GitLab

This commit is intended to makes the license status of Emulab and
ProtoGENI source files more clear.  It replaces license symbols like
"EMULAB-COPYRIGHT" and "GENIPUBLIC-COPYRIGHT" with {{{ }}}-delimited
blocks that contain actual license statements.

This change was driven by the fact that today, most people acquire and
track Emulab and ProtoGENI sources via git.

Before the Emulab source code was kept in git, the Flux Research Group
at the University of Utah would roll distributions by making tar
files.  As part of that process, the Flux Group would replace the
license symbols in the source files with actual license statements.

When the Flux Group moved to git, people outside of the group started
to see the source files with the "unexpanded" symbols.  This meant
that people acquired source files without actual license statements in
them.  All the relevant files had Utah *copyright* statements in them,
but without the expanded *license* statements, the licensing status of
the source files was unclear.

This commit is intended to clear up that confusion.

Most Utah-copyrighted files in the Emulab source tree are distributed
under the terms of the Affero GNU General Public License, version 3
(AGPLv3).

Most Utah-copyrighted files related to ProtoGENI are distributed under
the terms of the GENI Public License, which is a BSD-like open-source
license.

Some Utah-copyrighted files in the Emulab source tree are distributed
under the terms of the GNU Lesser General Public License, version 2.1
(LGPL).

Add metadata_url and imagefile_url.

Also allow pcvm for type.

This is in the node type check where we look at what is currently in the
partition they are imaging, and base the set of valid node type on that.
However, if they specify a partition that doesn't currently have an image,
we would previously effectively tell them that the image will not run on
the node type that it is currently running on!

Now we just say "there is no current image in that partition."

entries for all pc types, even if are no nodes with those types in the
testbed. This is very useful for preloading images and the mappings at
the begginning of time, when loading the initial descriptors.

Basically, we cannot create an image descriptor without any types
defined, and we cannot create any types without a default image
descriptor. I broke the circle by adding a stub pc type into the
database fill file so that all Emulabs start with a predefined type.
Then you can load the descriptor file, create your actual types, and
then go back and edit the image descriptors to set the types those
images run on (you always had to do this).

process, to add the base descriptors.

image.

 * when creating an image from a node, make sure the new image
   gets the MBR version used by the existing image
 * when loading a single-partition image that requires a different
   MBR, invalidate all other existing partition ("invalidate" in the
   sense that we remove any partitions table entries, we don't do anything
   to the disk)

I'm sure there was a reason for this at one time, but I don't recall it...

Fix Ticket #211 by reporting all the unacceptable node types at once.

creating a whole disk image with the "Easy" form.

     www/newimageid_ez.php3 - The reworked PHP page.  Calls Image::NewImageId with ez=1.
     www/newimageid.php3 - Call Image::NewImageId with ez=0.
     www/imageid_defs.php - Re-use the Image::NewImageId class method, adding an 'ez' arg.
     backend/{newimageid_ez,GNUmakefile}.in configure configure.in - New backend script.
         After checks, calls OSinfo->Create and Image->Create with the same XML args array.
     db/Image.pm.in - Re-use the Image->Create method, adding an imageid over-ride arg.
     db/OSinfo.pm.in - Filter out extraneous db slot args from XML in the Create method.
     db/libdb.pm.in - Add TB_{OS,IMAGE}ID_* constants from dbdefs.php3 .
     sql/database-fill.sql - Add OS entries to the table_regex 'images' pattern set.

     www/newimageid.php3 - The reworked PHP page.
     www/imageid_defs.php - Add an Image::NewImageId class method
                            bridging to the script via XML.
     backend/{newimageid,GNUmakefile}.in configure configure.in - New backend script.
     db/Image.pm.in - Add a Create class method for script arg checking.
     sql/database-fill.sql - Add to the table_regex 'images' checking patterns.