-#!/usr/bin/python2
+#!/usr/bin/env python3
-import sys, os
-from random import Random
+import sys
+import os
+import os.path
import string
+from random import Random
from types import StringTypes
from time import strftime
-TIMEFORMAT="%Y-%m-%d %H:%M:%S"
+TIMEFORMAT = "%Y-%m-%d %H:%M:%S"
-NODEUPDATE_PID_FILE= "/var/run/NodeUpdate.pid"
+NODEUPDATE_PID_FILE = "/var/run/NodeUpdate.pid"
# variables for cron file creation
-TARGET_SCRIPT = '(echo && date && echo && /usr/bin/NodeUpdate.py start) >>/var/log/NodeUpdate.log 2>&1'
+TARGET_SCRIPT = '(echo && date && echo && /usr/bin/NodeUpdate.py start) >> /var/log/NodeUpdate.log 2>&1'
TARGET_DESC = 'Update node RPMs periodically'
TARGET_USER = 'root'
TARGET_SHELL = '/bin/bash'
CRON_FILE = '/etc/cron.d/NodeUpdate.cron'
YUM_PATH = "/usr/bin/yum"
+DNF_PATH = "/usr/bin/dnf"
+HAS_DNF = os.path.exists(DNF_PATH)
RPM_PATH = "/bin/rpm"
REBOOT_FLAG = '/etc/planetlab/update-reboot'
# location of directory containing boot server ssl certs
-SSL_CERT_DIR='/mnt/cdrom/bootme/cacert/'
+SSL_CERT_DIR = '/mnt/cdrom/bootme/cacert/'
# file containing the list of extensions this node has, each
# correspond to a package group in yum repository.
-# this is expected to be updated from the 'extensions tag'
+# this is expected to be updated from the 'extensions tag'
# through the 'extensions.php' nodeconfig script
-EXTENSIONS_FILE='/etc/planetlab/extensions'
+EXTENSIONS_FILE = '/etc/planetlab/extensions'
# file containing a list of rpms that we should attempt to delete
-# before updating everything else. This list is not removed with
+# before updating everything else. This list is not removed with
# 'yum remove', because that could accidently remove dependency rpms
# that were not intended to be deleted.
-DELETE_RPM_LIST_FILE= '/etc/planetlab/delete-rpm-list'
+DELETE_RPM_LIST_FILE = '/etc/planetlab/delete-rpm-list'
# ok, so the logic should be simple, just yum update the world
-# however there are many cases in the real life where this
+# however there are many cases in the real life where this
# just does not work, because of a glitch somewhere
-# so, we force the update of crucial pkgs independently, as
-# the whole group is sometimes too much to swallow
+# so, we force the update of crucial pkgs independently, as
+# the whole group is sometimes too much to swallow
# this one is builtin
-CRUCIAL_PACKAGES_BUILTIN=[ 'NodeUpdate' , 'nodemanager' ]
+CRUCIAL_PACKAGES_BUILTIN = [
+ 'NodeUpdate',
+ 'nodemanager-lib',
+ 'nodemanager-lxc',
+ 'nodemanager-vs',
+]
# and operations can also try to push a list through a conf_file
# should use the second one for consistency, try the first one as well for legacy
-CRUCIAL_PACKAGES_OPTIONAL_PATHS=[
+CRUCIAL_PACKAGES_OPTIONAL_PATHS = [
# this is a legacy name, please avoid using this one
- '/etc/planetlab/NodeUpdate.packages'
+ '/etc/planetlab/NodeUpdate.packages',
# file to use with a hand-written conf_file
- '/etc/planetlab/crucial-rpm-list'
+ '/etc/planetlab/crucial-rpm-list',
# this one could some day be maintained by a predefined config_file
- '/etc/planetlab/sliceimage-rpm-list'
+ '/etc/planetlab/sliceimage-rpm-list',
]
# print out a message only if we are displaying output
-def Message(message):
+
+
+def Message(*messages):
if displayOutput:
- if isinstance(message,StringTypes) and len(message) >=2 and message[0]=="\n":
- print "\n",
- message=message[1:]
- print strftime(TIMEFORMAT),
- print message
+ print(5*'*', strftime(TIMEFORMAT), *messages)
# always print errors
-def Error(Str):
- print strftime(TIMEFORMAT),
- print Str
+def Error(*messages):
+ print(10*'!', strftime(TIMEFORMAT), *messages)
+
+
+class YumDnf:
+ def __init__(self):
+ command = DNF_PATH if HAS_DNF else YUM_PATH
+ self.command = command
+
+ options = ""
+ # --verbose option
+ Message("Checking if {} supports --verbose".format(command))
+ if os.system("{} --help | grep -q verbose".format(command)) == 0:
+ Message("It does, using --verbose option")
+ options += " --verbose"
+ else:
+ Message("Unsupported, not using --verbose option")
+ # --sslcertdir option
+ Message("Checking if {} supports SSL certificate checks"
+ .format(command))
+ if os.system("{} --help | grep -q sslcertdir".format(command)) == 0:
+ Message("It does, using --sslcertdir option")
+ sslcertdir = "--sslcertdir=" + SSL_CERT_DIR
+ else:
+ Message("Unsupported, not using --sslcertdir option")
+ sslcertdir = ""
+ self.options = options
+
+ # one individual package
+ def handle_package(self, package):
+ if not self.is_packaged_installed(package):
+ return self.do_package(package, "install")
+ else:
+ return self.do_package(package, "update")
+
+ def is_packaged_installed(self, package):
+ cmd = "rpm -q {} > /dev/null".format(package)
+ return os.system(cmd) == 0
+
+ def do_package(self, package, subcommand):
+ cmd = \
+ "{} {} -y {} {}".format(self.command, self.options,
+ subcommand, package)
+ Message("Invoking {}".format(cmd))
+ return os.system(cmd) == 0
+
+ # update one group
+ def update_group(self, group):
+ # it is important to invoke dnf group *upgrade* and not *update*
+ # because the semantics of groups has changed within dnf
+ overall = True
+ if HAS_DNF:
+ cmd = "{} {} -y group install {}".format(
+ self.command, self.options, group)
+ Message("Invoking {}".format(cmd))
+ if os.system(cmd) != 0:
+ overall = False
+ cmd = "{} {} -y group upgrade {}".format(
+ self.command, self.options, group)
+ Message("Invoking {}".format(cmd))
+ if os.system(cmd) != 0:
+ overall = False
+ else:
+ cmd = "{} {} -y groupinstall {}".format(
+ self.command, self.options, group)
+ Message("Invoking {}".format(cmd))
+ if os.system(cmd) != 0:
+ overall = False
+ return overall
+
+ # update the whole system
+ def update_system(self):
+ cmd = "{} {} -y update".format(self.command, self.options)
+ Message("Invoking {}".format(cmd))
+ return os.system(cmd) == 0
+
+ def clean_all(self):
+ cmd = "{} clean all".format(self.command)
+ Message("Invoking {}".format(cmd))
+ return os.system(cmd) == 0
+
# create an entry in /etc/cron.d so we run periodically.
# we will be run once a day at a 0-59 minute random offset
# into a 0-23 random hour
+
+
def UpdateCronFile():
try:
-
- randomMinute= Random().randrange( 0, 59, 1 );
- randomHour= Random().randrange( 0, 11, 1 );
-
- f = open( CRON_FILE, 'w' );
- f.write( "# %s\n" % (TARGET_DESC) );
- ### xxx is root aliased to the support mailing list ?
- f.write( "MAILTO=%s\n" % (TARGET_USER) );
- f.write( "SHELL=%s\n" % (TARGET_SHELL) );
- f.write( "%s %s,%s * * * %s %s\n\n" %
- (randomMinute, randomHour, randomHour + 12, TARGET_USER, TARGET_SCRIPT) );
+
+ randomMinute = Random().randrange(0, 59, 1)
+ randomHour = Random().randrange(0, 11, 1)
+
+ f = open(CRON_FILE, 'w')
+ f.write("# {}\n".format(TARGET_DESC))
+ # xxx is root aliased to the support mailing list ?
+ f.write("MAILTO={}\n".format(TARGET_USER))
+ f.write("SHELL={}\n".format(TARGET_SHELL))
+ f.write("{} {},{} * * * {} {}\n\n"
+ .format(randomMinute, randomHour,
+ randomHour + 12, TARGET_USER, TARGET_SCRIPT))
f.close()
-
- print( "Created new cron.d entry." )
+
+ print("Created new cron.d entry.")
except:
- print( "Unable to create cron.d entry." )
+ print("Unable to create cron.d entry.")
# simply remove the cron file we created
def RemoveCronFile():
try:
- os.unlink( CRON_FILE )
- print( "Deleted cron.d entry." )
+ os.unlink(CRON_FILE)
+ print("Deleted cron.d entry.")
except:
- print( "Unable to delete cron.d entry." )
-
+ print("Unable to delete cron.d entry.")
class NodeUpdate:
- def __init__( self, doReboot ):
+ def __init__(self, doReboot):
if self.CheckProxy():
- os.environ['http_proxy']= self.HTTP_PROXY
- os.environ['HTTP_PROXY']= self.HTTP_PROXY
-
- self.doReboot= doReboot
-
-
+ os.environ['http_proxy'] = self.HTTP_PROXY
+ os.environ['HTTP_PROXY'] = self.HTTP_PROXY
+ self.doReboot = doReboot
- def CheckProxy( self ):
- Message( "Checking existence of proxy config file..." )
-
+ def CheckProxy(self):
+ Message("Checking existence of proxy config file...")
if os.access(PROXY_FILE, os.R_OK) and os.path.isfile(PROXY_FILE):
- self.HTTP_PROXY= string.strip(file(PROXY_FILE,'r').readline())
- Message( "Using proxy %s." % self.HTTP_PROXY )
+ self.HTTP_PROXY = string.strip(file(PROXY_FILE, 'r').readline())
+ Message("Using proxy {}".format(self.HTTP_PROXY))
return 1
else:
- Message( "Not using any proxy." )
+ Message("Not using any proxy.")
return 0
+ def InstallKeys(self):
+ Message("Removing any existing GPG signing keys from the RPM database")
+ os.system("{} --allmatches -e gpg-pubkey".format(RPM_PATH))
+ Message("Installing all GPG signing keys in {}".format(RPM_GPG_PATH))
+ os.system("{} --import {}/*".format(RPM_PATH, RPM_GPG_PATH))
- def InstallKeys( self ):
- Message( "\nRemoving any existing GPG signing keys from the RPM database" )
- os.system( "%s --allmatches -e gpg-pubkey" % RPM_PATH )
-
- Message( "\nInstalling all GPG signing keys in %s" % RPM_GPG_PATH )
- os.system( "%s --import %s/*" % (RPM_PATH, RPM_GPG_PATH) )
-
-
- def ClearRebootFlag( self ):
- os.system( "/bin/rm -rf %s" % REBOOT_FLAG )
-
+ def ClearRebootFlag(self):
+ os.system("/bin/rm -rf {}".format(REBOOT_FLAG))
- def CheckForUpdates( self ):
-
- Message( "\nRemoving any existing reboot flags" )
+ def CheckForUpdates(self):
+ Message("Removing any existing reboot flags")
self.ClearRebootFlag()
-
if self.doReboot == 0:
- Message( "\nIgnoring any reboot flags set by RPMs" );
+ Message("Ignoring any reboot flags set by RPMs")
+
+ yum_dnf = YumDnf()
+
+ # this of course is quite suboptimal, but proved to be safer
+ yum_dnf.clean_all()
- Message( "\nChecking if yum supports SSL certificate checks" )
- if os.system( "%s --help | grep -q sslcertdir" % YUM_PATH ) == 0:
- Message( "It does, using --sslcertdir option" )
- sslcertdir = "--sslcertdir=" + SSL_CERT_DIR
- else:
- Message( "Unsupported, not using --sslcertdir option" )
- sslcertdir = ""
-
- yum_options=""
- Message( "\nChecking if yum supports --verbose" )
- if os.system( "%s --help | grep -q verbose" % YUM_PATH ) == 0:
- Message( "It does, using --verbose option" )
- yum_options += " --verbose"
- else:
- Message( "Unsupported, not using --verbose option" )
-
# a configurable list of packages to try and update independently
# cautious..
try:
crucial_packages = []
- for package in CRUCIAL_PACKAGES_BUILTIN: crucial_packages.append(package)
+ for package in CRUCIAL_PACKAGES_BUILTIN:
+ crucial_packages.append(package)
for path in CRUCIAL_PACKAGES_OPTIONAL_PATHS:
- try: crucial_packages += file(CRUCIAL_PACKAGES_OPTIONAL_PATH1).read().split()
- except: pass
+ try:
+ crucial_packages += file(path).read().split()
+ except:
+ pass
+ Message("List of crucial packages: {}".format(crucial_packages))
for package in crucial_packages:
- # if package is not yet installed, like e.g. slice images,
- # need to yum install, not yum update
- if os.system("rpm -q %s > /dev/null"%package)==0:
- Message( "\nUpdating crucial package %s" % package)
- os.system( "%s %s -y update %s" %(YUM_PATH, yum_options, package))
- else:
- Message( "\Installing crucial package %s" % package)
- os.system( "%s %s -y install %s" %(YUM_PATH, yum_options, package))
+ yum_dnf.handle_package(package)
except:
+
pass
- Message( "\nUpdating PlanetLab group" )
- os.system( "%s %s %s -y groupinstall \"PlanetLab\"" %
- (YUM_PATH, yum_options, sslcertdir) )
+ Message("Updating PlanetLab group")
+ yum_dnf.update_group("PlanetLab")
- Message( "\nUpdating rest of system" )
- os.system( "%s %s %s -y update" % (YUM_PATH, yum_options, sslcertdir) )
+ Message("Updating rest of system")
+ yum_dnf.update_system()
- Message( "\nChecking for extra groups (extensions) to update" )
+ Message("Checking for extra groups (extensions) to update")
if os.access(EXTENSIONS_FILE, os.R_OK) and \
os.path.isfile(EXTENSIONS_FILE):
- extensions_contents= file(EXTENSIONS_FILE).read()
- extensions_contents= string.strip(extensions_contents)
+ extensions_contents = file(EXTENSIONS_FILE).read()
+ extensions_contents = string.strip(extensions_contents)
if extensions_contents == "":
- Message( "No extra groups found in file." )
+ Message("No extra groups found in file.")
else:
extensions_contents.strip()
for extension in extensions_contents.split():
- group = "extension%s" % extension
- Message( "\nUpdating %s group" % group )
- os.system( "%s %s %s -y groupinstall \"%s\"" %
- (YUM_PATH, yum_options, sslcertdir, group) )
+ group = "extension{}".format(extension)
+ yum_dnf.update_group(group)
else:
- Message( "No extensions file found" )
-
+ Message("No extensions file found")
+
if os.access(REBOOT_FLAG, os.R_OK) and os.path.isfile(REBOOT_FLAG) and self.doReboot:
- Message( "\nAt least one update requested the system be rebooted" )
+ Message("At least one update requested the system be rebooted")
self.ClearRebootFlag()
- os.system( "/sbin/shutdown -r now" )
-
- def RebuildRPMdb( self ):
- Message( "\nRebuilding RPM Database." )
- try: os.system( "rm /var/lib/rpm/__db.*" )
- except Exception, err: print "RebuildRPMdb: %s" % err
- try: os.system( "%s --rebuilddb" % RPM_PATH )
- except Exception, err: print "RebuildRPMdb: %s" % err
+ os.system("/sbin/shutdown -r now")
- def YumCleanAll ( self ):
- Message ("\nCleaning all yum cache (yum clean all)")
+ def RebuildRPMdb(self):
+ Message("Rebuilding RPM Database.")
try:
- os.system( "yum clean all")
- except:
- pass
-
- def RemoveRPMS( self ):
+ os.system("rm /var/lib/rpm/__db.*")
+ except Exception as err:
+ print("RebuildRPMdb: exception {}".format(err))
+ try:
+ os.system("{} --rebuilddb".format(RPM_PATH))
+ except Exception as err:
+ print("RebuildRPMdb: exception {}".format(err))
- Message( "\nLooking for RPMs to be deleted." )
+ def RemoveRPMS(self):
+ Message("Looking for RPMs to be deleted.")
if os.access(DELETE_RPM_LIST_FILE, os.R_OK) and \
os.path.isfile(DELETE_RPM_LIST_FILE):
- rpm_list_contents= file(DELETE_RPM_LIST_FILE).read().strip()
+ rpm_list_contents = file(DELETE_RPM_LIST_FILE).read().strip()
if rpm_list_contents == "":
- Message( "No RPMs listed in file to delete." )
+ Message("No RPMs listed in file to delete.")
return
- rpm_list= string.split(rpm_list_contents)
-
- Message( "Deleting RPMs from %s: %s" %(DELETE_RPM_LIST_FILE," ".join(rpm_list)))
+ rpm_list = string.split(rpm_list_contents)
+
+ Message("Deleting RPMs from {}: {}".format(
+ DELETE_RPM_LIST_FILE, " ".join(rpm_list)))
# invoke them separately as otherwise one faulty (e.g. already uninstalled)
# would prevent the other ones from uninstalling
for rpm in rpm_list:
# is it installed
- is_installed = os.system ("%s -q %s"%(RPM_PATH,rpm))==0
+ is_installed = os.system("{} -q {}".format(RPM_PATH, rpm)) == 0
if not is_installed:
- Message ("Ignoring rpm %s marked to delete, already uninstalled"%rpm)
+ Message(
+ "Ignoring rpm {} marked to delete, already uninstalled".format(rpm))
continue
- uninstalled = os.system( "%s -ev %s" % (RPM_PATH, rpm) )==0
+ uninstalled = os.system("{} -ev {}".format(RPM_PATH, rpm)) == 0
if uninstalled:
- Message ("Successfully removed RPM %s"%rpm)
+ Message("Successfully removed RPM {}".format(rpm))
continue
else:
- Error( "Unable to delete RPM %s, continuing. rc=%d" % (rpm,uninstalled))
-
- else:
- Message( "No RPMs list file found." )
+ Error("Unable to delete RPM {}, continuing. rc={}".format(
+ rpm, uninstalled))
+ else:
+ Message("No RPMs list file found.")
+##############################
if __name__ == "__main__":
- # if we are invoked with 'start', display the output.
- # this is useful for running something silently
- # under cron and as a service (at startup),
+ # if we are invoked with 'start', display the output.
+ # this is useful for running something silently
+ # under cron and as a service (at startup),
# so the cron only outputs errors and doesn't
# generate mail when it works correctly
- displayOutput= 0
+ displayOutput = 0
# if we hit an rpm that requests a reboot, do it if this is
# set to 1. can be turned off by adding noreboot to command line
# option
-
- doReboot= 1
+
+ doReboot = 1
if "start" in sys.argv or "display" in sys.argv:
- displayOutput= 1
- Message ("\nTurning on messages")
+ displayOutput = 1
+ Message("\nTurning on messages")
if "noreboot" in sys.argv:
- doReboot= 0
+ doReboot = 0
if "updatecron" in sys.argv:
# simply update the /etc/cron.d file for us, and exit
if "removecron" in sys.argv:
RemoveCronFile()
- sys.exit(0)
+ sys.exit(0)
-
# see if we are already running by checking the existance
# of a PID file, and if it exists, attempting a test kill
# to see if the process really does exist. If both of these
# tests pass, exit.
-
+
if os.access(NODEUPDATE_PID_FILE, os.R_OK):
- pid= string.strip(file(NODEUPDATE_PID_FILE).readline())
- if pid <> "":
- if os.system("/bin/kill -0 %s > /dev/null 2>&1" % pid) == 0:
- Message( "It appears we are already running, exiting." )
+ pid = string.strip(file(NODEUPDATE_PID_FILE).readline())
+ if pid != "":
+ if os.system("/bin/kill -0 {} > /dev/null 2>&1".format(pid)) == 0:
+ Message("It appears we are already running, exiting.")
sys.exit(1)
-
+
# write out our process id
- pidfile= file( NODEUPDATE_PID_FILE, 'w' )
- pidfile.write( "%d\n" % os.getpid() )
+ pidfile = file(NODEUPDATE_PID_FILE, 'w')
+ pidfile.write("{}\n".format(os.getpid()))
pidfile.close()
-
- nodeupdate= NodeUpdate(doReboot)
+ nodeupdate = NodeUpdate(doReboot)
if not nodeupdate:
- Error( "Unable to initialize." )
+ Error("Unable to initialize.")
else:
nodeupdate.RebuildRPMdb()
nodeupdate.RemoveRPMS()
nodeupdate.InstallKeys()
- nodeupdate.YumCleanAll()
nodeupdate.CheckForUpdates()
- Message( "\nUpdate complete." )
+ Message("Update complete.")
# remove the PID file
- os.unlink( NODEUPDATE_PID_FILE )
-
+ os.unlink(NODEUPDATE_PID_FILE)
git://git.onelab.eu / nodeupdate.git / blobdiff