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Ansible strongSwan Role

An Ansible role for the configuration of strongSwan will support for Arch Linux, RHEL/CentOS, and Debian/Ubuntu.

Requirements

This module as of right now only works on Arch, provided you install the package via the AUR, and you have UFW managing the firewall and have patched it to support GRE tunnels. This will need to be resolved before the role can be released publicly and/or added to Ansible Galaxy.

strongSwan version >= 5.0.0 may also be required. This hasn't been confirmed yet.

Role Variables

strongswan_packages:
  - strongswan

Current list of packages to be installed. At the moment this is Arch Linux specific.

strongswan_conn_default:
  auto: add
  type: tunnel
  authby: psk
  keyexchange: ike
  ikelifetime: 3h
  lifetime: 60m
  margintime: 15m
  keyingtries: 3
  dpdaction: restart
  dpddelay: 30

Current defaults placed into the %default connection. Most of these follow the typical defaults for strongSwan (as if version ~5.0.0).

strongswan_conn: []
# - name: connection_name
#   conn:
#     # connection options go here, e.g.
#     ike: aes256gcm16-modp2048!
#     esp: aes256gcm16-modp2048!
#   left:
#     address: local_address
#     # further left-hand options here
#   right:
#     address: remote_address
#     # further right-hand options here
#   secret: abcde...z

Connection information to be installed into strongSwan.

Example Playbook

- hosts: ipsec_server
  roles:
     - { role: jonathanio.strongswan, tags: ['ipsec'] }

---
strongswan_hosts:
  - name: example
    conn:
      auto: route
      type: tunnel
      authby: psk
      keyexchange: ikev2
      lifetime: 3h
      ike: aes256gcm16-modp2048!
      esp: aes256gcm16-modp2048!
      ikelifetime: 24h
    left:
      address: 0.0.0.0/0
      subnet: 192.168.100.0/24
      protoport: 47
      id: my
      updown: /usr/lib/ipsec/_updown_nat
    right:
      address: 87.65.43.21
      subnet: 192.168.101.0/24
      protoport: 47
      id: your
      updown: /usr/lib/ipsec/_updown_nat
    secret: something_needs_to_go_here

License

GPLv2

Author Information

Jonathan Wright.