Merge pull request #110 from nix-community/build04

add build04

README.md

@@ -59,6 +59,16 @@ This machine is a replacement for build01.
 * RAM: 64GB DDR4 ECC
 * Drives: 2 x 512 TB NVME in RAID 1
 
+### `build04`
+
+This machine is meant as an aarch64 builder for our hydra instance running on build03.
+
+* Provider: Oracle cloud
+* Instance type: [Ampere A1 Compute](https://www.oracle.com/cloud/compute/arm/)
+* CPU: 4 VCPUs on an Ampere Altra (arm64) 
+* RAM: 24GB
+* Drives: 200 GB Block
+
 ## Cache
 
 All the builds on these machines are pushed to https://nix-community.cachix.org/

build04/configuration.nix

@@ -0,0 +1,45 @@
+{ config, pkgs, lib, ... }:
+{
+  imports = [
+    ./hardware-configuration.nix
+    ../roles/common.nix
+  ];
+
+  nixpkgs.system = "aarch64-linux";
+
+  # we use grub because systemd-boot sometimes fail on aarch64/EFI
+  boot.loader.grub.devices = [ "nodev" ];
+  boot.loader.grub.enable = true;
+  boot.loader.grub.efiSupport = true;
+  boot.loader.grub.version = 2;
+  boot.loader.efi.canTouchEfiVariables = true;
+  boot.loader.grub.extraConfig = ''
+    serial --unit=0 --speed=115200 --word=8 --parity=no --stop=1
+    terminal_input --append serial
+    terminal_output --append serial
+  '';
+
+  networking.hostName = "nix-community-build04";
+  networking.hostId = "8daf74c0";
+
+  networking.usePredictableInterfaceNames = false;
+  # networkd chokes on some ipv6 messages that the oracle network sends
+  networking.dhcpcd.enable = true;
+
+  system.stateVersion = "21.11";
+}
+
+# after loading kexec, be patient. The kexec image can take up to 5 minutes to boot
+# partition guide
+/*
+sgdisk -n 1:0:+800M -N 2 -t 1:ef00 -t 2:8304 /dev/sda
+mkfs.vfat -b32 /dev/sda1
+zpool create zroot -O acltype=posixacl -O xattr=sa -O compression=lz4 /dev/sda2
+zfs create -o mountpoint=none zroot/root
+zfs create -o mountpoint=legacy zroot/root/nixos
+zfs create -o mountpoint=legacy zroot/root/home
+mount -t zfs zroot/root/nixos /mnt
+mkdir /mnt/{home,boot}
+mount -t zfs zroot/root/home /mnt/home
+mount /dev/sda1 /mnt/boot
+*/

build04/hardware-configuration.nix

@@ -0,0 +1,32 @@
+# Do not modify this file!  It was generated by ‘nixos-generate-config’
+# and may be overwritten by future invocations.  Please make changes
+# to /etc/nixos/configuration.nix instead.
+{ config, lib, pkgs, modulesPath, ... }:
+
+{
+  imports =
+    [ (modulesPath + "/profiles/qemu-guest.nix")
+    ];
+
+  boot.initrd.availableKernelModules = [ "xhci_pci" "virtio_pci" ];
+  boot.initrd.kernelModules = [ ];
+  boot.kernelModules = [ ];
+  boot.extraModulePackages = [ ];
+
+  fileSystems."/" =
+    { device = "zroot/root/nixos";
+      fsType = "zfs";
+    };
+
+  fileSystems."/home" =
+    { device = "zroot/root/home";
+      fsType = "zfs";
+    };
+
+  fileSystems."/boot" =
+    { device = "/dev/disk/by-uuid/E6D6-572B";
+      fsType = "vfat";
+    };
+
+  swapDevices = [ ];
+}

deployment.nix

@@ -163,4 +163,13 @@ in
         permissions = "0600";
       };
     };
+
+  build04 =
+    { resources, ... }:
+    {
+      imports = [
+        ./build04/configuration.nix
+      ];
+      deployment.targetHost = "158.101.223.107";
+    };
 }

nix/overlays.nix

@@ -5,7 +5,7 @@ let
       niv;
     nixopsUnstable = (pkgs.nixopsUnstable.withPlugins(ps: []));
 
-    terraform = pkgs.terraform.withPlugins (
+    terraform = pkgs.terraform_0_12.withPlugins (
       p: [
         p.cloudflare
         p.null

roles/kexec.nix

@@ -6,6 +6,9 @@
     ./users.nix
     ./sshd.nix
   ];
+
+  # ttyAMA0 is consoles on aarch64
+  boot.kernelParams = [ "console=ttyS0,115200n8" "console=ttyAMA0,115200n8" "console=tty0" ];
 }
 
 # Hetzner bootstrap from rescue system

terraform/cloudflare_nix-community_org.tf

@@ -44,6 +44,20 @@ resource "cloudflare_record" "nix-community-org-build03-AAAA" {
   type    = "AAAA"
 }
 
+resource "cloudflare_record" "nix-community-org-build04-A" {
+  zone_id = local.nix_community_org_zone_id
+  name    = "build04"
+  value   = "158.101.223.107"
+  type    = "A"
+}
+
+resource "cloudflare_record" "nix-community-org-build04-AAAA" {
+  zone_id = local.nix_community_org_zone_id
+  name    = "build04"
+  value   = "2603:c022:c001:b500:1::"
+  type    = "AAAA"
+}
+
 # Used by nix-community/nixpkgs-docker
 resource "cloudflare_record" "nix-community-org-docker-CNAME" {
   zone_id = local.nix_community_org_zone_id