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strongswan

Nextdoor strongSwan Management Module

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Version information

  • 0.0.2 (latest)
  • 0.0.1
released Jan 13th 2015
This version is compatible with:
  • Puppet 3.x
  • ,

Start using this module

  • r10k or Code Manager
  • Bolt
  • Manual installation
  • Direct download

Add this module to your Puppetfile:

mod 'Nextdoor-strongswan', '0.0.2'
Learn more about managing modules with a Puppetfile

Add this module to your Bolt project:

bolt module add Nextdoor-strongswan
Learn more about using this module with an existing project

Manually install this module globally with Puppet module tool:

puppet module install Nextdoor-strongswan --version 0.0.2

Direct download is not typically how you would use a Puppet module to manage your infrastructure, but you may want to download the module in order to inspect the code.

Download

Documentation

Nextdoor/strongswan — version 0.0.2 Jan 13th 2015

Table of Contents

  1. Overview
  2. Module Description
  3. Usage
  4. Pre-defined Tunnel Types

Overview

This module installs and manages strongSwan daemon on a host. For detailed information about strongSwan, please see its website and the wiki.

Setup

The initial setup of the module happens in the main strongswan puppet class. The defaults are relatively safe, but we allow you to overwrite as many settings as you wish, as long as you instantiate the main class before calling any of the resource definitions.

Usage

Class: strongswan

class { 'strongswan':
  charon_options     => <charon options>,
  conn_conf_path     => <path to store connections>,
  ipsec_options      => <ipsec options>,
  secrets_conf_path  => <path to store secrets>,
  service_name       => <ipsec service name>,
  service_ensure     => <ipsec service ensure>,
  service_enable     => <ipsec service enable bool>,
  strongswan_package => <strongswan package name>,
  strongswan_version => <strongswan version num>,
  strongswan_plugins => <strongswan plugins list>,
}

charon_options

A hash of custom options for the /etc/strongswan.d/charon.conf file (default: {})

conn_conf_path

Directory to store individual IPSec Connection configuration files in. (default: /etc/ipsec.d/conns)

ipsec_options

A hash of settings for the 'config settings' section of the /etc/ipsec.conf file. (default: {})

secrets_conf_path

Directory to store individual IPSec Connection secret files in. (default: /etc/ipsec.d/secrets)

service_name

Name of the StrongSwan service daemon. (default: strongswan)

service_ensure

Whether to ensure the service is running or not. (default: running)

service_enable

Whether to enable the strongswan service on system startup. (default: true)

strongswan_package

Name of the Strongswan package to install. (default: strongswan)

strongswan_version

Version of the Strongswan packages to install. (default: installed)

strongswan_plugins

(default: [ strongswan-plugin-unity, strongswan-plugin-xauth-pam ])

Definition: strongswan::conn

strongswan::conn { 'myconn':
  params  => <hash of custom connection parameters>
  secrets => <array of hashes of secrets>
}

params

A hash that contains all of the key=>value parameters for your connection. Expects that you know all of the parameters required, and it will fill them in exactly as you've supplied.

{ 'keyexchange' => 'ikev2',
  'auto'        => 'start',
  'esp'         => 'aes128-sha1-modp1024',
  'ikelifetime' => '28800s',
  'keylife'     => '3600s',
  'rekey'       => 'no',
  'reauth'      => 'no',
  'authby'      => 'secret',
  'closeaction' => 'restart',
  'dpddelay'    => '10s',
  'dpdtimeout'  => '30s',
  'dpdaction'   => 'restart',
  'rightsubnet' => $vpc_subnet,
  'leftid'      => $customer_gateway_ip,
  'leftsubnet'  => $customer_subnet,
  'right'       => $ipsec_1_vpg_ip,
  'rightid'     => $ipsec_1_vpg_ip
}

secrets

An array of hashes that list the secrets for the connection. Eg:

[ { 'left_id' => '10.0.0.1', 'right_id' => '%any',
    'auth'    => 'PSK', 'key' => 'xYsdfkjkasd' },
  { 'left_id' => '10.0.0.2', 'right_id' => '%any',
    'auth'    => 'PSK', 'key' => 'xYsdfkjkasd' },
]

Presets

Class: strongswan::presets::pam_authed_vpn

Configures your server as a VPN endpoint for incoming Cisco IPSEC VPN clients (like iOS, Android, Mac OSX, etc). Uses simple local PAM for user authentication.

class { 'strongswan::presets::pam_authed_vpn':
  client_source_ip => '0.0.0.0/0',
  dns              => [ '8.8.8.8', '8.8.4.4' ],
  routed_ip_cidr   => '10.0.0.0/8',
  private_ip_cidr  => '192.168.0.0/24',
  private_ip       => '192.168.0.1',
}

client_source_ip

IP CIDR to accept VPN connection requests from. (default: 0.0.0.0/0)

dns

A list of DNS servers to pass to the VPN clients. (default: [ 8.8.8.8, 8.8.4.4 ])

routed_ip_cidr

The IP range thats passed to the VPN clients as the 'routed' range. Defaults to 0.0.0.0/0, which means to pass all traffic through the VPN client. Narrowing this down to some other range (like 10.0.0.0/8) will cause split-tunneling, allowing the client to go directly to the internet for most traffic, but over the VPN for specific traffic. (default: 0.0.0.0/0)

private_ip_cidr

Private IP CIDR range to hand addresses out to VPN clients. (default: 192.168.0.0/22)

private_ip

Private IP that the VPN server will use for routing VPN client data. (default: 192.168.0.1/22)

Definition: strongswan::presets::aws_vpc

Configures a VPN connection into an Amazon VPC following their Generic Customer Gateway without Border Gateway Protocol model. Creates two outbound, policy based VPN tunnels to the Amazon VPN endpoints. Only one tunnel can be used at any given moment, but automatic failover happens when one of the AWS endpoints shuts down.

strongswan::presets::aws_vpc { 'myVPC':
  customer_gateway_ip => <your servers eIP>,
  customer_subnet     => <your servers CIDR block>,
  ipsec_1_vpg_ip      => <AWS VPC IPSec #1 Endpoint>,
  ipsec_1_psk         => <PSK for IPSec #1 Endpoint>,
  ipsec_2_vpg_ip      => <AWS VPC IPSec #2 Endpoint>,
  ipsec_2_psk         => <PSK for IPSec #2 Endpoint>,
  vpc_subnet          => <your VPC CIDR block>,
}

customer_gateway_ip

(Line 77 of the Generic VPC Configuration from Amazon)

customer_subnet

The subnet on the 'left' (client) side of the tunnel. Can be as small as a /32, or as large as you want. Should match whatever static route you have configured in your VPN Connection endpoint in Amazon.

ipsec_1_vpg_ip

(Line 78 of the Generic VPC Configuration from Amazon)

ipsec_1_psk

(Line 25 of the Generic VPC Configuration from Amazon)

ipsec_2_vpg_ip

(Line 162 of the Generic VPC Configuration from Amazon)

ipsec_2_psk

(Line 109 of the Generic VPC Configuration from Amazon)

Definition: strongswan::presets::meraki_vpn

Configures an incoming VPN service for a Meraki MX-series router using IKEv1 per their documentation.

strongswan::presets::meraki_vpn { 'our-office':
  meraki_public_ip => <your meraki/office public ip address>,
  meraki_subnet    => <your internal office subnet>,
  swan_public_ip   => <your strongswan server public address>,
  swan_subnet      => <your strongswan server private subnet>,
  psk              => <pre-shared-key>
  masquerade       => <whether or not to enable ip masquerading>
}

meraki_public_ip

The Public IPv4 address that your Meraki has on the Internet. Used to configure inbound access through the Firewall to the network

meraki_subnet

The IP CIDR that your Meraki is hosting behind it. Likely matches the range described in the 'Local networks' section of the site-to-site VPN page.

swan_public_ip

The public IP address of the strongSwan server -- used to help handle NAT-Traversal issues.

swan_subnet

The IP CIDR that you want your strongSwan server to provide access to your Merakis. Should exactly match the Private subnets configuration option in the Meraki site-to-site VPN page.

psk

The pre-shared-key you've entered into your Meraki site-to-site VPN page.

masquerade

Either present or absent: Whether or not to enable IP masquerading on the strongSwan host.