environs/ec2: compress cloudinit data

environs/ec2: compress cloudinit data

Also add trivial.Gzip and Gunzip to make it
easy for other providers to do the same thing.

https://code.launchpad.net/~rogpeppe/juju-core/193-compress-cloudinit/+merge/143506

(do not edit description out of merge proposal)

[niemeyer, 2013-01-16 13:54:33]

https://codereview.appspot.com/7138044/diff/1/cloudinit/cloudinit.go
File cloudinit/cloudinit.go (right):

https://codereview.appspot.com/7138044/diff/1/cloudinit/cloudinit.go#newcode32
cloudinit/cloudinit.go:32: // Render returns the cloud-init configuration as
gzip-compressed YAML file.
s/as/as a/

https://codereview.appspot.com/7138044/diff/1/cloudinit/cloudinit.go#newcode37
cloudinit/cloudinit.go:37: }
This method is just Render + compress, and the only client of this method is
calling both Render and RenderCompressed. Feels like we don't need any changes
in here, and can instead just have a trivial.Gzip method to compress []byte, and
call that on ec2.

[rog, 2013-01-16 14:31:50]

Please take a look.

[niemeyer, 2013-01-16 14:44:00]

LGTM

Please just fix the CL description during submit.

[rog, 2013-01-16 14:47:39]

*** Submitted:

environs/ec2: compress cloudinit data

Also add trivial.Gzip and Gunzip to make it
easy for other providers to do the same thing.

R=niemeyer
CC=
https://codereview.appspot.com/7138044