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|
{ config, lib, pkgs, ... }:
with lib;
let
cfg = config.modules.services.atticd;
in
{
options.modules.services.atticd = {
enable = mkEnableOption "Whether to enable atticd, a Multi-tenant Nix Binary Cache";
hosts = mkOption { type = types.listOf types.str; description = "List of FQDNs where attic is reachable at"; };
baseURL = mkOption { type = types.str; description = "URL to use as a API Endpoint"; };
storagePath = mkOption { type = types.path; description = "Path to the directory to store all files under"; };
watchStore = mkEnableOption "Whether to watch the Nix store for new paths";
secrets = {
attic-credentials = mkOption { type = types.path; description = "Path to the acme environment file"; };
};
};
config = mkMerge [
(mkIf cfg.enable {
services.atticd = {
enable = true;
credentialsFile = cfg.secrets.attic-credentials;
settings = {
listen = "[::]:4005";
allowed-hosts = cfg.hosts;
api-endpoint = cfg.baseURL;
database.url = "postgres://atticd?host=/run/postgresql";
require-proof-of-possession = false;
# Data chunking
#
# Warning: If you change any of the values here, it will be
# difficult to reuse existing chunks for newly-uploaded NARs
# since the cutpoints will be different. As a result, the
# deduplication ratio will suffer for a while after the change.
chunking = {
# The minimum NAR size to trigger chunking
#
# IUUU, chunking is disabled entirely for newly-uploaded NARs.
# If 1, all NARs are chunked.
nar-size-threshold = 64 * 1024; # 64 KiB
# The preferred minimum size of a chunk, in bytes
min-size = 16 * 1024; # 16 KiB
# The preferred average size of a chunk, in bytes
avg-size = 64 * 1024; # 64 KiB
# The preferred maximum size of a chunk, in bytes
max-size = 256 * 1024; # 256 KiB
};
storage = {
type = "local";
path = cfg.storagePath;
};
compression = {
type = "zstd";
level = 9;
};
garbage-collection = {
interval = "12 hours";
default-retention-period = "4 weeks";
};
};
};
services.postgresql.ensureDatabases = [ "atticd" ];
services.postgresql.ensureUsers = [
{
name = "atticd";
ensureDBOwnership = true;
}
];
services.nginx.virtualHosts = builtins.listToAttrs (map
(host: {
name = host;
value = {
extraConfig = ''
client_max_body_size 0;
proxy_read_timeout 300s;
proxy_send_timeout 300s;
'';
};
})
cfg.hosts);
})
(mkIf cfg.watchStore {
systemd.services.atticd-watch-store = mkIf cfg.watchStore {
wantedBy = [ "multi-user.target" ];
wants = [ "network-online.target" ];
serviceConfig = {
DynamicUser = true;
StateDirectory = "atticd-watch-store";
# NOTE: currently this expects `attic/config.toml` to be manually
# generated and placed on `/var/lib/atticd-watch-store`
Environment = "XDG_CONFIG_HOME=/var/lib/atticd-watch-store";
ExecStart = "${pkgs.attic}/bin/attic watch-store hydra";
Restart = "on-failure";
RestartSec = "5s";
ProtectKernelLogs = true;
ProtectKernelModules = true;
ProtectKernelTunables = true;
ProtectProc = "invisible";
ProtectSystem = "strict";
RestrictAddressFamilies = [ "AF_INET" "AF_INET6" "AF_UNIX" ];
RestrictNamespaces = true;
RestrictSUIDSGID = true;
};
};
modules.persistence.directories = [
"/var/lib/private/atticd-watch-store"
];
})
];
}
|
