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nixos/docker-registry: fix mkIf misuse and OCI manifest test

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The redis block was wrapped in lib.mkIf inside a let binding. mkIf is a module system primitive that only works inside module config definitions; in a let binding its internal {_type, condition, content} structure got serialized straight into the JSON config file. Move the redis config into services.dockerRegistry.extraConfig with mkIf, where the module system handles it correctly.

Also update the test's curl accept header from application/vnd.docker.distribution.manifest.v2+json to application/vnd.oci.image.manifest.v1+json, since distribution v3 produces OCI manifests by default.
This commit is contained in:
Jamie Magee 2026-03-07 23:07:08 -08:00
commit 4607ff7cef
2 changed files with 17 additions and 15 deletions
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30
nixos/modules/services/misc/docker-registry.nix
View file

@ -28,20 +28,6 @@ let
};
};
registryConfig.redis = lib.mkIf cfg.enableRedisCache {
addr = "${cfg.redisUrl}";
password = "${cfg.redisPassword}";
db = 0;
dialtimeout = "10ms";
readtimeout = "10ms";
writetimeout = "10ms";
pool = {
maxidle = 16;
maxactive = 64;
idletimeout = "300s";
};
};
configFile = cfg.configFile;
in
{
@ -139,6 +125,22 @@ in
};
config = lib.mkIf cfg.enable {
services.dockerRegistry.extraConfig = lib.mkIf cfg.enableRedisCache {
redis = {
addr = "${cfg.redisUrl}";
password = "${cfg.redisPassword}";
db = 0;
dialtimeout = "10ms";
readtimeout = "10ms";
writetimeout = "10ms";
pool = {
maxidle = 16;
maxactive = 64;
idletimeout = "300s";
};
};
};
systemd.services.docker-registry = {
description = "Docker Container Registry";
wantedBy = [ "multi-user.target" ];

2
nixos/tests/docker-registry.nix
View file

@ -53,7 +53,7 @@
client2.succeed("docker images | grep scratch")
client2.succeed(
"curl -fsS -X DELETE registry:8080/v2/scratch/manifests/$(curl -fsS -I -H\"Accept: application/vnd.docker.distribution.manifest.v2+json\" registry:8080/v2/scratch/manifests/latest | grep Docker-Content-Digest | sed -e 's/Docker-Content-Digest: //' | tr -d '\\r')"
"curl -fsS -X DELETE registry:8080/v2/scratch/manifests/$(curl -fsS -I -H\"Accept: application/vnd.oci.image.manifest.v1+json\" registry:8080/v2/scratch/manifests/latest | grep Docker-Content-Digest | sed -e 's/Docker-Content-Digest: //' | tr -d '\\r')"
)
registry.systemctl("start docker-registry-garbage-collect.service")