This package delivers keyrings that contain the public keys that have
been used to sign data on http://cloud-images.ubuntu.com.

These keyrings should not be added to apt, as they are not intended to
ever sign apt data.

The Makefile basically creates keyrings from directories of public keys.
  pubkeys/<dirname>/*.gpg
     will be added to keyrings/<dirname>/*.gpg
  pubkeys-removed/<dirname>/*.gpg 
     will be added to keyrings-removed/<dirname>-removed.gpg

The file 'NONE.gpg' is completely ignored, it is just used to facilitate the
Makefile in creating an empty keyring.

.gpg files in pubkeys/<dirname>/ are simply exported (armored) gpg public
keys.  So you can easily import those into your private keyring with:
  gpg --import file.gpg

To create a public key:
  gpg --armor --export KEYEMAIL > somekey.gpg

To add a new keyring:
  add a directory to pubkeys/ and put a public key in it with extension .gpg

To add a key to an existing keyring:
  add a file in pubkeys/<keyring>/ with extension .gpg

To move a keyring to 'removed':
  move pubkeys/<dirname>/file.gpg to keyrings-removed/<dirname>/file.gpg
