Add support for telemetry endpoint

To test:
1. Create a RequestBin - https://requestbin.io/
2. Run code-server with `CS_TELEMETRY_URL` set: 
  i.e. `CS_TELEMETRY_URL="https://requestbin.io/1ebub9z1" ./code-server-4.7.0-macos-amd64/bin/code-server`
3. Load code-server in browser an do things (i.e. open a file)
4. Refresh RequestBin and you should see logs

Index: code-server/lib/vscode/src/vs/server/node/serverServices.ts
===================================================================
--- code-server.orig/lib/vscode/src/vs/server/node/serverServices.ts
+++ code-server/lib/vscode/src/vs/server/node/serverServices.ts
@@ -71,6 +71,7 @@ import { IExtensionsScannerService } fro
 import { ExtensionsScannerService } from 'vs/server/node/extensionsScannerService';
 import { ExtensionsProfileScannerService, IExtensionsProfileScannerService } from 'vs/platform/extensionManagement/common/extensionsProfileScannerService';
 import { IUserDataProfilesService, UserDataProfilesService } from 'vs/platform/userDataProfile/common/userDataProfile';
+import { TelemetryClient } from "vs/server/node/telemetryClient";
 import { NullPolicyService } from 'vs/platform/policy/common/policy';
 import { OneDataSystemAppender } from 'vs/platform/telemetry/node/1dsAppender';
 
@@ -133,10 +134,13 @@ export async function setupServerService
 	const machineId = await getMachineId();
 	const isInternal = isInternalTelemetry(productService, configurationService);
 	if (supportsTelemetry(productService, environmentService)) {
-		if (productService.aiConfig && productService.aiConfig.ariaKey) {
+		const telemetryEndpoint = process.env.CS_TELEMETRY_URL || "https://v1.telemetry.coder.com/track";
+		if (telemetryEndpoint) {
+			oneDsAppender = new OneDataSystemAppender(false, eventPrefix, null, () => new TelemetryClient(telemetryEndpoint));
+		} else if (productService.aiConfig && productService.aiConfig.ariaKey) {
 			oneDsAppender = new OneDataSystemAppender(isInternal, eventPrefix, null, productService.aiConfig.ariaKey);
-			disposables.add(toDisposable(() => oneDsAppender?.flush())); // Ensure the AI appender is disposed so that it flushes remaining data
 		}
+		disposables.add(toDisposable(() => oneDsAppender?.flush())); // Ensure the AI appender is disposed so that it flushes remaining data
 
 		const config: ITelemetryServiceConfig = {
 			appenders: [oneDsAppender],
Index: code-server/lib/vscode/src/vs/server/node/telemetryClient.ts
===================================================================
--- /dev/null
+++ code-server/lib/vscode/src/vs/server/node/telemetryClient.ts
@@ -0,0 +1,49 @@
+import { AppInsightsCore, IExtendedTelemetryItem, ITelemetryItem } from '@microsoft/1ds-core-js';
+import * as https from 'https';
+import * as http from 'http';
+import * as os from 'os';
+
+export class TelemetryClient extends AppInsightsCore {
+	public constructor(private readonly endpoint: string) {
+		super();
+	}
+
+	public override track(item: IExtendedTelemetryItem | ITelemetryItem): void {
+		const options = item.baseData || {}
+		if (!options.properties) {
+			options.properties = {};
+		}
+		if (!options.measurements) {
+			options.measurements = {};
+		}
+
+		try {
+			const cpus = os.cpus();
+			options.measurements.cores = cpus.length;
+			options.properties['common.cpuModel'] = cpus[0].model;
+		} catch (error) {}
+
+		try {
+			options.measurements.memoryFree = os.freemem();
+			options.measurements.memoryTotal = os.totalmem();
+		} catch (error) {}
+
+		try {
+			options.properties['common.shell'] = os.userInfo().shell;
+			options.properties['common.release'] = os.release();
+			options.properties['common.arch'] = os.arch();
+		} catch (error) {}
+
+		try {
+			const request = (/^http:/.test(this.endpoint) ? http : https).request(this.endpoint, {
+				method: 'POST',
+				headers: {
+					'Content-Type': 'application/json',
+				},
+			});
+			request.on('error', () => { /* We don't care. */ });
+			request.write(JSON.stringify(options));
+			request.end();
+		} catch (error) {}
+	}
+}
Index: code-server/lib/vscode/src/vs/server/node/webClientServer.ts
===================================================================
--- code-server.orig/lib/vscode/src/vs/server/node/webClientServer.ts
+++ code-server/lib/vscode/src/vs/server/node/webClientServer.ts
@@ -324,6 +324,7 @@ export class WebClientServer {
 					scope: vscodeBase + '/',
 					path: base + '/_static/out/browser/serviceWorker.js',
 				},
+				enableTelemetry: this._productService.enableTelemetry,
 				embedderIdentifier: 'server-distro',
 				extensionsGallery: this._productService.extensionsGallery,
 			},