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Update docs for new compute environment default image#532

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victorlin/update-aws-batch-doc
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Update docs for new compute environment default image#532
victorlin wants to merge 2 commits into
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victorlin/update-aws-batch-doc

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@victorlin victorlin commented May 21, 2026

Description of proposed changes

The default changed to Amazon Linux 2023 in January 2026.¹ Things are largely the same and I don't think anything in the doc needs to change given our usage (though I haven't actually tested the steps in this section).

One small noteworthy change is replacement of YUM with DNF. I did not change the yum command because AL2023 still provides yum as a pointer to dnf

¹ https://docs.aws.amazon.com/batch/latest/userguide/ecs-migration-2023.html
² https://docs.aws.amazon.com/linux/al2023/ug/package-management.html

Related issue(s)

nextstrain/infra#62

Checklist

  • Checks pass
  • Update changelog

victorlin added 2 commits May 21, 2026 10:36
The default changed to Amazon Linux 2023 in January 2026.¹ Things are
largely the same and I don't think anything in the doc needs to change
given our usage (though I haven't actually tested the steps in this
section).

One small noteworthy change is replacement of YUM with DNF. I did not
change the `yum` command because AL2023 still provides `yum` as a
pointer to `dnf`.²

¹
https://docs.aws.amazon.com/batch/latest/userguide/ecs-migration-2023.html
² https://docs.aws.amazon.com/linux/al2023/ug/package-management.html
@victorlin victorlin self-assigned this May 21, 2026
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