Dave Tucker dave-tucker

DNS-based Links Implementation

TL;DR it's all about search domains.

Search Domains

DNS Search Domains are a client-side helper for resolving short names (identified as not containing a dot) to Fully Qualified Domain Names (FQDNs) - these do have dots

For example, let's say I have a bunch of development machines dev1, dev2 and dev3 that are all hosted at stage.example.com. Rather than typing dev1.stage.example.com to reach my machine, I can configure a search domain of stage.example.com. Now when I query dev1 and do not get a response from the name server, I will append stage.example.com and query for dev1.stage.example.com. I've made it simpler from a user's perspective at the expense of an extra DNS query.

	(*
	Based on the script at:
	◸ Veritrope.com
	Apple Mail to Evernote

	Modified by Dave Tucker

	VERSION 2.08
	December 20, 2015

	package main

	import (
	log "github.com/Sirupsen/logrus"
	"github.com/docker/machine/commands/mcndirs"
	"github.com/docker/machine/libmachine"
	)

	func GetMachines() error {
	api := libmachine.GetDefaultStore()

	package main

	import (
	"fmt"

	log "github.com/Sirupsen/logrus"
	"github.com/docker/machine/commands/mcndirs"
	"github.com/docker/machine/libmachine"
	)

	package main

	import (
	"fmt"

	log "github.com/Sirupsen/logrus"
	"github.com/docker/machine/commands/mcndirs"
	"github.com/docker/machine/libmachine"
	"github.com/docker/machine/libmachine/persist"
	)

	// Driver represent the interface a driver must fulfill.
	type Driver interface {
	CreateNetwork(CreateNetworkRequest) error
	DeleteNetwork(DeleteNetworkRequest) error
	CreateEndpoint(CreateEndpointRequest) error
	DeleteEndpoint(DeleteEndpointRequest) error
	Join(JoinRequest) (JoinResponse, error)
	Leave(LeaveRequest) error
	}

	Host 1 - Container 1
	d145641f771b7604074a9b1139e6966f8aff82bf95142d7d2f07a250d5469777
	docker $(docker-machine config mh-$i) run --net=foo -d busybox top 0.14s user 0.01s system 39% cpu 0.363 total
	Host 1 - Container 2
	434b100f77550866aa97241c87aca41912d2bbe31e9bc82fed3fc95e0ba2ce63
	docker $(docker-machine config mh-$i) run --net=foo -d busybox top 0.13s user 0.01s system 38% cpu 0.366 total
	Host 2 - Container 1
	0ca14921aa5aea270bacf2401ca1e564be31305ded8ae805a3f6d16aa97f723d
	docker $(docker-machine config mh-$i) run --net=foo -d busybox top 0.14s user 0.00s system 39% cpu 0.359 total
	Host 2 - Container 2

	#!/bin/bash

	set -e

	# Docker Machine Setup
	docker-machine create \
	-d virtualbox \
	--virtualbox-boot2docker-url https://github.com/tianon/boot2docker-legacy/releases/download/v1.9.0-rc1/boot2docker.iso \
	mhs-consul