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# == Schema Information
#
# Table name: terraform_libvirt_backends
#
# id :integer not null, primary key
# label :string
# uri :string
# created_at :datetime not null
# updated_at :datetime not null
#
require 'fileutils'
require 'ruby_terraform'
class Backends::TerraformLibvirt < ApplicationRecord
has_many :mini_environments, as: :backend
self.table_name = "terraform_libvirt_backends"
def self.label
"libvirt"
end
def type_and_id
"#{self.class.name}=#{id}"
end
def build(mini_environment)
GovukGuix::GenerateVmImageAndSystemJob.enqueue(
mini_environment.id
)
end
def start(mini_environment)
logger.info "Setting up #{mini_environment.name}"
source = File.expand_path("terraform/libvirt")
FileUtils.mkdir_p working_directory(mini_environment)
Dir.chdir(working_directory(mini_environment)) do
if Dir.empty?(".")
RubyTerraform.init(
backend: true,
from_module: source,
backend_config: {
address: terraform_backend_address(mini_environment)
},
plugin_dir: plugin_dir
)
end
RubyTerraform.apply(
vars: terraform_variables(mini_environment),
auto_approve: true
)
end
end
def destroy(mini_environment)
Dir.chdir(working_directory(mini_environment)) do
RubyTerraform.destroy(
vars: terraform_variables(mini_environment),
force: true
)
end
end
def terraform_variables(mini_environment)
mini_environment.backend_data.merge(
uri: self.uri,
machine_name: mini_environment.name.parameterize,
)
end
def terraform_backend_address(mini_environment)
(
'http://localhost:3000' +
Rails
.application
.routes
.url_helpers
.mini_environment_terraform_http_backend_path(
mini_environment
)
)
end
def working_directory(mini_environment)
"tmp/terraform-working-directories/#{mini_environment.name}"
end
def plugin_dir
ENV['PATH'].split(':').first
end
def ssh_public_key
File.open("#{ENV['HOME']}/.ssh/id_rsa.pub") do |file|
file.readline()
end
end
end
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