Update ircbouncer role for LE certificate

roles/ircbouncer/tasks/znc.yml

   group: name=znc state=present
 
 - name: Create znc user
-  user: name=znc state=present home=/var/lib/znc system=yes group=znc shell=/usr/sbin/nologin
+  user: name=znc state=present home=/usr/lib/znc system=yes group=znc shell=/usr/sbin/nologin
 
 - name: Ensure pid directory exists
   file: state=directory path=/var/run/znc group=znc owner=znc
 - name: Copy znc service file into place
   copy: src=etc_systemd_system_znc.service dest=/etc/systemd/system/znc.service mode=0644
 
-- name: Create a combined version of the private key with public cert and intermediate + root CAs
-  shell: cat /etc/ssl/private/wildcard_private.key /etc/ssl/certs/wildcard_combined.pem >
-    /usr/lib/znc/znc.pem creates=/usr/lib/znc/znc.pem
+- name: Create a combined version of the SSL private key and full certificate chain
+  shell: cat /etc/letsencrypt/live/{{ domain }}/privkey.pem
+    /etc/letsencrypt/live/{{ domain }}/fullchain.pem >
+    /usr/lib/znc/znc.pem
+    creates=/usr/lib/znc/znc.pem
   notify: restart znc
 
 - name: Ensure znc user and group can read cert