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Splunk Trip Tracker

Splunk Setup

App Installation

  1. Download trip_tracker.spl.

  2. In Splunk, click on the Apps dropdown menu (top left) > Manage Apps > Install app from file (top right).

  3. Upload the downloaded trip_tracker.spl file.

HEC Input Setup

  1. In the top right go to Settings > Data Inputs > HTTP Event Collector > Global Settings.

  2. Set "All Tokens" to Enabled, uncheck "Enable SSL", and ensure that "HTTP Port Number" is set to 8088. Click Save.

  3. Click New Token and on the next page, enter a name for the input in the corresponding box (e.g. TripTracker). Click Next.

  4. In the "Select Allowed Indexes" section, select main. Click Review > Submit.

  5. Copy/save the HEC token that should now be displayed. This will be used by the Python script we will run later.

Trip Tracking and Export to Splunk

  1. Download the Geo Tracker - GPS tracker app and record some trips.

  2. Once a trip is recorded, export the trip files (from the sidebar on the left) in GPX format. Copy that file onto your computer. (Or, alternatively, setup Termux to run Python scripts right from your phone.)

  1. Download parse_gpx.py. Edit line 64 and replace SPLUNK_IP and HEC_TOKEN with the IP address of your Splunk instance and the HEC token you created earlier.
parseXML(new_file, 'SPLUNK_IP', 'HEC_TOKEN', 'geotracker')

  1. Run python parse_gpx.py TRIP_GPX_FILE where TRIP_GPX_FILE is the GPX file you exported from the mobile app. (To take this one step further and automatically run this command through Termux upon exporting your GPX file, setup an action on Llamalab's Automate.)

  2. And that's it! Head into the Trip Tracker app in Splunk to take a look at the OOTB dashboards, which should now be populated with data.

Automate GPX Parsing and Ingesting

Using Termux and Llamalab's Automate, the process of parsing your exported GPX file and sending it to Splunk can be automated.

  1. In the home folder of your phone's storage (where the DCIM, Documents, Downloads, etc. folders are located), create a new folder MyMaps if it doesn't already exist. Inside that, create a new folder gpx. Download parse_gpx.py and move it inside the gpx folder.

  2. Download Termux and Llamalab's Automate. Termux, if possible, should be downloaded from F-Droid rather than the Play Store, for the most up-to-date version.

  3. Install Python on Termux by following the steps here. Then run pip install requests.

  4. Download this Termux plugin for the Automate app and follow the steps listed there. Then run

termux-setup-storage
nano ~/.termux/tasker/splunk.sh

and add the following to the file

cd storage/shared/MyMaps/gpx
python parse_gpx.py $(basename ${1})

and then finally run

chmod u+x ~/.termux/splunk.sh

  1. Open up Automate, and create a new flow. Swipe from the right to view the list of blocks, and under File & storage select File monitor. Select the new block and set the "Path" to MyMaps/gpx, "Events" to File created, and the output variable "Path of alteration" to new_file. Click Save.

  2. Swipe from the right again and under Apps, select Plug-in action. Tap the new block to configure, and set the "Plug-in" to Termux. Under the "Plug-in" field, tap Configure.

  3. For "Executable file", enter splunk.sh. "Arguments" should be set to %new_file. Leave the rest as-is, and ensure Execute in a terminal session and Wait for result for commands are checked. Click the save button at the top right. Then on the "Plug-in action" setup screen, click Save again.

  4. Finally, "wire" the flow blocks together as shown in the image below. Press the back button and click Start.

  1. The GPX export directory will now be monitored for any new files, which will automatically get parsed and sent to Splunk. To test this, simply record a trip and click the download/export button, and then watch the automation go!