brew install https://gist.github.com/Argon-/9e270f35269f5679f671/raw/cd424d211a4881be4d6db2f34a7085c1f9cb9225/juju.rb

juju.rb

require 'formula'

class Juju < Formula
  homepage 'https://juju.ubuntu.com'
  url 'https://launchpad.net/juju-core/1.24/1.24-beta3/+download/juju-core_1.24-beta3.tar.gz'
  sha1 '2186c1e52115db39338ca57e1d2cf6aa56f5b5b0'

  depends_on 'go' => :build
  
  patch :DATA

  def install
    ENV["GOPATH"] = buildpath
    system "go", "build", "github.com/juju/juju/cmd/juju"
    system "go", "build", "github.com/juju/juju/cmd/plugins/juju-metadata"
    bin.install "juju", "juju-metadata"
    bash_completion.install "src/github.com/juju/juju/etc/bash_completion.d/juju-core"
  end

  test do
    system "#{bin}/juju", "version"
  end
end


__END__
diff --git a/src/github.com/juju/juju/provider/ec2/instancetype.go b/src/github.com/juju/juju/provider/ec2/instancetype.go
index 54da459..b59b8af 100644
--- a/src/github.com/juju/juju/provider/ec2/instancetype.go
+++ b/src/github.com/juju/juju/provider/ec2/instancetype.go
@@ -298,7 +298,7 @@ var allInstanceTypes = []instances.InstanceType{
 		Mem:      1024,
 		// Burstable baseline is 10% (from http://aws.amazon.com/ec2/faqs/#burst)
 		CpuPower: instances.CpuPower(10),
-		VirtType: &paravirtual,
+		VirtType: &hvm,
 	},
 	{ // General Purpose, 3rd generation.
 		Name:     "t2.small",
@@ -307,7 +307,7 @@ var allInstanceTypes = []instances.InstanceType{
 		Mem:      2048,
 		// Burstable baseline is 20% (from http://aws.amazon.com/ec2/faqs/#burst)
 		CpuPower: instances.CpuPower(20),
-		VirtType: &paravirtual,
+		VirtType: &hvm,
 	},
 	{ // General Purpose, 3rd generation.
 		Name:     "t2.medium",
@@ -316,7 +316,7 @@ var allInstanceTypes = []instances.InstanceType{
 		Mem:      4096,
 		// Burstable baseline is 40% (from http://aws.amazon.com/ec2/faqs/#burst)
 		CpuPower: instances.CpuPower(40),
-		VirtType: &paravirtual,
+		VirtType: &hvm,
 	},
 
 	{ // Compute-optimized, 3rd generation.