I’ve posted a similar method here: https://gist.github.com/3722252
This uses cloud-init rather than a custom script (pros and cons there) in
the user-data and works on recent Ubuntu AMIs. I believe Amazon have also
forked cloud-init to make it work on Amazon Linux, CentOS, etc. I’ve only
ever used it with Ubuntu though.
On 14 September 2012 15:04, Edward Sargisson firstname.lastname@example.org wrote:
Point 2 doesn’t require a custom AMI if you don’t want it to. You can do
autoscaling with a virgin AMI and use user-data bootstrapping to get
chef-client on there and running.
Details on my site here:
On Thu, Sep 13, 2012 at 9:15 AM, John Martinez email@example.com:
On Sep 13, 2012, at 9:01 AM, Daniel DeLeo firstname.lastname@example.org wrote:
On Thursday, September 13, 2012 at 7:46 AM, Maven User wrote:
Hi all -
With knife’s ec2 plugin (which is awesome), I can create and instance
from an ami, but I cannot go the other way.
The use case is this:
virgin ubuntu 12.X ami -> knife clone/bootstrap with our product ->
create ami from this instance (for consumption elsewhere)
Before I start diving down this rabbit hole, is/was there a reason NOT to
do this? Time? Or was there a technical reason? Does this feature exist
and I don’t see it?
Just curious, seems like a good feature to have but don’t want to waste a
ton of time if there was a technical reason NOT to do this.
Creating an AMI is an involved process. Most people only follow the
pattern you describe when their initial chef-client runs take a prohibitive
amount of time and they need really fast instance creation for things like
Concur. From my experience, the two main reasons I use to create custom
AMIs in AWS to use in conjunction with Chef:
- To cut-down on instance boot up time (as described by Daniel)
- You are using Autoscaling or CloudFormation where the knife API
command can’t be used
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