feat(ec2): support for the credit configuration mode for burstable instances #28728

badmintoncryer · 2024-01-16T18:07:32Z

In this PR, I have enabled the setting of the credit configuration mode for EC2 instances and NAT instances in burstable performance instances.

// for EC2 instance
new Instance(stack, 'Instance', {
  vpc,
  machineImage: new AmazonLinuxImage(),
  instanceType: InstanceType.of(InstanceClass.T3, InstanceSize.LARGE),
  creditSpecification: CpuCredits.STANDARD, // added
});

// for NAT instance
const natInstanceProvider = NatProvider.instance({
  instanceType: InstanceType.of(InstanceClass.T3, InstanceSize.LARGE),
  machineImage: new AmazonLinuxImage(),
  creditSpecification: CpuCredits.STANDARD, // added
});
new Vpc(stack, 'VPC', {
  natGatewayProvider: natInstanceProvider,
});

Closes #19166.

By submitting this pull request, I confirm that my contribution is made under the terms of the Apache-2.0 license

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go-to-k

Thanks for this PR.
The implementation looks good. I made some comments.

go-to-k · 2024-01-21T09:04:33Z

packages/aws-cdk-lib/aws-ec2/lib/instance.ts

+
+  /**
+   * Specifying the CPU credit type for burstable EC2 instance types (T2, T3, T3a, etc).
+   * T3 instances with `host` tenancy do not support the unlimited CPU credit option.


This document appears to be taken from the L1 or CFn text.
The host here refers to the tenancy property of CfnInstanceProps, which is not visible in the L2 construct. Wouldn't it therefore be more appropriate to use the word dedicated host?

Otherwise, users may be get confused (like me).

@go-to-k
Indeed, you're right. I've updated the sentence, so please check it.

go-to-k · 2024-01-21T09:08:03Z

packages/aws-cdk-lib/aws-ec2/lib/nat.ts

+
+  /**
+   * Specifying the CPU credit type for burstable EC2 instance types (T2, T3, T3a, etc).
+   * T3 instances with `host` tenancy do not support the unlimited CPU credit option.


same as above

go-to-k · 2024-01-21T09:14:35Z

packages/aws-cdk-lib/aws-ec2/lib/instance.ts

@@ -370,6 +379,11 @@ export class Instance extends Resource implements IInstance {
      throw new Error('Cannot specify both of \'keyName\' and \'keyPair\'; prefer \'keyPair\'');
    }

+    // if credit specification is set, then the instance type must be burstable
+    if (props.creditSpecification && !props.instanceType.isBurstable()) {
+      throw new Error(`creditSpecification is not supported for ${props.instanceType.toString()} instance type`);


How about outputting which instance types are supported?

go-to-k · 2024-01-21T09:24:40Z

packages/aws-cdk-lib/aws-ec2/test/nat.test.ts

Since there are already tests for Nat instances, how about putting them in here instead of adding new files? If they are scattered, the contributors will not know which file to put them in when adding tests for Nat instances in the future.

(But if you have a particular intention, I will respect that.)

I hadn't noticed the existing test code. Thank you for your suggestion.

badmintoncryer · 2024-01-21T20:00:35Z

@go-to-k Thank you for your review! I have addressed your comments.

go-to-k

Thanks for your change, I made some comments again.

packages/aws-cdk-lib/aws-ec2/lib/instance.ts

badmintoncryer · 2024-01-22T17:10:10Z

@go-to-k Thank you! I have made the revisions again.

go-to-k

Thanks!

Co-authored-by: k.goto <24818752+go-to-k@users.noreply.github.com>

aws-cdk-automation · 2024-02-29T23:27:25Z

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mergify · 2024-02-29T23:27:39Z

Thank you for contributing! Your pull request will be updated from main and then merged automatically (do not update manually, and be sure to allow changes to be pushed to your fork).

github-actions bot added admired-contributor [Pilot] contributed between 13-24 PRs to the CDK effort/small Small work item – less than a day of effort feature-request A feature should be added or improved. p2 labels Jan 16, 2024

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badmintoncryer changed the title ~~feat(ec2): support for the credit configuration mode for a EC2 instance including NAT instance.~~ feat(ec2): support for the credit configuration mode for a EC2 instance including NAT instance Jan 17, 2024

badmintoncryer changed the title ~~feat(ec2): support for the credit configuration mode for a EC2 instance including NAT instance~~ feat(ec2): support for the credit configuration mode for burstable instances Jan 17, 2024

aws-cdk-automation added the pr/needs-community-review This PR needs a review from a Trusted Community Member or Core Team Member. label Jan 17, 2024

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badmintoncryer force-pushed the 19166-creditSpecification branch from 2f6b436 to 06a904c Compare January 21, 2024 18:15

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badmintoncryer added 8 commits February 13, 2024 14:31

feat: add creditSpecification to InstanceProps

198d8e3

feat: add creditSpecification to NatInstanceProps

0b837f9

test: update unit test

70abcfe

test: integ test

69a645b

docs: updte readme

37cdf63

fix: import order

4cbd063

fix: unit test

f0760c3

test: integ test

338d85f

badmintoncryer and others added 9 commits February 13, 2024 14:31

fix: readme

16012bc

feat: throw for creditSpecification defined to non-burstable instance

2a5300a

fix: README

0c1d2ae

refactor: update unit test

d56e17d

docs: update comment

5af31ef

docs: update comment

7d8c659

instance.ts を更新

07221d4

Co-authored-by: k.goto <24818752+go-to-k@users.noreply.github.com>

instance.ts を更新

3ef1df5

Co-authored-by: k.goto <24818752+go-to-k@users.noreply.github.com>

fix: unit test

779fe6d

badmintoncryer force-pushed the 19166-creditSpecification branch from 0a2e48d to 779fe6d Compare February 13, 2024 05:31

badmintoncryer and others added 2 commits February 26, 2024 13:09

Merge branch 'main' into 19166-creditSpecification

f9e7793

Merge branch 'main' into 19166-creditSpecification

223e95b

aaythapa approved these changes Feb 29, 2024

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mergify bot merged commit 3cbad4a into aws:main Feb 29, 2024
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badmintoncryer deleted the 19166-creditSpecification branch March 1, 2024 01:34

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feat(ec2): support for the credit configuration mode for burstable instances #28728

feat(ec2): support for the credit configuration mode for burstable instances #28728

badmintoncryer commented Jan 16, 2024 •

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feat(ec2): support for the credit configuration mode for burstable instances #28728

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