General discussion about Chef

[chef] Re: Re: Ohai on a AWS VPC instance


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  • From: Daniel DeLeo < >
  • To:
  • Subject: [chef] Re: Re: Ohai on a AWS VPC instance
  • Date: Tue, 21 Jan 2014 10:21:00 -0800
For further explanation, VPC mode in EC2 breaks ohai’s auto detection of EC2. Ohai’s hint system is a workaround for cases where we can not reliably auto detect some feature of the platform we’re on, so you need to create a hint file as referenced in the previous post to tell ohai to gather EC2 data.

HTH,

-- 
Daniel DeLeo

On Monday, January 20, 2014 at 11:45 AM, Eric Herot wrote:

Hi Edward,

Afaik that attribute is created if there is an ohai hint called 'ec2.json'.  The knife-ec2 plugin automatically sets this hint during bootstrap (if you use that bootstrap method).  Is it possible that the VPC nodes were bootstrapped in a way that would have skipped this step?

The relevant codey bits...
Where knife-ec2 sets the hint:
Where the bootstrap process drops it on the node:

Hope this helps…

Eric

On Jan 20, 2014, at 2:39 PM, Edward < "> > wrote:


Ohai Chefs!

I'm seeing an issue with running a AWS instance in a VPC that has an Elastic IP
associated to it, the issue that I see is that I'm expecting node[cloud] and
node[cloud][public_ipv4] and its not there on the VPC instance.

Here is what I'm running on the VPC node:
ii chef 11.8.2-1.ubuntu.12.04
amd64 The full stack of chef
:"> :~# lsb_release -a
No LSB modules are available.
Distributor ID: Ubuntu
Description: Ubuntu 12.10
Release: 12.10
Codename: quantal

Quick output from a host in a VPC w/EIP and a non-VPC host w/EIP:

VPC host:
ohai | grep cloud
"label": "cloudimg-rootfs"
"/dev/disk/by-label/cloudimg-rootfs": {

Non-VPC:
ohai | grep cloud
"cloud": {
"label": "cloudimg-rootfs"
"/dev/disk/by-label/cloudimg-rootfs": {

As you can see the non-VPC host has node[cloud] and the non-vpc host does not.
Here is a full output of ohai on the VPC host

https://gist.github.com/edwardvfluke/8527113

Any Ideas on why this is happening?

Thanks,
ev-


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