"""
Red Hat Release
===============
Combiner for Red Hat Release information. It uses the results of
the ``Uname`` parser and the ``RedhatRelease`` parser to determine the release
major and minor version. ``Uname`` is the preferred source of data.
The Red Hat Release is in obtained from the system in the form major.minor.
For example, for a Red Hat Enterprise Linux 7.2 system, the release would be
major = 7, minor = 2 and rhel = '7.2'.
"""
from collections import namedtuple
from insights.core.exceptions import SkipComponent
from insights.core.plugins import combiner
from insights.core.serde import deserializer, serializer
from insights.parsers.redhat_release import RedhatRelease as rht_release
from insights.parsers.uname import Uname
Release = namedtuple("Release", field_names=["major", "minor"])
"""namedtuple: Type for storing the release information."""
@serializer(Release)
def serialize(obj, root=None):
return {"major": obj.major, "minor": obj.minor}
@deserializer(Release)
def deserialize(_type, obj, root=None):
return Release(**obj)
[docs]
@combiner([Uname, rht_release])
class RedHatRelease(object):
"""
Combiner class to check uname and redhat-release for RHEL major/minor
version.
Prefer uname to redhat-release.
Attributes:
major (int): The major RHEL version.
minor (int): The minor RHEL version.
rhel (str): The RHEL version, e.g. '7.2', '7.5-0.14'
rhel6 (str): The RHEL version when it's RHEL6, otherwise None
rhel7 (str): The RHEL version when it's RHEL7, otherwise None
rhel8 (str): The RHEL version when it's RHEL8, otherwise None
rhel9 (str): The RHEL version when it's RHEL9, otherwise None
Raises:
SkipComponent: If the version can't be determined even though a Uname
or RedhatRelease was provided.
Examples:
>>> rh_rel.rhel
'7.2'
>>> rh_rel.major
7
>>> rh_rel.minor
2
>>> rh_rel.rhel6 is None
True
>>> rh_rel.rhel7
'7.2'
>>> rh_rel.rhel8 is None
True
"""
def __init__(self, uname, rh_rel):
self.major = self.minor = self.rhel = None
if uname and uname.redhat_release.major != -1:
self.major = uname.redhat_release.major
self.minor = uname.redhat_release.minor
self.rhel = '{0}.{1}'.format(self.major, self.minor)
elif rh_rel and rh_rel.is_rhel:
self.major = rh_rel.major
self.minor = rh_rel.minor
self.rhel = rh_rel.version
if self.rhel is None:
raise SkipComponent("Unable to determine release.")
self.rhel6 = self.rhel if self.major == 6 else None
self.rhel7 = self.rhel if self.major == 7 else None
self.rhel8 = self.rhel if self.major == 8 else None
self.rhel9 = self.rhel if self.major == 9 else None
@serializer(RedHatRelease)
def serialize_RedHatRelease(obj, root=None):
return {
"major": obj.major,
"minor": obj.minor,
"rhel": obj.rhel,
"rhel6": obj.rhel6,
"rhel7": obj.rhel7,
"rhel8": obj.rhel8,
"rhel9": obj.rhel9,
}
@deserializer(RedHatRelease)
def deserialize_RedHatRelease(_type, obj, root=None):
foo = _type.__new__(_type)
foo.major = obj.get("major")
foo.minor = obj.get("minor")
foo.rhel = obj.get("rhel")
foo.rhel6 = obj.get("rhel6")
foo.rhel7 = obj.get("rhel7")
foo.rhel8 = obj.get("rhel8")
foo.rhel9 = obj.get("rhel9")
return foo