OpenTSDB Dashboard
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Generating Dashboard JSON files
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1) Go to the openTSDB and generate a graph the way you want it to be.
2) Click on the JSON tab, this will show you the JSON which generated the graph. Copy this JSON and store it in a file.
3) Repeat step2 for all other graphs which you want to see in the dashboard. Save all of them in separate file.
4) Copy the template.json to include the path for your graph. Also edit the default_site , default_location to the value you want to. You can leave it blank if you do not want a default value. I've added two templates for two different dashboard layouts.
5) Go to the automate directory and execute the generate.py in the following format
   python generate.py <TEMPLATE_FILENAME> <OUTPUT_FILENAME>
6) Copy the <OUTPUT_FILENAME> to the DASHBOARDS_DIR.

Setting up the Dashboard  (Assume Opentsdb running etc.)
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1) Copy the dashboard content in the directory.
2) Edit the config file to substitute the values of filter1 and filter2. You can use these filters to see the dashboard based on their values.
3) Execute build.sh and pass config file as command line argument. This will update the values of filter1 and filter2 from index.html and tsdb.js.
   eg: If I set the value of filter1 to be Host and filter2 to be Location in the config file, then   executing the command ./build.sh config will update the content of

   index.html
   -----------
   <input type="text" name="fval1" id="fval1" size="7" maxsize="4" placeholder="filter1"> 
   <input type="text" name="fval2" id="fval1" size="7" maxsize="4" placeholder="filter2"> 

   To
   <input type="text" name="fval1" id="fval1" size="7" maxsize="4" placeholder="Host"> 
   <input type="text" name="fval2" id="fval1" size="7" maxsize="4" placeholder="Location"> 
   
   AND

   tsdb.js
   -------
   var tsdb_filter = {
    FILTER1: "filter1",
    FILTER2: "filter2",
   };
   To
   var tsdb_filter = {
    FILTER1: "Host",
    FILTER2: "Location",
   };

4) Update the value of OPENTSDB_URL and DASHBOARDS_DIR in tsdb.js
5) You should see the dashboards in the dropdown.