Class: Cumulus::CloudFront::Manager

Inherits:
Cumulus::Common::Manager show all
Defined in:
lib/cloudfront/manager/Manager.rb

Instance Method Summary collapse

Methods inherited from Cumulus::Common::Manager

#diff, #diff_one, #filter_local, #list, #sync, #sync_one

Constructor Details

#initialize ⇒ Manager

Returns a new instance of Manager.



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# File 'lib/cloudfront/manager/Manager.rb', line 14

def initialize
  super()
  @cloudfront = Aws::CloudFront::Client.new(Configuration.instance.client)
end

Instance Method Details

#added_diff(local) ⇒ Object 



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# File 'lib/cloudfront/manager/Manager.rb', line 41

def added_diff(local)
  DistributionDiff.added(local)
end

#aws_resources ⇒ Object 



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# File 'lib/cloudfront/manager/Manager.rb', line 27

def aws_resources
  @aws_resources ||= CloudFront::id_distributions
end

#create(local) ⇒ Object 



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# File 'lib/cloudfront/manager/Manager.rb', line 116

def create(local)
  create_config = {
    distribution_config: {
      caller_reference: local.name,
      aliases: {
        quantity: local.aliases.size,
        items: if local.aliases.empty? then nil else local.aliases end
      },
      origins: {
        quantity: local.origins.size,
        items: if local.origins.empty? then nil else local.origins.map(&:to_aws) end
      },
      default_cache_behavior: local.default_cache_behavior.to_aws,
      cache_behaviors: {
        quantity: local.cache_behaviors.size,
        items: if local.cache_behaviors.empty? then nil else local.cache_behaviors.map(&:to_aws) end
      },
      comment: local.comment,
      enabled: local.enabled
    }
  }

  local.id = @cloudfront.create_distribution(create_config).distribution.id

  # Save the updated local config with id
  File.open("#{Configuration.instance.cloudfront.distributions_directory}/#{local.name}.json", "w") { |f| f.write(local.pretty_json) }
  puts "Distribution #{local.name} created with id #{local.id}"

rescue Aws::CloudFront::Errors::InvalidArgument => e
  if e.message =~ /OriginSslProtocols is required/
    puts Colors.red("Distribution #{local.name} must specify $.custom-origin-config.origin-ssl-protocols when \"protocol-policy\" is \"https-only\". Distribution not created")
    StatusCodes.set_status(StatusCodes::EXCEPTION)
  end
rescue => e
  puts "Failed to create distribution #{local.name}\n#{e}"
end

#diff_resource(local, aws) ⇒ Object 



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# File 'lib/cloudfront/manager/Manager.rb', line 45

def diff_resource(local, aws)
  local.diff(full_distribution(aws.id).distribution_config)
end

#full_distribution(distribution_id) ⇒ Object 



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# File 'lib/cloudfront/manager/Manager.rb', line 31

def full_distribution(distribution_id)
  @full_aws_configs ||= Hash.new

  @full_aws_configs[distribution_id] ||= CloudFront::load_distribution_config(distribution_id)
end

#invalidate(invalidation_name) ⇒ Object 



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# File 'lib/cloudfront/manager/Manager.rb', line 161

def invalidate(invalidation_name)

  invalidation = invalidations[invalidation_name]

  # Use a combination of the current time and md5 of paths to prevent
  # identical invalidations from being ran too often
  time_throttle = (Time.now.to_i / 60 / 5)
  md5 = Digest::MD5.hexdigest(invalidation.paths.join)[0..5]

  @cloudfront.create_invalidation({
    distribution_id: invalidation.distribution_id,
    invalidation_batch: {
      paths: {
        quantity: invalidation.paths.size,
        items: if !invalidation.paths.empty? then invalidation.paths end
      },
      caller_reference: "#{invalidation_name}-#{md5}-#{time_throttle}"
    }
  })

end

#invalidations ⇒ Object 



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# File 'lib/cloudfront/manager/Manager.rb', line 153

def invalidations
  @invalidations ||= Hash[Loader.invalidations.map { |local| [local.name, local] }]
end

#list_invalidations ⇒ Object 



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# File 'lib/cloudfront/manager/Manager.rb', line 157

def list_invalidations
  puts invalidations.keys.join(" ")
end

#local_resources ⇒ Object 



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# File 'lib/cloudfront/manager/Manager.rb', line 23

def local_resources
  @local_resources ||= Hash[Loader.distributions.map { |local| [local.id, local] }]
end

#migrate ⇒ Object

Migrate AWS CloudFront distributions to local config



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# File 'lib/cloudfront/manager/Manager.rb', line 50

def migrate
  distributions_dir = "#{@migration_root}/distributions"

  if !Dir.exists?(@migration_root)
    Dir.mkdir(@migration_root)
  end
  if !Dir.exists?(distributions_dir)
    Dir.mkdir(distributions_dir)
  end

  aws_resources.each_key do |dist_id|
    puts "Processing #{dist_id}..."
    full_config = full_distribution(dist_id).distribution_config

    config = DistributionConfig.new(dist_id)
    config.populate!(dist_id, full_config)

    puts "Writing #{dist_id} configuration to file"
    File.open("#{distributions_dir}/#{dist_id}.json", "w") { |f| f.write(config.pretty_json) }
  end
end

#resource_name ⇒ Object 



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# File 'lib/cloudfront/manager/Manager.rb', line 19

def resource_name
  "CloudFront Distribution"
end

#unmanaged_diff(aws) ⇒ Object 



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# File 'lib/cloudfront/manager/Manager.rb', line 37

def unmanaged_diff(aws)
  DistributionDiff.unmanaged(aws)
end

#update(local, diffs) ⇒ Object 



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# File 'lib/cloudfront/manager/Manager.rb', line 72

def update(local, diffs)
  if !diffs.empty?
    full_aws_response = full_distribution(local.id)

    aws_config = full_aws_response.distribution_config

    updated_config = {
      aliases: {
        quantity: local.aliases.size,
        items: if local.aliases.empty? then nil else local.aliases end
      },
      origins: {
        quantity: local.origins.size,
        items: if local.origins.empty? then nil else local.origins.map(&:to_aws) end
      },
      default_cache_behavior: local.default_cache_behavior.to_aws,
      cache_behaviors: {
        quantity: local.cache_behaviors.size,
        items: if local.cache_behaviors.empty? then nil else local.cache_behaviors.map(&:to_aws) end
      },
      comment: local.comment,
      enabled: local.enabled
    }

    update_params = {
      id: local.id,
      if_match: full_aws_response.etag,
      distribution_config: aws_config.to_h.merge(updated_config),
    }

    begin
      @cloudfront.update_distribution(update_params)
    rescue Aws::CloudFront::Errors::InvalidArgument => e
      if e.message =~ /OriginSslProtocols is required/
        puts Colors.red("Distribution #{local.name} must specify $.custom-origin-config.origin-ssl-protocols when \"protocol-policy\" is \"https-only\". Distribution not updated")
        StatusCodes.set_status(StatusCodes::EXCEPTION)
      else
        throw e
      end
    end
  end

end