base: configure sops

base/default.nix

@@ -10,11 +10,12 @@
     (fp /users)
     (fp /modules/snakeoil-certs.nix)
 
+    ./flake-input-exporter.nix
     ./networking.nix
     ./nix.nix
-    ./vm.nix
-    ./flake-input-exporter.nix
     ./programs.nix
+    ./sops.nix
+    ./vm.nix
 
     ./services/acme.nix
     ./services/auto-upgrade.nix

base/sops.nix

@@ -0,0 +1,12 @@
+{ config, fp, lib, ... }:
+{
+  sops.defaultSopsFile = let
+    secretsFilePath = fp /secrets/${config.networking.hostName}/${config.networking.hostName}.yaml;
+  in lib.mkIf (builtins.pathExists secretsFilePath) secretsFilePath;
+
+  sops.age = lib.mkIf (config.sops.defaultSopsFile != null) {
+    sshKeyPaths = lib.mkDefault [ "/etc/ssh/ssh_host_ed25519_key" ];
+    keyFile = "/var/lib/sops-nix/key.txt";
+    generateKey = true;
+  };
+}

hosts/bakke/configuration.nix

@@ -6,11 +6,6 @@
       ./filesystems.nix
     ];
 
-  sops.defaultSopsFile = ../../secrets/bakke/bakke.yaml;
-  sops.age.sshKeyPaths = [ "/etc/ssh/ssh_host_ed25519_key" ];
-  sops.age.keyFile = "/var/lib/sops-nix/key.txt";
-  sops.age.generateKey = true;
-
   networking.hostId = "99609ffc";
   systemd.network.networks."30-enp2s0" = values.defaultNetworkConfig // {
     matchConfig.Name = "enp2s0";

hosts/bekkalokk/configuration.nix

@@ -19,11 +19,6 @@
     ./services/qotd
   ];
 
-  sops.defaultSopsFile = fp /secrets/bekkalokk/bekkalokk.yaml;
-  sops.age.sshKeyPaths = [ "/etc/ssh/ssh_host_ed25519_key" ];
-  sops.age.keyFile = "/var/lib/sops-nix/key.txt";
-  sops.age.generateKey = true;
-
   systemd.network.networks."30-enp2s0" = values.defaultNetworkConfig // {
     matchConfig.Name = "enp2s0";
     address = with values.hosts.bekkalokk; [ (ipv4 + "/25") (ipv6 + "/64") ];

hosts/bicep/configuration.nix

@@ -15,11 +15,6 @@
     ./services/matrix
   ];
 
-  sops.defaultSopsFile = fp /secrets/bicep/bicep.yaml;
-  sops.age.sshKeyPaths = [ "/etc/ssh/ssh_host_ed25519_key" ];
-  sops.age.keyFile = "/var/lib/sops-nix/key.txt";
-  sops.age.generateKey = true;
-
   #systemd.network.networks."30-enp6s0f0" = values.defaultNetworkConfig // {
   systemd.network.networks."30-ens18" = values.defaultNetworkConfig // {
     #matchConfig.Name = "enp6s0f0";

hosts/ildkule/configuration.nix

@@ -10,11 +10,6 @@
       ./services/journald-remote.nix
     ];
 
-  sops.defaultSopsFile = fp /secrets/ildkule/ildkule.yaml;
-  sops.age.sshKeyPaths = [ "/etc/ssh/ssh_host_ed25519_key" ];
-  sops.age.keyFile = "/var/lib/sops-nix/key.txt";
-  sops.age.generateKey = true;
-
   boot.loader.systemd-boot.enable = false;
   boot.loader.grub.device = "/dev/vda";
   boot.tmp.cleanOnBoot = true;

hosts/kommode/configuration.nix

@@ -9,11 +9,6 @@
     ./services/nginx.nix
   ];
 
-  sops.defaultSopsFile = fp /secrets/kommode/kommode.yaml;
-  sops.age.sshKeyPaths = [ "/etc/ssh/ssh_host_ed25519_key" ];
-  sops.age.keyFile = "/var/lib/sops-nix/key.txt";
-  sops.age.generateKey = true;
-
   systemd.network.networks."30-ens18" = values.defaultNetworkConfig // {
     matchConfig.Name = "ens18";
     address = with values.hosts.kommode; [ (ipv4 + "/25") (ipv6 + "/64") ];

hosts/lupine/configuration.nix

@@ -9,9 +9,6 @@
   ];
 
   sops.defaultSopsFile = fp /secrets/lupine/lupine.yaml;
-  sops.age.sshKeyPaths = [ "/etc/ssh/ssh_host_ed25519_key" ];
-  sops.age.keyFile = "/var/lib/sops-nix/key.txt";
-  sops.age.generateKey = true;
 
   systemd.network.networks."30-enp0s31f6" = values.defaultNetworkConfig // {
     matchConfig.Name = "enp0s31f6";

hosts/shark/configuration.nix

@@ -6,11 +6,6 @@
       (fp /base)
     ];
 
-  sops.defaultSopsFile = fp /secrets/shark/shark.yaml;
-  sops.age.sshKeyPaths = [ "/etc/ssh/ssh_host_ed25519_key" ];
-  sops.age.keyFile = "/var/lib/sops-nix/key.txt";
-  sops.age.generateKey = true;
-
   systemd.network.networks."30-ens18" = values.defaultNetworkConfig // {
     matchConfig.Name = "ens18";
     address = with values.hosts.shark; [ (ipv4 + "/25") (ipv6 + "/64") ];

hosts/skrott/configuration.nix

@@ -22,11 +22,6 @@
 
   # TODO: can we reduce further?
 
-  sops.defaultSopsFile = fp /secrets/skrott/skrott.yaml;
-  sops.age.sshKeyPaths = [ "/etc/ssh/ssh_host_ed25519_key" ];
-  sops.age.keyFile = "/var/lib/sops-nix/key.txt";
-  sops.age.generateKey = true;
-
   sops.secrets = {
     "dibbler/postgresql/url" = {
       owner = "dibbler";

hosts/temmie/configuration.nix

@@ -8,11 +8,6 @@
       ./services/nfs-mounts.nix
     ];
 
-  # sops.defaultSopsFile = fp /secrets/shark/shark.yaml;
-  # sops.age.sshKeyPaths = [ "/etc/ssh/ssh_host_ed25519_key" ];
-  # sops.age.keyFile = "/var/lib/sops-nix/key.txt";
-  # sops.age.generateKey = true;
-
   systemd.network.networks."30-ens18" = values.defaultNetworkConfig // {
     matchConfig.Name = "ens18";
     address = with values.hosts.temmie; [ (ipv4 + "/25") (ipv6 + "/64") ];

hosts/ustetind/configuration.nix

@@ -7,11 +7,6 @@
     ./services/gitea-runners.nix
   ];
 
-  sops.defaultSopsFile = fp /secrets/ustetind/ustetind.yaml;
-  sops.age.sshKeyPaths = [ "/etc/ssh/ssh_host_ed25519_key" ];
-  sops.age.keyFile = "/var/lib/sops-nix/key.txt";
-  sops.age.generateKey = true;
-
   boot.loader.systemd-boot.enable = false;
 
   networking.useHostResolvConf = lib.mkForce false;

hosts/wenche/configuration.nix

@@ -14,11 +14,6 @@
     "armv7l-linux"
   ];
 
-  sops.defaultSopsFile = fp /secrets/wenche/wenche.yaml;
-  sops.age.sshKeyPaths = [ "/etc/ssh/ssh_host_ed25519_key" ];
-  sops.age.keyFile = "/var/lib/sops-nix/key.txt";
-  sops.age.generateKey = true;
-
   boot.loader.systemd-boot.enable = false;
   boot.loader.grub.device = "/dev/sda";