Pipe name servers to resolvconf rather than write them to resolv.conf

since 2.x, oslo.config have removed compatibility of the old name
oslo.config

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This patch escapes the password formatted into a hand-crafted
XML for the WinRM certificate mapping. Without it, using passwords
such as 'P@ssw&d' will make the WinRM certificate auth plugin to
fail with a "The WS-Management service cannot process the request
because the XML is invalid.", which is actually true, since the resulting
XML is not valid, due to the unescaped and sign.

Change-Id: Ia93ab13a4ae5783c1fed5fbb748902bda84e9b65
Closes-Bug: #1441884

ConfigWinRMCertificateAuthPlugin plugin depends on SetUserPasswordPlugin
and CreateUserPlugin in order to retrieve the credentials which will
be used for setting up the WinRM authentication. This is not desirable,
since ConfigWinRMCertificateAuthPlugin can't run independently
of the other two. This patch obtains the username from the config file,
if it is not found in the shared data dictionary and it retrieves
the password using get_admin_password from the metadata service, if it
is not found in the shared data dictionary.

Change-Id: I587782ff9cb8989bf01f6d86dbdbd1fa6ec53d1b
Closes-Bug: #1433174

Retrieve adapters by skipping multicast and IPv6 unicast addresses.

Change-Id: I09d6e3593111c200a15f5713d6f4f676a3bcbb6a

Change-Id: Ia82186b5ed969da20a0e86e9e64fc22f523cf549

This patch updates the name of the plugins where they changed
and documents the features of the supported cloud-config format,
including write_files and set_timezone directives.

Change-Id: I2b794bb7ec41d45d2750cd5181034fd6f9bcd582

It seems the change id 30c56082bb9b9bcd80128eedcef17b6beb793cf8
wasn't released in pbr, so this patch adds the tzlocal module
requirement, temporarily, to requirements.txt, until a due release
of pbr will be done. There's no need to add the rest of the libraries,
because they are already provided by the installer.

Change-Id: I03c66bd13ad04e9be2164d8e450cd7c625c731dd

This patch logs whatever mlabel returns. This can help us to debug
situations where the output is actually different that what it is
expected, which can lead to a is_vfat_drive to fail on a real
VFAT Config Drive.

Change-Id: I9fe6c19995b30335aeea2471164434b10626b004

It's helpful to see what mlabel gave when it failed to get the label
for a drive.

Change-Id: I531c1a75debaa88aff3185fdaa03417559eec7cc

This patch adds some missing tests for a couple of edge cases.

Change-Id: I3929595fddca0628269af6235bbb0fca853ae3eb

Sometimes, the acquired pair of host and port is stuck
into TIME_WAIT status and for reassigning a socket on it,
the resources must be freed, which is not immediately possible
even after closing the socket. So a reuse address options set
on it solves the problem.

Change-Id: I1801433b93a4fcd48cd65d047719127f12f1e4e3

cloud-config supports a new plugin, called 'set-timezone', which
can be used to change the timezone on the underlying instance.
The patch adds a new method in the osutils abstraction, called `set_timezone`,
which should be implemented  by each separated OS. The abstraction calls
into cloudbaseinit.utils.windows.timezone, another layer of abstraction
over two API methods, SetTimeZoneInformation for Windows 2003 and older
and SetDynamicTimeZoneInformation, for newer versions of Windows,
which also handles Daylight Saving Time.
The plugin supports standard IANA timezone names, which are then translated
to the Windows-specific timezone names, using tzlocal library.

Change-Id: I18674e1ae078fc69f3fb938065ba01a4de5464a1

Due to mock.Mock's nature, using an undefined method will not result
in an AttributeError, since the object will be created silently. This
changed in Python 3.5, where accessing a member which doesn't exist
will raise an AttributeError explicitly. This uncovered a couple of bugs
in the test suite.

Change-Id: Idbfa92d82b01ff4710dfdd4556500b5c61d20db6

* `_network_details` -> `refined_network_details`

Change-Id: I7338324896987c572e26998e12d45801a6822e1b

When matching metadata network interface details with
the actual existing instance network adapters, keep
a valid alignment between their names by using their indexes.
This will be used if and only if the hardware address
is missing and the trivial name matching will fail.

Change-Id: I32b1efece3eb0a43432315ac6516561ef6ccbe37

There were some files which weren't moved in the proper location
when the dichotomy between common and Windows-specific plugins was
established. This patch moves the test_write_files in the proper
location and updates the paths from the code.

Change-Id: I7aa314b849eda192eedbd4988b83342bf2c1c5c0

This patch adds a type of exception for the Windows code, which interpolates
the given exception message with the last Windows API error, retrieved with
ctypes.GetLastError. This is useful in the case where we have only the log
at our disposal for debugging and some API method failed with reasons unknown.
Since we can't replicate what the user does everytime, having some additional
clue why an API failed could improve our bug detection workflow.

Change-Id: I364324ad5a8529b5363be3a7c6dc03ca52eb637c