"""
NetworkNamespace = ``/bin/ls /var/run/netns``
=============================================
This specs provides list of network namespace created on the host machine.
Typical output of this command is as below::
temp_netns temp_netns_2 temp_netns_3
The ``/bin/ls /var/run/netns`` is prefered over ``/bin/ip netns list`` because it works on
all RHEL versions, no matter ip package is installed or not.
Examples:
>>> type(netns_obj)
<class 'insights.parsers.net_namespace.NetworkNamespace'>
>>> netns_obj.netns_list
['temp_netns', 'temp_netns_2', 'temp_netns_3']
>>> len(netns_obj.netns_list)
3
"""
from insights.core import Parser
from insights.core.exceptions import SkipComponent
from insights.core.plugins import parser
from insights.parsers import get_active_lines
from insights.specs import Specs
[docs]
@parser(Specs.namespace)
class NetworkNamespace(Parser):
[docs]
def parse_content(self, content):
if not content:
raise SkipComponent('Nothing to parse.')
self._netns_list = []
for line in get_active_lines(content):
self._netns_list.extend(line.split())
@property
def netns_list(self):
"""
This method returns list of network namespace created
in process memory.
Returns:
`list` of network namepaces if exists.
"""
return self._netns_list