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prepd.rb
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prepd.rb
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require 'csv'
require 'securerandom'
require 'mkmf'
def p
@p ||= Prepd::Project.new
end
module Prepd
class Project
attr_accessor :tf_creds, :tf_key, :tf_secret, :ansible_creds, :ansible_key, :ansible_secret
attr_accessor :repo_url
#
# Initialize the prepd-project or just copy in developer credentials if the project already exists
#
def create
STDOUT.puts '### Running prepd'
# configure
# setup_git
clone_submodules
copy_developer_yml
generate_credentials
encrypt_vault_files
# commit_git
end
# NOTE: Re-enable this function if/when there is a need for the user to modify values
# before running 'vagrant up' for the first time
# def configure
# return unless File.exist?('.prepd.yml')
# require 'yaml'
# prepd_conf = YAML.load_file('.prepd.yml')
# prepd_conf.each { |k, v| send("#{k}=", v) }
# end
#
# Clone prepd, remove the git history and start with a clean repository
#
def setup_git
Dir.chdir(path) do
FileUtils.rm_rf(".git")
system('git init')
end
end
def commit_git
Dir.chdir(path) do
system('git add .')
system("git commit -m 'First commit from Prepd'")
system("git remote add origin #{repo_url}") if repo_url
end
end
#
# Clone ansible roles and terraform modules
#
def clone_submodules
Dir.chdir("#{path}/ansible/roles") do
system('git submodule add [email protected]:rjayroach/prepd-roles.git prepd')
system('git submodule add [email protected]:rjayroach/terraplate.git')
system('git submodule add [email protected]:rjayroach/terraplate-components.git')
end
# Dir.chdir("#{path}/terraform") do
# system('git submodule add [email protected]:rjayroach/terraform-modules.git modules')
# end
end
#
# Copy developer credentials or create them if the file doesn't already exists
#
def copy_developer_yml
Dir.chdir(creds_path) do
return if File.exists?("developer.yml")
File.open('developer.yml', 'w') do |f|
f.puts('---')
f.puts("git_username: #{`git config --get user.name`.chomp}")
f.puts("git_email: #{`git config --get user.email`.chomp}")
f.puts("docker_username: ")
f.puts("docker_password: ")
end
end
end
#
# Create AWS credential files for Terraform and Ansible, ssh keys and and ansible-vault encryption key
# NOTE: The path to credentials is used in the ansible-role prepd
#
def generate_credentials
generate_tf_creds
generate_ansible_creds
generate_ssh_keys
generate_vault_password
end
#
# By default, look for downloaded AWS credentials in CSV format in these locations
#
def tf_creds
@tf_creds ||= "#{creds_path}/terraform/default.csv"
end
def ansible_creds
@ansible_creds ||= "#{creds_path}/boto.csv"
end
def generate_tf_creds
self.tf_key, self.tf_secret = CSV.read(tf_creds).last.slice(2,2) if File.exists?(tf_creds)
unless tf_key and tf_secret
STDOUT.puts 'tf_key and tf_secret need to be set (or set tf_creds to path to CSV file)'
return
end
Dir.chdir(creds_path) do
FileUtils.mkdir_p 'terraform'
File.open('terraform/default.tfvars', 'w') do |f|
f.puts("aws_access_key_id = \"#{tf_key}\"")
f.puts("aws_secret_access_key = \"#{tf_secret}\"")
end
end
end
def generate_ansible_creds
self.ansible_key, self.ansible_secret = CSV.read(ansible_creds).last.slice(2,2) if File.exists?(ansible_creds)
unless ansible_key and ansible_secret
STDOUT.puts 'ansible_key and ansible_secret need to be set (or set ansible_creds to path to CSV file)'
return
end
Dir.chdir(creds_path) do
File.open('boto', 'w') do |f|
f.puts('[profile default]')
f.puts("aws_access_key_id = #{ansible_key}")
f.puts("aws_secret_access_key = #{ansible_secret}")
end
end
end
#
# Generate a key pair to be used as the EC2 key pair
#
def generate_ssh_keys(file_name = 'id_rsa')
Dir.chdir(creds_path) { system("ssh-keygen -b 2048 -t rsa -f #{file_name} -q -N '' -C 'ansible@#{host_name}.local'") }
end
#
# Generate the key to encrypt ansible-vault files
#
def generate_vault_password(file_name = 'vault-password.txt')
require 'securerandom'
Dir.chdir(creds_path) { File.open(file_name, 'w') { |f| f.puts(SecureRandom.uuid) } }
end
#
# Use ansible-vault to encrypt the inventory group_vars
#
def encrypt_vault_files
Dir.chdir("#{path}/ansible") do
%w(all development local production staging).each do |env|
system("ansible-vault encrypt group_vars/#{env}/vault")
end
end
end
def encrypt(mode = :vault)
return unless executable?('gpg')
Dir.chdir(path) do
system "tar cf #{archive(:credentials)} #{file_list(mode)}"
end
system "gpg -c #{archive(:credentials)}"
FileUtils.rm(archive(:credentials))
"File created: #{archive(:credentials)}.gpg"
end
def encrypt_data
return unless executable?('gpg')
Dir.chdir(path) do
system "tar cf #{archive(:data)} data"
end
system "gpg -c #{archive(:data)}"
FileUtils.rm(archive(:data))
"File created: #{archive(:data)}.gpg"
end
def decrypt(type = :credentials)
return unless %i(credentials data).include? type
return unless executable?('gpg')
unless File.exists?("#{archive(type)}.gpg")
STDOUT.puts "File not found: #{archive(type)}.gpg"
return
end
system "gpg #{archive(type)}.gpg"
Dir.chdir(path) do
system "tar xf #{archive(type)}"
end
FileUtils.rm(archive(type))
"File processed: #{archive(type)}.gpg"
end
def executable?(name = 'gpg')
require 'mkmf'
rv = find_executable(name)
STDOUT.puts "#{name} executable not found" unless rv
FileUtils.rm_rf('mkmf.log')
rv
end
def file_list(mode)
return "credentials" if mode.eql?(:all)
"#{creds_path}/vault-password.txt"
end
def archive(type = :credentials)
t_path = type.eql?(:credentials) ? creds_path : path
"#{t_path}/#{host_name('-')}-#{type}.tar"
end
def host_name(delimiter = '.')
Dir.pwd.split('/').pop(2).reverse.join(delimiter)
end
def data_path
"#{path}/data"
end
def creds_path
"#{path}/credentials"
end
def path
'.'
end
end
end