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Cache NAR files for upto a year #727

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Cache NAR files for upto a year #727

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50e8b3e
Cache NAR files for upto a year
arianvp Jun 10, 2025
e953303
Fix regex
arianvp Jun 10, 2025
9077b78
Explicitly cache 404s
arianvp Jun 10, 2025
b5390fc
stage changes instead of instantly applying
arianvp Jun 12, 2025
8a2324c
Fix formatting
arianvp Jun 12, 2025
dce6279
only cache NAR 200s and not 404s
arianvp Jul 13, 2025
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19 changes: 19 additions & 0 deletions terraform/cache.tf
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@jfly jfly Jul 13, 2025

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Could you add comment(s) to tge relevant part of this file explaining what we've learned about the is-404 codepath?

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@arianvp arianvp Jul 13, 2025

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Yes will do

Original file line number Diff line number Diff line change
Expand Up @@ -174,6 +174,13 @@ resource "fastly_service_vcl" "cache" {
type = "REQUEST"
}

condition {
name = "is-nar"
priority = 10
statement = "req.url ~ \"^/nar/\""
type = "CACHE"
}

domain {
name = "cache.nixos.org"
}
Expand Down Expand Up @@ -239,6 +246,18 @@ resource "fastly_service_vcl" "cache" {
status = 404
}

cache_setting {
name = "cache-404"
cache_condition = "is-404"
ttl = 86400 # 1 day
}

cache_setting {
name = "cache-nar"
cache_condition = "is-nar"
ttl = 31557600 # the maximum. 1 year
}

# Authenticate Fastly<->S3 requests. See Fastly documentation:
# https://docs.fastly.com/en/guides/amazon-s3#using-an-amazon-s3-private-bucket
snippet {
Expand Down