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iiab/roles/openvpn/tasks/enable-or-disable.yml

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# FIXED SOMETIME PRIOR TO AUGUST 2018: earlier versions of Ansible had not
# been working with systemd service names that contained the "@" character.
#- name: Enable the OpenVPN tunnel at boot time (debuntu)
# shell: systemctl enable openvpn@xscenet.service
# when: openvpn_enabled and not stat.exists is defined and is_debuntu
#- name: Enable the OpenVPN tunnel at boot time (debuntu)
# shell: update-rc.d openvpn enable
# when: openvpn_enabled and not stat.exists is defined and is_debuntu
#- name: Start the OpenVPN tunnel now
# shell: systemctl start openvpn@xscenet.service
# when: openvpn_enabled and not stat.exists is defined and not installing
# AUGUST 2018: Unexplainably, stanza below had to be placed underneath ANY
# "lineinfile: ... state: absent" stanza to make openvpn_handle propagate
# properly to xscenet.net (monitoring ncat's erroneous handle parameter by
# observing "systemctl status openvpn@xscenet" helped trace the [primary?]
# bug to roles/openvpn/templates/announcer [far better now if not perfect?])
# Earlier "./runrole openvpn" had to be run twice to transmit
# /etc/iiab/openvpn_handle to xscenet.net -- and
# "systemctl restart openvpn@xscenet" was failing completely (no matter how
# many times it was run) to transmit /etc/iiab/openvpn_handle to xscenet.net
# 2018-09-02: OpenVPN had been starting tunnels by accident after reboot,
# with new IIAB installs. Fix below (https://github.com/iiab/iiab/pull/1079)
# changes most all instances below from CHILD service "openvpn@xscenet" to
# PARENT service "openpvn". See these critical files to understand why:
#
# /etc/default/openvpn implies AUTOSTART="all"
# /etc/init.d/openvpn has AUTOSTART="all"
# /etc/openvpn/xscenet.conf our VPN connection
# /etc/network/if-up.d/openvpn appears to auto-start xscenet.conf
# /lib/systemd/systemd-sysv-install sets /etc/rc*.d/S|K01openvpn
# e.g. when "systemctl enable openvpn"
- name: Enable & (Re)Start PARENT 'openvpn' system service, which (re)starts CHILD service 'openvpn@xscenet' (& actual tunnel)
systemd:
name: openvpn
daemon_reload: yes
enabled: yes
state: restarted # 2018-09-02: Should we be concerned that "systemctl status openvpn" often shows "active (exited)" ? If so we might consider "state: started" or "state: reloaded" instead?
when: openvpn_enabled
- name: Enable hourly cron job for OpenVPN (starts CHILD service openvpn@xscenet, typically for CentOS only?)
lineinfile:
path: /etc/crontab
# CONSIDER "restart" not just "start" if something stronger is confirmed needed?
line: "25 * * * * root (/usr/bin/systemctl start openvpn@xscenet.service) > /dev/null"
when: openvpn_enabled and openvpn_cron_enabled
- name: Remove hourly cron job for OpenVPN (typically for CentOS only?)
lineinfile:
path: /etc/crontab
regexp: "openvpn@xscenet"
# Potentially DANGEROUS as others use systemctl too:
#regexp: ".*/usr/bin/systemctl*"
state: absent
when: not openvpn_enabled or not openvpn_cron_enabled
- name: Disable & Stop PARENT 'openvpn' system service, which stops CHILD service 'openvpn@xscenet' (& actual tunnel)
systemd:
name: openvpn
enabled: no
state: stopped
when: not openvpn_enabled
#- name: Stop starting the OpenVPN tunnel at boot time (not debuntu)
# shell: systemctl disable openvpn@xscenet.service
# when: not openvpn_enabled and not is_debuntu
#- name: Stop starting the OpenVPN tunnel at boot time (debuntu)
# shell: update-rc.d openvpn disable
# when: not openvpn_enabled and is_debuntu
#- name: Stop OpenVPN tunnel immediately
# shell: systemctl stop openvpn@xscenet.service
# ignore_errors: True
# when: not openvpn_enabled and not installing