Cfn-lint

https://github.com/aws-cloudformation/cfn-lint

• Installation: pip3 install cfn-lint

• cfn-lint --help
• cfn-lint file_with_your_stack.yml
• cfn-lint -t
• cfn-lint --version

cfn-lint your_file.yml
E0000 Null value at line 1 column 8
your_file.yml:1:8

Configuration files

• .cfnlintrc

Related commands

• terraform fmt
• Taskcat
• cfn-init

See also

• cfn-lint, cfn-lint --help
• IDE, Flutter, Xcode, PyCharm, Visual Studio Code, Cloud9 IDE, Android Studio, WebStorm, GitHub Codespaces
• AWS CloudFormation: [aws cloudformation | create-stack | list-stacks | delete-stack | update-stack | list-types | estimate-template-cost | validate-template | describe-stacks | deploy | drift detection], aws cloudformation get-template-summary, aws cloudformation describe-stack-events
• AWS CloudFormation, AWS::CloudFormation AWS CloudFormation Designer, Drift detection, AWS Cloud Development Kit (CDK), aws cloudformation, ServicesStack:, AWS CloudFormation Linter (cfn-lint), Former2, CloudCraft, Change sets, AWS CloudFormation Public Registry, CloudFormation snippets, CloudFormation templates, StackSets, Outputs:, Type:, Fn::Sub, !Ref, CloudFormation Parameters, AWS CloudFormation Templates, CloudFormation functions