Casper Prometheus Grabber

Parse various casper endpoints into prometheus client

Requirements/Dependencies

StatusNodePromGrab.py requires python 3 to be installed and the following dependencies:

• requests
• prometheus_client
• twisted

pip3 install requests prometheus_client twisted

Configuration

There are 3 variables you can configure at the top of StatusNodePromGrab.py Set the url to your casper node status endpoint:

endpoint_url = "http://localhost:8888/status"

Set your refresh interval in seconds, at some point this will become more intelligent based on average block times:

interval = 60

Set the port you wish to run the service on:

default_port = 8123

Running in a terminal

This will run as a standard python cli script using twisted's reactor to serve it

python3 StatusNodePromGrab.py

Running headless using twistd (better for running as a service)

If you want to run as a headless application for use as a daemon then Twisted's twisd is better. To run under twistd simply run the command below in your shell, shell script, cron job or systemd etc.

twistd3 -y StatusNodePromGrab.py

For info on deployment using systemd please click here :)