WIP: Add sops

.sops.yaml

@@ -0,0 +1,7 @@
+keys:
+  - &tlater 535B61015823443941C744DD12264F6BBDFABA89
+
+creation_rules:
+  - key_groups:
+      - pgp:
+          - *tlater

configuration/default.nix

@@ -34,6 +34,16 @@
 
   time.timeZone = "Europe/London";
 
+  sops = {
+    gnupg = {
+      home = "/var/lib/sops";
+      sshKeyPaths = [ ];
+    };
+
+    defaultSopsFile = "/etc/sops/secrets.yaml";
+    validateSopsFiles = false;
+  };
+
   users.users.tlater = {
     isNormalUser = true;
     extraGroups = [ "wheel" ];

flake.lock

@@ -73,6 +73,7 @@
         "flake-utils": "flake-utils",
         "nixos-hardware": "nixos-hardware",
         "nixpkgs": "nixpkgs",
+        "sops-nix": "sops-nix",
         "tlaternet-templates": "tlaternet-templates",
         "tlaternet-webserver": "tlaternet-webserver"
       }
@@ -102,6 +103,26 @@
         "type": "github"
       }
     },
+    "sops-nix": {
+      "inputs": {
+        "nixpkgs": [
+          "nixpkgs"
+        ]
+      },
+      "locked": {
+        "lastModified": 1641374494,
+        "narHash": "sha256-a56G6Um43+0+n+yNYhRCh/mSvDdRVzQHSKcFaDEB9/8=",
+        "owner": "Mic92",
+        "repo": "sops-nix",
+        "rev": "7edb4b080023ef12f39262a3aa7aab31015a7a0e",
+        "type": "github"
+      },
+      "original": {
+        "owner": "Mic92",
+        "repo": "sops-nix",
+        "type": "github"
+      }
+    },
     "tlaternet-templates": {
       "inputs": {
         "flake-utils": [

flake.nix

@@ -5,6 +5,10 @@
     nixpkgs.url = "github:nixos/nixpkgs/nixos-21.11";
     nixos-hardware.url = "github:nixos/nixos-hardware/master";
     flake-utils.url = "github:numtide/flake-utils";
+    sops-nix = {
+      url = "github:Mic92/sops-nix";
+      inputs.nixpkgs.follows = "nixpkgs";
+    };
     tlaternet-webserver = {
       url = "git+https://gitea.tlater.net/tlaternet/tlaternet.git";
       inputs = {
@@ -21,8 +25,8 @@
     };
   };
 
-  outputs = { self, nixpkgs, nixos-hardware, flake-utils, tlaternet-webserver
-    , tlaternet-templates, ... }@inputs:
+  outputs = { self, nixpkgs, nixos-hardware, flake-utils, sops-nix
+    , tlaternet-webserver, tlaternet-templates, ... }@inputs:
     let
       overlays = [
         (final: prev: {
@@ -35,6 +39,7 @@
             local-lib = self.lib.${prev.system};
           };
         })
+        sops-nix.overlay
       ];
 
     in {
@@ -44,6 +49,8 @@
           inherit system;
 
           modules = [
+            sops-nix.nixosModules.sops
+
             ({ modulesPath, ... }: {
               imports = [ (modulesPath + "/profiles/headless.nix") ];
               nixpkgs.overlays = overlays;
@@ -61,6 +68,8 @@
           inherit system;
 
           modules = [
+            sops-nix.nixosModule
+
             ({ modulesPath, ... }: {
               imports = [ (modulesPath + "/profiles/headless.nix") ];
               nixpkgs.overlays = overlays;
@@ -78,6 +87,13 @@
               # can easily test locally with the VM.
               services.nginx.domain = lib.mkOverride 99 "localhost";
 
+              # Use a default password for the grafana instance for
+              # easy testing.
+              services.grafana.security = {
+                adminPassword = "insecure";
+                adminPasswordFile = lib.mkOverride 99 null;
+              };
+
               # # Set up VM settings to match real VPS
               # virtualisation.memorySize = 3941;
               # virtualisation.cores = 2;
@@ -94,6 +110,8 @@
               nixfmt
               git-lfs
 
+              sops-init-gpg-key
+
               # For the minecraft mod update script
               (python3.withPackages (pypkgs:
                 with pypkgs; [
@@ -107,6 +125,10 @@
                   # pyls-mypy
                 ]))
             ];
+
+            # nativeBuildInputs = [ sops-import-keys-hook ]; Breaks the shellHook somehow
+            sopsPGPKeyDirs = [ "./keys/hosts/" "./keys/users/" ];
+
             shellHook = ''
               export QEMU_OPTS="-m 3941 -smp 2 -curses"
               export QEMU_NET_OPTS="hostfwd=::3022-:2222,hostfwd=::3080-:80,hostfwd=::3443-:443,hostfwd=::3021-:2221,hostfwd=::25565-:25565"