Change timezone on Rocks Cluster

On Rocks Cluster when install new compute node, timezone will same as frontend. If we want to change existing rocks, we use command “timedatectl” to change.

But when new compute installing, it still set default time zone, we must change attribute Kickstart_Timezone in frontend.

Example : change time zone to America/Newyork to Asia/Bangkok

### change timezone for frontend and compute

# timedatectl set-timezone Asia/Bangkok
# tentakel timedatectl set-timezone Asia/Bangkok

### change attribute Kickstart_Timezone for new compute installed

# rocks set attr Kickstart_Timezone Asia/Bangkok