Mykhailo Faraponov moredure

Here is how to create a cloud-init disk image and OS disk image suitable for configuring into a libvirt domain file.

In my case I am naming my domain (a.k.a. virtual machine or VM) xenial with a static IP address of 192.168.0.101. The filenames "network-config" and "user-data" files are arbitrary, so they can be named with a prefix for the domain, etc.

First, get the cloud image and convert into QCOW2 format:

qemu-img convert -O qcow2 xenial-server-cloudimg-amd64-disk1.img xenial-server-cloudimg-amd64-disk1.qcow2

Here is how to create a cloud-init disk image and OS disk image suitable for configuring into a libvirt domain file.

In my case I am naming my domain (a.k.a. virtual machine or VM) xenial with a static IP address of 192.168.0.101. The filenames "network-config" and "user-data" files are arbitrary, so they can be named with a prefix for the domain, etc.

First, get the cloud image and convert into QCOW2 format:

qemu-img convert -O qcow2 xenial-server-cloudimg-amd64-disk1.img xenial-server-cloudimg-amd64-disk1.qcow2

Observable React elements with RxJS

Note: if you want to skip history behind this, and just looking for final result see: rx-react-container

When I just started using RxJS with React, I was subscribing to observables in componentDidMount and disposing subscriptions at componentWillUnmount.

But, soon I realised that it is not fun to do all that subscriptions(that are just updating property in component state) manually, and written mixin for this...

Later I have rewritten it as "high order component" and added possibility to pass also obsarvers that will receive events from component.

	import router from '@/router'

	const userKey = 'user'
	const refreshAction = 'sessions/refresh'
	const logoutAction = 'sessions/logout'
	const updateMutations = [
	'sessions/LOGIN',
	'sessions/LOGOUT',
	'sessions/SIGNUP'
	]

	import java.util.concurrent.Callable;
	import java.util.concurrent.Future;
	import java.util.concurrent.FutureTask;
	import java.util.concurrent.PriorityBlockingQueue;
	import java.util.concurrent.RejectedExecutionHandler;
	import java.util.concurrent.RunnableFuture;
	import java.util.concurrent.ThreadFactory;
	import java.util.concurrent.ThreadPoolExecutor;
	import java.util.concurrent.TimeUnit;

	package main

	import (
	"fmt"
	"github.com/hashicorp/raft"
	"github.com/hashicorp/raft-boltdb"
	"io"
	"os"
	"time"
	)

	<?php
	/*
	Updated version, 2016-12-02: fixed shellcode so it actually works on QEMU
	usermode emulation (seems I pushed an old version), and removed debug output.

	-------------------------

	NB: THIS PoC ONLY WORKS IN QEMU USERMODE EMULATION!
	If anyone wants to fix this, go ahead (no pun intended).
	However, I don't have a vulnerable product and am unwilling to acquire one.

	package main

	import (
	"fmt"
	"github.com/hashicorp/raft"
	"github.com/hashicorp/raft-boltdb"
	"io"
	"os"
	"time"
	)

	!#/bin/bash
	# Install openvswitch Ubuntu 14.04.3
	# Author: Oleg Slavkin (oleg@slavkin.info)

	echo "-------------------------------"
	echo "Step 1. Install git package"
	echo "-------------------------------"
	sudo apt-get update
	sudo apt-get -y install git

	/**
	Proof-of-concept server-sent events HTTP server using Node.js and RxJS

	Open http://localhost:8000 in a browser and view the console.
	**/
	var http = require('http'),
	https = require('https');

	var Rx = require('rx');