Reviewed-by: iustinp

Reviewed-by: iustinp

- Run “gnt-cluster verify” and “gnt-cluster info” after adding all nodes
- Remove unused --cleanup option
- Remove --verbose option and always print executed SSH commands

Reviewed-by: iustinp

This changes:
  - cluster setup, we no longer edit /etc/ssh/ssh_known_hosts but our
    own file
  - node add, we no longer remove root's known_hosts (twice)
  - gnt-instance console, both the LU and the script: since now the ssh
    setup is not standard, we need to build the ssh cmdline in the LU
    (instead of manually building it in the script) with the correct
    parameters and use the command line as returned in the script
  - ssh.py, many changes, split options in module-level constants so
    that building the command line in different places is easier/more
    logical
  - backend.py, we no longer remove root's known_hosts in Add node, and
    we allow our own known_hosts file to be uploaded

Reviewed-by: imsnah

This function used a hand-coded ssh call to remote nodes. Fix it to use the
ssh.SSHCall function, and in the process drop the command field from the
results, as it's too verbose and we can use (in gnt-cluster) what we passed in.

Reviewed-by: schreiberal

_GetWantedNodes is used wrongly by the LUClusterCopyFile. This fixes that.

Reviewed-by: imsnah

Reviewed-by: iustin

This is more in line with the other document names.

Also, change the title to simply "Ganeti installation tutorial".

Reviewed-by: ultrotter

In case one installs from source, make, tar and gzip are also needed. tar and
gzip are almost always installed, but make not, so let's add a note about that.

Also remove a '>' in the apt-get install example so copy-paste works.

Reviewed-by: imsnah

In case we use StrictHostKeyChecking=ask, also add HashKnownHosts=no so that
debugging is easier. The nodes to which we are connecting are anyway visible in
/etc/ssh/ssh_known_hosts.

Reviewed-by: imsnah

appropriate raise.

Reviewed-by: imsnah

This was forgotten when the init script was changed.

Reviewed-by: imsnah

Since the table generation might be useful elsewhere, let's change it to
return the data instead of directly printing it.

Its callers have also been updated.

Reviewed-by: imsnah

This removes the section on packages from installing.sgml (until we have
packages) and adds/corrects informations about using the startup script.

It also adds notes about the ``--master-netdev`` option, which one needs
to use if the node doesn't have an interface named xen-br0 (or if it's
not the interface wanted for external access).

It fixes the main Makefile.am to create $localstatedir/{lib,log}/ganeti.
It fixes the testing Makefile.am after the rename fake_config.py ->
mocks.py.  It strips the output of "ip link show" to have a nicer output
if the master netdev does not exist.

This changes installing.sgml, adding details about required software and
OS instances. It also updates INSTALL and README to correspond with the
sgml manual.

Reviewed-by: ultrotter

The biggest change is that at configure time one must specify
--localstatedir=/var since the directories for ganeti (/var/log/ganeti,
/var/lib/ganeti) must be located here.

Reviewed-by: ultrotter

This changes the raising of exceptions from:
  raise Exception, value
to
  raise Exception(value)

as the first form will be removed in python-3000 and the second form is
preferred now.

The changes also involve a few cases of changing from raising standard
exceptions and use our own ones.

The new version also fixes many pylint-generated warnings, especially in
ganeti-noded where I changed many methods to @staticmethod.

There is no functionality changed (barring any bugs).

This is only the backend part, from the command line the tags can't be
read/modified yet.

Reviewed-by: imsnah

Reviewed-by: iustinp

  - add an Update method on the ConfigWriter class;
  - make the AddInstance method not log disks for diskless types (helps with testing)
  - implement limited testing for the ConfigWriter with focus on the new Update method

Reviewed-by: iustinp

won't reread it if not modified by someone else.

Reviewed-by: iustinp

configuration.

Reviewed-by: imsnah

instead use an UUID prefix and a suffix denoting the disk iv_name
(sda/sdb) and possibly it's type (data/meta).

Reviewed-by: imsnah

Reviewed-by: iustinp

- Cleanup

Reviewed-by: iustinp

Reviewed-by: iustinp

Add warning about avoiding xm commands for instance creation
Also fix a man page reference in installing.sgml to use the docbook format

Reviewed-By: iustinp

Reviewed-by: iustinp

Reviewed-by: iustinp

Reviewed-by: iustinp

Refer to the glossary from the installing guide

Reviewed-By: iustinp

Reviewed-By: iustinp

Reviewed-By: iustinp, imsnah

Reviewed-by: iustinp

Reviewed-by: iustinp