Share Host AWS Credentials with Vagrant Guest

vagrantfile.rb

# Copy AWS credentials and config from host to guest
$aws_credentials_path   = ENV['HOME'] + "/.aws/credentials"
$aws_config_path        = ENV['HOME'] + "/.aws/config"

if File.file?($aws_credentials_path) && File.file?($aws_config_path) then
  config.vm.provision "shell", 
      inline: "mkdir -p /root/.aws", 
      privileged: true
  config.vm.provision "shell", 
      inline: "mkdir -p /home/nginx/.aws", 
      privileged: true
  config.vm.provision "file", 
      source: $aws_credentials_path, 
      destination: "/home/vagrant/.aws/credentials"
  config.vm.provision "shell", 
      inline: "/bin/cp -f /home/vagrant/.aws/credentials /root/.aws/credentials", 
      privileged: true
  config.vm.provision "shell", 
      inline: "/bin/cp -f /home/vagrant/.aws/credentials /home/nginx/.aws/credentials", 
      privileged: true
  config.vm.provision "shell",
    inline: "chown nginx:nginx /home/nginx/.aws/credentials && chmod 0644 /home/nginx/.aws/credentials", 
    privileged: true
  config.vm.provision "file", 
    source: $aws_config_path, 
    destination: "/home/vagrant/.aws/config"
  config.vm.provision "shell", 
    inline: "/bin/cp -f /home/vagrant/.aws/config /root/.aws/config", 
    privileged: true
  config.vm.provision "shell", 
    inline: "/bin/cp -f /home/vagrant/.aws/config /home/nginx/.aws/config", 
    privileged: true
  config.vm.provision "shell", 
    inline: "chown nginx:nginx /home/nginx/.aws/config && chmod 0644 /home/nginx/.aws/config", 
    privileged: true
else
  puts "AWS Credentials do not exist on host!"
end