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# GOV.UK Mini Environment Admin
# Copyright © 2018 Christopher Baines <mail@cbaines.net>
#
# This file is part of the GOV.UK Mini Environment Admin.
#
# The GOV.UK Mini Environment Admin is free software: you can
# redistribute it and/or modify it under the terms of the GNU Affero
# General Public License as published by the Free Software Foundation,
# either version 3 of the License, or (at your option) any later
# version.
#
# The GOV.UK Mini Environment Admin is distributed in the hope that it
# will be useful, but WITHOUT ANY WARRANTY; without even the implied
# warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
# See the GNU Affero General Public License for more details.
#
# You should have received a copy of the GNU Affero General Public
# License along with the GOV.UK Mini Environment Admin. If not, see
# <http://www.gnu.org/licenses/>.
require 'fileutils'
class TerraformWorkingDirectory
def initialize(id, source)
@id = id
@source = source
end
def working_directory
"tmp/terraform-working-directories/#{@id}"
end
def within_working_directory
if Rails.env.development? && Dir.exist?(working_directory)
# For the purposes of development, always clear the working
# directory. This ensures that fresh terraform configuration
# will be copied over
FileUtils.remove_dir(working_directory)
end
source = File.expand_path(@source)
FileUtils.mkdir_p working_directory
Dir.chdir(working_directory) do
if Dir.empty?('.')
credentials = TerraformHttpBackendController.credentials
RubyTerraform.init(
backend: true,
from_module: source,
backend_config: {
address: terraform_backend_address,
username: credentials[:name],
password: credentials[:password]
},
plugin_dir: terraform_plugin_dir
)
end
yield
end
end
def terraform_backend_address
(
Plek.new.external_url_for('mini-environment-admin') +
Rails
.application
.routes
.url_helpers
.terraform_http_backend_path(@id)
)
end
def terraform_plugin_dir
ENV['PATH'].split(':').first
end
end
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