Renderer file logging transport

Add file logging to renderer, writing separate log files for renderer main frame and each cluster frame.

Related to lensapp/support-lens-extension#118

Signed-off-by: Sami Tiilikainen <97873007+samitiilikainen@users.noreply.github.com>

packages/core/src/renderer/logger/file-transport.injectable.ts

@@ -0,0 +1,44 @@
+/**
+ * Copyright (c) OpenLens Authors. All rights reserved.
+ * Licensed under MIT License. See LICENSE in root directory for more information.
+ */
+import { getInjectable } from "@ogre-tools/injectable";
+import { transports } from "winston";
+import directoryForLogsInjectable from "../../common/app-paths/directory-for-logs.injectable";
+import { loggerTransportInjectionToken } from "../../common/logger/transports";
+import windowLocationInjectable from "../../common/k8s-api/window-location.injectable";
+import currentlyInClusterFrameInjectable from "../routes/currently-in-cluster-frame.injectable";
+import { getClusterIdFromHost } from "../utils";
+
+const rendererFileLoggerTransportInjectable = getInjectable({
+  id: "renderer-file-logger-transport",
+  instantiate: (di) => {
+    let frameId: string;
+
+    const currentlyInClusterFrame = di.inject(
+      currentlyInClusterFrameInjectable,
+    );
+
+    if (currentlyInClusterFrame) {
+      const { host } = di.inject(windowLocationInjectable);
+      const clusterId = getClusterIdFromHost(host);
+
+      frameId = clusterId ? `cluster-${clusterId}` : "cluster";
+    } else {
+      frameId = "main";
+    }
+
+    return new transports.File({
+      handleExceptions: false,
+      level: "debug",
+      filename: `lens-renderer-${frameId}.log`,
+      dirname: di.inject(directoryForLogsInjectable),
+      maxsize: 1024 * 1024,
+      maxFiles: 0,
+      tailable: true,
+    });
+  },
+  injectionToken: loggerTransportInjectionToken,
+});
+
+export default rendererFileLoggerTransportInjectable;