add nginx agent use python3

snmp/nginx-python3.py

@@ -0,0 +1,28 @@
+#!/usr/bin/env python3
+from urllib.request import urlopen
+import re
+
+data = urlopen('http://localhost/nginx-status').read()
+
+params = {}
+
+for line in data.decode().split("\n"):
+  smallstat = re.match(r"\s?Reading:\s(.*)\sWriting:\s(.*)\sWaiting:\s(.*)$", line)
+  req = re.match(r"\s+(\d+)\s+(\d+)\s+(\d+)", line)
+  if smallstat:
+    params["Reading"] = smallstat.group(1)
+    params["Writing"] = smallstat.group(2)
+    params["Waiting"] = smallstat.group(3)
+  elif req:
+    params["Requests"] = req.group(3)
+  else:
+    pass
+
+dataorder = ["Active", "Reading", "Writing", "Waiting", "Requests"]
+
+for param in dataorder:
+  if param == "Active":
+    Active = int(params["Reading"]) + int(params["Writing"]) + int(params["Waiting"])
+    print(Active)
+  else:
+    print(params[param])