docs: simplify Docker commands in README and enhance logging in WebRTC stats exporter

README.md

@@ -48,13 +48,11 @@ ufw allow 27107/tcp
 
 4. Start the Docker containers:
     ```sh
-    docker compose up \
-        --pull always \
-        --abort-on-container-exit
+    docker compose up --abort-on-container-exit
     ```
     or in detached mode:
     ```sh
-    docker compose up --pull always -d
+    docker compose up -d
     ```
 
 The collector will start gathering WebRTC stats from the Selenium container and sending them to the Telegraf service.

docker-compose.yml

@@ -14,6 +14,7 @@ services:
       interval: 5s
       timeout: 10s
       retries: 5
+    pull_policy: always
     network_mode: host
 
   telegraf:
@@ -30,6 +31,7 @@ services:
       interval: 5s
       timeout: 10s
       retries: 5
+    pull_policy: always
     networks:
       - backend
 
@@ -50,6 +52,7 @@ services:
       - "9092:9092"
     extra_hosts:
       - "host.docker.internal:host-gateway"
+    pull_policy: always
     networks:
       - backend
 

webrtc-internals-exporter/override.js

@@ -92,10 +92,12 @@ class WebrtcInternalExporter {
     window.postMessage(
       {
         event: "webrtc-internal-exporter:peer-connection-stats",
-        stats
+        stats: [stats]
       },
-      stats
+      [stats]
     );
+
+    log(`Single stat collected:`, [stats]);
   }
 
   async collectAllStats() {
@@ -112,11 +114,12 @@ class WebrtcInternalExporter {
     window.postMessage(
       {
         event: "webrtc-internal-exporter:peer-connections-stats",
-        data: JSON.parse(JSON.stringify(stats)),
+        data: stats
       },
+      stats
     );
 
-    log(`Stats collected:`, JSON.parse(JSON.stringify(stats)));
+    log(`Stats collected:`, stats);
 
     setTimeout(this.collectAllStats.bind(this), this.updateInterval);
     return stats;