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cache: prevent small objects from transitioning to Glacier #960

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cache: prevent small objects from transitioning to Glacier #960

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9 changes: 8 additions & 1 deletion terraform/cache.tf
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Expand Up @@ -21,7 +21,14 @@ resource "aws_s3_bucket_lifecycle_configuration" "cache" {

depends_on = [aws_s3_bucket_versioning.cache]

transition_default_minimum_object_size = "varies_by_storage_class"
# Prevent objects <128KB from transitioning to any storage class.
# This avoids small files (like narinfos) being billed as 128KB in Glacier.
#
# Because our bucket is old, we were on the previous default of
# `varies_by_storage_class`. Amazon since September 2024 defaults to
# `all_storage_classes_128K`.
# https://aws.amazon.com/about-aws/whats-new/2024/09/amazon-s3-default-minimum-object-size-lifecycle-transition-rules/
transition_default_minimum_object_size = "all_storage_classes_128K"

rule {
id = "Infrequent Access"
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