruby and Brew but I'm using Nodejs, felt lost. Please help.

I want to deploy an SQS queue from a CloudFormation template. Is there any issue with my template?

I was trying to implement a dynamodb proxy using apigateway. But when invoking it, the api is returning error,

Fri Mar 19 20:30:27 UTC 2021 : Execution failed due to configuration error: Unable to transform request

Fri Mar 19 20:30:27 UTC 2021 : Method completed with status: 500

To me it looks like the issue is not with the requestTemplates transformation(?), but what else, any idea?

Cloudformation template.

I have come across a usecase where i am seeing conflict between Shell Variables and Cloudformation Parameters.

Example:

I am writing AWS::ImageBuilder::Component

I am building a cloudformation template to run ECS cluster and ECS tasks on AWS.

Also i am using Atom Text editor with plugin Cfn-Lint.

I am facing below issue in cfn linter validation in Atom text editor as shown in image.

Sharing some code snippet

I am working on a proof of concept for deploying a conformance pack via AWS cloudformation and I am stumped by the error "Parameter values specified for a template which does not require them." The config rule I am using does require a parameter. Code is attached. I have also tested the template with cfn-lint and do not receive any feedback/errors.

My template is "simple" and below:

I've written a macro (called BucketChecker) that takes in an s3 bucket name and checks if it already exists. The fragment will return true or false accordingly.

I would like to use this macro in a Conditions section as described in this article: https://cloudnineapps.com/blogs/cloud-computing/how-to-create-dynamic-condition-expressions-in-aws-cloudformation-using-macros/.

The idea is to use this as a condition in my template like this: