Is it possible to set the fully qualified domain name from a bash script?
I am using Ubuntu 12.04 LTS. I have an autoscaling group on Amazon and I am using Puppet for configuration.
For example, I would like to use admin.staging.mycompany.net as a FQDN for all instances in the autoscaling group. I can run a bash script when the autoscaling group fires new instances.
Since Puppet uses the fully qualified domain name to figure out which manifest to apply, I need to come up with a way to set a new EC2 instance's FQDN from a bash script, so the autoscaling group can fire up a new instance and apply the correct Puppet manifest.
I don't want to ssh to instances and manually change /etc/hosts and /etc/hostname as that would defeat the point of the autoscaling group.
