ansible-roles/openvpn/tasks/debian.yml

306 lines
8.3 KiB
YAML

---
- name: Install OpenVPN
apt:
name: openvpn
- name: Delete unwanted OpenVPN folders
file:
state: absent
dest: "/etc/openvpn/{{ item }}"
with_items:
- client
- server
- name: Create the _openvpn user
user:
name: _openvpn
system: yes
create_home: no
home: "/nonexistent"
shell: "/usr/sbin/nologin"
- name: Create the shellpki user
user:
name: shellpki
system: yes
create_home: no
home: "/etc/shellpki"
shell: "/usr/sbin/nologin"
- name: Create /etc/shellpki
file:
dest: "/etc/shellpki"
mode: "0755"
owner: shellpki
group: shellpki
state: directory
- include_role:
name: evolix/remount-usr
- name: Copy shellpki files
copy:
src: "shellpki/{{ item.source }}"
dest: "{{ item.destination }}"
mode: "{{ item.mode }}"
owner: "{{ item.owner }}"
group: "{{ item.group }}"
with_items:
- { source: "openssl.cnf", destination: "/etc/shellpki/openssl.cnf", mode: "0640", owner: "shellpki", group: "shellpki" }
- { source: "shellpki", destination: "/usr/local/sbin/shellpki", mode: "0755", owner: "root", group: "root" }
- name: Add sudo rights
lineinfile:
dest: "/etc/sudoers.d/shellpki"
regexp: '/usr/local/sbin/shellpki'
line: "%shellpki ALL = (root) /usr/local/sbin/shellpki"
create: yes
mode: "0400"
owner: root
group: root
validate: 'visudo -cf %s'
- name: Deploy OpenVPN client config template
template:
src: "ovpn.conf.j2"
dest: "/etc/shellpki/ovpn.conf"
mode: "0600"
owner: shellpki
group: shellpki
- name: Generate dhparam
openssl_dhparam:
path: /etc/shellpki/dh2048.pem
size: 2048
- include_role:
name: evolix/remount-usr
- name: Fix CRL rights in shellpki command
lineinfile:
dest: "/usr/local/sbin/shellpki"
regexp: '{{ item.regexp }}'
insertafter: "{{ item.insertafter }}"
line: "{{ item.line }}"
with_items:
- { regexp: '^ chmod 604 /etc/shellpki/crl.pem$', line: " chmod 604 /etc/shellpki/crl.pem", insertafter: '^ chmod 640 "\${CACERT}"$' }
- { regexp: '^ chmod 751 /etc/shellpki/$', line: " chmod 751 /etc/shellpki/", insertafter: '^ chmod 604 /etc/shellpki/crl.pem$' }
- name: Deploy OpenVPN server config
template:
src: "server.conf.j2"
dest: "/etc/openvpn/server.conf"
mode: "0600"
owner: root
group: root
- name: Is minifirewall installed ?
stat:
path: "/etc/default/minifirewall"
check_mode: no
changed_when: false
register: minifirewall_config
- name: Retrieve the default interface
shell: "grep '^INT=' /etc/default/minifirewall | cut -d\\' -f 2"
check_mode: no
changed_when: false
register: minifirewall_int
when: minifirewall_config.stat.exists
- name: Add minifirewall rule in config file
lineinfile:
dest: "/etc/default/minifirewall"
line: "{{ item }}"
with_items:
- "# OpenVPN"
- "/sbin/iptables -t nat -A POSTROUTING -s {{ openvpn_lan }}/{{ openvpn_netmask_cidr }} -o $INT -j MASQUERADE"
when: minifirewall_config.stat.exists
- name: Activate minifirewall rule
iptables:
table: nat
chain: POSTROUTING
source: "{{ openvpn_lan }}/{{ openvpn_netmask_cidr }}"
out_interface: "{{ minifirewall_int.stdout }}"
jump: MASQUERADE
when: minifirewall_config.stat.exists
- name: Add 1194/udp OpenVPN port to public services in minifirewall
replace:
dest: "/etc/default/minifirewall"
regexp: "^SERVICESUDP1='(.*)?'$"
replace: "SERVICESUDP1='\\1 1194'"
backup: yes
when: minifirewall_config.stat.exists
- name: Activate minifirewall rule for IPv4
iptables:
chain: INPUT
protocol: udp
destination_port: "1194"
jump: ACCEPT
ip_version: ipv4
when: minifirewall_config.stat.exists
- name: Activate minifirewall rule for IPv6
iptables:
chain: INPUT
protocol: udp
destination_port: "1194"
jump: ACCEPT
ip_version: ipv6
when: minifirewall_config.stat.exists
- name: Enable forwarding
sysctl:
name: net.ipv4.ip_forward
value: "1"
sysctl_file: "/etc/sysctl.d/openvpn.conf"
- name: Configure logrotate for OpenVPN
copy:
src: logrotate_openvpn
dest: /etc/logrotate.d/openvpn
force: no
- name: Generate a password for the management interface
set_fact:
management_pwd: "{{ lookup('password', '/dev/null length=15 chars=ascii_letters,digits') }}"
- name: Set the management password
copy:
dest: "/etc/openvpn/management-pwd"
content: "{{ management_pwd }}"
mode: "0600"
owner: root
group: root
- name: Enable openvpn service
systemd:
name: "openvpn@server.service"
enabled: yes
- name: Is NRPE installed ?
stat:
path: "/etc/nagios/nrpe.d/evolix.cfg"
check_mode: no
changed_when: false
register: nrpe_evolix_config
- name: Install NRPE check dependencies
apt:
name: libnet-telnet-perl
when: nrpe_evolix_config.stat.exists
- include_role:
name: evolix/remount-usr
- name: Install OpenVPN NRPE check
copy:
src: "files/check_openvpn_debian.pl"
dest: "/usr/local/lib/nagios/plugins/check_openvpn"
mode: "0755"
owner: root
group: nagios
when: nrpe_evolix_config.stat.exists
- name: Configure NRPE OpenVPN check
lineinfile:
dest: "/etc/nagios/nrpe.d/evolix.cfg"
regexp: '^command\[check_openvpn\]='
line: "command[check_openvpn]=/usr/local/lib/nagios/plugins/check_openvpn -H 127.0.0.1 -p 1195 -P {{ management_pwd }}"
notify: restart nagios-nrpe-server
when: nrpe_evolix_config.stat.exists
- include_role:
name: evolix/remount-usr
- name: Install OpenVPN certificates NRPE check
copy:
src: "files/check_openvpn_certificates.sh"
dest: "/usr/local/lib/nagios/plugins/check_openvpn_certificates.sh"
mode: "0755"
owner: root
group: nagios
when: nrpe_evolix_config.stat.exists
- name: Add sudo rights for NRPE check
lineinfile:
dest: "/etc/sudoers.d/openvpn"
regexp: 'check_openvpn_certificates.sh'
line: "nagios ALL=NOPASSWD: /usr/local/lib/nagios/plugins/check_openvpn_certificates.sh"
create: yes
mode: "0400"
owner: root
group: root
validate: 'visudo -cf %s'
when: nrpe_evolix_config.stat.exists
- name: Configure NRPE certificates check
lineinfile:
dest: "/etc/nagios/nrpe.d/evolix.cfg"
regexp: '^command\[check_openvpn_certificates\]='
line: "command[check_openvpn_certificates]=sudo /usr/local/lib/nagios/plugins/check_openvpn_certificates.sh"
notify: restart nagios-nrpe-server
when: nrpe_evolix_config.stat.exists
- include_role:
name: evolix/remount-usr
- name: Copy script to check expirations
copy:
src: "shellpki/cert-expirations.sh"
dest: "/usr/share/scripts/cert-expirations.sh"
mode: "0700"
owner: root
group: root
- name: Install cron to warn about certificates expiration
cron:
name: "OpenVPN certificates expiration"
special_time: monthly
job: '/usr/share/scripts/cert-expirations.sh | mail -E -s "PKI VPN {{ ansible_hostname }} : recapitulatif expirations" {{ client_email }}'
- name: Generate the CA password
set_fact:
ca_pwd: "{{ lookup('password', '/dev/null length=25 chars=ascii_letters,digits') }}"
check_mode: no
changed_when: no
- name: Initialization of the CA
shell: 'CA_PASSWORD="{{ ca_pwd }}" shellpki init --non-interactive {{ ansible_fqdn }}'
- name: Creation of the server's certificate
shell: 'CA_PASSWORD="{{ ca_pwd }}" shellpki create --days 3650 --non-interactive {{ ansible_fqdn }}'
- name: Get the server key
shell: 'ls -tr /etc/shellpki/private/ | tail -1'
register: ca_key
check_mode: no
changed_when: no
- name: Configure the server key
replace:
path: /etc/openvpn/server.conf
regexp: 'key /etc/shellpki/private/TO_COMPLETE'
replace: 'key /etc/shellpki/private/{{ ca_key.stdout }}'
- name: Restart OpenVPN
systemd:
name: "openvpn@server.service"
state: restarted
- name: Warn the user about manual checks
pause:
prompt: |
/!\ WARNING /!\
You must check and adjust if necessary the configuration file "/etc/openvpn/server.conf", and then restart the OpenVPN service with "systemctl restart openvpn@server.service".
The "push" parameter may be needed to push a route to the client, so that the client can access that route through OpenVPN.
Take note of the generated CA password and store it in your password manager : {{ ca_pwd }}
Press enter to exit when it's done.