Bastion Cookbook

A Chef cookbook for configuring a server to be used as a bastion host for
remote access to and administration of an otherwise walled-off network.

Requirements

This cookbook is written to hopefully work on, or be expandable to, other
distros, but is currently only tested against Ubuntu Linux.

As of v2.0.0, this cookbook requires Chef 12.5 or higher due to its dependency
on the docker cookbook.

Usage

Override any included attributes as needed and add bastion to your run_list.

Recipes

default

Refreshes the APT cache and configures the firewall and remote desktop (below).

dev_tools

Installs certain base dev tools--currently Git, Ruby, and Docker.

firewall

If the firewall enabled attribute is set to true (the default), enables the
system firewall and pokes holes in it for SSH (port 22) from an
attribute-specified set of trusted networks.

If the firewall is not set to enabled, it disables it.

remote_desktop

Installs X2go, Google Chrome, and Firefox.

logging

Installs + enables + starts Auditd, using rules based on the base STIG
ruleset.

greeting

Adds a configurable MOTD-style greeting for system users that (by default)
requires a user interaction before the session will continue.

Attributes

default

default['bastion']['firewall']['enabled'] = true

Whether or not the system firewall should be enabled. This can be overridden to
false if, for example, port access is instead being handled solely in your
cloud provider's security configuration.

default['bastion']['firewall']['trusted_networks'] = %w(
  10.0.0.0/8
  172.16.0.0/12
  192.168.0.0/16
)

The set of CIDR ranges to allow access from in the system firewall.

default['bastion']['greeting']['message']  = '...'
default['bastion']['greeting']['require_response'] = true

The greeting message can be customized as you see fit and the user interaction
requirement disabled if needed.

default['bastion']['docker']['options'] = {
  'bip' => '172.17.0.1/16',
  'dns' => '172.17.0.1'
}
default['dnsmasq_local']['config']['interface'] = 'docker0'

Use a local instance of dnsmasq as the DNS server for running Docker containers.
Set any additional keys+values under this attribute for them to be passed on
to the underlying docker_service resource.

default['bastion']['docker']['images'] = {}

Override with a set of image_name => true keys+values if you want Docker to
pull in a base set of images.

Contributing

1. Fork it
2. Create your feature branch (git checkout -b my-new-feature)
3. Add tests for the new feature; ensure they pass (rake)
4. Commit your changes (git commit -am 'Add some feature')
5. Push to the branch (git push origin my-new-feature)
6. Create a new Pull Request

License & Authors

• Author: Jonathan Hartman jonathan.hartman@socrata.com

Copyright 2015-2016, Socrata, Inc.

Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at

http://www.apache.org/licenses/LICENSE-2.0

Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.