Skip to content

Cache NAR files for upto a year #727

New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Open
wants to merge 6 commits into
base: main
Choose a base branch
from
Open

Cache NAR files for upto a year #727

Changes from all commits
Commits
Show all changes
6 commits
Select commit Hold shift + click to select a range
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
File filter

Filter by extension

Filter by extension
Conversations
Failed to load comments.
Loading
Jump to
Jump to file
Failed to load files.
Loading
Diff view
Diff view
19 changes: 19 additions & 0 deletions terraform/cache.tf
View file
Open in desktop
Copy link
Contributor

Choose a reason for hiding this comment

The reason will be displayed to describe this comment to others. Learn more.

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

Copy link
Member Author

Choose a reason for hiding this comment

The reason will be displayed to describe this comment to others. Learn more.

Yes will do

Original file line number Diff line number Diff line change
Expand Up @@ -137,6 +137,12 @@ resource "fastly_service_vcl" "cache" {
name = local.cache_domain
default_ttl = 86400

# https://registry.terraform.io/providers/fastly/fastly/latest/docs/resources/service_vcl#activation-and-staging
# activate should not be set to true when stage is also set to true. While this combination will not cause any harm to the service,
# there is no logical reason to both stage and activate every set of applied changes.
activate = false # set to true to deploy
stage = true # set to false to remove staging environment

backend {
address = "s3.amazonaws.com"
auto_loadbalance = false
Expand Down Expand Up @@ -174,6 +180,13 @@ resource "fastly_service_vcl" "cache" {
type = "REQUEST"
}

condition {
name = "is-nar"
priority = 10
statement = "beresp.status == 200 && req.url ~ \"^/nar/\" "
type = "CACHE"
}

domain {
name = "cache.nixos.org"
}
Expand Down Expand Up @@ -239,6 +252,12 @@ resource "fastly_service_vcl" "cache" {
status = 404
}

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
Loading