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- name: Install strongSwan
apt: pkg={{ packages }}
vars:
packages:
- strongswan-charon
# for the GCM and openssl plugins
- libstrongswan-standard-plugins
notify:
- Update firewall
- Restart IPsec
- name: Auto-create a dedicated virtual subnet for IPsec
template: src=etc/network/if-up.d/ipsec.j2
dest=/etc/network/if-up.d/ipsec
owner=root group=root
mode=0755
- name: Auto-deactivate the dedicated virtual subnet for IPsec
file: src=../if-up.d/ipsec
dest=/etc/network/if-down.d/ipsec
owner=root group=root state=link force=yes
- meta: flush_handlers
- name: Configure IPsec
template: src=etc/ipsec.conf.j2
dest=/etc/ipsec.conf
owner=root group=root
mode=0644
register: r1
notify:
- Restart IPsec
- name: Configure IPsec's secrets
template: src=etc/ipsec.secrets.j2
dest=/etc/ipsec.secrets
owner=root group=root
mode=0600
register: r2
notify:
- Restart IPsec
- name: Configure Charon
copy: src=etc/strongswan.d/{{ item }}
dest=/etc/strongswan.d/{{ item }}
owner=root group=root
mode=0644
with_items:
- charon.conf
- charon/socket-default.conf
register: r3
notify:
- Restart IPsec
- name: Generate a key pair for IPsec public key authentication
command: genkeypair.sh keypair
--pubkey=/etc/ipsec.d/certs/{{ inventory_hostname_short }}.pem
--privkey=/etc/ipsec.d/private/{{ inventory_hostname_short }}.key
-t rsa -b 4096
register: r4
changed_when: r4.rc == 0
failed_when: r4.rc > 1
notify:
- Restart IPsec
tags:
- genkey
- name: Fetch the public part of IPsec host key
# Ensure we don't fetch private data
become: False
fetch: src=/etc/ipsec.d/certs/{{ inventory_hostname_short }}.pem
dest=certs/ipsec/{{ inventory_hostname_short }}.pem
fail_on_missing=yes flat=yes
tags:
- genkey
# Don't copy our pubkey due to a possible race condition. Only the
# remote machine has authority regarding its key.
- name: Copy the public part of IPsec peers' key
copy: src=certs/ipsec/{{ hostvars[item].inventory_hostname_short }}.pem
dest=/etc/ipsec.d/certs/{{ hostvars[item].inventory_hostname_short }}.pem
owner=root group=root
mode=0644
with_items: "{{ groups.all | difference([inventory_hostname]) }}"
register: r5
tags:
- genkey
notify:
- Restart IPsec
- name: Start IPsec
service: name=ipsec state=started
when: not (r1.changed or r2.changed or r3.changed or r4.changed or r5.changed)
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