Contents

require 'aws-sdk'
require 'bora/cfn/stack'

class Bora
  module Resolver
    class Credstash
      InvalidParameter = Class.new(StandardError)

      def initialize(stack)
        @stack = stack
      end

      def resolve(uri)
        raise InvalidParameter, "Invalid credstash parameter #{uri}: no credstash key" if !uri.path
        key = uri.path[1..-1]
        raise InvalidParameter, "Invalid credstash parameter #{uri}: no credstash key" if !key || key.empty?
        region = resolve_region(uri, @stack)
        context = parse_key_context(uri)
        output = `credstash --region #{region} get #{key}#{context}`
        exit_code = $?
        raise NotFound, output if exit_code.exitstatus != 0
        output.rstrip
      end


      private

      def resolve_region(uri, stack)
        region = uri.host || stack.region || Aws::CloudFormation::Client.new.config[:region]
      end

      def parse_key_context(uri)
        return "" if !uri.query
        query = URI::decode_www_form(uri.query).to_h
        context_params = query.map { |k,v| "#{k}=#{v}" }.join(" ")
        " #{context_params}"
      end

    end
  end
end

Version data entries

4 entries across 4 versions & 1 rubygems

Version	Path
bora-1.3.0	lib/bora/resolver/credstash.rb
bora-1.2.0	lib/bora/resolver/credstash.rb
bora-1.1.1	lib/bora/resolver/credstash.rb
bora-1.1.0	lib/bora/resolver/credstash.rb