erp5: http monitor script get settings from zero knowledge config file

stack/erp5/buildout.cfg

@@ -180,7 +180,7 @@ context =
 recipe = slapos.recipe.template
 filename = instance-http-monitor.cfg.in
 url = ${:_profile_base_location_}/${:filename}
-md5sum = f1d5fa0e3f0b5f42cc87119c427d20a6
+md5sum = d2ddadaa0459319745b78dc704200755
 output = ${buildout:directory}/template-http-monitor.cfg.in
 
 ##################e
@@ -191,7 +191,7 @@ output = ${buildout:directory}/template-http-monitor.cfg.in
 < = download-base
 url = ${:_profile_base_location_}/monitor-templates/monitor-check-cache-hit.in
 download-only = true
-md5sum = b9f3f93bc41287698a44a687e6483f01
+md5sum = 8e9ea2bec2fff4bd98c074cb69cf8592
 filename = monitor-check-cache-hit.in
 mode = 0644
 

stack/erp5/instance-http-monitor.cfg.in

@@ -30,15 +30,14 @@ template = ${template-monitor-check-cache-hit:location}/${template-monitor-check
 rendered = $${monitor-directory:monitor-custom-scripts}/check-cache-hit.py
 mode = 700
 context =
-  key url_list zero-parameters:url_list
-  key resolve_list zero-parameters:resolve_list
+  raw config_cfg $${buildout:directory}/$${public:filename}
   raw python_executable ${buildout:bin-directory}/python2.7
 
 [public]
 recipe = slapos.cookbook:zero-knowledge.write
 filename = knowledge0.cfg
-url_list = ['http://www.erp5.com/']
-resolve_list = ['www.erp5.com:80:5.135.149.226']
+json_url_list = ["http://www.erp5.com/"]
+json_resolve_list = ["www.erp5.com:80:5.135.149.226"]
 
 [zero-parameters]
 recipe = slapos.cookbook:zero-knowledge.read

stack/erp5/monitor-templates/monitor-check-cache-hit.in

@@ -5,11 +5,16 @@
 
 import sys
 import pycurl
+import ConfigParser
+import os
+import json
 
 from mimetools import Message
 from cStringIO import StringIO
 from HTMLParser import HTMLParser
 
+####################
+# Init logging tools
 def debug(*args):
   # sys.stderr.write("DEBUG: " + "\n     : ".join(" ".join((str(arg) for arg in args)).split("\n")) + "\n")
   pass
@@ -30,6 +35,27 @@ def error(*args):
   last_error_log = "ERROR: " + "\n     : ".join(" ".join((str(arg) for arg in args)).split("\n")) + "\n"
   sys.stderr.write(last_error_log)
 
+#############################
+# Checking configuration file
+config_file = "{{ config_cfg }}"
+if not os.path.exists(config_file):
+  error("Your software does *NOT* embed 0-knowledge. This interface is useless in this case")
+  exit(1)
+
+##################################
+# Getting configuration parameters
+config_parser = ConfigParser.ConfigParser()
+config_parser.read(config_file)
+
+if not config_parser.has_section('public'):
+  error("Your software does not use 0-knowledge settings.")
+  exit(1)
+
+url_list = json.loads(config_parser.get("public", "json_url_list"))
+resolve_list = json.loads(config_parser.get("public", "json_resolve_list"))
+
+########################
+# Prepare & run requests
 class MyHTMLParser(HTMLParser):
   def __init__(self, base_url):
     HTMLParser.__init__(self)
@@ -61,9 +87,6 @@ headers = {
  #   "Connection": "keep-alive"
 }
 
-url_list = {{ url_list }}
-resolve_list = {{ resolve_list }}
-
 parsed_url_dict = {}
 
 info("Start checking for cache hits")