增加try异常处理

docker/check_container_info.py

@@ -38,9 +38,15 @@ def check_container_info(container_name, container_item):
         mem_limit = new_result['memory_stats']['limit']
         result = round(float(mem_usage) / float(mem_limit) * 100.0, 2)
     elif container_item == "eth0_rx_byte":
-        result = new_result['networks']['eth0']['rx_bytes'] - old_result['networks']['eth0']['rx_bytes']
+        try:
+            result = new_result['networks']['eth0']['rx_bytes'] - old_result['networks']['eth0']['rx_bytes']
+        except KeyError:
+            result = 0
     elif container_item == "eth0_tx_byte":
-        result = new_result['networks']['eth0']['tx_bytes'] - old_result['networks']['eth0']['tx_bytes']
+        try:
+            result = new_result['networks']['eth0']['tx_bytes'] - old_result['networks']['eth0']['tx_bytes']
+        except KeyError:
+            result = 0
     elif container_item == "blk_io_read":
         r_list = new_result['blkio_stats']['io_service_bytes_recursive']
         for r_dict in r_list:
@@ -61,8 +67,8 @@ def check_container_info(container_name, container_item):
 
 
 if __name__ == "__main__":
-    docker_client = docker.Client(base_url='unix://var/run/docker.sock', version='1.23')
+    docker_client = docker.Client(base_url='unix://var/run/docker.sock')
     container_name = sys.argv[1]
     container_item = sys.argv[2]
-    global result
+    #global result
     print check_container_info(container_name, container_item)
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