From 361f5ef709be30abfa261ae8cb5a73bfd37df405 Mon Sep 17 00:00:00 2001
From: yuri <yuri@nekover.se>
Date: Thu, 27 Jul 2023 21:59:24 +0200
Subject: [PATCH] Generate hosts for hydra

---
 flake.lock                     |  8 +++----
 flake.nix                      | 44 ++++++++++++++++++++++++----------
 helper.nix                     | 25 +++++++++++++++++++
 hosts/hydra/default.nix        |  1 -
 hosts/nixos-coturn/default.nix |  1 -
 5 files changed, 61 insertions(+), 18 deletions(-)
 create mode 100644 helper.nix

diff --git a/flake.lock b/flake.lock
index f4f6d2d..ad39d0d 100644
--- a/flake.lock
+++ b/flake.lock
@@ -38,16 +38,16 @@
     },
     "nixpkgs": {
       "locked": {
-        "lastModified": 1689679375,
-        "narHash": "sha256-LHUC52WvyVDi9PwyL1QCpaxYWBqp4ir4iL6zgOkmcb8=",
+        "lastModified": 1690538549,
+        "narHash": "sha256-FfScFHxidupVGPw9BrQOHz/SoFLRjoNmVC5ymS+g8xU=",
         "owner": "NixOS",
         "repo": "nixpkgs",
-        "rev": "684c17c429c42515bafb3ad775d2a710947f3d67",
+        "rev": "de5ca86149b0c4ff8bf69782cd25896fff0254e1",
         "type": "github"
       },
       "original": {
         "owner": "NixOS",
-        "ref": "nixos-unstable",
+        "ref": "nixos-unstable-small",
         "repo": "nixpkgs",
         "type": "github"
       }
diff --git a/flake.nix b/flake.nix
index 4b4fdc0..c8ae23e 100644
--- a/flake.nix
+++ b/flake.nix
@@ -1,13 +1,15 @@
 {
   inputs = {
-    nixpkgs.url = "github:NixOS/nixpkgs/nixos-unstable";
+    nixpkgs.url = "github:NixOS/nixpkgs/nixos-unstable-small";
     nixos-generators = {
       url = "github:nix-community/nixos-generators";
       inputs.nixpkgs.follows = "nixpkgs";
     };
   };
 
-  outputs = { self, nixpkgs, nixos-generators, ... }: {
+  outputs = { self, nixpkgs, nixos-generators, ... }@inputs: let
+    helper = (import ./helper.nix) inputs; 
+  in {
     hosts = {
       hydra = {
         site = "vs";
@@ -32,7 +34,7 @@
       };
     };
 
-    generateColmenaHost = name: host : {
+    generateColmenaHost = name: host: {
       deployment = {
         targetHost = "${name}.${host.site}.grzb.de";
         targetUser = "colmena-deploy";
@@ -43,7 +45,7 @@
         ./configuration/proxmox-vm
         ./configuration/proxmox-vm/hardware-configuration.nix
         ./hosts/${name}
-      ];
+      ] ++ nixpkgs.lib.optional (builtins.pathExists ./hosts/${name}/secrets.nix) ./hosts/${name}/secrets.nix;
     };
 
     colmena = {
@@ -54,18 +56,35 @@
       };
     } // builtins.mapAttrs (self.generateColmenaHost) self.hosts;
 
-    hydraJobs = {
-      nixConfigurations.nitter = let system = "x86_64-linux";
-      in nixpkgs.lib.nixosSystem {
-        inherit system;
+    nixosConfigurations = nixpkgs.lib.mapAttrs (name: config: let
+      nodeNixpkgs = self.outputs.colmena.meta.nodeNixpkgs.${name} or self.outputs.colmena.meta.nixpkgs;
+      nodeNixos = import (nodeNixpkgs.path + "/nixos/lib/eval-config.nix");
+      in nodeNixos {
         modules = [
-          ./configuration/common
-          ./configuration/proxmox-vm
-          ./hosts/nitter
+          #self.outputs.colmena.defaults
+          config
+          #inputs.colmena.nixosModules.deploymentOptions
+          {
+            _module.args.name = nixpkgs.lib.mkForce name;
+            _module.args.nodes = self.outputs.nixosConfigurations;
+            #nixpkgs.overlays = nixpkgs.lib.attrValues self.overlays;
+          }
         ];
-      };
+        inherit (nodeNixpkgs) system;
+      }
+    ) (builtins.removeAttrs self.outputs.colmena ["meta" "defaults"]);
+
+    hydraJobs = {
+      nixosConfigurations = nixpkgs.lib.mapAttrs (_: config: config.config.system.build.toplevel) self.outputs.nixosConfigurations;
     };
 
+    /*
+    nixosConfigurations = (builtins.mapAttrs (helper.mapToNixosConfigurations) self.hosts);
+    hydraJobs = {
+      nixConfigurations = helper.buildHosts self.nixosConfigurations;
+    };
+    */
+
     # Generate a base VM image for Proxmox with `nix build .#base-proxmox`
     packages.x86_64-linux = {
       base-proxmox = nixos-generators.nixosGenerate {
@@ -78,5 +97,6 @@
         format = "proxmox";
       };
     };
+
   };
 }
diff --git a/helper.nix b/helper.nix
new file mode 100644
index 0000000..07a3e8e
--- /dev/null
+++ b/helper.nix
@@ -0,0 +1,25 @@
+{ nixpkgs, ... }@inputs:
+rec {
+  generateNixosSystem = name: {
+    system ? "x86_64-linux",
+    group ? null,
+    modules ? [],
+    site
+  }: let
+    localNixpkgs = nixpkgs.lib.attrByPath [ "nixpkgs-${name}" ] nixpkgs inputs;
+  in localNixpkgs.lib.nixosSystem {
+    system = system;
+    modules = modules ++ [
+      ./configuration/common
+      ./configuration/proxmox-vm
+      ./configuration/proxmox-vm/hardware-configuration.nix
+      ./hosts/${name}
+    ];
+  };
+
+  mapToNixosConfigurations = name: host: generateNixosSystem name host;
+
+  filterUnderscore = hosts: (nixpkgs.lib.filterAttrs (name: host: (builtins.substring 0 1 name) != "_") hosts);
+
+  buildHosts = hosts: builtins.mapAttrs (name: host: host.config.system.build.toplevel) (filterUnderscore hosts);
+}
diff --git a/hosts/hydra/default.nix b/hosts/hydra/default.nix
index c33a964..aeffee1 100644
--- a/hosts/hydra/default.nix
+++ b/hosts/hydra/default.nix
@@ -2,7 +2,6 @@
 {
   imports = [
     ./configuration.nix
-    ./secrets.nix
     ./hydra.nix
     ./nix-serve.nix
     ./nginx.nix
diff --git a/hosts/nixos-coturn/default.nix b/hosts/nixos-coturn/default.nix
index 63c719c..1036572 100644
--- a/hosts/nixos-coturn/default.nix
+++ b/hosts/nixos-coturn/default.nix
@@ -2,7 +2,6 @@
 {
   imports = [
     ./configuration.nix
-    ./secrets.nix
     ./coturn.nix
   ];
 }