infrastructure

commit 8e5abd11968e3af0cf258d1aeb39982212a407be
parent 0959fb05c703735262acbbedc7077bf863575818
Author: Silas Brack <silasbrack@gmail.com>
Date:   Fri, 12 Jun 2026 21:19:26 +0200

feat: move simple-web-app DB to Hetzner volume for durability

DB now at /mnt/volume-hel1-1/simple-web-app/data/app.db instead
of the root disk. Volume survives OS reinstalls.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

Diffstat:
M
modules/simple-web-app.nix
 | 
9
++++++++-

1 file changed, 8 insertions(+), 1 deletion(-)
diff --git a/modules/simple-web-app.nix b/modules/simple-web-app.nix
@@ -30,7 +30,7 @@ in
 
       dbPath = mkOption {
         type = types.str;
-        default = "/var/lib/simple-web-app/data/app.db";
+        default = "/mnt/volume-hel1-1/simple-web-app/data/app.db";
         description = ''
           Path to the SQLite database file.
         '';
@@ -58,6 +58,13 @@ in
         DynamicUser = true;
         StateDirectory = "simple-web-app";
         StateDirectoryMode = "0755";
+        ReadWritePaths = [ "/mnt/volume-hel1-1/simple-web-app" ];
+        ExecStartPre = let
+          setupScript = pkgs.writeShellScript "simple-web-app-setup" ''
+            mkdir -p /mnt/volume-hel1-1/simple-web-app/data
+            chmod 755 /mnt/volume-hel1-1/simple-web-app/data
+          '';
+        in "+${setupScript}";
       };
       environment = {
         PORT = builtins.toString cfg.port;