From 6422669548ccb6ef9cf2c955d45ade28a8671510 Mon Sep 17 00:00:00 2001
From: Petru Paler <petru@paler.net>
Date: Sun, 2 Jul 2023 06:48:41 +0100
Subject: [PATCH] Install seaweedfs from unstable on compute nodes.

---
 flake.lock                    | 19 ++++++++++++++++++-
 flake.nix                     | 13 +++++++++++--
 hosts/common/compute-node.nix |  1 +
 hosts/common/seaweedfs.nix    | 14 ++++++++++++++
 4 files changed, 44 insertions(+), 3 deletions(-)
 create mode 100644 hosts/common/seaweedfs.nix

diff --git a/flake.lock b/flake.lock
index 6d4ae43..d011125 100644
--- a/flake.lock
+++ b/flake.lock
@@ -69,11 +69,28 @@
         "type": "github"
       }
     },
+    "nixpkgs-unstable": {
+      "locked": {
+        "lastModified": 1688049487,
+        "narHash": "sha256-100g4iaKC9MalDjUW9iN6Jl/OocTDtXdeAj7pEGIRh4=",
+        "owner": "NixOS",
+        "repo": "nixpkgs",
+        "rev": "4bc72cae107788bf3f24f30db2e2f685c9298dc9",
+        "type": "github"
+      },
+      "original": {
+        "owner": "NixOS",
+        "ref": "nixos-unstable",
+        "repo": "nixpkgs",
+        "type": "github"
+      }
+    },
     "root": {
       "inputs": {
         "deploy-rs": "deploy-rs",
         "impermanence": "impermanence",
-        "nixpkgs": "nixpkgs"
+        "nixpkgs": "nixpkgs",
+        "nixpkgs-unstable": "nixpkgs-unstable"
       }
     },
     "utils": {
diff --git a/flake.nix b/flake.nix
index b397143..c24ca56 100644
--- a/flake.nix
+++ b/flake.nix
@@ -6,13 +6,22 @@
     deploy-rs.inputs.nixpkgs.follows = "nixpkgs";
     impermanence.url = "github:nix-community/impermanence";
     nixpkgs.url = "github:NixOS/nixpkgs/nixos-23.05";
+    nixpkgs-unstable.url = "github:NixOS/nixpkgs/nixos-unstable";
   };
 
-  outputs = { self, nixpkgs, deploy-rs, ... }@inputs:
+  outputs = { self, nixpkgs, nixpkgs-unstable, deploy-rs, ... }@inputs:
     let
       inherit (self);
+      system = "x86_64-linux";
+
+      overlay-unstable = final: prev: {
+        unstable = nixpkgs-unstable.legacyPackages.${prev.system};
+      };
+
       mkNixos = modules: nixpkgs.lib.nixosSystem {
-        inherit modules;
+        modules = [
+          ({ config, pkgs, ... }: { nixpkgs.overlays = [ overlay-unstable ]; })
+        ] ++ modules;
         specialArgs = { inherit inputs self; };
       };
     in {
diff --git a/hosts/common/compute-node.nix b/hosts/common/compute-node.nix
index e804b15..34566d8 100644
--- a/hosts/common/compute-node.nix
+++ b/hosts/common/compute-node.nix
@@ -3,6 +3,7 @@
   imports = [
     ./impermanence.nix
     ./nomad.nix
+    ./seaweedfs.nix
     ./sshd.nix
     ./user-ppetru.nix
     ./unattended-encryption.nix
diff --git a/hosts/common/seaweedfs.nix b/hosts/common/seaweedfs.nix
new file mode 100644
index 0000000..8ba32b2
--- /dev/null
+++ b/hosts/common/seaweedfs.nix
@@ -0,0 +1,14 @@
+{ pkgs, ... }:
+{
+  environment.persistence."/persist".directories = [
+  ];
+
+  environment.systemPackages = [
+    pkgs.unstable.seaweedfs
+  ];
+
+  networking.firewall = {
+    allowedTCPPorts = [ ];
+    allowedUDPPorts = [ ];
+  };
+}