tuned_adm: profile validity check and code cleanup
This commit is contained in:
Jan Vcelak
parent
0a746648df
commit
4a4023fc19
1 changed files with 124 additions and 70 deletions
194
tuned_adm.py
194
tuned_adm.py
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@ -16,106 +16,161 @@
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# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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#
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import sys,os,glob
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import sys
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import os
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import os.path
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import glob
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class Tuned_adm:
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def __init__(self):
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self.profile_dir = "/etc/tune-profiles/"
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def __init__(self):
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self.profile_dir = None
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self.active_file = None
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def init(self, profile_dir):
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self.profile_dir = profile_dir
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self.profile_dir = os.path.normpath(profile_dir)
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self.active_file = os.path.join(profile_dir, "active-profile")
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def error(self, msg, exit_code = 1):
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print >>sys.stderr, msg
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sys.exit(exit_code)
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def check_permissions(self):
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if not os.getuid() == 0:
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self.error("Only root can run this script.", 2)
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def run(self, args):
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if args[0] == "list":
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if args[0] == "list":
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self.list()
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elif args[0] == "active":
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self.active()
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elif args[0] == "off":
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if not os.getuid()==0:
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print >>sys.stderr, "Only root can run this script";
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sys.exit(2)
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self.check_permissions()
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self.off()
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elif args[0] == "profile":
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if not os.getuid()==0:
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print >>sys.stderr, "Only root can run this script";
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sys.exit(2)
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self.profile(args[1:])
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if len(args) == 2:
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self.check_permissions()
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self.profile(args[1])
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else:
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self.error("Invalid profile specification. Use 'tuned-adm list' to get all available profiles.")
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else:
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print >>sys.stderr, "Nonexistent argument %s" % args[0]
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return 1
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self.error("Nonexistent argument '%s'." % args[0])
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def list(self):
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if os.path.exists(self.profile_dir):
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modes = os.listdir(self.profile_dir)
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if len(modes) > 0:
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print "Modes: "
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for i in range(len(modes)):
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if modes[i] != "active-profile":
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print modes[i]
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else:
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print "No profiles defined."
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self.active()
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active = self.get_active()
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modes = os.listdir(self.profile_dir)
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if len(modes) > 0:
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print "Available profiles: "
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for mode in modes:
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dir = os.path.join(self.profile_dir, mode)
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if not os.path.isdir(dir):
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continue
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def active(self):
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profile = open(self.profile_dir+"/active-profile", "r").read()
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print "Current active profile: %s" % profile
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if mode == active:
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print "- %s (active)" % mode
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else:
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print "- %s" % mode
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else:
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print "No profiles defined."
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def get_active(self):
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print self.active_file
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file = open(self.active_file, "r")
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profile = file.read()
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file.close()
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return profile
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def set_active(self, profile):
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file = open(self.active_file, "w")
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file.write(profile)
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file.close()
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def verify_profile(self, profile):
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path = os.path.abspath(os.path.join(self.profile_dir, profile))
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if not path.startswith("%s/" % self.profile_dir):
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return False
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if not os.path.isdir(path):
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return False
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return True
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def remove(self, wildcard, filter = None):
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if filter == None:
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filter = lambda file: True
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files = glob.glob(wildcard)
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for f in files:
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if filter(f):
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os.unlink(f)
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def off(self):
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open(self.profile_dir+"/active-profile", "w").write("off")
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os.system("rm -rf /etc/ktune.d/*.conf")
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os.system("rm -rf /etc/ktune.d/*.sh")
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self.set_active("off")
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# remove profile settings
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self.remove("/etc/ktune.d/*.conf", os.path.islink)
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self.remove("/etc/ktune.d/*.sh", os.path.islink)
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# restore previous ktune settings (if present)
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if os.path.exists("/etc/sysconfig/ktune.bckp"):
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os.rename("/etc/sysconfig/ktune.bckp", "/etc/sysconfig/ktune")
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if os.path.exists("/etc/tuned.conf.bckp") and os.path.exists("/etc/tuned.conf"):
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os.rename("/etc/tuned.conf.bckp", "/etc/tuned.conf")
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# disable services
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os.system('service ktune stop')
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os.system('service tuned stop')
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os.system('chkconfig --del ktune')
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os.system('chkconfig --del tuned')
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def profile(self, args):
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def profile(self, profile):
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enablektune = False
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enabletuned = False
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if len(args) == 0:
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print "No profile given. To list all available profiles please run:"
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print "tuned-adm list"
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return
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if not os.path.exists(self.profile_dir+"/"+args[0]):
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print "No profile with name %s found." % args[0]
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return
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if os.path.exists(self.profile_dir):
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os.system('service ktune stop')
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os.system('chkconfig --add ktune && chkconfig --level 345 ktune off')
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os.system('service tuned stop')
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os.system('chkconfig --add tuned && chkconfig --level 345 tuned off')
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modes = os.listdir(self.profile_dir)
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if modes > 0:
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print 'Switching to profile %s' % args[0]
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open(self.profile_dir+"/active-profile", "w").write(args[0])
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if os.path.exists('/etc/ktune.d/tunedadm.sh'):
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os.remove('/etc/ktune.d/tunedadm.sh')
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if os.path.exists('/etc/ktune.d/tunedadm.conf'):
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os.remove('/etc/ktune.d/tunedadm.conf')
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file = ('%s/%s/ktune.sysconfig' % (self.profile_dir, args[0]))
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if os.path.exists(file):
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enablektune = True
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os.rename('/etc/sysconfig/ktune', '/etc/sysconfig/ktune.bckp')
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os.symlink(file, '/etc/sysconfig/ktune')
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file = ('%s/%s/ktune.sh' % (self.profile_dir, args[0]))
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if os.path.exists(file):
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os.symlink(file, '/etc/ktune.d/tunedadm.sh')
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file = ('%s/%s/sysctl.ktune' % (self.profile_dir, args[0]))
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if os.path.exists(file):
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os.symlink(file, '/etc/ktune.d/tunedadm.conf')
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file = ('%s/%s/tuned.conf' % (self.profile_dir, args[0]))
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if os.path.exists(file):
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enabletuned = True
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os.rename('/etc/tuned.conf', '/etc/tuned.conf.bckp')
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os.symlink(file, '/etc/tuned.conf')
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if not self.verify_profile(profile):
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self.error("Invalid profile. Use 'tuned-adm list' to get all available profiles.")
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profile_root = os.path.join(self.profile_dir, profile)
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# disabling services
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os.system('service ktune stop')
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os.system('service tuned stop')
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os.system('chkconfig --add ktune && chkconfig --level 345 ktune off')
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os.system('chkconfig --add tuned && chkconfig --level 345 tuned off')
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print >>sys.stderr, "Switching to profile '%s'" % profile
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self.set_active(profile)
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# ktune settings
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self.remove('/etc/ktune.d/tunedadm.sh')
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self.remove('/etc/ktune.d/tunedadm.conf')
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file = os.path.join(profile_root, "ktune.sysconfig")
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if os.path.isfile(file):
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enablektune = True
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os.rename('/etc/sysconfig/ktune', '/etc/sysconfig/ktune.bckp')
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os.symlink(file, '/etc/sysconfig/ktune')
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file = os.path.join(profile_root, 'ktune.sh')
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if os.path.isfile(file):
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os.symlink(file, '/etc/ktune.d/tunedadm.sh')
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file = os.path.join(profile_root, 'sysctl.ktune')
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if os.path.isfile(file):
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os.symlink(file, '/etc/ktune.d/tunedadm.conf')
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# tuned settings
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file = os.path.join(profile_root, 'tuned.conf')
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if os.path.isfile(file):
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enabletuned = True
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os.rename('/etc/tuned.conf', '/etc/tuned.conf.bckp')
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os.symlink(file, '/etc/tuned.conf')
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# enabling services
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if enablektune:
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os.system('service ktune start')
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@ -125,5 +180,4 @@ class Tuned_adm:
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os.system('service tuned start')
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os.system('chkconfig --add tuned && chkconfig --level 345 tuned on')
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tuned_adm = Tuned_adm()
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