add exception handling for networks stats

If the container uses `bridge` mode there are no network stats.
elacheche · Dec 10, 2019 · 18c3233 · 18c3233
1 parent 1e78ca6
commit 18c3233
Showing 1 changed file with 9 additions and 2 deletions.
diff --git a/docker_check.py b/docker_check.py
@@ -60,8 +60,15 @@ def get_cpu_pct(stats):
 
 def get_net_io(stats):
     '''Get a container Net In / Out usage since it's launche'''
-    net_in = stats['networks']['eth0']['rx_bytes']
-    net_out = stats['networks']['eth0']['tx_bytes']
+    try:
+        net_in = stats['networks']['eth0']['rx_bytes']
+    except KeyError:
+        net_in = 0
+    try:
+        net_out = stats['networks']['eth0']['tx_bytes']
+    except KeyError:
+        net_out = 0
+
     return net_in, net_out