Amazon Web Services User Group (Australia) Message Board › Update from Steve Gorton re: AWS marketplace

Update from Steve Gorton re: AWS marketplace

Rob L.
user 19397741
Group Organizer
Melbourne, AU
Here is the info as promised by Steve Gorton on the AWS marketplace.

Looking at it below I suspect that this is a security feature to prevent people from reverse engineering application software installed on the root EBS volumes of AWS Marketplace Appliances.

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By Steve Gorton.

 

AWS Marketplace Limitations
The AWS Marketplace has limitations that cripple two of the above features, making highly available and scalable services much more difficult to provide.

Marketplace AMI instances cannot be added to an ELB

Try it. You’ll get this error message:

Error: InvalidInstance: ElasticLoadBalancing does not support the paid AMI or supported AMI of instance i-10abf677.

There is no mention of this limitation in the relevant ELB documentation.

Root EBS volumes of Marketplace AMI instances cannot be mounted on non-root devices

Because all Marketplace AMIs are EBS-backed, you might think that there is a quick path to recover data if the instance dies unexpectedly: simply attach the root EBS volume to another device on another instance and get the data from there. But don’t rely on that – it won’t work. Here is what happens when you try to mount the root EBS volume from an instance of a Marketplace AMI on an another instance:

Failed to attach EBS volume 'New-Mongo-ROOT-VOLUME' (/dev/sdj) to 'New-Mongo' due to: OperationNotPermitted: 'vol-98c642f7' with Marketplace codes may not be attached as a secondary device.

This limitation is described here in AWS documentation:

If a volume has an AWS Marketplace product code:

The volume can only be attached to the root device of a stopped instance.
You must be subscribed to the AWS Marketplace code that is on the volume.
The configuration (instance type, operating system) of the instance must support that specific AWS Marketplace code. For example, you cannot take a volume from a Windows instance and attach it to a Linux instance.
AWS Marketplace product codes will be copied from the volume to the instance.

 

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Steve Gorton
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