Ian Luca ianldgs

Docker Swarm with Macvlan, Consul and Autoscaling

TL;DR:

This will get you routable containers with IPs on your existing subnets, advertising to Consul. They will also be scalable and placed across a cluster of Swarm hosts. It's assumed that you are already running Consul, so if not, there are a ton of tutorials out there. It's also assumed you know how to install Docker and various Linux kernels.

Bonus: We add an autoscaling API called Orbiter (https://gianarb.it/blog/orbiter-the-swarm-autoscaler-moves).

I just want to run containers, like now, on my existing infrastructure and networks!

So you have an existing environment. You use Consul for service discovery. Life is good. Containers are now a thing and you want to work them in without having to worry about overlay networking or reverse proxies. You also don't want to add extra latency (as some naysayers could use it as fuel to kill your hopes and dreams). Lastly, you don't have a lot of time to invest in a complex orchestration tool, such a

Well, that was unexpected. In the following, I’m trying to follow Jon Evans’ advice from “The Terrible Technical Interview”.

To: [email protected]
From: Ahmed Fasih
Subject: Re: Programming Test Invitation

Hi there! Thanks for offering to let me take a HackerRank test for ABC, I appreciate the vote of confidence.

Install

brew install dnscrypt-proxy

Configure

Edit /usr/local/etc/dnscrypt-proxy.toml as needed. I added/modified the following lines:

	---
	version: '2'
	services:
	zk1:
	image: confluentinc/cp-zookeeper:3.0.1
	ports:
	- "22181:22181"
	environment:
	ZOOKEEPER_SERVER_ID: 1
	ZOOKEEPER_CLIENT_PORT: 22181

	import 'package:flutter/material.dart';
	import 'theme.dart' as Theme;

	void main() {
	runApp(
	new MaterialApp(
	title: 'CompanyApp',
	color: Theme.CompanyColors.blue[500],
	theme: Theme.CompanyThemeData,
	home: new Scaffold(

	package main

	import (
	"context"
	"flag"
	"fmt"
	"log"
	"net/http"
	"os"
	"os/signal"

	import 'package:flutter/material.dart';

	class Bubble extends StatelessWidget {
	Bubble({this.message, this.time, this.delivered, this.isMe});

	final String message, time;
	final delivered, isMe;

	@override
	Widget build(BuildContext context) {

	1) Install cloudflared using homebrew:

	brew install cloudflare/cloudflare/cloudflared

	2) Create /usr/local/etc/cloudflared/config.yaml, with the following content

	proxy-dns: true
	proxy-dns-upstream:
	- https://1.1.1.1/dns-query
	- https://1.0.0.1/dns-query

	import { useReducer, useEffect } from 'react';
	import { useSwipeable, SwipeableHandlers, EventData } from 'react-swipeable';

	function previous(length: number, current: number) {
	return (current - 1 + length) % length;
	}

	function next(length: number, current: number) {
	return (current + 1) % length;
	}

	KEYMAPOPTS="us us"
	HOSTNAMEOPTS="-n alpine"
	INTERFACESOPTS="auto lo
	iface lo inet loopback

	auto eth0
	iface eth0 inet dhcp
	hostname alpine
	"
	TIMEZONEOPTS="-z UTC"