"""
UpstartInitctlList - Command ``initctl --system list``
======================================================
Parser to parse the output of ``initctl --system list`` command.
"""
from insights.core import CommandParser
from insights.core.exceptions import SkipComponent
from insights.core.plugins import parser
from insights.specs import Specs
[docs]
@parser(Specs.initctl_lst)
class UpstartInitctlList(CommandParser):
"""
Class to parse the output of initctl command. It allows a
system administrator to communicate and interact with the
Upstart init(8) daemon and list the services managed by
Upstart init.
Sample output::
rc stop/waiting
vmware-tools start/running
tty (/dev/tty3) start/running, process 9499
tty (/dev/tty2) start/running, process 9495
tty (/dev/tty1) start/running, process 9493
tty (/dev/tty6) start/running, process 9507
tty (/dev/tty5) start/running, process 9505
tty (/dev/tty4) start/running, process 9502
tty (/dev/ttyS0) start/running, process 9509
plymouth-shutdown stop/waiting
control-alt-delete stop/waiting
rcS-emergency stop/waiting
readahead-collector stop/waiting
kexec-disable stop/waiting
quit-plymouth stop/waiting
rcS stop/waiting
prefdm stop/waiting
init-system-dbus stop/waiting
ck-log-system-restart stop/waiting
readahead stop/waiting
ck-log-system-start stop/waiting
splash-manager stop/waiting
start-ttys stop/waiting
readahead-disable-services stop/waiting
ck-log-system-stop stop/waiting
rcS-sulogin stop/waiting
serial stop/waiting
Raises:
SkipComponent: When nothing need to parse.
Attributes:
data(list): Daemon details are stored as list of str.
tty(dict): Device details are stored with status and process id.
daemon_proc(dict): Daemon status are stored with its `dameon` name and `status`.
Examples:
>>> type(upstart_obj)
<class 'insights.parsers.upstart.UpstartInitctlList'>
>>> upstart_obj.upstart_managed('vmware-tools')
'vmware-tools start/running'
>>> upstart_obj.daemon_status('vmware-tools')
'start/running'
>>> upstart_obj.daemon_status('start-ttys')
'stop/waiting'
>>> upstart_obj.dev_status('/dev/tty4')
'stop/waiting'
>>> upstart_obj.upstart_managed('/dev/tty3')
'tty (/dev/tty3) start/running, process 9499'
>>> upstart_obj.daemon_proc['quit-plymouth']
'stop/waiting'
>>> upstart_obj.tty['/dev/tty4']['status']
'stop/waiting'
>>> sorted(upstart_obj.data)[0]
'ck-log-system-restart stop/waiting'
"""
[docs]
def parse_content(self, content):
self.data = []
self.tty = {}
self.daemon_proc = {}
if (not content):
raise SkipComponent("No Contents")
for line in content:
self.data.append(line)
if 'dev/tty' in line:
line_s = line.split()
if len(line_s) > 1:
dev = line_s[1].replace('(', '').replace(')', '')
self.tty[dev] = {}
self.tty[dev]['status'] = line_s[2].replace(',', '')
if len(line_s) > 4 and 'process' in line:
self.tty[dev]['process'] = str(line_s[4])
else:
line_s = line.split()
proc = line_s[0]
status = line_s[1]
self.daemon_proc[proc] = status
[docs]
def upstart_managed(self, daemon):
"""
Arguments:
daemon(str): The daemon name
Returns:
(str): This method returns the status of daemon service if it is managed by upstar else it will return `None`.
"""
for line in self.data:
if daemon in line:
return line
return None
[docs]
def daemon_status(self, daemon):
"""
Arguments:
daemon(str): The daemon name
Returns:
(str): This method will return the status of the process `start/running` or `stop/waiting` if it is managed by upstart else it will return `None`.
"""
return self.daemon_proc.get(daemon, None)
[docs]
def dev_status(self, dev):
"""
Arguments:
dev(str): The tty device name
Returns:
(str): This method will return the status of the tty device `start/running` or `stop/waiting`, along with `process-ID` if it is managed by upstart else it will return `None`.
"""
if dev and dev in self.tty.keys():
return self.tty[dev].get('status', None)