From 35cd963f8c805e645a96460826ce972a60e3d8f1 Mon Sep 17 00:00:00 2001
From: hexchen <hexchen@lilwit.ch>
Date: Wed, 18 Aug 2021 17:08:24 +0000
Subject: [PATCH] services/gitlab-runner: init on parsons

also disable ci for hainich
---
 .gitlab-ci.yml                  |  7 ----
 hosts/parsons/configuration.nix |  8 +++++
 hosts/parsons/hardware.nix      |  5 +++
 modules/nftnat/default.nix      |  4 +--
 pkgs/default.nix                |  4 ++-
 services/gitlab-runner.nix      | 63 +++++++++++++++++++++++++++++++++
 6 files changed, 81 insertions(+), 10 deletions(-)
 create mode 100644 services/gitlab-runner.nix

diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index a3f0205..6e67dcc 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -14,10 +14,3 @@ build-nixda:
   stage: build
   script:
     - nix-build -A deploy.nixda
-
-build-hainich:
-  tags:
-    - nix
-  stage: build
-  script:
-    - nix-build -A deploy.hainich
diff --git a/hosts/parsons/configuration.nix b/hosts/parsons/configuration.nix
index a5cab21..f7efc33 100644
--- a/hosts/parsons/configuration.nix
+++ b/hosts/parsons/configuration.nix
@@ -18,6 +18,7 @@
     ../../services/syncthing.nix
     ../../services/gitlab.nix
     ../../services/nginx-pages.nix
+    ../../services/gitlab-runner.nix
 
     ./lxc.nix
   ];
@@ -48,6 +49,13 @@
     address = "fe80::1";
     interface = "enp35s0";
   };
+  boot = {
+    kernelModules = [ "nf_nat_ftp" ];
+    kernel.sysctl = {
+      "net.ipv4.conf.all.forwarding" = lib.mkOverride 90 true;
+      "net.ipv4.conf.default.forwarding" = lib.mkOverride 90 true;
+    };
+  };
 
   services.nginx = {
     enable = true;
diff --git a/hosts/parsons/hardware.nix b/hosts/parsons/hardware.nix
index 36c90bb..e71bcca 100644
--- a/hosts/parsons/hardware.nix
+++ b/hosts/parsons/hardware.nix
@@ -55,6 +55,11 @@
       fsType = "zfs";
     };
 
+  fileSystems."/var/lib/docker" =
+    { device = "zroot/local/docker";
+      fsType = "zfs";
+    };
+
   swapDevices = [ ];
 
 }
diff --git a/modules/nftnat/default.nix b/modules/nftnat/default.nix
index b3fc2c2..e5481f5 100644
--- a/modules/nftnat/default.nix
+++ b/modules/nftnat/default.nix
@@ -36,8 +36,8 @@ in {
     boot = {
       kernelModules = [ "nf_nat_ftp" ];
       kernel.sysctl = {
-        "net.ipv4.conf.all.forwarding" = mkOverride 98 true;
-        "net.ipv4.conf.default.forwarding" = mkOverride 98 true;
+        "net.ipv4.conf.all.forwarding" = mkOverride 90 true;
+        "net.ipv4.conf.default.forwarding" = mkOverride 90 true;
       };
     };
 
diff --git a/pkgs/default.nix b/pkgs/default.nix
index ea59e11..703ea98 100644
--- a/pkgs/default.nix
+++ b/pkgs/default.nix
@@ -11,7 +11,9 @@ let
     alps = callPackage ./alps {};
 
     docker = pkgs.docker.overrideAttrs (super: {
-      extraPath = super.extraPath + ":${pkgs.zfs}/bin";
+      moby = super.moby.overrideAttrs (super: {
+        extraPath = super.extraPath + ":${pkgs.zfs}/bin";
+      });
     });
 
     linuxPackagesFor = kernel: (pkgs.linuxPackagesFor kernel).extend (_: ksuper: {
diff --git a/services/gitlab-runner.nix b/services/gitlab-runner.nix
new file mode 100644
index 0000000..6968d1c
--- /dev/null
+++ b/services/gitlab-runner.nix
@@ -0,0 +1,63 @@
+{config, pkgs, lib, ...}:
+
+{
+  services.gitlab-runner = {
+    enable = true;
+    concurrent = 4;
+    services = {
+      infra4future = {
+        buildsDir = "/persist/var/lib/gitlab-runner/builds";
+        dockerImage = "nixos/nix";
+        executor = "docker";
+        registrationConfigFile = "/persist/var/lib/gitlab-runner/gitlab-runner.env";
+      };
+      nix = {
+        limit = 1; # don't run multiple jobs
+        registrationConfigFile = "/persist/var/lib/gitlab-runner/gitlab-runner.env";
+        dockerImage = "alpine";
+        dockerVolumes = [
+          "/nix/store:/nix/store:ro"
+          "/nix/var/nix/db:/nix/var/nix/db:ro"
+          "/nix/var/nix/daemon-socket:/nix/var/nix/daemon-socket:ro"
+        ];
+        dockerDisableCache = true;
+        preBuildScript = pkgs.writeScript "setup-container" ''
+          mkdir -p -m 0755 /nix/var/log/nix/drvs
+          mkdir -p -m 0755 /nix/var/nix/gcroots
+          mkdir -p -m 0755 /nix/var/nix/profiles
+          mkdir -p -m 0755 /nix/var/nix/temproots
+          mkdir -p -m 0755 /nix/var/nix/userpool
+          mkdir -p -m 1777 /nix/var/nix/gcroots/per-user
+          mkdir -p -m 1777 /nix/var/nix/profiles/per-user
+          mkdir -p -m 0755 /nix/var/nix/profiles/per-user/root
+          mkdir -p -m 0700 "$HOME/.nix-defexpr"
+          . ${pkgs.nix}/etc/profile.d/nix.sh
+          ${pkgs.nix}/bin/nix-env -i ${lib.concatStringsSep " " (with pkgs; [ nix cacert git openssh ])}
+          ${pkgs.nix}/bin/nix-channel --add https://nixos.org/channels/nixpkgs-unstable
+          ${pkgs.nix}/bin/nix-channel --update nixpkgs
+        '';
+        environmentVariables = {
+          ENV = "/etc/profile";
+          USER = "root";
+          NIX_REMOTE = "daemon";
+          PATH = "/nix/var/nix/profiles/default/bin:/nix/var/nix/profiles/default/sbin:/bin:/sbin:/usr/bin:/usr/sbin";
+          NIX_SSL_CERT_FILE = "/nix/var/nix/profiles/default/etc/ssl/certs/ca-bundle.crt";
+        };
+        tagList = [ "nix" ];
+      };
+    };
+  };
+
+  systemd.services.gitlab-runner.serviceConfig = {
+    DynamicUser = lib.mkForce false;
+    User = "gitlab-runner";
+  };
+
+  users.users.gitlab-runner = {
+    home = "/persist/var/lib/gitlab-runner";
+    extraGroups = [ "docker" ];
+    isSystemUser = true;
+  };
+
+  virtualisation.docker.storageDriver = "zfs";
+}