@aws-cdk/aws-autoscaling
Advanced tools
This module is part of the AWS Cloud Development Kit project.
An AutoScalingGroup represents a number of instances on which you run your code. You
pick the size of the fleet, the instance type and the OS image:
import ec2 = require('@aws-cdk/aws-ec2');
new ec2.AutoScalingGroup(stack, 'ASG', {
vpc,
instanceType: new ec2.InstanceTypePair(InstanceClass.Burstable2, InstanceSize.Micro),
machineImage: new ec2.LinuxImage({
'us-east-1': 'ami-97785bed'
})
});
NOTE: AutoScalingGroup has an property called
allowAllOutbound(allowing the instances to contact the internet) which is set totrueby default. Be sure to set this tofalseif you don't want your instances to be able to start arbitrary connections.
AMIs control the OS that gets launched when you start your instance.
Depending on the type of AMI, you select it a different way.
The latest version of Windows images are regionally published under labels, so you can select Windows images like this:
new ec2.WindowsImage(WindowsVersion.WindowsServer2016EnglishNanoBase)
You can select the latest Amazon Linux image like this:
new ec2.AmazonLinuxImage()
Other Linux images are unfortunately not currently published this way, so you have to supply a region-to-AMI map when creating a Linux image:
machineImage: new ec2.GenericLinuxImage({
'us-east-1': 'ami-97785bed',
'eu-west-1': 'ami-12345678',
// ...
})
NOTE: Selecting Linux images will change when the information is published in an automatically consumable way.
See the documentation of the aws-ec2 package for more information about allowing connections between resources backed by instances.
0.11.0 (2018-10-11)
IMPORTANT NOTE: This release includes a breaking change in the toolkit <=> app protocol. This means that in order to synthesize CDK apps that use this version, the globally installed CDK toolkit must also be updated:
$ npm i -g aws-cdk
$ cdk --version
0.11.0 (build ...)
Like always, you will also need to update your project's library versions:
Language | Update?
--------------------------- | ------------------------------------------------------------------------------------------------------------------
JavaScript/TypeScript (npm) | npx npm-check-updates -u
Java (maven) | mvn versions:use-latest-versions
.NET (NuGet) | nuget update
framework: The cdk.App constructor doesn't accept any arguments, and app.run() does not return a string anymore. All AWS CDK apps in all languages would need to be modified to adhere to the new API of the cdk.App construct.
Instead of:
const app = new App(process.argv); // ERROR
// add stacks
process.stdout.write(app.run()); // ERROR
The new usage is:
const app = new App();
// add stacks
app.run();
framework: The CDK is no longer shipped with built-in support for JSX. You can still use JSX but you will have to manually configure it.
aws-iam: PolicyDocument, PolicyStatement and all PolicyPrincipal classes moved from the @aws-cdk/cdk module and into the @aws-cdk/aws-iam module.
aws-codepipeline-api: Artifact.subartifact method of the CodePipeline API was renamed to Artifact.atPath.
constructor signature of TagManager has changed. initialTags is now passed inside a props object.
util: @aws-cdk/util is no longer available
aws-elasticloadbalancingv2: Adds classes for modeling Application and Network Load Balancers. AutoScalingGroups now implement the interface that makes constructs a load balancing target. The breaking change is that Security Group rule identifiers have been changed in order to make adding rules more reliable. No code changes are necessary but existing deployments may experience unexpected changes.
aws-cloudformation: this renames all CloudFormation Actions for CodePipeline to bring them in line with Actions defined in other service packages.
aws-codepipeline, aws-codecommit, aws-s3: change the names of the source Actions from XxxSource to XxxSourceAction. This is to align them with the other Actions, like Build. Also, CodeBuild has the concept of Sources, so it makes sense to strongly differentiate between the two.
FAQs
The CDK Construct Library for AWS::AutoScaling
The npm package @aws-cdk/aws-autoscaling receives a total of 31,700 weekly downloads. As such, @aws-cdk/aws-autoscaling popularity was classified as popular.
We found that @aws-cdk/aws-autoscaling demonstrated a not healthy version release cadence and project activity because the last version was released a year ago. It has 4 open source maintainers collaborating on the project.
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