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Roadmap

  • Be able to test transforms (include)
  • Add tests around common resource types
    • AutoScaling
    • Ec2 Instances
    • Load Balancers
    • RDS
  • Create a framework to test ARNs
  • Test Ref resources to IAM Roles have good assume role documents. Example: Lambda Function Ref refers to an IAM Role that can be assume by Lambda.
  • More Warnings around hard coded values (Regions, AccountIds) to help with the practice of reusability

0.17.0

Features
  • Add new rule E3026 to validate Redis cluster settings including AutomaticFailoverEnabled and NumCacheClusters. Status: Released
  • Add new rule W3037 to validate IAM resource policies. Status: Experimental
  • Add new parameter -e/--include-experimental to allow for new rules in that aren't ready to be fully released
CloudFormation Specifications
  • Update Spec files to 2.28.0
  • Add all the allowed values of the AWS::Redshift::* Resources
  • Add all the allowed values of the AWS::Neptune::* Resources
  • Patch spec to make AWS::CloudFront::Distribution.LambdaFunctionAssociation.LambdaFunctionARN required
  • Patch spec to make AWS::DynamoDB::Table AttributeDefinitions required
Fixes
  • Remove extra blank lines when there is no errors in the output
  • Add exception to rule E1029 to have exceptions for EMR CloudWatchAlarmDefinition
  • Update rule E1029 to allow for literals in a Sub
  • Remove sub checks from rule E3031 as it won't match in all cases of an allowed pattern regex check
  • Correct typos for errors in rule W1001
  • Switch from parsing a template as Yaml to Json when finding an escape character
  • Fix an issue with SAM related to transforming templates with Serverless Application and Lambda Layers
  • Fix an issue with rule E2541 when non strings were used for Stage Names

0.16.0

Features
  • Add rule E3031 to look for regex patterns based on the patched spec file
  • Remove regex checks from rule E2509
  • Add parameter ignore-templates to allow the ignoring of templates when doing bulk linting
CloudFormation Specifications
  • Update Spec files to 2.26.0
  • Add all the allowed values of the AWS::DirectoryService::* Resources
  • Add all the allowed values of the AWS::DynamoDB::* Resources
  • Added AWS::Route53Resolver resources to the Spec Patches of ap-southeast-2
  • Patch the spec file with regex patterns
  • Add all the allowed values of the AWS::DocDb::* Resources
Fixes
  • Update rule E2504 to have '20000' as the max value
  • Update rule E1016 to not allow ImportValue inside of Conditions
  • Update rule E2508 to check conditions when providing limit checks on managed policies
  • Convert unicode to strings when in Py 3.4/3.5 and updating specs
  • Convert from awslabs to aws-cloudformation organization
  • Remove suppression of logging that was removed from samtranslator >1.7.0 and incompatibility with samtranslator 1.10.0

0.15.0

Features
  • Add scaffolding for arbitrary Match attributes, adding attributes for Type checks
  • Add rule E3024 to validate that ProvisionedThroughput is not specified with BillingMode PAY_PER_REQUEST
CloudFormation Specifications
  • Update Spec files to 2.24.0
  • Update OnlyOne spec to have BlockDeviceMapping to include NoDevice with Ebs and VirtualName
  • Add all the allowed values of the AWS::CloudFront::* Resources
  • Add all the allowed values of the AWS::DAX::* Resources
Fixes
  • Update config parsing to use the builtin Yaml decoder
  • Add condition support for Inclusive E2521, Exclusive E2520, and AtLeastOne E2522 rules
  • Update rule E1029 to better check Resource strings inside IAM Policies
  • Improve the line/column information of a Match with array support

0.14.1

CloudFormation Specifications
  • Update CloudFormation Specs to version 2.23.0
  • Add allowed values for AWS::Config::* resources
  • Add allowed values for AWS::ServiceDiscovery::* resources
  • Fix allowed values for Apache MQ
Fixes
  • Update rule E3008 to not error when using a list from a custom resource
  • Support simple types in the CloudFormation spec
  • Add tests for the formatters

0.14.0

Features
  • Add rule E3035 to check the values of DeletionPolicy
  • Add rule E3036 to check the values of UpdateReplacePolicy
  • Add rule E2014 to check that there are no REFs in the Parameter section
  • Update rule E2503 to support TLS on NLBs
CloudFormation Specifications
  • Update CloudFormation spec to version 2.22.0
  • Add allowed values for AWS::Cognito::* resources
Fixes
  • Update rule E3002 to allow GetAtts to Custom Resources under a Condition

0.13.2

Features
  • Introducing the cfn-lint logo!
  • Update SAM dependency version
Fixes
  • Fix CloudWatchAlarmComparisonOperator allowed values.
  • Fix typo resoruce_type_spec in several files
  • Better support for nested And, Or, and Not when processing Conditions

0.13.1

CloudFormation Specifications
  • Add allowed values for AWS::CloudTrail::Trail resources
  • Patch spec to have AWS::CodePipeline::CustomActionType Version included
Fixes
  • Fix conditions logic to use AllowedValues when REFing a Parameter that has AllowedValues specified

0.13.0

Features
  • New rule W1011 to check if a FindInMap is using the correct map name and keys
  • New rule W1001 to check if a Ref/GetAtt to a resource that exists when Conditions are used
  • Removed logic in E1011 and moved it to W1011 for validating keys
  • Add property relationships for AWS::ApplicationAutoScaling::ScalingPolicy into Inclusive, Exclusive, and AtLeastOne
  • Update rule E2505 to check the netmask bit
  • Include the ability to update the CloudFormation Specs using the Pricing API
CloudFormation Specifications
  • Update to version 2.21.0
  • Add allowed values for AWS::Budgets::Budget
  • Add allowed values for AWS::CertificateManager resources
  • Add allowed values for AWS::CodePipeline resources
  • Add allowed values for AWS::CodeCommit resources
  • Add allowed values for EC2 InstanceTypes from pricing API
  • Add allowed values for RedShift InstanceTypes from pricing API
  • Add allowed values for MQ InstanceTypes from pricing API
  • Add allowed values for RDS InstanceTypes from pricing API
Fixes
  • Fixed README indentation issue with .pre-commit-config.yaml
  • Fixed rule E2541 to allow for multiple inputs/outputs in a CodeBuild task
  • Fixed rule E3020 to allow for a period or no period at the end of a ACM registration record
  • Update rule E3001 to support UpdateReplacePolicy
  • Fix a cli issue where --template wouldn't be used when a .cfnlintrc was in the same folder
  • Update rule E3002 and E1024 to support packaging of AWS::Lambda::LayerVersion content

0.12.1

CloudFormation Specifications
  • Add AWS::WorkSpaces::Workspace.WorkspaceProperties ComputeTypeName, RunningMode allowed values
  • Fix AWS::CloudWatch::Alarm to point Metrics at AWS::CloudWatch::Alarm.MetricDataQuery
Fixes
  • Update rule E1024 to support Fn::Sub inside Fn::Cidr

0.12.0

Features
  • Update rule E1019 to not allow for lists directly when doing a Ref or GetAtt to a list
  • Move parameter checks from rule E3030 to a new rule W2030
CloudFormation Specifications
  • Updated to version 2.19.0
  • Add S3 Bucket Allowed Values
  • Add Route53 Allowed Values
  • Add CodeDeploy Allowed Values
  • Add AWS::SecretsManager::SecretTargetAttachment TargetType Allowed Values
  • Add AWS::SES::ReceiptRule.Rule TlsPolicy Allowed Values
  • Add AWS::AutoScaling::AutoScalingGroup, AWS::Route53::RecordSetGroup, and AWS::AutoScaling::AutoScalingGroup to OnlyOne
Fixes
  • Improve W7001 error message

0.11.1

CloudFormation Specifications
  • Support Ref to IAM::Role or IAM::InstanceProfile with values looking for an ARN
  • AWS::Batch::ComputeEnvironment InstanceRole is an InstanceProfile not Role
Fixes
  • Add debug options to print a stack trace for rule E0002
  • Update rule E2015 to include a try/catch around AllowedPattern testing to catch errors caused by non Python supported regex

0.11.0

Features
  • Add rule E3030 to use the newly patched spec to check resource properties values. Update the following rules replaced by E3030.
    • Delete rule W2512
    • Delete rule E2531
    • Move allowed values check in rule E2505
  • Add rule E3008 to use the newly patched spec to check a resource properties Ref and GetAtt. Update the following rules replaced by E3008.
  • Improve rule E3020 to check MX records
CloudFormation Specifications
  • Update CloudFormation specs to 2.18.1
  • Append the CloudFormation spec to include:
    • AllowedValues for resource properties
    • Allowed Ref/GetAtts for resource properties
  • Add specs for regions eu-north-1, us-gov-east-1, us-gov-west-1
  • Add AWS::StepFunctions::StateMachine in all supported regions
  • Add AWS::CloudWatch::Alarm.Metric, AWS::CloudWatch::Alarm.MetricDataQuery and AWS::CloudWatch::Alarm.MetricStat in all supported regions
  • Add AWS::Lambda::LayerVersion, AWS::Lambda::LayerVersion.Content, and AWS::Lambda::LayerVersionPermission in all supported regions
Fixes
  • Fix description on rule W2501 to be more informative
  • Update rule E2532 to allow Parameters in a Task in a Step Function
  • Fix rule E1010 to allow Refs in the GetAtt attribute section
  • Add AWS::CloudFormation::Init as an exception for rule E1029
  • Add Informational error messages to JSON outputs
  • Fix file searching **/* to recursively search in Python 3.5 and greater
  • Update CopyRight from 2018 to 2019

0.10.2

Features
  • Code coverage testing integrated into the CI process
  • Update CloudFormation specs to 2.18.0
Fixes
  • Fix rule E2505 to allow for SSM parameters when checking Cidr and Tenancy parameters
  • Fix rule E1029 to not error on API Gateway stageVariables

0.10.1

Features
  • Support stdin for reading and testing templates
Fixes
  • Remove dependency on regex package as it requires gcc
  • Remove rule E3507 because it depends on regex package

0.10.0

Features
  • Update specs to version 2.16.0
Fixes
  • Require pathlib2 in Python versions earlier than 3.4.0
  • Update aws-sam-translator to v1.8.0
  • Update requests dependency to be at least version 2.15.0
  • Add Python 3.7 support for Lambda
  • Provide valid Python runtimes in rule E2531 error message
  • Allow Fn::Sub inside a Fn::Sub for rule E1019
  • Add hardcoded list check as invalid in rule E6003
  • Fix home expansion with when looking for .cfnlintrc in Python 3.4
  • Add testing in Travis for Py34, Py35, Py37
  • Prevent spaces after the comma in spec file
  • Update allowed Lambda Runtimes to include provided and ruby

0.9.2

Features
  • Update specs to version 2.15.0
Fixes
  • Fix rule E3020 to allow multiple text records of up to 255 characters
  • Fix rule E3016 to handle conditions in Update Policies
  • Fix rule E2532 to not fail when using a Fn::Sub and a number for a param

0.9.1

Features
  • Add support for eu-west-3 and ap-northeast-3
  • Add Resource Type AWS::CloudFormation::Macro to CloudFormation Spec
Fixes
  • Fix the error message for YAML null being off by 1 line and 1 column number
  • Add Custom Error for when trying to access an attribute in the classes that make up the template
  • Fix an issue with deepcopy not creating copies with start and end marks
  • Fix 4 rules that would fail when trying to create the path of the error and running into an integer
  • Fix rule E2015 to force parameter default values to be a string when testing against the AllowedPattern regex pattern
  • Fix a bug in the config engine in which append rules would have gone to override spec
  • Remove exit calls from functions that are used in integrations preventing pre-mature failures
  • Fix rule E3002 E3003 to support functions that may be able to support objects

0.9.0

Features
  • Add rule E8002 to validate if resource Conditions or Fn::If conditions are defined
  • Improve rule E3002 to validate custom resources when custom specs are addended to the resource spec using override-spec
  • Allow for configuration of cfn-lint using configuration files in the project and home folder called .cfnlintrc
  • Updated specs to versions release 2.12.0
Fixes
  • Fix rule E3002 to not fail when looking for lists of objects and using a FindInMap or GetAtt to a custom resource as both could suppliy a list of objects
  • Remove rule E1025 which was duplicative to the more extensive rule E8002
  • Fix rule E3020 to allow for quotes when checking the length
  • Add generic exception handling to SAM transforming functions
  • Complete redo how we handle arguments to fix issues created when linting multiple files with cfn-lint configurations in the file
  • New CloudFormation spec patch to not require CidrBlock on resource type AWS::EC2::NetworkAclEntry
  • New updates to AtLeastOne.json definition to require CidrBlock or Ipv6CidrBlock on resource type AWS::EC2::NetworkAclEntry
  • A few documentation improvements

0.8.3

Features
  • Add rule E3022 to validate that there is only one SubnetRouteTableAssociation per subnet
Fixes
  • Fix rule E2502 to check Arn and Name for AWS::EC2::LaunchTemplate resources
  • Fix rule E3016 to remove use of Path which may not be defined in certain scenarios
  • Fix base rule Class so that resource_property_types and resource_sub_property_types is initialized from on every new rule and not copied from previous rules that were initialized
  • Fix conversions of transformed templates in which keys stayed as str(s) instead of str_node(s)

0.8.2

Fixes
  • Update rule E2502 to allow GetAtt against a nested stack or custom resource
  • Update rules E2541 and E2540 to support conditions inside the CodePipeline
  • Fix types in rule E2532 to now include InputPath and OutputPath
  • Update rule E1029 to skip missing sub when looking at parameters in IAM policies
  • Update rule E2507 to allow for strings in the IAM policy
  • Update rule E2507 to allow the policy statement to be an object along with a list

0.8.1

Features
  • Update Specs to the versions released October 19th, 2018
Fixes
  • Fix rule E2541 to not fail on non-string values

0.8.0

Features
  • Created a process to patch the CloudFormation Spec and patched a bunch of issues
  • Support pre-commit hooks for linting templates
  • Add rule E3021 to that 5 or less targets are added to a CloudWatch Event
  • Add rule E1029 to look for Sub variables that aren't inside a Sub
  • Add rule I3011 to validate that DynamDB Tables have deletion policy specified as the default is to delete the database.
  • Add support for info errors
Fixes
  • Update search_deep_keys to look for items in the Global section which is lost in a Transformation
  • Clean up failures when loading files that are not yaml or json

0.7.4

Features
  • Support parsing multiple files from the command line
  • New rule E3016 to validate a resources UpdatePolicy configuration
Fixes
  • Removes sub parameter check from rule E1012. The same check is covered by E1019
  • Fix rule E1010 when using a string not an array with Fn::Sub
  • Fix rule E3020 ignore intrinsic functions when checking values

0.7.3

Features
  • Update the custom objects for the template to directly allow the calling of getting items and checking items that is condition safe
  • Update CloudFormation Specs to 2018-09-21 released specs
Fixes
  • Fix rule E2540 to not fail when the stage names aren't strings
  • Fix rule E3002 to not fail when processing Ref AWS::NoValue
  • Core functionality updated to fail when extending rules directory doesn't exist
  • Fix rule E3002 metadata isn't supported as a resource property
  • Fix rule E2509 to not error when using a function for description

0.7.2

Fixes
  • Fix rule W2501 to support dashes in KMS Key name
  • Fix rule E2543 to not fail when the type of a step isn't known
  • Fix rule E2507 to have an exception for ECR Policies. Resource isn't required.
  • Several Python cleanup items around initializing lists, how version is loaded, and dropping 'discover' in testing

0.7.1

Fixes
  • Fix core decoding so the true error of a template parsing issue is visible to the user

0.7.0

Features
  • New Rule W1019 to make sure any Sub variables are used in the string
  • New Rule E2532 to start basic validation of state machine syntax
  • New Rule W1020 to see if Sub is needed and variables are being used
  • New Rule E1028 validate that first element in a Fn::If array is a string
  • New Rule W3002 to warn when templated templates are used
  • Update Rule E2507 to check resource base policies
  • Add Rule W2511 to warn when using an older version of IAM Policy Version
Fixes
  • Update Rule E3002 to allow for templated code
  • Update Rule E1024 to allow Cidr function to use GetAtt
  • Fix core functionality to not error if the template is an array or string instead of an object

0.6.1

Fixes
  • Fixes an issue where Template.get_values would return Ref: AWS::NoValue. This will no longer be returned as it is considered to be a Null value.

0.6.0

Features
  • Update formatters to be similar from JSON and text outputs and modularize for easier growth later
  • Don't raise an error with E3020 when doing ACM DNS validation registration
  • Add rule E7003 to validate that mapping keys are strings.
  • Add rule E1027 to validate that dynamic reference secure strings are to supported properties
  • Add rule E1004 to validate that the Template Description is only a string
  • Add rule E6005 to validate that an Output Description is only a string
  • Add rule E6012 to validate that an Output Description is less than the maximum length
Fixes
  • Fix core libraries to handle conditions around resource properties so that the resource and property checks still run
  • Fix core libraries to handle the special property type Tag so that its checked when a rule is doing a Property Check

0.5.2

Fixes
  • Support additional attributes in spec file for E3002
  • Check custom resources as if they are 'AWS::CloudFormation::CustomResource' in rule E3003
  • Fix W6001 when an ImportValue is used to another function
  • Fix W2501 to support the new dynamic reference feature

0.5.1

Features
  • Update rule E3020 to support CAA and CNAME record checks
  • Update specs to ones released on August 16, 2018

0.5.0

Features
  • Load all instances of CloudFormationLintRule in a file. Class doesn't need to match the filename anymore
  • Allow load yaml to accept a string allowing people to use cfn-lint as a module
  • Add rule W6001 to test outputs that are just using an import value
  • Update specs to ones released on August 10, 2018
Fixes
  • Update E2507 to support conditions and using get_values to test all condition paths
  • Update E2521, E2523 to support conditions and using get_values to test all condition paths
  • Rewrite E2503 to support intrinsic functions and conditions and lower case protocols
  • Fix E1018 to support Sub inside a Split function
  • Fix E3003 description messages to be more informative
  • Fix E3001 to not require parameters when CreationPolicy is used
  • Fix SAM region when no region is available from a local AWS profile or environment variable.

0.4.2

Features
  • Update rule E3020 to support AAAA record checks
Fixes
  • Fix many rules that would fail if a sub parameter had a space at the beginning or end
  • Fix crashing issues when trying to get resources that aren't properly configured

0.4.1

Features
  • Update CloudFormation Specs to July 20th, 2018
Fixes
  • Fix an issue with Exclusive resource properties and RDS with Snapshot and Password

0.4.0

Features
  • Update CloudFormation specs to July 16th, 2018
  • Support comma lists for regions, append rules, and ignore check parameters
  • Added documentation explaining Resource Specification based rules
Fixes
  • Fix a bunch of typos across many different rules
  • Support DeepCopy with Template and custom String classes used for marking up templates
  • Fix Rule E3002 to support CommaDelimitedList when looking for List Parameters
  • Fix core engine to check that something is a Dict instead of assuming it is

0.3.5

Features
  • Update CloudFormation Specs to July 12th, 2018
  • Rule E7012 added to check the limits of attributes in a Mapping
  • Rule E2012 added to check maximum size of a parameter value
  • Rule E1003 added to check the maximum length of the template Description
  • Guide created to help new users write new rules
Fixes
  • Catch KeyError when trying to discover the line and column number of an error
  • Update Lambda rules to support dotnet core
  • Fix rule E1017 so we unpack first element of select as a dict
  • Fix rule E1024 to support ImportValue and appropriately checking number for the last element

0.3.3

Features
  • Support for Yaml C Parser when available.
  • Catch rule processing errors and raise a lint error in their place.
  • Add rules for the limit on Parameter, Mapping, Resource and Output names
  • Add Rule W3005 to warn for when DependsOn is specified but not needed
  • Add Rule E2509 to check if Security Group Descriptions are properly configured
  • Add source_url to rules so rule reference documentation can be provided
Fixes
  • Fixed issues when Conditions had lists for values
  • Fixed issue where underscore was allowed for AlphaNumeric names

0.3.2

Features
  • Try/Catch added to rule processing so code failures in rules won't crash cfn-lint
  • Parse YAML files using C parser when available. Greatly speeds up YAML parsing.
Fixes
  • Template class updated to handle conditions where lists are in the true/false values
  • Fix regex for checking Resource, Output, etc. names to not include underscore

0.3.1

Features
  • Update rule E3020 to validate A recordsets
Fixes
  • Require "aws-sam-translator" dependency be at least 1.6.0
  • Add support for wildcards in rule E3013 - Support conditions in Lists for rule E3002 - Include filename when we run into Null and Duplicate values when parsing yaml
  • Rule W2510 now allows for AllowedValues instead of just Min/MaxValue for compliance of Lambda MemorySize
  • Rule E2530 updated to checked AllowedValues for compliance of Lambda MemorySize

0.3.0

Features
  • Serverless Transforms now handled by SAM libraries
  • Add Rule E2508: Add checks for IAM
    • Managed Policies attached to IAM user, group or role can't be more than 10
    • An IAM user can be a member of no more than 10 groups
    • There can only be 1 role in an instance profile
    • AssumeRolePolicyDocument size is less than <2048 characters
  • Add Rule E1002: Check overall template size to make sure its below
  • Add Rule E3013: CloudFront aliases should contain valid domain names
  • Add Rule E3020: Check if all RecordSets are correctly configured
    • Strings end and start with double quotes
    • Size is less than 256 characters
    • Record Types are within the specification
  • Short hand parameter switches and no longer need --template
Fixes
  • Don't report a Condition not being used if it is used by another Condition

0.2.2

Fixes
  • Fixed issues with Yaml and Json parsing for complex strings in Python 2.7
  • Added eu-central-1 Availability Zones to acceptable AZ list
  • Added nodejs8.10 to supported Lambda
  • Added Version as an attribute for a Custom Resource
  • Parseable output is now colon(:) delimited

0.2.1

Features
  • Added AllowedValues for Cidr parameter checking Rule W2509
  • Add Rule E2004 to check Allowed values for Cidr parameters are a valid Cidr range
  • Disable mapping Name checks W7001 if dynamic mapping names are used (Ref, FindInMap)
  • New Rule E1026 to make sure Ref's in 'Conditions' are to parameters and not resources
  • Updated CloudFormation specs to June 5th, 2018
Fixes
  • Fixed an issue with Rule E1019 not giving errors when there was a bad pseudo parameter
  • Fixed an issue where conditions with Refs were validated as strings instead of Refs
  • Fix crash errors when an empty yaml file is provided
  • Updated condition functions to return the full object (Ref isn't translated while looking for AWS::NoValue)
  • Support Map Type properties when doing PrimitiveType check E3012 - Fix an issue when boolean values not being checked when using check_value

0.2.0

Features
  • Standard cfn-lint Errors (E0000) for null, duplicate, and parse errors
  • Add a new check for CloudFormation limits
  • Add a new check for Parameter, Resource, Output, and Mapping names
  • Update specs to those released on May 25th, 2018
  • Strong type checking for property values result in Errors (E3012)
Fixes
  • Transform logic updated to not add a Role if one is specified for a serverless function
  • Fixed logic around Fn::If when the result is an object
  • Fix conditions when checking property value structure

0.1.0

Features
  • Update CloudFormation specs to include recent releases
  • Add checks for duplicate resource names
  • Add checks for null values in templates
  • Add support in Circular Dependency checks to go multiple levels deep
  • Add check for unused mappings
  • Add check for unused and not found conditions
  • Convert Errors to Warnings that don't cause a failure when implementing a template
Fixes
  • Fix check for cfn-lint configurations in templates
  • Fix Sub Functions checks failing on sub stacks or custom resources
  • Fix Serverless Transforms not failing when trying to create multiple RestApiIds
  • Fix TOX encoding issues with certain JSON files
  • Update Lambda Memory size to 3008
  • Fix FindInMap failing when the first parameter is also FindInMap
  • Fix key search function to appropriately respond to nested finds (FindInMap inside a FindInMap)

0.0.10

Features
  • Capability to merge and modify the CloudFormation spec with provided JSON
    • Allows for changing what properties are required
    • Can change what resource types are allowed
  • Remove warnings that were in error checks to keep errors focused on issues preventing success
  • Improve circular dependency checks to go multiple levels deep
  • Check null and duplicate values in JSON and YAML templates
Fixes
  • Some primitive type properties were not getting checked
  • Include support for Long as a number based check
  • Improve get condition values to support more complex scenarios

0.0.8

Features
  • Added a rule to check for only one resource property in a set
  • Added a rule for more than one of resource properties in a set
  • Added a rule for mutually exclusive resource properties
Fixes
  • Support parsing JSON files that have tabs
  • Better error handling for when a property is a list instead of an object
  • Error handling for when files can't be read or don't exist

0.0.7

Features
  • Fix for supporting more parameter types when checking REFs to parameters for Security Groups

0.0.6

Features
  • Exit code non zero on errors or warnings

0.0.5

Features
  • Testing CloudFormation resources against the Resource Spec
  • Test Functions against supported included functions
  • Test overall CloudFormation structure
  • Test Regionalization of a template against the Resource Spec
  • Ability to add additional rules on parameter
  • In depth checks of values around AWS::EC2::VPC, AWS::EC2::Subnet, and AWS::EC2::SecurityGroup