[galene] Deploy nginx and certbot

Signed-off-by: Yohann D'ANELLO <ynerant@crans.org>

plays/galene.yml

+#!/usr/bin/env ansible-playbook
+---
+- hosts: galene
+  vars:
+    certbot: "{{ loc_certbot | default(glob_certbot | default([])) }}"
+    galene: "{{ glob_galene | default({}) | combine(loc_galene | default({})) }}"
+    nginx: "{{ glob_nginx | default({}) | combine(service_nginx | default({})) | combine(loc_nginx | default({})) }}"
+  roles:
+    - certbot
+    - nginx
+  # - galene