EC2: Add Graviton4 processors C8g and M8g to EC2 instance class

[rockaport]

Describe the feature

I'm not sure what's required in terms of availability for adding a new instance class, but they were released in September.

If it's as straightforward as just updating the enum I'm willing to submit a PR:
packages/aws-cdk-lib/aws-ec2/lib/instance-types.ts

Use Case

I'd like to use this instance class in my deployment

Proposed Solution

Update the instance class enum with these types

Other Information

No response

Acknowledgements

• I may be able to implement this feature request
• This feature might incur a breaking change

CDK version used

2.173.0

Environment details (OS name and version, etc.)

Ubuntu 24

[nmussy]

From what I see running DescribeInstanceTypes across us-east-1 and us-east-2, these are the currently missing instance types:

• c7i-flex
• c8g
• f2
• gr6
• i7ie
• i8g
• m8g
• p5e
• p5en
• trn2
• u7i-12tb
• u7i-6tb
• u7i-8tb
• u7in-16tb
• u7in-24tb
• u7in-32tb
• x8g

Some of these might be inaccessible without developer preview. If you want to add all of these, you should be able to find a human friendly name and a description here. Let me know if you need help!

[ashishdhingra]

From what I see running DescribeInstanceTypes across us-east-1 and us-east-2, these are the currently missing instance types:

• c7i-flex
• c8g
• f2
• gr6
• i7ie
• i8g
• m8g
• p5e
• p5en
• trn2
• u7i-12tb
• u7i-6tb
• u7i-8tb
• u7in-16tb
• u7in-24tb
• u7in-32tb
• x8g

Some of these might be inaccessible without developer preview. If you want to add all of these, you should be able to find a human friendly name and a description here. Let me know if you need help!

@nmussy Thanks for sharing the the links to get the missing instance types. CloudFormation documentation appears to be out of sync as well.

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