infrastructure

commit 9cdec75ab2d0a587bd75a96027ada8e944de1245
parent 36ef9aad8df6492365e11146afee566cf1804e76
Author: Silas Brack <silasbrack@gmail.com>
Date:   Wed, 22 Apr 2026 12:12:20 +0200

feat: add Trailbase backend service for simple-web-app

- Add simple-web-app-trailbase systemd service
- Configure traildepot config copying on first start
- Set TRAILBASE_URL environment variable
- Make simple-web-app depend on trailbase service

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

Diffstat:
M
flake.lock
 | 
8
++++----
M
hosts/helios.nix
 | 
2
++
M
modules/simple-web-app.nix
 | 
50
++++++++++++++++++++++++++++++++++++++++++++++----

3 files changed, 52 insertions(+), 8 deletions(-)
diff --git a/flake.lock b/flake.lock
@@ -192,11 +192,11 @@
         "rust-overlay": "rust-overlay"
       },
       "locked": {
-        "lastModified": 1776801714,
-        "narHash": "sha256-Z2PZJHxljchSx2FMa3ztsw+aYYpkAD8S5zd6VXFAQiE=",
+        "lastModified": 1776838776,
+        "narHash": "sha256-0hSSUp9KqON9B09Xh2AgA8jCf428qk1Hw9NXNVG8a2E=",
         "ref": "refs/heads/main",
-        "rev": "a0d7b85a3154cf137f810b6f774e4324298b8fed",
-        "revCount": 41,
+        "rev": "60a5cecddce56036be2d0a950ae7ab819117a90c",
+        "revCount": 43,
         "type": "git",
         "url": "ssh://forgejo@git.fnarglebeast.com/silas/simple-web-app.git"
       },
diff --git a/hosts/helios.nix b/hosts/helios.nix
@@ -126,6 +126,8 @@
   services.simple-web-app = {
     enable = true;
     package = simple-web-app.packages.${pkgs.stdenv.hostPlatform.system}.default;
+    trailbasePackage = simple-web-app.packages.${pkgs.stdenv.hostPlatform.system}.trailbase;
+    traildepotPath = "${simple-web-app}/traildepot";
   };
 
   # Users
diff --git a/modules/simple-web-app.nix b/modules/simple-web-app.nix
@@ -19,6 +19,15 @@ in
         defaultText = lib.literalMD "`packages.default` from the simple-web-app flake";
       };
 
+      trailbasePackage = mkOption {
+        defaultText = lib.literalMD "`packages.trailbase` from the simple-web-app flake";
+      };
+
+      traildepotPath = mkOption {
+        type = types.path;
+        description = "Path to the traildepot configuration directory";
+      };
+
       port = mkOption {
         type = types.nullOr types.int;
         default = 8000;
@@ -27,25 +36,58 @@ in
           The port to bind simple web app server to.
         '';
       };
+
+      trailbasePort = mkOption {
+        type = types.int;
+        default = 4000;
+        description = ''
+          The port for Trailbase to listen on.
+        '';
+      };
     };
   };
 
   config = mkIf cfg.enable {
-    # Run service
+    # Run Trailbase backend service
+    systemd.services.simple-web-app-trailbase = {
+      wantedBy = [ "multi-user.target" ];
+      description = "Trailbase backend for simple web app.";
+      after = [ "network.target" ];
+      serviceConfig = {
+        Type = "simple";
+        ExecStart = "${cfg.trailbasePackage}/bin/trail run --address 127.0.0.1:${builtins.toString cfg.trailbasePort}";
+        WorkingDirectory = "/var/lib/simple-web-app-trailbase";
+        DynamicUser = true;
+        StateDirectory = "simple-web-app-trailbase";
+      };
+      preStart = ''
+        # Copy traildepot config if not present
+        if [ ! -f /var/lib/simple-web-app-trailbase/config.textproto ]; then
+          cp ${cfg.traildepotPath}/config.textproto /var/lib/simple-web-app-trailbase/
+        fi
+        # Copy migrations
+        if [ ! -d /var/lib/simple-web-app-trailbase/migrations ]; then
+          cp -r ${cfg.traildepotPath}/migrations /var/lib/simple-web-app-trailbase/
+        fi
+      '';
+    };
+
+    # Run simple web app service
     systemd.services.simple-web-app = {
       wantedBy = [ "multi-user.target" ];
       description = "Run simple web app.";
-      after = [ "network.target" ];
+      after = [ "network.target" "simple-web-app-trailbase.service" ];
+      requires = [ "simple-web-app-trailbase.service" ];
       serviceConfig = {
         Type = "simple";
         ExecStart = "${cfg.package}/bin/simple-web-app";
         DynamicUser = true;
-        StateDirectory = "simple-web-app"; # Ensures /var/lib/simple-web-app/
+        StateDirectory = "simple-web-app";
       };
       environment = {
         PORT = builtins.toString cfg.port;
         DEBUG = "false";
-        DATABASE_URL = "sqlite:///var/lib/simple-web-app/db.sqlite3";
+        TRAILBASE_URL = "http://127.0.0.1:${builtins.toString cfg.trailbasePort}";
         RUST_LOG = "info";
       };
     };