Re: Instance-store Amazon AMI

[Cédric Jeanneret <debian@tengu.ch>]

Hello again,

Bad news : cloudformation does NOT allow us to set ephemeral storage. 
Urk. If we want to use the provided Debian EBS-based AMI, we have to use 
the AWS Console exclusively :(. Even the ec2-start-instance doesn't 
allow the ephemeral storage stuff.

That's bad. Really bad :(.

Are you sure you don't want to provide store-instance based AMI? This 
would be great for people using cloudformation for large scale 
deployment on Debian systems (as we're currently doing, using our old 
squeeze instance-based AMI).

Cheers,

C.



On 2013-01-31 10:21, Cédric Jeanneret wrote:
> Hello Anders,
>
> Oh, I see. Yes, right we can add them through the AWS Console. Fact
> is, we do not want to create our own AMI anymore, so I don't think
> I'll patch the code and recreate the AMI ;).
> I just have to find out whether this can be done in our
> cloudformation (CFN) templates - pretty sure Amazon thought about it.
>
> It may be just good to add some warning regarding the lack of default
> ephemeral storage on either the wiki page (btw, registered AMI on 
> this
> page are wrong :/ ) or amazon marketplace. If I have some nice CFN
> stuff, I will post it in here - just have to see with my work team if
> this solution is suitable for us.
>
> Thanks a lot for your work and your answer.
>
> Cheers,
>
> C.
>
> On 2013-01-31 10:10, Anders Ingemann wrote:
> > Actually, I used to do that by default
> >
> > (https://github.com/andsens/ec2debian-build-ami/commit/0119aa17b8ffaf76002426e277a7a309278ffc94
> > [2]) but removed that feature because you now can mount them 
> > manually
> > in AWS when starting an instance. The problem is that you will have
> > some invalid default mappings when starting instances. In order for
> > this to work with all instance types, I have to map every 
> > conceivable
> > instance store, which isn't very pretty. You can simply re-add the
> > code in the above link to map all instance stores (keep in mind we 
> > use
> > euca2ools instead of ec2-tools now) or possibly write a plugin for
> > this...?
> >
> > Anders
> >
> > On 31 January 2013 09:50, Cédric Jeanneret <debian@tengu.ch> wrote:
> >
> > > Hello!
> > >
> > > The Debian provided AMI are only EBS based, which is a bit crappy: 
> > > no ephemeral storage are attached by default. For example, creating 
> > > an m1.small instance based on the provided AMI should get a 150G 
> > > ephemeral storage under /dev/xvdb - but there's nothing at all :(.
> > >
> > > Would it be possible to provide "Instance store" AMI, as those one 
> > > will have the default ephemeral storage?
> > >
> > > Thanks a lot for you answers.
> > >
> > > Cheers,
> > >
> > > C.
> > >
> > > --
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> > > [1]
> >
> >
> >
> > Links:
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> > [1] 
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> > [2]
> >
> > https://github.com/andsens/ec2debian-build-ami/commit/0119aa17b8ffaf76002426e277a7a309278ffc94