lib/gantree/create.rb
require 'cloudformation-ruby-dsl'
require 'highline/import'
require_relative 'cfn/master'
require_relative 'cfn/beanstalk'
require_relative 'cfn/resources'
module Gantree
class Create < Base
attr_reader :env, :stack_name
def initialize stack_name,options
check_credentials
set_aws_keys
@requirements = "#!/usr/bin/env ruby
require 'cloudformation-ruby-dsl/cfntemplate'
require 'cloudformation-ruby-dsl/spotprice'
require 'cloudformation-ruby-dsl/table'"
additional_options = {
requirements: @requirements,
stack_name: stack_name,
stack_hash: (0...8).map { (65 + rand(26)).chr }.join
}
@options = options.merge(additional_options)
@options[:env] ||= create_default_env
@options[:env_type] ||= env_type
@options[:solution] ||= get_latest_docker_solution
@templates = ['master','resources','beanstalk']
end
def run
@options[:rds_enabled] = rds_enabled? if @options[:rds]
print_options
create_cfn_if_needed
create_all_templates unless @options[:local]
upload_templates unless @options[:dry_run]
create_aws_cfn_stack unless @options[:dry_run]
end
def stack_template
s3.buckets["#{@options[:cfn_bucket]}/#{@options[:stack_name]}"].objects["#{@options[:stack_name]}-master.cfn.json"]
end
def create_cfn_if_needed
Dir.mkdir 'cfn' unless File.directory?("cfn")
end
def create_all_templates
@options[:dupe] ? duplicate_stack : generate_all_templates
end
def generate_all_templates
puts "Generating templates from gantree"
generate("master", MasterTemplate.new(@options).create)
generate("beanstalk", BeanstalkTemplate.new(@options).create)
generate("resources", ResourcesTemplate.new(@options).create)
end
def duplicate_stack
puts "Duplicating cluster"
orgin_stack_name = @options[:dupe]
@templates.each do |template|
FileUtils.cp("cfn/#{orgin_stack_name}-#{template}.cfn.json", "cfn/#{@options[:stack_name]}-#{template}.cfn.json")
file = IO.read("cfn/#{@options[:stack_name]}-#{template}.cfn.json")
file.gsub!(/#{escape_characters_in_string(orgin_stack_name)}/, @options[:stack_name])
replace_env_references(file)
IO.write("cfn/#{@options[:stack_name]}-#{template}.cfn.json",file)
end
end
def replace_env_references file
origin_tags = @options[:dupe].split("-")
new_tags = @options[:stack_name].split("-")
possible_roles = ["app","worker","listener","djay","scheduler","sched","list","lisnr","listnr"]
possible_roles.each do |role|
origin_env = [origin_tags[1],origin_tags[0],role,origin_tags[2]].join('-')
new_env = [new_tags[1],new_tags[0],role,new_tags[2]].join('-')
file.gsub!(/#{escape_characters_in_string(origin_env)}/, new_env)
end
end
def generate(template_name, template)
IO.write("cfn/#{template_name}.rb", template)
json = `ruby cfn/#{template_name}.rb expand`
Dir.mkdir 'cfn' rescue Errno::ENOENT
template_file_name = "#{@options[:stack_name]}-#{template_name}.cfn.json"
IO.write("cfn/#{template_file_name}", json)
puts "Created #{template_file_name} in the cfn directory"
FileUtils.rm("cfn/#{template_name}.rb")
end
def create_aws_cfn_stack
puts "Creating stack on aws..."
stack = cfm.stacks.create(@options[:stack_name], stack_template, {
:disable_rollback => true,
:tags => [
{ key: "StackName", value: @options[:stack_name] },
]})
end
def rds_enabled?
if @options[:rds] == nil
puts "RDS is not enabled, no DB created"
false
elsif @options[:rds] == "pg" || @rds == "mysql"
puts "RDS is enabled, creating DB"
true
else
raise "The --rds option you passed is not supported please use 'pg' or 'mysql'"
end
end
end
end