feat: documents sites module, and adds penfield

hosts/lab/sites.nix

@@ -1,6 +1,21 @@
+# services.site.<name> options:
+#
+#   domain              — primary domain (required)
+#   repo                — git repository URL (required)
+#   port                — Node.js server port (required)
+#   redirectDomains     — domains that 301 to the primary domain (default: [])
+#   branch              — git branch to track (default: "main")
+#   packageManager      — "npm" or "pnpm" (default: "pnpm")
+#   entryPoint          — Node.js entry point relative to repo root (default: "dist/server/entry.mjs")
+#   environment         — env vars for the running server (default: {})
+#   buildEnvironment    — env vars for building (default: {})
+#   dataDir             — base directory for repo and data (default: /srv/<name>)
+#   readWritePaths      — paths the server can write to at runtime (default: [])
+#   afterServices       — systemd units to wait for before building (default: ["forgejo.service"])
+
 { ... }:
 let
-  websiteServiceDir = "/srv/website";
+  websiteData = "/srv/website/data";
 in
 {
   services.site.website = {
@@ -9,15 +24,19 @@ in
     repo = "https://git.ily.rs/lew/website";
     branch = "master";
     port = 4322;
-    packageManager = "pnpm";
-    dataDir = websiteServiceDir;
     environment = {
-      ASTRO_DB_REMOTE_URL = "file:${websiteServiceDir}/data/guestbook.db";
+      ASTRO_DB_REMOTE_URL = "file:${websiteData}/guestbook.db";
     };
     buildEnvironment = {
-      ASTRO_DB_REMOTE_URL = "file:${websiteServiceDir}/data/guestbook.db";
+      ASTRO_DB_REMOTE_URL = "file:${websiteData}/guestbook.db";
     };
-    readWritePaths = [ "${websiteServiceDir}/data" ];
+    readWritePaths = [ websiteData ];
-    afterServices = [ "forgejo.service" ];
+  };
+
+  services.site.penfield = {
+    domain = "penfield2.ily.rs";
+    redirectDomains = [ "penfield.wynne.rs" ];
+    repo = "https://git.ily.rs/lew/penfield";
+    port = 4324;
   };
 }

modules/site.nix

@@ -62,12 +62,12 @@ let
       readWritePaths = mkOption {
         type = types.listOf types.str;
         default = [];
-        description = "Extra paths the server can write to at runtime.";
+        description = "Paths the server can write to at runtime.";
       };
 
       afterServices = mkOption {
         type = types.listOf types.str;
-        default = [];
+        default = [ "forgejo.service" ];
         description = "Systemd units to wait for before building.";
       };
     };