Update exporter.py

exporter.py

@@ -1,6 +1,7 @@
 import time
 import docker
 from prometheus_client import start_http_server, Gauge
+from concurrent.futures import ThreadPoolExecutor
 
 client = docker.from_env()
 
@@ -15,8 +16,8 @@ def calc_cpu(stats):
     cpus = stats["cpu_stats"].get("online_cpus", 1)
     return (cd / sd) * cpus * 100 if sd > 0 else 0
 
-def collect():
-    for c in client.containers.list():
+def collect_one(c):
+    try:
         stats = c.stats(stream=False)
         name = c.name
         labels = c.labels
@@ -29,8 +30,16 @@ def collect():
         tx = sum(v["tx_bytes"] for v in net.values())
         net_rx_gauge.labels(name, project, service).set(rx)
         net_tx_gauge.labels(name, project, service).set(tx)
+    except Exception:
+        pass
+
+def collect():
+    containers = client.containers.list()
+    with ThreadPoolExecutor(max_workers=10) as executor:
+        executor.map(collect_one, containers)
 
 start_http_server(9338)
 while True:
     collect()
     time.sleep(15)
+