I can't figure out any reason that we'd need to use long explicitly here
as python implicitly moves from a C long int to python Long
automatically under the covers. My best guess is that it was originally
used so that the facts module would work on python-2.2 where the user
had to convert a number from int to long manually but python-2.4 is our
current baseline.
long isn't present on Python3 so now is a good time to remove this
cruft. (We had a workaround for Python3; this commit also removes the
workaround.)
for `VariableManager._get_magic_variables()`.
This saves a lot of time re-iterating the nearly always constant global
list of groups and their members.
Generate once and cache, and invalidate cache in case `add_host:` or
`group_by:` are used.
* Port set_*_if_different functions to python3
* Add surrogate_or_strict and surrogate_or_replace error handlers for
to_text, to_bytes, to_native
* Set default error handler to surrogate_or_replace
* Make use of the new error handlers in the already ported code
* Move the unittests for module_utils._text as they aren't in basic.py
* Cleanup around SEQUENCETYPE. On python2.6+ SEQUENCETYPE includes
strings so make sure code omits those explicitly if necessary
* Allow arg_spec aliases to be other sequence types
This feature also cleans up and extends the meta subsystem:
* Allows for some meta actions (noop, clear_facts, clear_host_errors,
and end_play) to operate on a per-host basis, meaning they can work
with the free strategy as expected.
* Allows for conditionals on meta tasks.
* Fixes a bug where (for the linear strategy) metas were not treated
as a run_once task, meaning every host in inventory would run the
meta task.
Fixes#1476
* adds squashing to objects, which allows them to be squashed down
to a final "view" before post_validate to avoid expensive evaluations
of parent attributes
Introduces the `inherit` param for FieldAttributes, which is now used
in BaseMeta when constructing the getter property to enhance performance
by reducing the amount of work the getter generally has to do.
* Use six instead of urllib2, for python 3 compat
* Open the certificate file using binary mode
On python3, os.write requires 'bytes'. Also avoid
using a too broad exception, since the issue was hard
to spot due to it.
* Do not add the header User-agent if not set
Python3 module do raise a exception if a header is
not a string-like object, and the default value is None.
The authorize method was calling run_commands() instead of execute(). This
fixes that problem so that authorize() calls are made direclty on the shell
object now
* fix setting cookie after successful login
* raise NotImplementedError if run_commands is called in Rest
* return header msg key if status is not 2xx
* add action plugin ops_config
* New features for include_vars
include_vars.py now allows you to include an entire directory and its nested directories of variable files.
Added Features..
* Ignore by default *.md, *.py, and *.pyc
* Ignore any list of files.
* Only include files nested by depth (default=unlimited)
* Match only files matching (valid regex)
* Sort files alphabetically and load in that order.
* Sort directories alphabetically and load in that order.
```
- include_vars: 'vars/all.yml'
- name: include all.yml
include_vars:
file: 'vars/all.yml'
- name: include all yml files in vars/all and all nested directories
include_vars:
dir: 'vars/all'
- name: include all yml files in vars/all and all nested directories and save the output in test.
include_vars:
dir: 'vars/all'
name: test
- name: include all yml files in vars/services
include_vars:
dir: 'vars/services'
depth: 1
- name: include only bastion.yml files
include_vars:
dir: 'vars'
files_matching: 'bastion.yml'
- name: include only all yml files exception bastion.yml
include_vars:
dir: 'vars'
ignore_files: 'bastion.yml'
```
* Added whitelist for file extensisions (yaml, yml, json)
* Removed unit tests in favor of integration tests
Working on the test suite, I tried to replace a call to sudo to a
call to su, and found out that I can't change user to 'nobody'
without changing the option become_flags in ansible.cfg
As this would be dependent on the user and the task, it make more sense
to push the setting there.
* Fix to_native call in selinux_context and selinux_default_context to
use the error handler correctly.
* Port set_mode_if_different to work on python3
* Port atomic_move to work on python3
* Fix check_password_prompt variable which wasn't renamed properly
* univention: add common code for univention corporate server modules
* univention: try import only univention specific libraries
* Code Review with @2-B, slight API changes and refactoring.
* Added module documentation overview, describing the provided functions
* Moved module-global objects into getter functions, so that we don't
need to import possibly-unavailable univention modules at the module level.
* Renamed some exports for improved consistency:
- module_name() -> module_by_name()
- orig_ldap -> ldap_module()
- ldap -> uldap()
Note that this introduces slight API changes from the outside. Instead of
directly accessing module properties, you now have module functions with the
same name. Examples:
- ansible.module_utils.univention.position_base_dn()
- ansible.module_utils.univention.config_registry()
- ansible.module_utils.univention.base_dn()
- ansible.module_utils.univention.config()
* module_utils univention: fix library
* move module_utils from univention to univention_umc, because python import univention fails if library is called univention
* univention_umc: fix intention
* univention: change common code to BSD-2-clause
* attempt #11 to role_include
* fixes from jimi-c
* do not override load_data, move all to load
* removed debugging
* implemented tasks_from parameter, must break cache
* fixed issue with cache and tasks_from
* make resolution of from_tasks prioritize literal
* avoid role dependency dedupe when include_role
* fixed role deps and handlers are now loaded
* simplified code, enabled k=v parsing
used example from jimi-c
* load role defaults for task when include_role
* fixed issue with from_Tasks overriding all subdirs
* corrected priority order of main candidates
* made tasks_from a more generic interface to roles
* fix block inheritance and handler order
* allow vars: clause into included role
* pull vars already processed vs from raw data
* fix from jimi-c blocks i broke
* added back append for dynamic includes
* only allow for basename in from parameter
* fix for docs when no default
* fixed notes
* added include_role to changelog
* Add OpenBSD virtualization facts.
Patch written by @jasperla.
Tested by various people on:
- virtualbox
- vmware esx(i) + fusion
- kvm (smartos + plain linux + a random cloud provider)
This patch is already present in the OpenBSD port of ansible.
* Rework diff to get rid of extra returns.
Requested by @bcoca.
While here, use four-space indentations of all code blocks.
* Set facts even if no match is found.
Discussed with @bcoca.
* Find sysctl via get_bin_path().
Requested by @bcoca.
* Fail if we do not find a sysctl binary.
* Do not fail if a sysctl binary is not found.
Just set empty fact values instead.
Requested by @bcoca.
There was general consensus that displaying every plugin load on -vvv
was *way* too noisy. This commit reformats the log message to be less
verbose, and drops it down to debugging-only level.
tempfile.NamedTemporaryFile keeps a file handle causing os.rename() to fail with windows based vboxfs: [Errno 26] Text file busy.
Changed NamedTemporaryFile to mkstemp() and added a finally block to unlink the temp file in each and every case.
AnsibleError is not imported in that file, and since that's
a parsing time issue, better raise AnsibleParserError like the
rest of the file.
Issue signaled on irc by gordon`
* run_command needed a bit of tweaking to its string handling of
arguments.
* The run_command change fixes the last bit of lineinfile so we can
enable its tests
This adds a new property to the Command object that is used to hold
modified command strings that could be different from the command used
to create the object. This allows for seamless switch between text and
json enabled commands.
To override a generic class that is subclassed based on platform, the
subclass must define platform and distribution.
The load_platform_subclass() calls the get_platform() and
get_distribution() methods to detect the platform and the distribution.
On Alpine Linux, get_distribution() method returns None and it is not
possible to have different implementations based on detected platform.
groups['x']|map('extract', hostvars, 'somevar') would break if any host
didn't have 'somevar' set. With this change, it will return Undefined
instead. This change permits |map('extract', …)|map('default', 42) to
set a default value in such cases.
This adds a cli transport, netcfg, and netcli implementations for working
with devices running Nokia SROS. There is also an update to netcfg
to support the sros config file format.
- Fix octal formatting of file mode in module response on py3.
- Convert file path to unicode in copy action.
- Enable file and copy module tests for py3 now that they pass.
Make some python3 fixes to make the unittests pass:
* galaxy imports
* dictionary iteration in role requirements
* swap_stdout helper for unittests
* Normalize to text string in a facts.py function
Fixes for these are either rewriting to get rid of the need for the
functions or using six.moves to get equivalent functions for both
python2 and python3
This completes the refactor of the iosxr 2.2 shared module. It also
includes the iosxr_config action plugin to be implemented by the
iosxr_config module for 2.2
ran task_executor through python-modernize and then made changes to the
code pointed out by it:
* Most places where we looped through dict.keys() changed to
for key in dict:
Using keys() in python2 creates a list() of keys. For iterating, we
can iterate over the dict itself and we'll be handed back each key.
In python3, doing it this way does not create a new list and thus is
more memory efficient.
* In one place, use:
for key in list(dict.keys()):
because we're deleting elements from the dictionary inside of the
loop. So we really do need to iterate over a separate list of the
keys to avoid modifying the dictionary that we're iterating over.
(Fixes Python3 bug)
* In one place, change the order of an if-elif-else tree so that the
most frequent cases are evaluated first. (Optimization)
Make !vault-encrypted create a AnsibleVaultUnicode
yaml object that can be used as a regular string object.
This allows a playbook to include a encrypted vault
blob for the value of a yaml variable. A 'secret_password'
variable can have it's value encrypted instead of having
to vault encrypt an entire vars file.
Add __ENCRYPTED__ to the vault yaml types so
template.Template can treat it similar
to __UNSAFE__ flags.
vault.VaultLib api changes:
- Split VaultLib.encrypt to encrypt and encrypt_bytestring
- VaultLib.encrypt() previously accepted the plaintext data
as either a byte string or a unicode string.
Doing the right thing based on the input type would fail
on py3 if given a arg of type 'bytes'. To simplify the
API, vaultlib.encrypt() now assumes input plaintext is a
py2 unicode or py3 str. It will encode to utf-8 then call
the new encrypt_bytestring(). The new methods are less
ambiguous.
- moved VaultLib.is_encrypted logic to vault module scope
and split to is_encrypted() and is_encrypted_file().
Add a test/unit/mock/yaml_helper.py
It has some helpers for testing parsing/yaml
Integration tests added as roles test_vault and test_vault_embedded
The 'import xmltodict' was causing import
errors when generating documentation. Since
xmltodict is a required but not stdlib module,
throw AnsibleError if unable to import.
Remove unused combine_vars.
Replace a use of 'stdin_iterator == None' with
idiomatic 'stdin_iterat is None'
Misc pep8 cleanups.
Make the plugin loading info displayed by callback plugins
match.
In debug mode (ANSIBLE_DEBUG=1 env), log all requests for
plugins including already cached plugins and class_only
requests.
Traceback (most recent call last):
File "/tmp/ansible_tpehdgt7/ansible_module_setup.py", line 134, in <module>
main()
File "/tmp/ansible_tpehdgt7/ansible_module_setup.py", line 124, in main
supports_check_mode = True,
File "/tmp/ansible_tpehdgt7/ansible_modlib.zip/ansible/module_utils/basic.py", line 696, in __init__
File "/tmp/ansible_tpehdgt7/ansible_modlib.zip/ansible/module_utils/basic.py", line 1670, in _log_invocation
File "/tmp/ansible_tpehdgt7/ansible_modlib.zip/ansible/module_utils/basic.py", line 469, in heuristic_log_sanitize
TypeError: 'str' does not support the buffer interface
This is enough to get minimal copy module working on python3
We have t omodify dataloader's path_dwim_relative_stack and everything
that calls it to use text paths instead of byte string paths
* Give native strings to selinux library functions.
SELinux takes pathnames as native strings. That means we need to
convert to bytes on python2 and convert to text on python3.
Fixes#17155
* Read kitchen documentation, make module_utils params more like kitchen API
* Remove none nonstring strategy and add strict
* Raise TypeError on invalid nonstring strategy
* Document to_native()
* Make unittests for testing module_utils.text
* Rm py2.7+ code in docker connection plugin
The docker connection plugin was using subprocess.check_output
which only exists in python 2.7 and later. Connection plugins
need to support python2.6 so this replaces it with Popen/communicate()
* Handle docker ver errors in docker connection
Add unit tests for DockerConnection
Fixes#16971
This commit updates the nxos transport shared plugins for
2.2. This includes updates to both Cli and Nxapi. This commit
also includes the nxos_config action plugin
* Cleanup basic.py code now that six is available
We had some hacks in basic.py to allow us python2 and python3
compatibility. Those can now be offloaded to the six library that we're
bundling.
* Cleanup basic.py code now that six is available
We had some hacks in basic.py to allow us python2 and python3
compatibility. Those can now be offloaded to the six library that we're
bundling.
This is part of the 2.2 refactor to extract the Cli class into a
separate module. This renames netcmd to netcli which is consistent
with the network shared modules implementations
This removes top level functions from the ios module and moves them
into the specific modules. This update also includes some clean up
of the Cli transport
This restructure moves the Cli object to netcmd and includes a roll up
of inor bugfix updates to CommandRunner
* CommandRunner now only allows one instance of a command in the stack and
raise an exception if a duplidate command is detected
* CommandRunner now caches returns based on command and output
* CommandRunner is not responsible for creating Command instances
test/units/plugins/action/test_action.py had code
for handling a bug in python 3.4's mock_open that
causes errors when reading binary data.
Moved to compat/tests/mock.py so other tests can
use it by default.
This update will now remove any keys from results that are created using
the private names. Private names are identified as double underscore (__)
on either side of the key name
* actions/unarchive: fix unarchive from remote url
Currently unarchive from remote url does not work because the core
unarchive module was updated to support 'remote_src' [1], but the
unarchive action plugin was not updated for this. This causes failures
because the action plugin assumes it needs to copy a file to the
remote server, but in the case of downloading a file from a remote
url a local file does not exist, so an error occurs when the file is
not found.
[1] https://github.com/ansible/ansible-modules-core/commit/467516e
* test_unarchive: fix test with wrong remote_src use
The non-ascii filenames test had improperly set remote_src=yes even
though it was actually copying the file from the local machine (i.e.
the file did not already exist remotely). This test was passing
until the remote_src behavior of unarchive was fixed in 276550f.
The calculation for max_fail_percentage was moved into the linear
strategy a while back, and works better there in the stategy layer
rather than at the PBE layer. This patch removes it from the PBE layer
and tweaks the logic controlling whether or not the next batch is run.
Fixes#15954
Fixes#10779
Refactor some of the block device, mount point, and
mtab/fstab facts collection for linux for better
performance on systems with lots of block devices.
Instead of invoking 'lsblk' for every entry in mtab,
invoke it once, then map the results to mtab entries.
Change the args used for invoking 'findmnt' since the
previous combination of args conflicts, so this would
always fail on some systems depending on version.
Add test cases for facts Hardware()/Network()/Virtual() classes
__new__ method and verify they create the proper subclass based
on the platform.system() results.
Split out all the 'invoke some command and grab it's output'
bits related to linux mount paths into their own methods so
it is easier to mock them in unit tests.
Fix the DragonFly* classes that did not defined a 'platform'
class attribute. This caused FreeBSD systems to potentially
get the DragonFly* subclasses incorrectly. In practice it
didnt matter much since the DragonFly* subclasses duplicated
the FreeBSD ones. Actual DragonFly systems would end up with
the generic Hardware() etc instead of the DragonFly* classes.
Fix Hardware.__new__() on PY3, passing args to __new__
would cause "object() takes no parameters" errors. So
check for PY3 and just call __new__ without the args
See
https://hg.python.org/cpython/file/44ed0cd3dc6d/Objects/typeobject.c#l2818
for some explaination.
The flag new_pb_basedir is not being utilized in Inventory._get_hostgroup_vars,
leading to the situation where an inventory with no playbook basedir set will
read host/group vars from the $CWD, regardless of the inventory and/or playbook
relative location. This patch corrects that by not using the playbook basedir
if it is unset (None).
This patch also corrects a bug in which the VariableManager would accumulate
host/group vars files, which could lead to incorrect vars files being used when
playbooks are run from different directories containing their own group/host vars
directories.
Fixes#16953
Copying the TaskInclude task (which is the parent) before loading the blocks
makes the code much more simple and clean, and fixes a bug introduced during
the performance improvement changes (and specifically the change which moved
things to a single-parent model).
Fixes#17064
Since we introduced static includes in 2.1, this broke the functionality
where a notify could be sent to a named include statement, triggering all
handlers contained within the include. This patch fixes that by adding a
search through the parents of a handler for any TaskIncludes which match.
Fixes#15915
We want to NOT consider the async task as failed if the result is
not parsed, which was the intent of:
https://github.com/ansible/ansible/pull/16458
However, the logic doesn't actually do that because we default
the 'parsed' value to True. It should default to False so that
we continue waiting, as intended.
Instead of immediately returning a failed code (indicating a break in
the play execution), we internally 'or' that failure code with the result
(now an integer flag instead of a boolean) so that we can properly handle
the rescue/always portions of blocks and still remember that the break
condition was hit.
Fixes#16937
* Introduce new 'filetree' lookup plugin
The new "filetree" lookup plugin makes it possible to recurse over a tree of files within the task loop. This makes it possible to e.g. template a complete tree of files to a target system with little effort while retaining permissions and ownership.
The module supports directories, files and symlinks.
The item dictionary consists of:
- src
- root
- path
- mode
- state
- owner
- group
- seuser
- serole
- setype
- selevel
- uid
- gid
- size
- mtime
- ctime
EXAMPLES:
Here is an example of how we use with_filetree within a role:
```yaml
- name: Create directories
file:
path: /web/{{ item.path }}
state: directory
mode: '{{ item.mode }}'
owner: '{{ item.owner }}'
group: '{{ item.group }}'
force: yes
with_filetree: web/
when: item.state == 'directory'
- name: Template complete tree
file:
src: '{{ item.src }}'
dest: /web/{{ item.path }}
state: 'link'
mode: '{{ item.mode }}'
owner: '{{ item.owner }}'
group: '{{ item.group }}'
with_filetree: web/
when: item.state == 'link'
- name: Template complete tree
template:
src: '{{ item.src }}'
dest: /web/{{ item.path }}
mode: '{{ item.mode }}'
owner: '{{ item.owner }}'
group: '{{ item.group }}'
force: yes
with_filetree: web/
when: item.state == 'file'
```
SPECIAL USE:
The following properties also have its special use:
- root: Makes it possible to filter by original location
- path: Is the relative path to root
- uid, gid: Makes it possible to force-create by exact id, rather than by name
- size, mtime, ctime: Makes it possible to filter out files by size, mtime or ctime
TODO:
- Add snippets to documentation
* Small fixes for Python 3
* Return the portion of the file’s mode that can be set by os.chmod()
And remove the exists=True, which is redundant.
* Use lstat() instead of stat() since we support symlinks
* Avoid a few possible stat() calls
* Bring in line with v1.9 and hybrid plugin
* Remove glob module since we no longer use it
* Included suggestions from @RussellLuo
- Two blank lines will be better. See PEP 8
- I think if props is not None is more conventional 😄
* Support failed pwd/grp lookups
* Implement first-found functionality in the path-order
* when including statically, make sure that all parents were also included
statically (issue #16990)
* properly resolve nested static include paths
* print a message when a file is statically included
Fixes#16990
When unittesting this we found that the platform selecting class
hierarchies weren't working in all cases. If the subclass was directly
created (ie: LinuxHardware()), then it would use its inherited __new__()
to try to create itself. The inherited __new__ would look for
subclasses and end up calling its own __new__() again. This would
recurse endlessly. The new code detects when we want to find a subclass
to create (when the base class is used, ie: Hardware()) vs when to
create the class itself (when the subclass is used, ie:
LinuxHardware()).
Rather than repeatedly searching for tasks by uuid via iterating over
all known blocks, cache the tasks when they are added to the PlayIterator
so the lookup becomes a simple key check in a dict.
It is possible that a block is copied prior to validation, in which case
some fields (like when) which should be something other than a string might
not be. Using validate() in copy() is relatively harmless and ensures the
blocks are in the proper structure.
This also cleans up some of the finalized logic from an earlier commit and
adds similar logic for validated.
Fixes#17018
After post_validate() is called on an object, there should be no
need to continue looking up at parent attributes. This patch adds a
new flag (_finalized) which is set to True at the end of post_validate,
and getattr will not look beyond its own attributes from that point on.
* Allow to make the jsonfile cache files pretty (indented and sorted)
Since the json cache files are condensed, it is not very practical to look for something in them. Having indented/sorted cache files makes debugging and playbook/inventory development a lot easier to do.
I made it configurable in case people would object to the performance hit this would have, but to be honest, then they probably should be looking at other cache plugins instead IMO.
* Removed the config option and documentation changes
* Query lookup plugin
* Add license and docstrings
* Add python3-ish imports
* Change query plugin type from lookup to filter
* Switch from dq to jsonpath_rw
* Add integration test for query filter
* Rename query filter to json_query
* Add jsonpath-rw
* Rename query filter to json_query
* Switch query implementation from jsonpath-rw to jmespath
Run setfacl/chown/chmod on each temp dir and file.
This fixes temp file permissions handling on platforms such as FreeBSD
which always return success when using find -exec. This is done by
eliminating the use of find when setting up temp files and directories.
Additionally, tests that now pass on FreeBSD have been enabled for CI.
Due to the way we load plugins, internally to Python there can be issues when
the debug strategy is loaded after the linear strategy. To work around this,
we're changing the import line for the linear strategy to avoid the problem.
Related to #16825
uri:
follow_redirects: no
Will lead yaml to set follow_redirects=False. This is problematic when
the module parameter is not a boolean value but a string. For instance:
follow_redirects = dict(required=False, default='safe', choices=['all', 'safe', 'none', 'yes', 'no']),
Our parameter validation code ends up getting follow_redirects="False"
instead of "no". The 100% fix is for the user to quote their strings in
playbooks like:
uri:
follow_redirects: "no"
But we can fix quite a few common cases by trying to switch "False" back
into the string that it was specified as. We only do this if there is
only one correct choices value that could have been specified. In the
follow_redirects example, a value of "True" only maps back to "yes" and
a value of "False" only maps back to "no" so we can do this. If choices
also contained "on" and "off" then we couldn't map back safely and would
need to force the module author to change the module to handle this
case.
Fixes parts of the following PRs:
* https://github.com/ansible/ansible-modules-core/pull/4220
* https://github.com/ansible/ansible-modules-extras/pull/2593
* These can still race when multiple ansible processes are created at
the same time.
* Reverse order of expanduser and expandvars in unfrakpath(). So that
tildes in environment variables will be handled.
When a task result has an empty results list, the
list should be ignored when determining the results
of `_check_key`. Here the empty list is treated the
same as a non-existent list.
This fixes a bug that manifests itself with squashed
items - namely the task result contains the correct
value for the key, but an empty results list. The
empty results list was treated as zero failures
when deciding which handler to call - so the task
show as a success in the output, but is deemed to
have failed when deciding whether to continue.
This also demonstrates a mismatch between task
result processing and play iteration.
A test is also added for this case, but it would not
have caught the bug - because the bug is really in
the display, and not the success/failure of the
task (visually the test is more accurate).
Fixesansible/ansible-modules-core#4214
This feature changes the scalar value of `serial:` to a list, which
allows users to specify a list of values, so batches can be ramped
up (commonly called "canary" setups):
- hosts: all
serial: [1, 5, 10, "100%"]
tasks:
...
* Revert "There can be only one localhost"
This reverts commit 5f1bbb4fcd.
this broke several usages of localhost, see #16882, #16898 and #16886
* ensure there is only 1 localhost
fixes#16886, #16882 and #16898
- make sure localhost exists before returning it
- optimzed host caching
- ensure we always return a host object
The module level function defs for gcdns_connect() and
gce_connect() provide a default arg for 'provider' that
references into the libcloud module. If the libcloud
modules were not installed, the gce/gcdns python modules
would throw ImportError.
Let the provider arg default to None and if not provided,
set it to the default libcloud.compute.types.Provider.*
value if the modules are installed.
The lack of a comma caused the statement to always evaluate as a
`TypeError` when python interpreted `value (list, tuple, dict)` to call
value with the arguments list, tuple, and dict.
This is a refactoring of the existing GCE utility module to support other projects on Google Cloud Platform.
The previous gce.py module was hard-coded specifically for GCE, and attempting to use it with other projects in GCP failed.
See https://github.com/ansible/ansible/pull/15918#issuecomment-220165913 for more detail.
This has also been an issue for others in the past, although they've handled it by simply
duplicating some of the logic of gce.py in their own modules.
- The existing gce.py module was renamed to gcp.py, and modified to remove any
imports or other code that refers to libcloud.compute or GCE (the GCE_* params were
retained for compatibility). I also renamed the gce_connect function to gcp_connect,
and modified the function signature to make supplying a provider, driver, and agent
information mandatory.
- A new gce.py module was created to handle connectivity to GCE. It imports the
appropriate libcloud.compute providers and drivers, and then passes them on
to gcp_connect in gcp.py. The constants and function signatures are the same
as the old gce.py, so compatibility with existing modules is retained.
- A new gcdns.py module was created to support PR ansible/ansible-modules-extras#2252
for two new Google Cloud DNS modules, and to demonstrate support for a non-GCE
Google Cloud service. It follows the same basic structure as the new gce.py module,
but imports from libcloud.dns instead.
