build: generates vit-ss config file in container (#175)

Author: minikin

nix/vit-servicing-station/operables.nix

@@ -10,19 +10,54 @@
   package = cell.packages.vit-servicing-station-server;
 
   mkVitOperable = namespace: let
+    # Deployment artifacts, including block0
     artifacts' = artifacts."artifacts-${namespace}";
+
+    # Configuration file contents
+    config = l.toJSON {
+      tls = {
+        cert_file = null;
+        priv_key_file = null;
+      };
+      cors = {
+        max_age_secs = null;
+        allowed_origins = [
+          "https://${namespace}-servicing-station.vit.iohk.io"
+          "http://127.0.0.1"
+        ];
+      };
+      block0_path = "${artifacts'}/block0.bin";
+      enable_api_tokens = false;
+      log = {
+        log_level = "trace";
+      };
+      address = "0.0.0.0:8080";
+      service_version = "";
+    };
   in
     std.lib.ops.mkOperable {
       inherit package;
       runtimeInputs = [
         artifacts'
       ];
-      runtimeScript = std.lib.ops.mkOperableScript {
-        inherit package;
-        args = {
-          "--in-settings-file" = "/local/station-config.json";
+      runtimeScript = let
+        configFile =
+          nixpkgs.runCommand "vit-ss-config-${namespace}"
+          {
+            inherit config;
+            passAsFile = ["config"];
+          }
+          ''
+            cp $configPath $out
+          '';
+      in
+        std.lib.ops.mkOperableScript {
+          inherit package;
+          args = {
+            "--in-settings-file" = configFile;
+            "--service-version" = "3.4";
+          };
         };
-      };
     };
 in
   {}