[ubuntu-cloud] [UDS] Ubuntu Cloud Images Round-table Pre-discussion

Yaron yaronf at porticor.com
Thu May 3 20:04:44 UTC 2012

Regarding the recovery shell idea: some of us are developing 
security-sensitive appliances on top of these AMIs. Please make sure that 
any potential "backdoors" into the image have a well-defined, well 
documented way to disable them while customizing the image.


On Wednesday, May 2, 2012 8:43:11 PM UTC+3, Ben Howard wrote:
> At UDS, we will holding a Ubuntu Cloud Image Round-table to discuss the 
> state of the Cloud Images. In the interest of making this a productive 
> session, I wanted to start an email discussion before UDS. 
> (https://blueprints.launchpad.net/ubuntu/+spec/servercloud-q-cloud-images) 
> * Addition of an SSH recovery Shell: Depending on the virtualization 
> solution (i.e. EC2 EBS versus EC2 Instance-store versus OpenStack), the 
> ability to recover from file system corruption is limited or 
> non-existent. In order to support users across different virtualization 
> solutions, it is proposed to introduce a SSH recovery method to assist 
> users in recovering from file-system corruption or missing disks. 
>   Proposal: 
>     1. On failure of mount-all or on cloud-init failure to 
>         mount all disks,a special SSH-session would be launched 
>     2. Users would be forced into a screen session with an error 
>         message. 
>     3. Users would need to reboot. 
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