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@aws-cdk/cfnspec
Advanced tools
@aws-cdk/cfnspec is an npm package that provides CloudFormation resource specifications for AWS CDK. It allows developers to work with AWS CloudFormation resources in a programmatic way, enabling the creation, modification, and validation of AWS infrastructure as code.
Loading CloudFormation Specifications
This feature allows you to load the CloudFormation resource specifications. The `spec` object contains detailed information about all the AWS resources supported by CloudFormation.
const cfnspec = require('@aws-cdk/cfnspec');
const spec = cfnspec.spec;
console.log(spec);
Accessing Resource Types
This feature allows you to access the different resource types available in the CloudFormation specification. The `ResourceTypes` object contains metadata about each resource type.
const cfnspec = require('@aws-cdk/cfnspec');
const resourceTypes = cfnspec.spec.ResourceTypes;
console.log(Object.keys(resourceTypes));
Validating Resource Properties
This feature allows you to validate the properties of a specific resource type. For example, you can retrieve and inspect the properties of an S3 bucket.
const cfnspec = require('@aws-cdk/cfnspec');
const resourceTypes = cfnspec.spec.ResourceTypes;
const s3BucketProps = resourceTypes['AWS::S3::Bucket'].Properties;
console.log(s3BucketProps);
The `aws-sdk` package is the official AWS SDK for JavaScript, providing a comprehensive set of tools for interacting with AWS services. Unlike @aws-cdk/cfnspec, which focuses on CloudFormation specifications, `aws-sdk` allows you to directly interact with AWS services, making API calls to manage resources.
The `cloudformation-js-yaml-schema` package provides a JSON schema for AWS CloudFormation templates. It is useful for validating CloudFormation templates written in YAML or JSON. While it focuses on template validation, @aws-cdk/cfnspec provides a more comprehensive set of tools for working with CloudFormation specifications programmatically.
The `cdk` package is the AWS Cloud Development Kit, which allows you to define cloud infrastructure using a programming language. It provides higher-level abstractions for AWS resources, whereas @aws-cdk/cfnspec provides the raw CloudFormation specifications that can be used to build such abstractions.
To update the CloudFormation spec to the latest version, run:
npm run update
Any JSON hashes are alpha-sorted to make sure that only actual changes appear in diffs.
0.32.0 (2019-05-24)
@aws-cdk/aws-route53-targets
package.IBucket.arnForObject
method no longer
concatenates path fragments on your behalf. Pass the /
-concatenated
key pattern instead.export
methods from all AWS resources have been removed. CloudFormation Exports are now automatically created when attributes are referenced across stacks within the same app. To export resources manually, you can explicitly define a CfnOutput
.kms.EncryptionKey
renamed to kms.Key
ec2.VpcNetwork
renamed to ec2.Vpc
ec2.VpcSubnet
renamed to ec2.Subnet
cloudtrail.CloudTrail
renamed to
cloudtrail.Trail`XxxAttribute
and XxxImportProps
interfaces which were no longer in used after their corresponding export
method was deleted and there was no use for them in imports.ecs.ClusterAttributes
now accepts IVpc
and ISecurityGroup
instead of attributes. You can use their
corresponding fromXxx
methods to import them as needed.servicediscovery.CnameInstance.instanceCname
renamed to cname
.glue.IDatabase.locationUrl
is now only in glue.Database
(not on the interface)ec2.TcpPortFromAttribute
and UdpPortFromAttribute
removed. Use TcpPort
and UdpPort
with new Token(x).toNumber
instead.ec2.VpcNetwork.importFromContext
renamed to ec2.Vpc.fromLookup
iam.IRole.roleId
has been removed from the interface, but Role.roleId
is still available for owned resources.loadBalancer
property in ServerDeploymentGroupProps has been changed.apigateway.ResourceBase.trackChild
is now internal.cloudfront.S3OriginConfig.originAccessIdentity
is now originAccessIdentityId
codedeploy.LambdaDeploymentGroup.alarms
is now cloudwatch.IAlarm[]
(previously cloudwatch.Alarm[]
)codepipeline.crossRegionScaffoldingStacks
renamed to crossRegionScaffolding
codepipeline.CrossRegionScaffoldingStack
renamed to codepipeline.CrossRegionScaffolding
and cannot be instantiated (abstract)ec2.VpcSubnet.addDefaultRouteToNAT
renamed to addDefaultNatRoute
and made publicec2.VpcSubnet.addDefaultRouteToIGW
renamed to addDefaultInternetRoute
, made public and first argument is the gateway ID (string) and not the CFN L1 classecs.Ec2EventRuleTarget.taskDefinition
is now ITaskDefinition
(previously TaskDefinition
)lambda.IEventSource.bind
now accepts IFunction
instead of FunctionBase
. Use IFunction.addEventSourceMapping
to add an event source mapping under the function.lambda.Layer.grantUsage
renamed to lambda.layer.addPermission
and returns voidstepfunctions.StateMachine.role
is now iam.IRole
(previously iam.Role
)onXxx()
CloudWatch Event methods now have the signature:
resource.onEvent('SomeId', {
target: new SomeTarget(...),
// options
});
onAlarm
was renamed to addAlarmAction
onOk
was renamed to addOkAction
onInsufficientData
was renamed to addInsufficientDataAction
onLifecycleTransition
was renamed to addLifecycleHook
onPreHook
was renamed to addPreHook
onPostHook
was renamed to addPostHook
onXxx
were renamed to addXxxTrigger
onImagePushed
was renamed to onCloudTrailImagePushed
onEvent
was renamed to addEventNotification
onObjectCreated
was renamed to addObjectCreatedNotification
onObjectRemoved
was renamed to addObjectRemovedNotification
onPutObject
was renamed to onCloudTrailPutObject
FAQs
The CloudFormation resource specification used by @aws-cdk packages
The npm package @aws-cdk/cfnspec receives a total of 124,572 weekly downloads. As such, @aws-cdk/cfnspec popularity was classified as popular.
We found that @aws-cdk/cfnspec demonstrated a healthy version release cadence and project activity because the last version was released less than a year ago. It has 4 open source maintainers collaborating on the project.
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