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How it works ..
collect-libvirt-handler.pl transforms zabbix-item's names (keys) to libvirt's names (unixsocket format)
 and call collectd over unixsocket.
If you have in zabbix name with key: collectd-libvirt.cpu["instance-00000841-virt_cpu_total"],
zabbix runs external command: sudo /etc/zabbix/scripts/collectd-libvirt/collect-libvirt-handler.pl /var/run/collectd-unixsock GETVAL instance-00000841-virt_cpu_total
and and should return number :)

Example workflow:

You should be see in zabbix server:

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// Use Gists to store code you would like to remember later on
console.log(window); // log the "window" object to the console

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Packages

• lxml - Pythonic binding for the C libraries libxml2 and libxslt.
• boto - Python interface to Amazon Web Services
• Django - Django is a high-level Python Web framework that encourages rapid development and clean, pragmatic design.
• Fabric - Library and command-line tool for streamlining the use of SSH for application deployment or systems administration task.
• PyMongo - Tools for working with MongoDB, and is the recommended way to work with MongoDB from Python.
• Celery - Task queue to distribute work across threads or machines.
• pytz - pytz brings the Olson tz database into Python. This library allows accurate and cross platform timezone calculations using Python 2.4 or higher.

Guides

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Libraries

• jQuery - The de-facto library for the modern age. It makes things like HTML document traversal and manipulation, event handling, animation, and Ajax much simpler with an easy-to-use API that works across a multitude of browsers.
• Backbone - Backbone.js gives structure to web applications by providing models with key-value binding and custom events, collections with a rich API of enumerable functions, views with declarative event handling, and connects it all to your existing API over a RESTful JSON interface.
• AngularJS - Conventions based MVC framework for HTML5 apps.
• Underscore - Underscore is a utility-belt library for JavaScript that provides a lot of the functional programming support that you would expect in Prototype.js (or Ruby), but without extending any of the built-in JavaScript objects.
• lawnchair - Key/value store adapter for indexdb, localStorage

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#!/bin/bash
SERVER_IP=<MY_SERVER_IP>

# copy cloud-config.yml to the server
scp cloud-config.yml core@$SERVER_IP:~/

# validate cloud-config file
ssh core@$SERVER_IP "coreos-cloudinit -validate --from-file ~/cloud-config.yml"

if [[ $? == "0" ]]; then

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tmux shortcuts & cheatsheet

action	command(s)
start new	tmux
start new with session name	tmux new -s myname
attach	tmux a # (or at, or attach)
attach to named	tmux a -t myname
list sessions	tmux ls
kill session	tmux kill-session -t myname

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Typing vagrant from the command line will display a list of all available commands.

Be sure that you are in the same directory as the Vagrantfile when running these commands!

Creating a VM

• vagrant init -- Initialize Vagrant with a Vagrantfile and ./.vagrant directory, using no specified base image. Before you can do vagrant up, you'll need to specify a base image in the Vagrantfile.
• vagrant init <boxpath> -- Initialize Vagrant with a specific box. To find a box, go to the public Vagrant box catalog. When you find one you like, just replace it's name with boxpath. For example, vagrant init ubuntu/trusty64.

Starting a VM

• vagrant up -- starts vagrant environment (also provisions only on the FIRST vagrant up)

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#!/bin/bash
set -euo pipefail
set +x

PWD=$(pwd)

#env | grep -E "CI_COMMIT_SHA|CI_COMMIT_REF_NAME"
#echo "pwd: ${PWD}"

echo "run container build in container.."

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---
apiVersion: networking.k8s.io/v1
kind: NetworkPolicy
metadata:
  labels:
  name: default-deny-instance-metadata
spec:
  egress:
  - to:
    - ipBlock:

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---
version: "3.8"

volumes:
#   certs:
#     driver: local
  esdata01:
    driver: local

networks: