Am 21.01.2014 03:37, schrieb Peter Romfeld: > I have a cluster where all nodes must use hostnames, so we use > /etc/hosts. I want to configure autoscaling for this cluster, but my > biggest problem is the hosts file, so when a new node comes up all > other nodes need to be notify that the hosts file changed, so the make > pull the new file.
Opposed to what Felix is thinking, my previous message was meant
seriously. I don't see a trivial solution to your problem that involves
Puppet and /etc/hosts. You'd need to:
1) Have the new node update the hosts file that Puppet delivers. What is
two noeds come up at the same time? You'd need proper locking.
2) Puppet agents only run every 30 minutes, so you'll have a delay until
all other nodes know the new one.
3) What happens when a node goes down?
OTOH, what you want to do can be achieved with DHCP and DNS, such that
the DHCP server updates DNS when a new client comes up.
Bye...
Dirk
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