Generally puppet doesn't "detect" new systems as such. The new systems tell the puppet server about themselves.
The way this is handled is your base instance install would include puppet. So, as the system boots up puppet would be running. The puppet agent will contact the master. The master would have autosigning setup, so it will automatically exchange certs with the new system. Then the behavior would continue as defined in the puppet configuration. Steven Date: Mon, 14 May 2012 11:30:04 -0700 From: dustye...@gmail.com To: puppet-users@googlegroups.com Subject: Re: [Puppet Users] Autoscaling with Puppet Scalr looks okay. I'll look into this. What I really meant was how does Puppet(master) detect a new instance is available in your autoscale group and deploy your modules. I guess that has more to do with notifications than autoscale, but thought I'd clarify. Thanks. On Monday, May 14, 2012 6:00:59 AM UTC-4, LoreLLo wrote: http://scalr.net/ I think they did away with the free version of it recently. But if you ask me what they're asking is well worth it! Autoscales up and down based on server load. Works with both AWS and rackspace cloud. -tim On Sun, May 13, 2012 at 9:28 PM, de <dustye...@gmail.com> wrote: > I have a specific need to use Puppet to Autoscale a few applications I have > deployed on EC2. I'm using Puppet now to manage and create instances and saw > a neat video on this subject. I'm missing the a piece of the puzzle. I'm > assuming I should use CloudWatch to send my puppetmaster a notification to > then create a new instance with the cloudformation module. To create autoscaling webfarms I use Scalr too. As Tim reported is a powerful cloud orchestration tool, available as an online service or as an opensource software (PHP/Python/JS) that you can install on your servers. I must confirm that there is no more free trial for the service and the pricing is based on the number of hosts you manage. > Does that sound about right? I looked into cloudformation, but that doesn't > seem right. I haven't tried it but I suppose that Cloudformation has some orchestration feature too: I think you can define an AutoScalingGroup and have CloudFormation starts a new host based on a predefined AMI when loadaverage of the hosts in the group reach some predefined level; you can choose a different metric if you prefer, like a webpage response time. Then I suppose you have to update your ELB configuration and probably something else ... All these tasks can be configured with a tool like Scalr through a web interface and this simplifies your life, but it's something to pay for, while cloudformation is a free feature on AWS, for what I remember. Hope this helps,L. -- You received this message because you are subscribed to the Google Groups "Puppet Users" group. To view this discussion on the web visit https://groups.google.com/d/msg/puppet-users/-/U41DUaMkB3sJ. To post to this group, send email to puppet-users@googlegroups.com. To unsubscribe from this group, send email to puppet-users+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/puppet-users?hl=en. -- You received this message because you are subscribed to the Google Groups "Puppet Users" group. To post to this group, send email to puppet-users@googlegroups.com. To unsubscribe from this group, send email to puppet-users+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/puppet-users?hl=en.
