roles/zabbix-server: Redirect HTTP -> HTTPS

roles/zabbix-server/templates/zabbix-redir.httpd.conf.j2

@@ -3,4 +3,12 @@
 # Automatically redirect requests for / to /zabbix/
 {% if zabbix_web_redir|bool %}
 RedirectMatch 301 ^/$ /zabbix/
+
+RewriteEngine On
+RewriteCond %{HTTPS} !on
+RewriteRule /.* https://%{SERVER_NAME}$0 [R=301,L]
+
+Header always set \
+	Strict-Transport-Security "max-age=63072000; includeSubDomains"
+
 {% endif %}