#!/usr/bin/python
-
+#
# Copyright (c) 2003 Intel Corporation
# All rights reserved.
#
# if this file is present in the vservers /etc directory,
# the resolv.conf and hosts files will automatically be updated
# by the bootmanager
-UPDATE_FILE_FLAG= "AUTO_UPDATE_NET_FILES"
+UPDATE_FILE_FLAG = "AUTO_UPDATE_NET_FILES"
-def Run( vars, log ):
+def Run(vars, log):
"""
Reconfigure a node if necessary, including rewriting any network init
scripts based on what PLC has. Also, update any slivers on the machine
configuration file
"""
- log.write( "\n\nStep: Updating node configuration.\n" )
+ log.write("\n\nStep: Updating node configuration.\n")
# make sure we have the variables we need
try:
- INTERFACE_SETTINGS= vars["INTERFACE_SETTINGS"]
+ INTERFACE_SETTINGS = vars["INTERFACE_SETTINGS"]
if INTERFACE_SETTINGS == "":
- raise ValueError, "INTERFACE_SETTINGS"
+ raise ValueError("INTERFACE_SETTINGS")
- SYSIMG_PATH= vars["SYSIMG_PATH"]
+ SYSIMG_PATH = vars["SYSIMG_PATH"]
if SYSIMG_PATH == "":
- raise ValueError, "SYSIMG_PATH"
+ raise ValueError("SYSIMG_PATH")
- ROOT_MOUNTED= vars["ROOT_MOUNTED"]
+ ROOT_MOUNTED = vars["ROOT_MOUNTED"]
if ROOT_MOUNTED == "":
- raise ValueError, "ROOT_MOUNTED"
+ raise ValueError("ROOT_MOUNTED")
- except KeyError, var:
- raise BootManagerException, "Missing variable in vars: %s\n" % var
- except ValueError, var:
- raise BootManagerException, "Variable in vars, shouldn't be: %s\n" % var
+ except KeyError as var:
+ raise BootManagerException("Missing variable in vars: {}\n".format(var))
+ except ValueError as var:
+ raise BootManagerException("Variable in vars, shouldn't be: {}\n".format(var))
try:
- ip= INTERFACE_SETTINGS['ip']
- method= INTERFACE_SETTINGS['method']
- hostname= INTERFACE_SETTINGS['hostname']
- domainname= INTERFACE_SETTINGS['domainname']
- except KeyError, var:
- raise BootManagerException, \
- "Missing network value %s in var INTERFACE_SETTINGS\n" % var
+ ip = INTERFACE_SETTINGS['ip']
+ method = INTERFACE_SETTINGS['method']
+ hostname = INTERFACE_SETTINGS['hostname']
+ domainname = INTERFACE_SETTINGS['domainname']
+ except KeyError as var:
+ raise BootManagerException(
+ "Missing network value {} in var INTERFACE_SETTINGS\n".format(var))
if not ROOT_MOUNTED:
- raise BootManagerException, "Root isn't mounted on SYSIMG_PATH\n"
+ raise BootManagerException("Root isn't mounted on SYSIMG_PATH\n")
- log.write( "Updating vserver's /etc/hosts and /etc/resolv.conf files\n" )
+ log.write("Updating vserver's /etc/hosts and /etc/resolv.conf files\n")
# create a list of the full directory paths of all the vserver images that
# need to be updated.
- update_path_list= []
+ update_path_list = []
- for base_dir in ('/vservers','/vservers/.vref','/vservers/.vcache'):
+ for base_dir in ('/vservers', '/vservers/.vref', '/vservers/.vcache'):
try:
- full_dir_path= "%s/%s" % (SYSIMG_PATH,base_dir)
- slices= os.listdir( full_dir_path )
+ full_dir_path = "{}/{}".format(SYSIMG_PATH, base_dir)
+ slices = os.listdir(full_dir_path)
try:
slices.remove("lost+found")
- except ValueError, e:
+ except ValueError as e:
pass
- update_path_list= update_path_list + map(lambda x: \
- full_dir_path+"/"+x,
- slices)
- except OSError, e:
+ update_path_list = update_path_list + \
+ ["{}/{}".format(full_dir_path, x) for x in slices]
+
+ except OSError as e:
continue
- log.write( "Updating network configuration in:\n" )
+ log.write("Updating network configuration in:\n")
if len(update_path_list) == 0:
- log.write( "No vserver images found to update.\n" )
+ log.write("No vserver images found to update.\n")
else:
for base_dir in update_path_list:
- log.write( "%s\n" % base_dir )
+ log.write("{}\n".format(base_dir))
# now, update /etc/hosts and /etc/resolv.conf in each dir if
# the update flag is there
for base_dir in update_path_list:
- update_vserver_network_files(base_dir,vars,log)
+ update_vserver_network_files(base_dir, vars, log)
return
-def update_vserver_network_files( vserver_dir, vars, log ):
+def update_vserver_network_files(vserver_dir, vars, log):
"""
Update the /etc/resolv.conf and /etc/hosts files in the specified
vserver directory. If the files do not exist, write them out. If they
"""
try:
- SYSIMG_PATH= vars["SYSIMG_PATH"]
+ SYSIMG_PATH = vars["SYSIMG_PATH"]
if SYSIMG_PATH == "":
- raise ValueError, "SYSIMG_PATH"
+ raise ValueError("SYSIMG_PATH")
- INTERFACE_SETTINGS= vars["INTERFACE_SETTINGS"]
+ INTERFACE_SETTINGS = vars["INTERFACE_SETTINGS"]
if INTERFACE_SETTINGS == "":
- raise ValueError, "INTERFACE_SETTINGS"
+ raise ValueError("INTERFACE_SETTINGS")
- except KeyError, var:
- raise BootManagerException, "Missing variable in vars: %s\n" % var
- except ValueError, var:
- raise BootManagerException, "Variable in vars, shouldn't be: %s\n" % var
+ except KeyError as var:
+ raise BootManagerException("Missing variable in vars: {}\n".format(var))
+ except ValueError as var:
+ raise BootManagerException("Variable in vars, shouldn't be: {}\n".format(var))
try:
- ip= INTERFACE_SETTINGS['ip']
- method= INTERFACE_SETTINGS['method']
- hostname= INTERFACE_SETTINGS['hostname']
- domainname= INTERFACE_SETTINGS['domainname']
- except KeyError, var:
- raise BootManagerException, \
- "Missing network value %s in var INTERFACE_SETTINGS\n" % var
+ ip = INTERFACE_SETTINGS['ip']
+ method = INTERFACE_SETTINGS['method']
+ hostname = INTERFACE_SETTINGS['hostname']
+ domainname = INTERFACE_SETTINGS['domainname']
+ except KeyError as var:
+ raise BootManagerException(
+ "Missing network value {} in var INTERFACE_SETTINGS\n".format(var))
try:
os.listdir(vserver_dir)
except OSError:
- log.write( "Directory %s does not exist to write network conf in.\n" %
- vserver_dir )
+ log.write("Directory {} does not exist to write network conf in.\n"
+ .format(vserver_dir))
return
- file_path= "%s/etc/%s" % (vserver_dir,UPDATE_FILE_FLAG)
- update_files= 0
- if os.access(file_path,os.F_OK):
- update_files= 1
+ file_path = "{}/etc/{}".format(vserver_dir, UPDATE_FILE_FLAG)
+ update_files = 0
+ if os.access(file_path, os.F_OK):
+ update_files = 1
+ # Thierry - 2012/03 - I'm renaming vserver-reference into sliceimage
+ # however I can't quite grasp the reason for this test below, very likely
+ # compatibility with very old node images or something
if '/.vref/' in vserver_dir or \
'/.vcache/' in vserver_dir or \
'/vserver-reference' in vserver_dir:
- log.write( "Forcing update on vserver reference directory:\n%s\n" %
- vserver_dir )
- utils.sysexec_noerr( "echo '%s' > %s/etc/%s" %
- (UPDATE_FILE_FLAG,vserver_dir,UPDATE_FILE_FLAG),
- log )
- update_files= 1
+ log.write("Forcing update on vserver reference directory:\n{}\n"
+ .format(vserver_dir))
+ utils.sysexec_noerr("echo '{}' > {}/etc/{}"
+ .format(UPDATE_FILE_FLAG, vserver_dir, UPDATE_FILE_FLAG),
+ log)
+ update_files = 1
if update_files:
- log.write( "Updating network files in %s.\n" % vserver_dir )
+ log.write("Updating network files in {}.\n".format(vserver_dir))
try:
# NOTE: this works around a recurring problem on public pl,
# suspected to be due to mismatch between 2.6.12 bootcd and
# 2.6.22/f8 root environment. files randomly show up with the
# immutible attribute set. this clears it before trying to write
# the files below.
- utils.sysexec( "chattr -i %s/etc/hosts" % vserver_dir )
- utils.sysexec( "chattr -i %s/etc/resolv.conf" % vserver_dir )
+ utils.sysexec("chattr -i {}/etc/hosts".format(vserver_dir), log)
+ utils.sysexec("chattr -i {}/etc/resolv.conf".format(vserver_dir), log)
except:
pass
- file_path= "%s/etc/hosts" % vserver_dir
- hosts_file= file(file_path, "w" )
- hosts_file.write( "127.0.0.1 localhost\n" )
+ file_path = "{}/etc/hosts".format(vserver_dir)
+ hosts_file = file(file_path, "w")
+ hosts_file.write("127.0.0.1 localhost\n")
if method == "static":
- hosts_file.write( "%s %s.%s\n" % (ip, hostname, domainname) )
+ hosts_file.write("{} {}.{}\n".format(ip, hostname, domainname))
hosts_file.close()
- hosts_file= None
+ hosts_file = None
- file_path= "%s/etc/resolv.conf" % vserver_dir
+ file_path = "{}/etc/resolv.conf".format(vserver_dir)
if method == "dhcp":
# copy the resolv.conf from the boot cd env.
- utils.sysexec( "cp /etc/resolv.conf %s/etc" % vserver_dir, log )
+ utils.sysexec("cp /etc/resolv.conf {}/etc".format(vserver_dir), log)
else:
# copy the generated resolv.conf from the system image, since
# we generated it via static settings
- utils.sysexec( "cp %s/etc/resolv.conf %s/etc" % \
- (SYSIMG_PATH,vserver_dir), log )
+ utils.sysexec("cp {}/etc/resolv.conf {}/etc"
+ .format(SYSIMG_PATH, vserver_dir), log)
return