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Merge pull request #121702 from hercules-ci/nixos-hercules-ci-agent-update

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nixos/hercules-ci-agent: updates
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Robert Hensing 2021-05-07 15:48:33 +02:00 committed by GitHub
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3 changed files with 52 additions and 10 deletions
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26
nixos/modules/services/continuous-integration/hercules-ci-agent/common.nix
View file

@ -37,15 +37,22 @@ let
description = ''
Number of tasks to perform simultaneously.
A task is a single derivation build or an evaluation.
A task is a single derivation build, an evaluation or an effect run.
At minimum, you need 2 concurrent tasks for <literal>x86_64-linux</literal>
in your cluster, to allow for import from derivation.
<literal>concurrentTasks</literal> can be around the CPU core count or lower if memory is
the bottleneck.
The optimal value depends on the resource consumption characteristics of your workload,
including memory usage and in-task parallelism. This is typically determined empirically.
When scaling, it is generally better to have a double-size machine than two machines,
because each split of resources causes inefficiencies; particularly with regards
to build latency because of extra downloads.
'';
type = types.int;
default = 4;
type = types.either types.ints.positive (types.enum [ "auto" ]);
default = "auto";
};
workDirectory = mkOption {
description = ''
@ -186,7 +193,18 @@ in
# even shortly after the previous lookup. This *also* applies to the daemon.
narinfo-cache-negative-ttl = 0
'';
services.hercules-ci-agent.tomlFile =
services.hercules-ci-agent = {
tomlFile =
format.generate "hercules-ci-agent.toml" cfg.settings;
settings.labels = {
agent.source =
if options.services.hercules-ci-agent.package.highestPrio == (lib.modules.mkOptionDefault { }).priority
then "nixpkgs"
else lib.mkOptionDefault "override";
pkgs.version = pkgs.lib.version;
lib.version = lib.version;
};
};
};
}

18
nixos/modules/services/continuous-integration/hercules-ci-agent/default.nix
View file

@ -68,7 +68,23 @@ in
# Trusted user allows simplified configuration and better performance
# when operating in a cluster.
nix.trustedUsers = [ config.systemd.services.hercules-ci-agent.serviceConfig.User ];
services.hercules-ci-agent.settings.nixUserIsTrusted = true;
services.hercules-ci-agent = {
settings = {
nixUserIsTrusted = true;
labels =
let
mkIfNotNull = x: mkIf (x != null) x;
in
{
nixos.configurationRevision = mkIfNotNull config.system.configurationRevision;
nixos.release = config.system.nixos.release;
nixos.label = mkIfNotNull config.system.nixos.label;
nixos.codeName = config.system.nixos.codeName;
nixos.tags = config.system.nixos.tags;
nixos.systemName = mkIfNotNull config.system.name;
};
};
};
users.users.hercules-ci-agent = {
home = cfg.settings.baseDirectory;

16
pkgs/development/tools/continuous-integration/hercules-ci-agent/default.nix
View file

@ -1,4 +1,4 @@
{ gnutar, gzip, git, haskell, haskellPackages, lib, makeWrapper, runc, stdenv }:
{ gnutar, gzip, git, haskell, haskellPackages, lib, makeWrapper, nixos, runc, stdenv }:
let
inherit (haskell.lib) overrideCabal addBuildDepends;
inherit (lib) makeBinPath;
@ -16,8 +16,16 @@ let
makeWrapper $out/libexec/hercules-ci-agent $out/bin/hercules-ci-agent --prefix PATH : ${makeBinPath bundledBins}
'';
});
in pkg // {
meta = pkg.meta // {
in pkg.overrideAttrs (o: {
meta = o.meta // {
position = toString ./default.nix + ":1";
};
}
passthru = o.passthru // {
# Does not test the package, but evaluation of the related NixOS module.
tests.nixos-minimal-config = nixos {
boot.loader.grub.enable = false;
fileSystems."/".device = "bogus";
services.hercules-ci-agent.enable = true;
};
};
})