vaultenv

#!/usr/bin/env ruby
# Read an environment variable from the local keyserver
#
# Can be used to initialize environment variables.
#
# export PASSWORD=$( vaultenv db/password )
#
# Author::    Michael Heijmans  (mailto:parabuzzle@gmail.com)
# Copyright:: Copyright (c) 2016 Michael Heijmans
# License::   MIT

require '/lib/vault_loader.rb'

vault = VaultLoader.new

unless ARGV.length > 0
  puts "usage: vaultenv key"
  exit 1
end

begin
  if val = vault.read(ARGV[0])
    $stderr.puts "fetched #{ARGV[0]} from #{vault.address}"
    puts val
  else
    exit 1
  end
rescue Vault::HTTPConnectionError
  $stderr.puts "attempting to fetch the value of #{ARGV[0]} from #{vault.address}"
  exit 2
rescue Errno::ECONNREFUSED, Net::OpenTimeout
  $stderr.puts "Timeout while connecting to #{vault.address}"
  exit 2
rescue StandardError => e
  $stderr.puts e
  exit 2
end