make script stderr print into relay logs

scripts/docker-policy/cs-policy-daemon.js

@@ -12,13 +12,14 @@ const rl = readline.createInterface({
   terminal: false
 });
 
-// Log that script started
+// Log that script started - to both file and stderr
 fs.appendFileSync(filePath, `${Date.now()}: Policy script started\n`);
+console.error('[cs-policy] Policy script started');
 
 // Process each line of input (policy events)
 rl.on('line', (line) => {
   try {
-    // Log that we received an event
+    // Log that we received an event (to file)
     fs.appendFileSync(filePath, `${Date.now()}: Received event: ${line.substring(0, 100)}...\n`);
 
     // Parse the policy event
@@ -27,7 +28,11 @@ rl.on('line', (line) => {
     // Log event details including access type
     const accessType = event.access_type || 'unknown';
     const eventKind = event.kind || 'unknown';
-    fs.appendFileSync(filePath, `${Date.now()}: Event ID: ${event.id || 'unknown'}, Kind: ${eventKind}, Access: ${accessType}\n`);
+    const eventId = event.id || 'unknown';
+
+    // Log to both file and stderr (stderr appears in relay log)
+    fs.appendFileSync(filePath, `${Date.now()}: Event ID: ${eventId}, Kind: ${eventKind}, Access: ${accessType}\n`);
+    console.error(`[cs-policy] Processing event ${eventId.substring(0, 8)}, kind: ${eventKind}, access: ${accessType}`);
 
     // Respond with "accept" to allow the event
     const response = {
@@ -38,8 +43,9 @@ rl.on('line', (line) => {
 
     console.log(JSON.stringify(response));
   } catch (err) {
-    // Log errors
+    // Log errors to both file and stderr
     fs.appendFileSync(filePath, `${Date.now()}: Error: ${err.message}\n`);
+    console.error(`[cs-policy] Error processing event: ${err.message}`);
 
     // Reject on error
     console.log(JSON.stringify({
@@ -51,4 +57,5 @@ rl.on('line', (line) => {
 
 rl.on('close', () => {
   fs.appendFileSync(filePath, `${Date.now()}: Policy script stopped\n`);
+  console.error('[cs-policy] Policy script stopped');
 });