From d8a7c626ea9fd7ccd4f755c89edfcb31dddf6fee Mon Sep 17 00:00:00 2001
From: Oliver Ladner <waste@lugh.ch>
Date: Fri, 21 Dec 2018 09:34:07 +0100
Subject: [PATCH] JSON check boilerplate

---
 check_json.py | 54 +++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 54 insertions(+)
 create mode 100755 check_json.py

diff --git a/check_json.py b/check_json.py
new file mode 100755
index 0000000..42f8fdc
--- /dev/null
+++ b/check_json.py
@@ -0,0 +1,54 @@
+#!/usr/bin/env python
+import getopt
+import requests
+import json
+import sys
+
+goodstate = 'UP'
+icinga_ok = 0
+icinga_crit = 2
+icinga_unknown = 3
+
+try:
+    options, args = getopt.getopt(sys.argv[1:], 'u:t:', ['url=', 'timeout=',])
+except getopt.GetoptError as e:
+    print e
+    sys.exit(icinga_crit)
+
+for opt, arg in options:
+    if opt in ('-u', '--url'):
+        url = arg
+    elif opt in ('-t', '--timeout'):
+        timeout_s = int(arg)
+    else:
+        sys.exit(1)
+
+try:
+    resp = requests.get(url, timeout=timeout_s)
+except (requests.exceptions.ConnectionError, requests.exceptions.ReadTimeout) as e:
+    print e
+    sys.exit(icinga_crit)
+
+try:
+    json_resp = json.loads(resp.text)
+except ValueError as e:
+    print e
+    sys.exit(icinga_crit)
+
+http_status = resp.status_code
+state_global = json_resp['status']
+
+if (state_global == goodstate and
+  http_status == requests.codes.ok):
+  # 'OK' case
+  print 'All is fine (status: ' + state_global + ', HTTP: ' + str(http_status) + ')'
+  sys.exit(icinga_ok)
+elif (state_global != goodstate or
+  http_status != requests.codes.ok):
+  # 'NOK' case
+  print 'Global state is bad (status: ' + state_global + ', HTTP: ' + str(http_status) + '). Check ' + url
+  sys.exit(icinga_crit)
+else:
+  # 'unknown' case
+  print 'Undefined state. Check other monitoring tools for evidence'
+  sys.exit(icinga_unknown)