Mercurial > bottledash

annotate dash.py @ 21:f730dd0bcf85

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dynamic checking of the tile-status
author sean
date Thu, 13 Aug 2015 12:17:46 +0200
parents 1a13a4ecf931
children 7d431b779512
rev   line source
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1 """
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2 This software is part of "Bottledash"
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3 author: sean engelhardt > sean.engelhardt@intevation.de
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4 license: GNU >= V2. See LICENSE for details
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5 """
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6
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7 from bottle import get, post, request, view, response, route
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8 from bottle import template, run, static_file, error
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9 import os.path, sys, configparser, functools, bottle
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10 import logging
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12 CONFIG_FILE = "dash.conf"
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13 PATH = os.path.abspath(os.path.dirname(sys.argv[0]))
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14 CONFIG_PATH = PATH + "/" + CONFIG_FILE
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15
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16 # Create a new list with absolute paths
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17 MY_TEMPLATE_PATH = [
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18 os.path.abspath(os.path.join(os.path.dirname(__file__), './views')),
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19 ]
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20
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21 # Patch @view() so it uses the customized path list instead of the global one
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22 view = functools.partial(bottle.view, template_lookup=MY_TEMPLATE_PATH)
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23
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24 tiles = []
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25 settings = {}
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26
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27 default_settings = configparser.ConfigParser()
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28 default_settings['settings'] = {'show_top_bar': False, 'rows': 2}
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29
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30 #logging:
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31
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32 logger = logging.getLogger('myapp')
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33 hdlr = logging.FileHandler(PATH + '/bottledash.log')
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34 formatter = logging.Formatter('%(asctime)s %(levelname)s %(message)s')
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35 hdlr.setFormatter(formatter)
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36 logger.addHandler(hdlr)
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37 logger.setLevel(logging.INFO)
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38
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39 ### debug function: prints the current status of the "tiles" in
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40 ### the log-file
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41 def log_tile_status():
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42 global tiles
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43
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44 try:
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45 for tile in tiles:
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46 logger.info("found tile : " + str(tile))
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47 for option in tiles[0]:
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48 logger.info(str(option) + ' : ' + str(tile[option]))
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49 except KeyError:
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50 pass
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51
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52 ###read the config file. usually "dash.conf"
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53 def read_config():
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54 global settings
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55 # print(PATH)
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56
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57 if os.path.isfile(CONFIG_PATH) == False:
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58 write_default_config()
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59
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60 # print("read existing config file...")
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61 config = configparser.ConfigParser()
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62 config.read(CONFIG_PATH)
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63
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64 for section in config.items():
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65 if "tile" in section[0]:
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66 tiles.append(section[1])
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67
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68 ###log read tiles
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69 logger.info("------- read tiles --------")
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70 log_tile_status()
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71
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72 try:
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73 if config["settings"]:
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74 settings = config["settings"]
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75 else:
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76 settings = default_settings["settings"]
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77 except KeyError:
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78 settings = default_settings["settings"]
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79
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80 ###write the default condfig file if there is none
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81 def write_default_config():
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82 print("there is no Config file! Creating one...")
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83 file = open(CONFIG_PATH, "w")
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84 file.write("""
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85 ### bottledash default configuration
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86 ### created by sean engelhardt >sean.engelhardt@intevation.de
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87 ### license: GNU GPL >= v2. See LICENSE for details
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88 ###
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89 ### Usage:
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90 ### define the tiles for the dashboard in sections
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91
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92 # Settings:
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93 # example:
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94 # --------------------
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95 # [settings]
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96 # show_top_bar=True
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97 # --------------------
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98 # options:
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99 # show_top_bar (True / False) [optional]
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100 # If True, the dashboard will show the current date and the time on the top
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101 # if False, the dashboard will not show a top-bar
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102 # default: True
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103 # hint: the top-bar has got a height of 5%!
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104
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105 [settings]
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106 show_top_bar=False
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107
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108 # Tiles:
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109 # example:
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110 # --------------------
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111 # [tile1]
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112 # type=mon
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113 # source=192.168.0.2
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114 # status=up
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115 # --------------------
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116 # options:
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117 # type (mon / d3js) [required]
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118 # tells the program what kind of tile you need.
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119 # a "mon" tile can be used for IT infrastructure monitoring purposes
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120 # a d3js tile can be used to display a chart
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121 # default: -
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122 #
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123 # source (<IP> or <FQDN>) [required for mon-types]
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124 # ONLY FOR MON-Type tiles!
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125 # tells the tile which resource to watch
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126 # default: none
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127 #
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128 # status: (up / down) [required]
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129 # ONLY FOR DEBUGGING PURPOSE - WILL BE REMOVED LATER
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130 # simulates up and down events for mon-type-tiles
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131 #
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132 # div_name: (identifier) [required for d3js-types]
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133 #
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134 # script: (name of a script without extension) [required for d3js-types0]
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135 #
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136 [tile1]
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137 type=mon
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138 source=192.168.0.2
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139 status=down
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140
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141 [tile2]
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142 type=mon
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143 source=192.168.2.3
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144 status=up
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145
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146 [tile3]
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147 type=mon
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148 source=192.168.4.3
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149 status=up
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150
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151 [tile4]
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152 type=d3js
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153 div_name=techintern
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154 script=display_issues_techintern
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155 """)
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156 file.close()
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157
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158 ##Bottle
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159 @route('/')
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160 @view('bottledash_view')
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161 def call_dashboard():
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162 return dict(tiles=tiles, settings=settings)
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163
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164 #wait for post-request which shall inform the system about running services
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165 @post('/updown')
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166 def updown():
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167 global tiles
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168
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169 service = request.forms.get('service')
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170 status = request.forms.get('status')
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171 try:
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172 for tile in tiles:
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173 if tile["source"] == str(service):
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174 tile["status"] = str(status)
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175 except KeyError:
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176 logger.info("this tile got no source : " + str(tile))
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177
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178
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179 logger.info('------- new alert --------')
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180 logger.info('Service : ' + str(service))
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181 logger.info('Status : ' + str(status))
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182 log_tile_status()
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183
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184 return "thanks for informing bottledash! :: " + str(service) + " is " + str(status) + " !"
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185
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186
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187 @post('/ask-systemstate')
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188 def get_systemstate():
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189 global tiles
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190 service = request.forms.get('service')
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191
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192 print("service: " + service)
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193
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194 try:
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195 for tile in tiles:
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196 if tile["source"] == str(service):
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197 # return "service : " + str(service) + " is " + str(tile["status"])
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198 return tile["status"]
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199 except KeyError:
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200 return "cannot find the service: " + str(service)
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201
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202 return "did not found anything in my list for : " + service
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203
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204
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205 @route('/static/<filename>')
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206 def server_static(filename):
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207 return static_file(filename, root=PATH + '/static/')
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208
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209 @error(404)
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210 def error404(error):
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211 return 'Nothing here, sorry <br /> 404'
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212
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213 read_config()
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214 # print(tiles)
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215 run(host='localhost', port=8080, debug=True)
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