Adding mkip.

2025-11-28 16:12:13 -06:00 · 2025-11-28 16:12:13 -06:00 · 551b401efa
commit 551b401efa
parent 633a9c1856
2 changed files with 571 additions and 0 deletions
--- a/flake.nix
+++ b/flake.nix
@ -0,0 +1,139 @@
+{
+  description = "Metanix static flake: meta.nix → addressing, deploy-rs, disko, nixos-anywhere";
+
+  inputs = {
+    nixpkgs.url = "github:NixOS/nixpkgs/nixos-24.05";
+    deploy-rs.url = "github:serokell/deploy-rs";
+    disko.url = "github:nix-community/disko";
+    nixos-anywhere.url = "github:numtide/nixos-anywhere";
+  };
+
+  outputs = { self, nixpkgs, deploy-rs, disko, nixos-anywhere, ... }:
+    let
+      # Default architecture if meta.nix doesn't say otherwise
+      system = "x86_64-linux";
+
+      pkgs = import nixpkgs {
+        inherit system;
+      };
+
+      lib = pkgs.lib;
+
+      # Your mkIp / mkHostsFromSpec / mkSubnetsFromSpec, etc.
+      # This expects: lib/addressing/default.nix
+      addressing = import ./lib/addressing {
+        inherit lib;
+      };
+
+      # User-provided world model.
+      meta = import ./meta.nix;
+
+      # Uses your rewritten mkNetworkFromSpec that understands meta.nix shape.
+      network = addressing.mkNetworkFromSpec meta;
+
+      # Optional: meta.systems = { hostName = { system = "..."; modules = [ ... ]; ... }; ...; }
+      systemsFromMeta = meta.systems or { };
+    in
+    {
+      #######################
+      # Library-style exports
+      #######################
+      lib = {
+        metanix = {
+          inherit meta network addressing;
+        };
+      };
+
+      #############################
+      # Per-host NixOS configs
+      #
+      # Driven by meta.systems if present. Shape example:
+      # meta.systems = {
+      #   deimos = {
+      #     system = "x86_64-linux";
+      #     modules = [ ./hosts/deimos.nix ];
+      #     diskoConfig = ./disko/deimos.nix;  # optional
+      #     deployHost = "deimos.kasear.net";  # optional
+      #     deployUser = "root";               # optional
+      #   };
+      # };
+      #############################
+      nixosConfigurations =
+        lib.mapAttrs
+          (name: sysCfg:
+            let
+              systemForHost = sysCfg.system or system;
+
+              pkgsForHost = import nixpkgs {
+                inherit systemForHost;
+              };
+
+              hostLib = pkgsForHost.lib;
+
+              # Optional disko module wiring if sysCfg.diskoConfig exists.
+              diskoModule =
+                if sysCfg ? diskoConfig then
+                  { imports = [ disko.nixosModules.disko sysCfg.diskoConfig ]; }
+                else
+                  { };
+            in
+            hostLib.nixosSystem {
+              system = systemForHost;
+              modules =
+                (sysCfg.modules or [ ]) ++ [
+                  diskoModule
+                  ({ ... }: {
+                    _module.args = {
+                      inherit meta network addressing;
+                      hostName = name;
+                    };
+                  })
+                ];
+            })
+          systemsFromMeta;
+
+      ########################################
+      # deploy-rs integration
+      #
+      # Builds deploy.nodes using meta.systems + addressing.
+      ########################################
+      deploy = {
+        nodes =
+          lib.mapAttrs
+            (name: sysCfg:
+              let
+                hasNetworkHost = builtins.hasAttr name network.hosts;
+                hostInfo = if hasNetworkHost then network.hosts.${name} else null;
+
+                defaultHostname =
+                  if hasNetworkHost then hostInfo.fqdn else "${name}.${meta.domain}";
+              in
+              {
+                hostname = sysCfg.deployHost or defaultHostname;
+
+                profiles.system = {
+                  user = sysCfg.deployUser or "root";
+                  path =
+                    deploy-rs.lib.${system}.activate.nixos
+                      self.nixosConfigurations.${name};
+                };
+              })
+            systemsFromMeta;
+      };
+
+      ########################################
+      # deploy-rs sanity checks
+      ########################################
+      checks.${system}.deploy =
+        deploy-rs.lib.${system}.deployChecks self.deploy;
+
+      ########################################
+      # nixos-anywhere convenience app
+      ########################################
+      apps.${system}.nixos-anywhere = {
+        type = "app";
+        program =
+          "${nixos-anywhere.packages.${system}.nixos-anywhere}/bin/nixos-anywhere";
+      };
+    };
+}