lbogdan

So, I've been taking a better look at VirtualBox's networking model. Turns out that the Vagrant's networking model was a direct consequence of VirtualBox's: if you take a look at VirtualBox's Networking Modes documentation, you'll see the only mode that provides full Host <-> VM, VM1 <-> VM2 and VM <-> Internet connectivity by using a single network interface is "Bridged".

That's probably the reason why Vagrant chose to use "NAT" mode for the default network interface, which provides VM <-> Internet connectivity, and only limited Host <-> VM connectivity, by using port forwarding to be able to SSH from the Host to the VM. So if you need additional full Host <-> VM and VM1 <-> VM2 connectivity, you'll need to add another network interface in "Host-only" mode.

So it looks like for fluff we're only left with being able to use "Bridged" mode, which comes with a few drawbacks:

• when you configure the VM network interface, you

lbogdan

#!/bin/bash

set -euo pipefail

IMAGE_QCOW2="AlmaLinux-8-GenericCloud-8.5-20211119.x86_64.qcow2"
IMAGE_URL="https://repo.almalinux.org/almalinux/8/cloud/x86_64/images/$IMAGE_QCOW2"
IMAGE_VMDK="AlmaLinux-8-GenericCloud-8.5-20211119.x86_64.vmdk"
VMS_PATH="/Users/lbogdan/Virtual Machines.localized"
VM_NAME="control"
USERNAME="lbogdan"

lbogdan

Keybase proof

I hereby claim:

• I am lbogdan on github.
• I am lbogdan (https://keybase.io/lbogdan) on keybase.
• I have a public key ASAgdD06ulF9Q3S3sOgaWoFSS6rZ6jgp_Fc1COXa4WUWyQo

To claim this, I am signing this object:

lbogdan

#!/bin/sh

# run this inside an Ubuntu 18.04 container

set -e
set -u
set -x

DH_GOLANG_DEB=dh-golang_1.48_all.deb
BUILD_DIR=cri-o

lbogdan

At the beginning of the workshop you should have all of the following installed:

• Node.js (preferably the latest LTS version, which as of now is 10.15.0): https://nodejs.org/en/download/
• Visual Studio Code: https://code.visualstudio.com/download
  • after installing and starting, also install eslint, prettier and vetur plugins
• Vue.js devtools Chrome extension: https://chrome.google.com/webstore/detail/vuejs-devtools/nhdogjmejiglipccpnnnanhbledajbpd?hl=en
• git, which you can install from:
  • for Windows - https://gitforwindows.org/ (also includes Git BASH and usual *NIX tools)
  • for MacOS - https://git-scm.com/download/mac
  • for Linux - use the distro package manager
• yarn and @vue/cli npm packages installed globally:

lbogdan

Feature: synchronize externally modified sandbox files with the API

Steps:

1. the agent detects the change, sends it to the manager
2. the manager sends the change to an authenticated API endpoint
3. the API process the change (uploads the file if binary, updates the DB)
4. the manager sends an external change notification to all connected clients
5. the client refetches the sandbox contents (lazy fetching?)

Detecting the change - agent

lbogdan

#!/bin/bash

INTERFACE=ens33       # interface we're listening on
NUM_PACKETS=3         # number of packets sent at once
TIME_THRESHOLD=3      # max seconds between packets
PACKET_THRESHOLD=3    # packets needed to run command
COMMAND="echo DONE!"  # command to run

packet_count=0
last_timestamp=0

lbogdan

const Koa = require('koa');
const Router = require('koa-router');
const AWS = require('aws-sdk');

const app = new Koa();
const router = new Router();

const thumbnails = {};

AWS.config.loadFromPath('./aws_lambda.json');

lbogdan

const path = require('path');
const puppeteer = require('puppeteer');
const AWS = require('aws-sdk');

const s3Config = {
  apiVersion: '2006-03-01',
  region: 'eu-central-1',
  bucket: 'codesandbox-thumbnails',
};
const puppeteerConfig = {

lbogdan

(function () {

var defs = {}; // id -> {dependencies, definition, instance (possibly undefined)}

// Used when there is no 'main' module.
// The name is probably (hopefully) unique so minification removes for releases.
var register_3795 = function (id) {
  var module = dem(id);
  var fragments = id.split('.');
  var target = Function('return this;')();