Module: Pangea::Processor

Defined in:
lib/pangea/processor.rb

Overview

ingests files and builds a context for rendering Pangea programming

Class Method Summary collapse

Class Method Details

.bin ⇒ Object 



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# File 'lib/pangea/processor.rb', line 39

def bin
  'tofu'
end

.config ⇒ Object 



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# File 'lib/pangea/processor.rb', line 25

def config
  @config ||= Pangea::Utils.symbolize(
    Pangea::Config.config
  )
end

.namespace ⇒ Object 



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# File 'lib/pangea/processor.rb', line 31

def namespace
  @namespace ||= ENV.fetch('PANGEA_NAMESPACE')
end

.namespace_config ⇒ Object 



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# File 'lib/pangea/processor.rb', line 43

def namespace_config
  sns = ''
  config[:namespaces].each_key do |ns|
    sns = config[:namespaces][ns] if ns.to_s.eql?(namespace.to_s)
  end
  @namespace_config ||= sns
end

.process(content) ⇒ Object 



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# File 'lib/pangea/processor.rb', line 17

def process(content)
  instance_eval(content)
end

.register_action(action) ⇒ Object 



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# File 'lib/pangea/processor.rb', line 12

def register_action(action)
  permitted_actions = i[plan apply show destroy]
  @action = action if permitted_actions.map(&:to_s).include?(action.to_s)
end

.s3 ⇒ Object 



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# File 'lib/pangea/processor.rb', line 35

def s3
  @s3 = Aws::S3::Client.new
end

.synthesizer ⇒ Object 



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# File 'lib/pangea/processor.rb', line 21

def synthesizer
  @synthesizer ||= TerraformSynthesizer.new
end

.template(name, &block) ⇒ Object 



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# File 'lib/pangea/processor.rb', line 51

def template(name, &block)
  prefix = "#{namespace}/#{name}"
  pangea_home = %(#{Dir.home}/.pangea/#{namespace})
  local_cache = File.join(pangea_home, prefix)
  `mkdir -p #{local_cache}` unless Dir.exist?(local_cache)
  synthesizer.synthesize(&block)
  sns = namespace_config
  unless synthesizer.synthesis[:terraform]
    synthesizer.synthesize do
      terraform do
        backend(
          s3: {
            key: prefix,
            dynamodb_table: sns[:state][:config][:lock].to_s,
            bucket: sns[:state][:config][:bucket].to_s,
            region: sns[:state][:config][:region].to_s,
            encrypt: true
          }
        )
      end
    end
  end
  File.write(
    File.join(
      local_cache, 'main.tf.json'
    ), JSON[synthesizer.synthesis]
  )

  system("cd #{local_cache} && #{bin} init -input=false") unless File.exist?(
    File.join(
      local_cache,
      '.terraform.lock.hcl'
    )
  )

  if @action.to_s == 'apply'
    system "cd #{local_cache} && #{bin} apply -auto-approve"
  elsif @action.to_s == 'plan'
    system "cd #{local_cache} && #{bin} plan"
  elsif @action.to_s == 'destroy'
    system "cd #{local_cache} && #{bin} destroy -auto-approve"
  end

  template = Pangea::Utils.symbolize(
    JSON[File.read(
      File.join(local_cache, 'main.tf.json')
    )]
  )
  puts JSON.pretty_generate(template) if @action.to_s.eql?('show')
  { template: template }
end