roles/icinga2: support for backup ldap servers

roles/icinga2/defaults/main.yaml

@@ -2,6 +2,7 @@
 host_fqdn: '{{ ansible_hostname }}.dmz.{{ domain }}'
 icingaweb2_nginx_fqdn: '{{ ansible_hostname }}.{{ domain }}'
 ldap_server: 'ldap1.dmz.{{ domain }}'
+ldap_backup_servers: []
 ldap_basedn: 'dc={{ domain.replace(".", ",dc=") }}'
 ldap_tls_enabled: true
 ldap_tls_server_ca: '{{ tls_root_ca }}'

roles/icinga2/templates/icingaweb2/resources.ini.j2

@@ -1,6 +1,6 @@
 [icingaweb2-users-ldap]
 type = "ldap"
-hostname = "{{ ldap_server }}"
+hostname = "{{ ldap_server }}{% for s in ldap_backup_servers %} {{s}}{%endfor%}"
 port = "389"
 encryption = "starttls"
 root_dn = "{{ ldap_basedn }}"