Class: Sunzi::Cloud::Base

Inherits:
Object
  • Object
show all
Includes:
Utility
Defined in:
lib/sunzi/cloud/base.rb

Direct Known Subclasses

DigitalOcean, Linode

Instance Method Summary collapse

Methods included from Utility

#abort_with, #exit_with, #say

Constructor Details

#initialize(cli, provider) ⇒ Base

Returns a new instance of Base.



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# File 'lib/sunzi/cloud/base.rb', line 8

def initialize(cli, provider)
  @provider = provider
  @cli = cli
  @ui = HighLine.new
end

Instance Method Details

#ask(question, answer_type, &details) ⇒ Object 



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# File 'lib/sunzi/cloud/base.rb', line 88

def ask(question, answer_type, &details)
  @ui.ask(@ui.color(question, :green, :bold), answer_type, &details)
end

#assign_config_and_dns ⇒ Object 



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# File 'lib/sunzi/cloud/base.rb', line 75

def assign_config_and_dns
  @config = YAML.load(provider_config_path.read)
  @dns = Sunzi::DNS.new(@config, @provider) if @config['dns']
end

#instance_config_path ⇒ Object 



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# File 'lib/sunzi/cloud/base.rb', line 84

def instance_config_path
  Pathname.new "#{@provider}/instances/#{@name}.yml"
end

#proceed? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/sunzi/cloud/base.rb', line 92

def proceed?
  moveon = ask("Are you ready to go ahead and create #{@fqdn}? (y/n) ", String) {|q| q.in = ['y','n']}
  exit unless moveon == 'y'
end

#provider_config_path ⇒ Object 



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# File 'lib/sunzi/cloud/base.rb', line 80

def provider_config_path
  Pathname.new "#{@provider}/#{@provider}.yml"
end

#setup ⇒ Object 



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# File 'lib/sunzi/cloud/base.rb', line 14

def setup
  unless File.exist? provider_config_path
    @cli.empty_directory "#{@provider}/instances"
    @cli.template "templates/setup/#{provider_config_path}", provider_config_path
    exit_with "Now go ahead and edit #{@provider}.yml, then run this command again!"
  end

  assign_config_and_dns

  if @config['fqdn']['zone'] == 'example.com'
    abort_with "You must have your own settings in #{@provider}.yml"
  end

  # Ask environment and hostname
  @env = ask("environment? (#{@config['environments'].join(' / ')}): ", String) {|q| q.in = @config['environments'] }.to_s
  @host = ask('hostname? (only the first part of subdomain): ', String).to_s

  abort_with '"label" field in linode.yml is no longer supported. rename it to "name".' if @config['label']
  @fqdn = @config['fqdn'][@env].gsub(/%{host}/, @host)
  @name = @config['name'][@env].gsub(/%{host}/, @host)
  abort_with "#{@name} already exists!" if instance_config_path.exist?

  assign_api
  @attributes = {}
  do_setup

  # Save instance info
  @cli.create_file instance_config_path, YAML.dump(@instance)

  # Register IP to DNS
  @dns.add(@fqdn, @public_ip) if @dns
end

#teardown ⇒ Object 



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# File 'lib/sunzi/cloud/base.rb', line 47

def teardown
  names = Dir.glob("#{@provider}/instances/*.yml").map{|i| i.split('/').last.sub('.yml','') }
  abort_with "No match found with #{@provider}/instances/*.yml" if names.empty?

  names.each{|i| say i }
  @name = ask("which instance?: ", String) {|q| q.in = names }

  assign_config_and_dns

  @instance = YAML.load(instance_config_path.read)

  # Are you sure?
  moveon = ask("Are you sure about deleting #{@instance[:fqdn]} permanently? (y/n) ", String) {|q| q.in = ['y','n']}
  exit unless moveon == 'y'

  # Run Linode / DigitalOcean specific tasks
  assign_api
  do_teardown

  # Delete DNS record
  @dns.delete(@instance[ip_key]) if @dns

  # Remove the instance config file
  @cli.remove_file instance_config_path

  say 'Done.'
end