teadur

# this is a configurable version of an EventMachine syslogger
# It was build to replace https://github.com/melito/em-syslog
#
# You can instantiate many of them (no global variables) as
# well as configure the facility. It also quacks like a ruby
# logger so it can be interchanged with a ruby logger.
#
# Example:
#
#     # 11 is the facility code for an FTP daemon

teadur

#!/usr/bin/env python
# coding=utf-8

import argparse
import datetime
import sys
import time
import threading
import traceback
import socketserver

teadur

* Shows a message while asserting like: 

ok: [host] => {                  
    "msg": "disk usage 4.2B of total 20.0GB (21.0%) (should exceed limit 90.0%)"
}

* Note this only looks at first mount point on current node
* Fails if disk is near-full
* Last step pushes to a push-based monitoring service, which will alert us if it doesn't get there after some time
* Need to setup a  variable `disk_limit`, which is the max acceptable usage ratio, e.g. set it to 0.8 if you want to keep disks within 80% of max size

teadur

#
# Figured out using:
# https://wiki.debian.org/DebianInstaller/Preseed/EditIso
# https://www.thegeekstuff.com/2009/07/how-to-view-modify-and-recreate-initrd-img/
# https://gist.github.com/Aktau/5510437
# https://www.cyberciti.biz/faq/how-to-extract-a-deb-file-without-opening-it-on-debian-or-ubuntu-linux/
#

## Go home
cd

teadur

This will return the full Git commit SHA of whichever branch is currently checkedout.

Dump the snippet into terraform console (run from within a Git repo) to see for yourself.

teadur

1. Generate a service account with DNS admin rights and download the json.
2. Generate a service for unauthenticated calls
3. Create a cloud function and upload the index.js, package.json and service acount json
   • 128MB RAM is enough
   • HTTP trigger should be set
   • Unauthenticated call should be set
   • 2. service account should be selected
   • Add the following environment variables:
     • PROJECT_NAME: name of the project, where the DNS is defined

• RECORD_NAME: name of the DNS record, what should be updated. A . is required in the end, like: home.example.com.