Module: Mcrain::Boot2docker

Defined in:
lib/mcrain/boot2docker.rb

Class Attribute Summary collapse

Class Method Summary collapse

Class Attribute Details

.certs_dir ⇒ Object

Returns the value of attribute certs_dir.



14
15
16
 
# File 'lib/mcrain/boot2docker.rb', line 14

def certs_dir
  @certs_dir
end

Class Method Details

.build_docker_options(uri) ⇒ Object 



43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
 
# File 'lib/mcrain/boot2docker.rb', line 43

def build_docker_options(uri)
  d = Boot2docker.certs_dir
  cert_path = File.join(d, "cert.pem")
  key_path = File.join(d, "key.pem")
  files = {
    ".docker/cert.pem" => cert_path,
    ".docker/key.pem" => key_path,
  }
  download_files_from_vm(uri.host, files)
  return {
    client_cert: cert_path,
    client_key: key_path,
    scheme: 'https',
  }
end

.download_files_from_vm(host, files) ⇒ Object

docs.docker.com/reference/api/docker_remote_api/ github.com/boot2docker/boot2docker#ssh-into-vm



61
62
63
64
65
66
67
68
69
 
# File 'lib/mcrain/boot2docker.rb', line 61

def download_files_from_vm(host, files)
  return if files.values.all?{|f| File.readable?(f)}
  files.values.each{|f| FileUtils.mkdir_p(File.dirname(f))}
  Net::SCP.start(host, "docker", :password => "tcuser") do |scp|
    files.each do |src, dest|
      scp.download(src, dest)
    end
  end
end

.preparing_command ⇒ Object 



24
25
26
27
28
29
30
 
# File 'lib/mcrain/boot2docker.rb', line 24

def preparing_command
  return "" unless used?
  unless `boot2docker status`.strip == "running"
    raise "boot2docker is not running. Please `boot2docker start`"
  end
  "%s && " % `boot2docker shellinit`.strip.split(/\n/).join(" && ")
end

.setup_docker_options ⇒ Object 



32
33
34
35
36
37
38
39
40
41
 
# File 'lib/mcrain/boot2docker.rb', line 32

def setup_docker_options
  if RbConfig::CONFIG["host_os"] =~ /darwin/
    require 'docker'
    uri = URI.parse(ENV["DOCKER_HOST"])
    Excon.defaults[:ssl_verify_peer] = false
    Docker.options = build_docker_options(uri)
  elsif ENV["DOCKER_HOST"].nil?
    ENV["DOCKER_HOST"] = "http://localhost:2375"
  end
end

.used? ⇒ Boolean

Returns:

  • (Boolean) 


20
21
22
 
# File 'lib/mcrain/boot2docker.rb', line 20

def used?
  RbConfig::CONFIG["host_os"] =~ /darwin/
end