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[Test] Exclude a1 instance type family from tests - #7599

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gmarciani merged 1 commit into
aws:developfrom
gmarciani:wip/mgiacomo/3170/test-avoid-graviton1-0902-1
Sep 2, 2026
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[Test] Exclude a1 instance type family from tests#7599
gmarciani merged 1 commit into
aws:developfrom
gmarciani:wip/mgiacomo/3170/test-avoid-graviton1-0902-1

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Description of changes

Exclude a1 instance type family from tests as it is based on Graviton 1 which is not supported by the latest version of AL2023.

when A1 instance type is used with AL2023, the cluster creation fails the head node bootstrap with the error:

Fatal glibc error: This version of Amazon Linux requires a newer ARM64 processor
                   compliant with at least ARM architecture 8.2-a with Cryptographic
                   extensions. On EC2 this is Graviton 2 or later.
[    1.581422] Kernel panic - not syncing: Attempted to kill init! exitcode=0x00007f00

Further Improvement

The constant EXCLUDED_INSTANCE_TYPE_PREFIXES lists all the instance type we want to exclude from our testing. Despite it is used only for testing purposes it is defined in the product code, which is a bad practice. Will do the refactoring in a follow up activity.

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

@gmarciani
gmarciani requested a review from a team as a code owner September 2, 2026 17:13
@gmarciani gmarciani added the skip-changelog-update Disables the check that enforces changelog updates in PRs label Sep 2, 2026
@gmarciani
gmarciani requested a review from a team as a code owner September 2, 2026 17:13
@gmarciani
gmarciani enabled auto-merge (rebase) September 2, 2026 17:13
…raviton 1 which is not supported by the latest version of AL2023.
@gmarciani
gmarciani force-pushed the wip/mgiacomo/3170/test-avoid-graviton1-0902-1 branch from e8e4ef1 to 71f8a1d Compare September 2, 2026 17:35
@gmarciani
gmarciani merged commit e00c2ea into aws:develop Sep 2, 2026
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@gmarciani
gmarciani deleted the wip/mgiacomo/3170/test-avoid-graviton1-0902-1 branch September 2, 2026 18:39
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github-actions Bot commented Sep 4, 2026

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✅ Cherry-pick to release-3.16 opened: #7608

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