From 18c32331fac92decf4847e8b501b0a8caeb884d9 Mon Sep 17 00:00:00 2001
From: markwell-ch <43644469+markwell-ch@users.noreply.github.com>
Date: Tue, 10 Dec 2019 16:02:54 +0100
Subject: [PATCH] add exception handling for networks stats

If the container uses `bridge` mode there are no network stats.
---
 docker_check.py | 11 +++++++++--
 1 file changed, 9 insertions(+), 2 deletions(-)

diff --git a/docker_check.py b/docker_check.py
index c97f0a1..96373b8 100755
--- 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