* fix fedora version dnf fact, default pkg_mgr detection per distro family
* loop over possible dnf/yum paths in case there are multiple canonical sources later in life
Signed-off-by: Adam Miller <admiller@redhat.com>
* Properly handle default package manager vs apt
For distros where apt might be installed but is not the default
package manager for the distro, properly identify the default distro
package manager during fact finding and re-use fact finding from
DistributionFactCollector and instead of reimplementing small
portions of it in PkgMgrFactCollector
Add unit test to always check the apt + Fedora combination to test
the new code.
Fixes#34014
Signed-off-by: Adam Miller <admiller@redhat.com>
* remove q debugging output I accidentally left behind
Signed-off-by: Adam Miller <admiller@redhat.com>
* add os_family to the conditional so we're only hitting that code path when needed
Signed-off-by: Adam Miller <admiller@redhat.com>
* setup for a _check* pattern for general os_family group pkg_mgr checking
Signed-off-by: Adam Miller <admiller@redhat.com>
* use Mock.patch decorator for os.path.exists in TestPkgMgrFactsAptFedora
Signed-off-by: Adam Miller <admiller@redhat.com>
When parsing the distribution files such as /etc/os-release, we extract
the full distribution version but not the major version. As such, the
ansible_distribution_major_version ends up being 'NA' whereas the
ansible_distribution_version contains the full version.
Before this patch we get this on openSUSE Leap 15
ansible -o localhost -m setup -a filter=ansible_distribution_major_version
localhost | SUCCESS => {"ansible_facts": {"ansible_distribution_major_version": "NA"}, "changed": false}
After this patch we get this
ansible -o localhost -m setup -a filter=ansible_distribution_major_version
localhost | SUCCESS => {"ansible_facts": {"ansible_distribution_major_version": "15"}, "changed": false}
This also fixes the Tumbleweed distribution test to report a proper
major version and also adds a test for openSUSE Leap 15.0 to avoid
potential future regressions.
Fixes: #41410
In the current state of the code, the nvme partitions are returned as empty as in :
"ansible_devices": {
"nvme0n1": {
"model": "SAMSUNG MZVLW256HEHP-000L7",
"partitions": {},
The parsing of the /sys/block/<diskname> try to find a disk named like :
<diskname><x> as in sda1 for sda
But in the nvme context, the partition of nvme0n1 is named nvme0n1p1.
This add a possible 'p' between the diskname and the partname.
This patch simply add the option of having a 'p' between the diskname
and the partname.
The patch works on my host :
"model": "INTEL SSDPEDMD400G4",
"partitions": {
"nvme0n1p1": {
...
"size": "93.13 GB",
}
Fixes#38742
Signed-off-by: Erwan Velu <erwan@redhat.com>
* continue fact gathering even without dmidecode
If dmidecode is not available we still wan to continue with fact
gathering.
On certain platforms dmidecode just won't work
The product string (used as the DMI product name) changed from
"OpenStack Nova" to "OpenStack Compute" between Mitaka and Newton
in the OpenStack RDO packaging.
This fixes an indention bug introduced in
45a9f96774
that was causing the virtualization_role to be set to 'host'
for many cases incorrectly.
Fixes https://github.com/ansible/ansible/pull/21621
(the issue mentioned in the pr)
Add deps/requires for fact collectors
Fact collectors can now set a required_facts
class attribute that will be a set of the names
of fact collectors they require to be run first.
ie, if a collector needs to know the ansible_distribution,
it should set it's required_facts to include 'distribution'
required_facts = set(['distribution'])
If a collector requires another collector, it gets added
to the selected collector names.
We then topological sort the ordering of the collectors
so that deps work out (ie, 'distribution' will run before
'service_mgr')
required_facts were added to the collectors for:
- network (requires 'distribution', 'platform')
- hardware (requires 'platform')
- service_mgr (requires 'distribution', 'platform')
Fix name references for facts (need 'ansible_' prefix)
is service_mgr
Fixes#30753
* add documentation around commonly-used Facts for Conditionals
There are a few Facts that are often used for Conditionals, so
documenting them on the Conditionals page with their possible values.
* Edit
The accumulated collected_facts was being update
with new facts _after_ filtering them. So only
facts that pass the filter would ever be passed
to other fact collectors.
For 'filter=ansible_service_mgr', even though it requires
the platform and distribution facts and even collects them,
they would get filtered out and never passed to the other
collectors that need them (service_mgr for ex).
Fix is just to add the unfiltered facts to collected_facts.
Adds unit tests for fact filter and collected_facts.
Fixes#32286
The search string used to look for Clear Linux
was changed in 45a9f96774 to
be more specific, but was too specific. Now finding
a substring match for 'Clear Linux' in /usr/lib/os-release
is enough to consider a match.
Since the details of the full name in os-release varies
('Clear Linux Software for Intel Architecture',
'Clear Linux OS for Intel Architecture', etc) the
search string match was failing and would fall back to the
'first word in the release file' method resulting in
ansible_distribution='NAME="Clear'
Also add a meta fact indicating which search string
was matched.
Test case info from:
https://github.com/ansible/ansible/issues/31501#issuecomment-340861535Fixes#31501
This fixes fact gathering of VMware guest machines with
older Linux Kernel versions. These older Kernels do not support /sys
filesystem which is used to gather virtualization related facts.
'dmidecode' is the safest option to find out virtualization related facts.
Fixes: #21573
Signed-off-by: Abhijeet Kasurde <akasurde@redhat.com>
On Fedora Atomic Host, there is no yum or dnf, but the module ot use to
install package should be atomic_container. We verify that this is
a Fedora Atomic Host with rpm-ostree, not atomic since atomic
can be used on a regular non ostree distribution.
The platform/distro/etc facts were being passed in
correctly, but service_mgr.py was looking up the
wrong names ('system' vs 'ansible_system') resulting
in service_mgr falling back to default 'service' result.
Fixes#30753, #31095
* Make ansible_selinux facts a consistent type
Rather than returning a bool if the Python library is missing, return a dict with one key containing a message explaining there is no way to tell the status of SELinux on the system becasue the Python library is not present.
* Fix unit test
* Add new lines to end of config file lines
* Properly write out selinux config file
Change module behavior to not always report a change but warn if a reboot is needed and return reboot_required.
Improve the output messages.
Add strip parameter to get_file_lines utility to help with parsing the selinux config file.
* Add return documentation
* Add integration tests for selinux module
* Use consistent capitalization for SELinux
* Use atomic_move in selinux module
* Don't copy the config file initially
There's no need to make a copy just for reading.
* Put message after set_config_policy in case the change fails
* Add aliases to selinux tests
The /etc/os-release based distro detection doesn't
seem to work for Ubuntu 10.04 (no /etc/os-release?).
So it was testing the next case which was /etc/lsb-release to
see if it is 'Mandriva'. Since the check for existence of
(/etc/lsb-release, Mandrive) was the first non-empty dist
file match, 'ansible_distribution' was being set to 'Mandriva'
expecting to be corrected by the data from the dist file content.
But since the dist file parsing for Mandriva didn't match for
Ubuntu 10.04 /etc/lsb-release _and_ there is no Debian specific
lsb-release check, 'ansible_distribution' stayed at 'Mandriva'
and the dist file checking loop keeps going and eventually off
the end of the list before finding a better match.
Adding a debian/ubuntu specific check for /etc/lsb-release after
the debian os-release sets the info correctly and stops further
checking of dist files.
Fixes#30693
'distribution' facts were being set after checking
the existence of the dist file, and then being set
again with more detail after they were succesfully parsed.
But if the dist file was not succesfully parsed and
matched the required names, the loop continues
without resetting the earlier set facts. This is
how 'Mandriva' would end up being the 'distribution'
file for unrelated cases (it would find /etc/lsb-release,
set distro to 'Mandriva', then fail to parse/match and
continue the loop. If no other checks worked, 'Mandriva'
would stick).
* parse_dist_file_NA should check 'name' not distro for NA
parse_distribution_file_NA was checking the incoming
'distribution' fact to be 'NA', but the fact itself can
be specific at that point ('KDE Neon', for ex) but the
check is really if the 'name' it was passed is NA.
* for matches on OS_RELEASE_ALIAS (ie, 'Archlinux') do
not continue if the dist file content doesn't match. Previously
it had to because of the 'Mandriva' bug mentioned above.
This is a more general fix for #30693 than #30723
Fixes #30693
Related to #30600
* Fix fact failures cause by ordering of collectors
Some fact collectors need info collected by other facts.
(for ex, service_mgr needs to know 'ansible_system').
This info is passed to the Collector.collect method via
the 'collected_facts' info.
But, the order the fact collectors were running in is
not a set order, so collectors like service_mgr could
run before the PlatformFactCollect ('ansible_system', etc),
so the 'ansible_system' fact would not exist yet.
Depending on the collector and the deps, this can result
in incorrect behavior and wrong or missing facts.
To make the ordering of the collectors more consistent
and predictable, the code that builds that list is now
driven by the order of collectors in default_collectors.py,
and the rest of the code tries to preserve it.
* Flip the loops when building collector names
iterate over the ordered default_collectors list
selecting them for the final list in order instead
of driving it from the unordered collector_names set.
This lets the list returned by select_collector_classes
to stay in the same order as default_collectors.collectors
For collectors that have implicit deps on other fact collectors,
the default collectors can be ordered to include those early.
* default_collectors.py now uses a handful of sub lists of
collectors that can be ordered in default_collectors.collectors.
fixes#30753fixes#30623
* Fix 'distribution' fact for ArchLinux
Allow empty wasn't breaking out of the process_dist_files
loop, so a empty /etc/arch-release would continue searching
and eventually try /etc/os-release. The os-release parsing
works, but the distro name there is 'Arch Linux' which does
not match the 2.3 behavior of 'Archlinux'
Add a OS_RELEASE_ALIAS map for the cases where we need to get
the distro name from os-release but use an alias.
We can't include 'Archlinux' in SEARCH_STRING because a name match on its keys
but without a match on the content causes a fallback to using the first
whitespace seperated item from the file content as the name.
For os-release, that is in form 'NAME=Arch Linux'
With os-release returning the right name, this also supports the
case where there is no /etc/arch-release, but there is a /etc/os-release
Fixes#30600
* pep8 and comment cleanup
On sparc64, /proc/cpuinfo has no usual 'model name', 'Processor', 'vendor_id', 'Vendor',
as a result "ansible_processor_vcpus" is always 1.
Add check element "ncpus active" to fix the issue.
* Fix pkg_mgr fact on OpenBSD
Add a OpenBSDPkgMgrFactCollector that hardcodes pkg_mgr
to 'openbsd_pkg'. The ansible collector will choose the
OpenBSD collector if the system is OpenBSD and the 'Generic'
one otherwise.
This removes PkgMgrFactCollectors depenency on the
'system' fact being in collected_facts, which also
avoids ordering issues (if the pkg mgr fact is collected
before the system fact...)
Fixes#30623
CloudLinux and OpenVZ have common roots, but CloudLinux does not really
provide OS virtualization so it should not be regarded as a 'openvz'
system. This change adds a check for the existance of the LVE kernel
module which only exists on CloudLinux.
Fixes: https://github.com/ansible/ansible/issues/26424
If a PV hasn't been added to a VG i.e.:
[pmcclory@box ~]$ sudo pvs --noheadings --nosuffix --units g
/dev/xvdb lvm2 ---- 10.00 10.00
/dev/xvdv1 vg0 lvm2 a--u 24.99 0
Than ansible_facts.ansible_lvm will be unset after running setup module.
The issue is that the module splits on whitespace, which causes an
indexing error when the VG column is empty.
Fix is to add the separator field and safely split on that.
previously gather_subset=['!all'] would still gather the
min set of facts, and there was no way to collect no facts.
The 'min' specifier in gather_subset is equilivent to
exclude the minimal_gather_subset facts as well.
gather_subset=['!all', '!min'] will collect no facts
This also lets explicitly added gather_subsets override excludes.
gather_subset=['pkg_mgr', '!all', '!min'] will collect only the pkg_mgr
fact.
* Add 2.0-2.3 facts api compat (ansible_facts(), get_all_facts())
These are intended to provide compatibilty for modules that
use 'ansible.module_utils.facts.ansible_facts' and
'ansible.module_utils.facts.get_all_facts' from 2.0-2.3 facts
API.
Fixes#25686
Some related changes/fixes needed to provide the compat api:
* rm ansible.constants import from module_utils.facts.compat
Just use a hard coded default for gather_subset/gather_timeout
instead of trying to load it from non existent config if the
module params dont include it.
* include 'external' collectors in compat ansible_facts()
* Add facter/ohai back to the valid collector classes
facter/ohai had gotten removed from the default_collectors
class used as the default list for all_collector_classes by
setup.py and compat.py
That made gather_subset['facter'] fail.
It was in lib/ansible/modules/system/setup.py since it
was the only thing using it, but move it back to module_utils
and add a ansible_collector.get_ansible_collector() to build
a facts collector just like the one used by setup.py
mv test_setup.py -> test_ansible_collector.py
All the code it was testing is now in ansible_collector
rm code to create 'ansible_facts' subkey from namespace
Just leave it up to the caller to do, and just return a
flat dictionary from AnsibleFactCollector.collect()
VMware provides a different DMI product name for VMs booted via UEFI vs BIOS.
VMware provides a different DMI product name for VMs booted via UEFI ('VMware7,1') vs BIOS ('VMware Virtual Platform')
Fixes#26517
At present, the available facts around block devices are not sufficient to be able to find stable names guaranteed to work across reboots, or to identify block devices by label (UUID, etc).
This patch provides a list of observed links for each device. It relies on functionality specific to Linux (as does the existing sysfs-based code which it extends), but should not cause issues on other platforms.
Moreover, it prevents virtual devices from being excluded, and links such devices to the physical devices to which they are attached.
* Add more mount point statvfs info including sizes
Based on https://github.com/ansible/ansible/pull/12073
facts.utils.get_mount_size() now returns a dict of most
of the posix statvfs data, including block_size and inode
counts.
Update the facts.hardware classes that use get_mount_size() to
use the new info by mount_info.update(mount_statvfs_inof) to merge.
* add back unit tests for LinuxHardware mount/fs facts
* add test cases for facts.utils.get_mount_size
* Support NetBSD 7.1+ style ifconfig -a output
network facts on NetBSD after 7.1 cvs would fail
because of format changes in 'ifconfig -a' output.
update code to support new and old format.
add unit tests for both based on
examples from Bruce V Chiarelli.
* wrap use of interfaces.keys() in list() for py3 compat
* sort interface ids for stability
* Fix ansible_cmdline initrd fact for UEFI
UEFI cmdline paths use \ path sep which would
get munged by cmdline fact collection.
* Make CmdLineFactCollector easier to test
extract the parsing of the /proc/cmdline content to
_parse_proc_cmdline()
add a wrapper method for get_file_content _get_proc_cmdline()
Add unit tests of _parse_proc_cmdline based on examples
from issue #23647Fixes#23647
Fix 'hostname' module Facts is not defined by updating
'hostname' module to use it.
is_systemd_managed() was previously on the module_utils.facts.Facts
class that no longer exists.
Fixes#25289
Facts Refresh (2.4 roadmap)
This commit implements most of the 2.4 roadmap 'Facts Refresh'
- move facts.py to facts/__init__.py
- move facts Distribution() to its own class
- add a facts/utils.py
- move get_file_content and get_uname_version to facts/utils.py
- move Facts() class from facts/__init__ to facts/facts.py
- mv get_file_lines to facts/utils.py
- mv Ohai()/Facter() class to facts/ohai.py and facter.py
- Start moving fact Hardware() classes to facts/hardware/*.py
- mv HPUX() hardware class to facts/hardware/hpux.py
- move SunOSHardware() fact class to facts/hardware/sunos.py
- move OpenBSDHardware() class to facts/hardware/openbsd.py
- mv FreeBsdHardware() and DragonFlyHardware() to facts/hardware/
- mv NetBSDHardware() to facts/hardware/netbsd.py
- mv Darwin() hardware class to facts/hardware/darwin.py
- pep8/etc cleanups on facts/hardware/*.py
- Mv network facts classes to facts/network/*.py
- mv Virtual fact classes to facts/virtual
- mv Hardware.get_sysctl to facts/sysctl.py:get_sysctl
- Also mv get_uname_version from facts/utils.py -> distribution.py
since distribution.py is the only thing using it.
- add collector.py with new BaseFactCollector
- add a subclass for AnsibleFactCollector
- hook up dict key munging FactNamespaces
- add some test cases for testing the names of facts
- mv timeout stuff to facts.timeout
- rm ansible_facts()/get_all_facts() etc
- Instead of calling facts.ansible_facts(), fact collection
api used by setup.py is now to create an AnsibleFactCollector()
and call it's collect method.
- replace Facts.get_user_facts with UserFactCollector
- add a 'systems' facts package, mv UserFactCollector there
- mv get_dns_facts to DnsFactCollector
- mv get_env_facts to EnvFactCollector
- include the timeout length in exception message
- modules and module_utils that use AnsibleFactCollector
can now theoretically set the 'valid_subsets'
May be useful for network facts module that currently have
to reimplement a good chunk of facts.py to get gather_subsets
to work.
- get_local_facts -> system/LocalFactCollector
- get_date_time -> system/date_time.py
- get_fips_facts -> system/fips.py
- get_caps_facts() -> system/caps.py
- get_apparmor_facts -> system/apparmor.py
- get_selinux_facts -> system/selinux.py
- get_lsb_facts -> system/lsb.py
- get_service_mgr_facts -> system/service_mgr.py
- Facts.is_systemd_managed -> system/service_mgr.py
- get_pkg_mgr_facts -> system/pkg_mgr.py
- Facts()._get_mount_size_facts() -> facts.utils.get_mount_size()
- add unit test for EnvFactCollector
- add a test case for minimal gather_subsets
- add test case for collect_ids
- Make gather_subset match existing behavior or '!all'
If 'gather_subset' is provided as '!all', the existing behavior
(in 2.2/2.3) is that means 'dont collect any facts except those
from the Facts() class'. So 'skip everything except
'apparmor', 'caps', 'date_time', 'env', 'fips', 'local', 'lsb',
'pkg_mgr', 'python', 'selinux', 'service_mgr', 'user', 'platform', etc.
The new facts setup was making '!all' mean no facts at all, since
it can add/exclude at a finer granularity. Since that makes more
sense for the ansible collector, and the set of minimal facts to
collect is really more up to setup.py to decide we do just that.
So if setup.py needs to always collect some gather_subset, even
on !all, setup.py needs to have the that subset added to the
list it passes as minimal_gather_subset.
This should fix some intg tests that assume '!all' means that
some facts are still collected (user info and env for example).
If we want to make setup.py collect a more minimal set, we can do that.
- force facts_dicts.keys() to a list so py3 works
- split fact collector tests to test_collectors.py
- convert Facter(Facts) -> other/facter.py:FacterFactCollector
- add FactCollector.collect_with_namespace()
regular .collect() will return a dict with the key names
using the base names ('ip_address', 'service_mgr' etc)
.collect_with_namespace() will return a dict where the key names
have been transformed with the collectors namespace, if there is
one. For most, this means a namespace that adds 'ansible_' to the
start of the key name.
For 'FacterFactCollector', the namespace transforms the key to
'facter_*'.
- add test cases for collect_with_namespace
- move all the concrete 'which facts does setup.py' stuff to setup.py
The caller of AnsibleFactCollector.from_gather_subset() needs to
pass in the list of collector classes now.
- update system/setup.py to import all of the fact classes and pass
in that list.
- split the Distribution fact class up a bit
extracted the 'distro release' file handling (ie, linux
boxes with /etc/release, /etc/os-release etc) into its
own class.
- extract get_cmdline_facts -> cmdline.py
- extract get_public_ssh_host_keys -> system/ssh_pub_keys.py
- extract get_platform_facts -> system/platform.py
platform.py may be a good candidate for further splitting.
- rm test for plain Facts() base class
- let the base class for Collector unit tests provide collected_facts
some Collectors and/or their migrated Facts() subsclasses need
to look at facts collected by other modules ('ansible_architecture'
the main one...).
Collector.collect() has the collected_facts arg for this, so add
a class variable to BaseFactsTest so we can specify it.
- mv Ohai to other/ohai.py and convert to Collector
- update hardware/*.py to return facts (no side effects)
- mv AnsibleFactCollector to setup.py
- extra collector class gathering to module method in
facts/__init__.py (collector_classes_from_gather_subset)
- add a CollectorMetaDataCollector collector used to provide
the 'gather_setup' fact
- add unit test module for 'setup' module
(test/units/modules/system/setup.py)
- Collector init now doesnt need a module, but collect does
An instance of a FactCollector() isnt tied to a AnsibleModule
instance, but the collect() method can be, so optionally pass
in module to FactCollector.collect() (everywhere)
- add a default_collectors for list of default collectors
import and use it from setup.py module
eventually, would like to replace this with a plugin loader
style class finder/loader
- unit tests for module_utils/facts/__init__.py
- add unit tests for ohai facts collector
- remove self.facts side effect on populate() in hardware/sunos.py
- convert OpenBSDHardware() to rm side effects on self.facts
- try to rm some self.facts side effects in Network()
plumb in collected_facts from populate() where it is needed.
stop passing collected_facts into Network() [via cached_facts=,
where it eventually becomes self.facts]
- nothing provides Fact() cached_facts arg now, rm it
Facts() should be internal only implementation so nothing
should be using it.
Of course, now someone will.
- add a Collector.name attr to build a map of name->_fact_ids
To properly exclude a gather_subset spec like '!hardware', we
need to know that 'hardware' also means 'devices', 'dmi', etc.
Before, '!hardware' would remove the 'hardware' collector name
but not 'devices'. Since both would end up in id_collector_map,
we would still end up with the HardwareCollector in the collector
list. End result being that '!hardware' wouldn't stop hardware
from being collected.
So we need to be able to build that map, so add the Collector.name
attribute that is the primary name (like 'hardware') and let
Collector._fact_ids be the other fact ids that a collector is
responsible for.
Construct the aliases_map of Collector.name -> set of _fact_ids
in fact/__init__.py get_collector_names, and use it when we are
populating the exclude set.
- refactor of distribution.py
make the big OS_FAMILY literal a little easier to read
Also keys can now be any string instead of python literals
99% sure the test for 'KDE Neon' was wrong
I don't see how/where it should or could get 'Neon' instead
of 'KDE Neon' as provided in os-release NAME=
Use 'distribution' string for key to OS_MAP
ie, we dont need to make it a valid python label anymore so dont.
move _has_dist_file to module as _file_exists
easier to mock without mucking with os.path
mv platform.system() calls to within get_distribution_facts() instead
of Distribution() init.
- remove _json compat module
The code in here was to support:
-a 'json' python module that was not the standard one included
with python since 2.6.
- potentially fallback to simplejson if 'json' was not available.
'json' is available for all supported python versions now so
no longer needed.
- mv get_collector_names -> facts.collector
- mv collector_classes_from_gather_subset -> facts.collector
- mv collector tests from test_facts -> test_collector
- Use six's reduce() in sunos/netbsd hardware facts
- rm extraneous get_uname_version in utils
only system/distribution.py uses it
- Remove Facts() subclass metaclass usage
- using fact_id and a platform id for matching collectors
gut most of Facts() subclasses
rm Facts() subclasses with weird metaclass
only add collectors that match the fact_ids and the platform_info
to the list of collectors used.
atm, a collectors platform_id will default to 'Generic', and
any platform matches 'Generic'
goal is to select collector classes including matching the
systems platform in collector.py, instead of relying on
metaclasses in hardware/*. To finish this, the various
Facts() subclasses will need to be replaced entirely with
Collector() subclasses.
use collector classmethod platform_match() to match the platform
This lets the particular class decide if it is compatible with
a given platform_info. platform_info is a dict like obj, so it could be
expanded in the future.
Add a default platform_match to BaseFactCollector that matches
platform_info['system'] == cls._platform
They were needed previously to trigger a module
load on all the collector classes when we import
facts/hardare so that the Hardware() and related
classes that used __new__ and find_all_subclasses()
would work.
Now that is done in collectors based on platform matching
at runtime we dont need to do it py module import/parse
time. So the non empty __init__.pys are no longer needed
and their is a more flexible mechanism for selection
platform specific stuff.
facts/facts.py is no longer used, rm'ed
- if we dont find an implement class for gather spec.. just ignore it.
Would be useful to add a warn to warn about this case.
- Fix SD-UX typo (should be HP-UX)
- Port fix for #21893 (0 sockets) to this branch
This readds the change from 8ad182059d
that got lost in merge/rebase
Fixes#21893
- port sunos fact locale fix for #24542 to this branch
based on e558ec19cdFixes#24542
Solaris fact fix (#24793)
ensure locale for solaris fact gathering
fixes issue with locale interfering with proper reading of decimals
- raise exceptions in the air like we just dont care.
Pretty much ignore any not exit exception in facts
collection. And add some test cases.
- added new selinux fact to clarify python lib
the selinux fact is boolean false when the library is not installed,
a dictionary/hash otherwise, but this is ambigous
added new fact so we can eventually remove the type dichtomy and normalize it as a dict
Re-add of devel commit 85c7a7b844 to
the new code layout, since it got removed in merge/rebase