def configure(name, rec):
"""Write <rec['keys']> to my authorized_keys file."""
logger.verbose('create_lxc: configuring %s'%name)
#new_keys = rec['keys']
# get the unix account info
gid = grp.getgrnam("slices")[2]
pw_info = pwd.getpwnam(name)
uid = pw_info[2]
pw_dir = pw_info[5]
# write out authorized_keys file and conditionally create
# the .ssh subdir if need be.
dot_ssh = os.path.join(pw_dir,'.ssh')
if not os.path.isdir(dot_ssh):
if not os.path.isdir(pw_dir):
logger.verbose('create_lxc: WARNING: homedir %s does not exist for %s!'%(pw_dir,name))
os.mkdir(pw_dir)
os.chown(pw_dir, uid, gid)
os.mkdir(dot_ssh)
auth_keys = os.path.join(dot_ssh,'authorized_keys')
for new_keys in rec['keys']:
tools.write_file(auth_keys, lambda f: f.write(new_keys['key']))
# set access permissions and ownership properly
os.chmod(dot_ssh, 0700)
os.chown(dot_ssh, uid, gid)
os.chmod(auth_keys, 0600)
os.chown(auth_keys, uid, gid)
logger.log('create_lxc: %s: installed ssh keys' % name)
def retrieve(url, cacert=None, postdata=None, timeout=90):
# command = ('/usr/bin/curl', '--fail', '--silent')
command = (
'/usr/bin/curl',
'--fail',
)
if cacert: command += ('--cacert', cacert)
if postdata: command += ('--data', '@-')
if timeout:
command += ('--max-time', str(timeout))
command += ('--connect-timeout', str(timeout))
command += (url, )
if verbose:
print 'Invoking ', command
if postdata: print 'with postdata=', postdata
p = Sopen(command, stdin=PIPE, stdout=PIPE, stderr=PIPE, close_fds=True)
if postdata: p.stdin.write(postdata)
p.stdin.close()
sout, sin, serr = select([p.stdout, p.stderr], [], [], timeout)
if len(sout) == 0 and len(sin) == 0 and len(serr) == 0:
logger.verbose("curlwrapper: timed out after %s" % timeout)
p.kill(signal.SIGKILL)
data = p.stdout.read()
err = p.stderr.read()
rc = p.wait()
if rc != 0:
# when this triggers, the error sometimes doesn't get printed
logger.log("curlwrapper: retrieve, got stderr <%s>" % err)
raise xmlrpclib.ProtocolError(url, rc, err, postdata)
else:
return data
def retrieve(url, cacert=None, postdata=None, timeout=90):
# command = ('/usr/bin/curl', '--fail', '--silent')
command = ('/usr/bin/curl', '--fail', )
if cacert: command += ('--cacert', cacert)
if postdata: command += ('--data', '@-')
if timeout:
command += ('--max-time', str(timeout))
command += ('--connect-timeout', str(timeout))
command += (url,)
if verbose:
print 'Invoking ',command
if postdata: print 'with postdata=',postdata
p = Sopen(command , stdin=PIPE, stdout=PIPE, stderr=PIPE, close_fds=True)
if postdata: p.stdin.write(postdata)
p.stdin.close()
sout, sin, serr = select([p.stdout,p.stderr],[],[], timeout)
if len(sout) == 0 and len(sin) == 0 and len(serr) == 0:
logger.verbose("curlwrapper: timed out after %s" % timeout)
p.kill(signal.SIGKILL)
data = p.stdout.read()
err = p.stderr.read()
rc = p.wait()
if rc != 0:
# when this triggers, the error sometimes doesn't get printed
logger.log ("curlwrapper: retrieve, got stderr <%s>"%err)
raise xmlrpclib.ProtocolError(url, rc, err, postdata)
else:
return data
def run(self):
try:
if self.options.daemon: tools.daemon()
# set log level
if (self.options.verbose):
logger.set_level(logger.LOG_VERBOSE)
# Load /etc/planetlab/plc_config
config = Config(self.options.config)
try:
other_pid = tools.pid_file()
if other_pid != None:
print """There might be another instance of the node manager running as pid %d.
If this is not the case, please remove the pid file %s. -- exiting""" % (other_pid, tools.PID_FILE)
return
except OSError, err:
print "Warning while writing PID file:", err
# load modules
self.loaded_modules = []
for module in self.modules:
try:
m = __import__(module)
logger.verbose("nodemanager: triggering %s.start"%m.__name__)
m.start()
self.loaded_modules.append(m)
except ImportError, err:
print "Warning while loading module %s:" % module, err
def is_running(self):
''' Return True if the domain is running '''
(state, _) = self.dom.state()
result = (state == libvirt.VIR_DOMAIN_RUNNING)
logger.verbose('sliver_libvirt.is_running: {} => {}'
.format(self, result))
return result
def is_running(self):
if (self._acct != None) and self._acct.is_running():
status = True
else:
status = False
logger.verbose("account: Worker(%s): is not running" % self.name)
return status
def configure(name, rec):
"""Write <rec['keys']> to my authorized_keys file."""
logger.verbose('create_lxc: configuring %s' % name)
#new_keys = rec['keys']
# get the unix account info
gid = grp.getgrnam("slices")[2]
pw_info = pwd.getpwnam(name)
uid = pw_info[2]
pw_dir = pw_info[5]
# write out authorized_keys file and conditionally create
# the .ssh subdir if need be.
dot_ssh = os.path.join(pw_dir, '.ssh')
if not os.path.isdir(dot_ssh):
if not os.path.isdir(pw_dir):
logger.verbose(
'create_lxc: WARNING: homedir %s does not exist for %s!' %
(pw_dir, name))
os.mkdir(pw_dir)
os.chown(pw_dir, uid, gid)
os.mkdir(dot_ssh)
auth_keys = os.path.join(dot_ssh, 'authorized_keys')
for new_keys in rec['keys']:
tools.write_file(auth_keys, lambda f: f.write(new_keys['key']))
# set access permissions and ownership properly
os.chmod(dot_ssh, 0700)
os.chown(dot_ssh, uid, gid)
os.chmod(auth_keys, 0600)
os.chown(auth_keys, uid, gid)
logger.log('create_lxc: %s: installed ssh keys' % name)
def GetSlivers(self, config, plc):
"""Retrieves GetSlivers at PLC and triggers callbacks defined in modules/plugins"""
try:
logger.log("nodemanager: Syncing w/ PLC")
# retrieve GetSlivers from PLC
data = plc.GetSlivers()
# use the magic 'default' slice to retrieve system-wide defaults
self.getPLCDefaults(data, config)
# tweak the 'vref' attribute from GetSliceFamily
self.setSliversVref (data)
# dump it too, so it can be retrieved later in case of comm. failure
self.dumpSlivers(data)
# log it for debug purposes, no matter what verbose is
logger.log_slivers(data)
logger.verbose("nodemanager: Sync w/ PLC done")
last_data=data
except:
logger.log_exc("nodemanager: failed in GetSlivers")
# XXX So some modules can at least boostrap.
logger.log("nodemanager: Can't contact PLC to GetSlivers(). Continuing.")
data = {}
# for modules that request it though the 'persistent_data' property
last_data=self.loadSlivers()
# Invoke GetSlivers() functions from the callback modules
for module in self.loaded_modules:
logger.verbose('nodemanager: triggering %s.GetSlivers'%module.__name__)
try:
callback = getattr(module, 'GetSlivers')
module_data=data
if getattr(module,'persistent_data',False):
module_data=last_data
callback(data, config, plc)
except:
logger.log_exc("nodemanager: GetSlivers failed to run callback for module %r"%module)
def update_conf_file(self, cf_rec):
if not cf_rec['enabled']: return
dest = cf_rec['dest']
err_cmd = cf_rec['error_cmd']
mode = string.atoi(cf_rec['file_permissions'], base=8)
try:
uid = pwd.getpwnam(cf_rec['file_owner'])[2]
except:
logger.log('conf_files: cannot find user %s -- %s not updated'%(cf_rec['file_owner'],dest))
return
try:
gid = grp.getgrnam(cf_rec['file_group'])[2]
except:
logger.log('conf_files: cannot find group %s -- %s not updated'%(cf_rec['file_group'],dest))
return
url = 'https://%s/%s' % (self.config.PLC_BOOT_HOST, cf_rec['source'])
# set node_id at the end of the request - hacky
if tools.node_id():
if url.find('?') >0: url += '&'
else: url += '?'
url += "node_id=%d"%tools.node_id()
else:
logger.log('conf_files: %s -- WARNING, cannot add node_id to request'%dest)
try:
logger.verbose("conf_files: retrieving URL=%s"%url)
contents = curlwrapper.retrieve(url, self.config.cacert)
except xmlrpclib.ProtocolError,e:
logger.log('conf_files: failed to retrieve %s from %s, skipping' % (dest, url))
return
def replace_file_with_string(target,
new_contents,
chmod=None,
remove_if_empty=False):
try:
current = file(target).read()
except:
current = ""
if current == new_contents:
# if turns out to be an empty string, and remove_if_empty is set,
# then make sure to trash the file if it exists
if remove_if_empty and not new_contents and os.path.isfile(target):
logger.verbose("tools.replace_file_with_string: removing file %s" %
target)
try:
os.unlink(target)
finally:
return True
return False
# overwrite target file: create a temp in the same directory
path = os.path.dirname(target) or '.'
fd, name = tempfile.mkstemp('', 'repl', path)
os.write(fd, new_contents)
os.close(fd)
if os.path.exists(target):
os.unlink(target)
shutil.move(name, target)
if chmod: os.chmod(target, chmod)
return True
def GetSlivers(data, config, plc):
# added by caglar
# band-aid for short period as old API returns networks instead of interfaces
global KEY_NAME
KEY_NAME = "interfaces"
#################
logger.verbose("net: GetSlivers called.")
if not 'interfaces' in data:
# added by caglar
# band-aid for short period as old API returns networks instead of interfaces
# logger.log_missing_data('net.GetSlivers','interfaces')
# return
if not 'networks' in data:
logger.log_missing_data('net.GetSlivers','interfaces')
return
else:
KEY_NAME = "networks"
##################
plnet.InitInterfaces(logger, plc, data)
if 'OVERRIDES' in dir(config):
if config.OVERRIDES.get('net_max_rate') == '-1':
logger.log("net: Slice and node BW Limits disabled.")
if len(bwlimit.tc("class show dev %s" % dev_default)):
logger.verbose("net: *** DISABLING NODE BW LIMITS ***")
bwlimit.stop()
else:
InitNodeLimit(data)
InitI2(plc, data)
else:
InitNodeLimit(data)
InitI2(plc, data)
InitNAT(plc, data)
def GetSlivers(data, config, plc):
# added by caglar
# band-aid for short period as old API returns networks instead of interfaces
global KEY_NAME
KEY_NAME = "interfaces"
#################
logger.verbose("net: GetSlivers called.")
if not 'interfaces' in data:
# added by caglar
# band-aid for short period as old API returns networks instead of interfaces
# logger.log_missing_data('net.GetSlivers','interfaces')
# return
if not 'networks' in data:
logger.log_missing_data('net.GetSlivers','interfaces')
return
else:
KEY_NAME = "networks"
##################
plnet.InitInterfaces(logger, plc, data)
if 'OVERRIDES' in dir(config):
if config.OVERRIDES.get('net_max_rate') == '-1':
logger.log("net: Slice and node BW Limits disabled.")
if len(bwlimit.tc("class show dev %s" % dev_default)):
logger.verbose("net: *** DISABLING NODE BW LIMITS ***")
bwlimit.stop()
else:
InitNodeLimit(data)
InitI2(plc, data)
else:
InitNodeLimit(data)
InitI2(plc, data)
InitNAT(plc, data)
def process_IN_DELETE(self, event):
try:
del CGROUPS[event.name]
except:
logger.verbose("Cgroup Notify: Cgroup %s does not exist, continuing..."%event.name)
logger.verbose("Cgroup Notify: Deleted cgroup %s on %s" % \
(event.name, event.path))
def configure(self, rec):
"""Write <rec['keys']> to my authorized_keys file."""
logger.verbose('account: configuring %s'%self.name)
new_keys = rec['keys']
if new_keys != self.keys:
# get the unix account info
gid = grp.getgrnam("slices")[2]
pw_info = pwd.getpwnam(self.name)
uid = pw_info[2]
pw_dir = pw_info[5]
# write out authorized_keys file and conditionally create
# the .ssh subdir if need be.
dot_ssh = os.path.join(pw_dir,'.ssh')
if not os.path.isdir(dot_ssh):
if not os.path.isdir(pw_dir):
logger.verbose('account: WARNING: homedir %s does not exist for %s!'%(pw_dir,self.name))
os.mkdir(pw_dir)
os.chown(pw_dir, uid, gid)
os.mkdir(dot_ssh)
auth_keys = os.path.join(dot_ssh,'authorized_keys')
tools.write_file(auth_keys, lambda f: f.write(new_keys))
# set access permissions and ownership properly
os.chmod(dot_ssh, 0700)
os.chown(dot_ssh, uid, gid)
os.chmod(auth_keys, 0600)
os.chown(auth_keys, uid, gid)
# set self.keys to new_keys only when all of the above ops succeed
self.keys = new_keys
logger.log('account: %s: installed ssh keys' % self.name)
def is_running(self):
if (self._acct != None) and self._acct.is_running():
status = True
else:
status = False
logger.verbose("account: Worker(%s): is not running" % self.name)
return status
def ensure_created(self, rec):
"""Check account type is still valid. If not, recreate sliver.
If still valid, check if running and configure/start if not."""
logger.log_data_in_file(rec,"/var/lib/nodemanager/%s.rec.txt"%rec['name'],
'raw rec captured in ensure_created',logger.LOG_VERBOSE)
curr_class = self._get_class()
next_class = type_acct_class[rec['type']]
if next_class != curr_class:
self._destroy(curr_class)
create_sem.acquire()
try: next_class.create(self.name, rec)
finally: create_sem.release()
if not isinstance(self._acct, next_class): self._acct = next_class(rec)
logger.verbose("account.Worker.ensure_created: %s, running=%r"%(self.name,self.is_running()))
# reservation_alive is set on reservable nodes, and its value is a boolean
if 'reservation_alive' in rec:
# reservable nodes
if rec['reservation_alive']:
# this sliver has the lease, it is safe to start it
if not self.is_running(): self.start(rec)
else: self.configure(rec)
else:
# not having the lease, do not start it
self.configure(rec)
# usual nodes - preserve old code
# xxx it's not clear what to do when a sliver changes type/class
# in a reservable node
else:
if not self.is_running() or next_class != curr_class:
self.start(rec)
else: self.configure(rec)
def write(perfDataList, timestamp, whitelistDict=None):
'''
main formatter function: returns a string of formatted entries
'''
unixTime = str(time.mktime(timestamp)).replace(".", "") + "00"
l.debug("influxFormatter.write: timestamp:'%s' , unixTime: '%s'",
str(timestamp), unixTime)
entries = []
for perfEntry in perfDataList:
if (whitelistedJ2eeType(perfEntry, whitelistDict) == True):
l.debug("Writing output record as j2eeType is whitelisted")
formattedEntry = "{},{} {} {}".format(
getMeasurement(perfEntry), formatTags(perfEntry),
formatFields(perfEntry, whitelistDict), unixTime)
entries.append(formattedEntry)
l.debug("Influx formattedEntry: '%s" % (formattedEntry))
else:
l.debug(
"Output record not written as j2eeType: '%s' is not whitelisted"
% (perfEntry["tags"]))
l.verbose("Number of rows returned: %d" % (len(entries)))
returnedObj = "\n".join(entries)
return returnedObj
def check_if_test_exists(test_file_path: str):
logger.verbose(
f"{CombinationValidator.__name__}: Checking the existence of test: '"
f"{CombinationValidator.UNIT_TEST_NAME}'.")
return CombinationValidator.trigger_test_output_test(
test_file_path, check_for_existence=True) not in [
ExitCode.NO_TESTS_COLLECTED, ExitCode.USAGE_ERROR
]
def process_IN_DELETE(self, event):
try:
del CGROUPS[event.name]
except:
logger.verbose(
"Cgroup Notify: Cgroup %s does not exist, continuing..." %
event.name)
logger.verbose("Cgroup Notify: Deleted cgroup %s on %s" % \
(event.name, event.path))
def __init__ (self):
parser = ArgumentParser()
parser.add_argument(
'-d', '--daemon', action='store_true', dest='daemon',
default=False,
help='run daemonized')
parser.add_argument(
'-f', '--config', action='store', dest='config',
default='/etc/planetlab/plc_config',
help='PLC configuration file')
parser.add_argument(
'-k', '--session', action='store', dest='session',
default='/etc/planetlab/session',
help='API session key (or file)')
parser.add_argument(
'-p', '--period', action='store', dest='period',
default=NodeManager.default_period,
help='Polling interval (sec) - default {}'
.format(NodeManager.default_period))
parser.add_argument(
'-r', '--random', action='store', dest='random',
default=NodeManager.default_random,
help='Range for additional random polling interval (sec) -- default {}'
.format(NodeManager.default_random))
parser.add_argument(
'-v', '--verbose', action='store_true', dest='verbose',
default=False,
help='more verbose log')
parser.add_argument(
'-P', '--path', action='store', dest='path',
default=NodeManager.PLUGIN_PATH,
help='Path to plugins directory')
parser.add_argument(
'-m', '--module', action='store', dest='user_module',
default='',
help='run a single module')
self.options = parser.parse_args()
# determine the modules to be run
self.modules = NodeManager.core_modules
# Deal with plugins directory
if os.path.exists(self.options.path):
sys.path.append(self.options.path)
plugins = [
os.path.split(os.path.splitext(x)[0])[1]
for x in glob.glob( os.path.join(self.options.path, '*.py') )
if not x.endswith("/__init__.py")
]
self.modules += plugins
if self.options.user_module:
assert self.options.user_module in self.modules
self.modules = [self.options.user_module]
logger.verbose('nodemanager: Running single module {}'.format(self.options.user_module))
def stop(self):
logger.verbose('sliver_libvirt: {} stop'.format(self.name))
# Remove the ebtables rule before stopping
bwlimit.ebtables("-D INPUT -i veth{} -j mark --set-mark {}"
.format(self.xid, self.xid))
try:
self.dom.destroy()
except:
logger.log_exc("in sliver_libvirt.stop", name=self.name)
def start(self, delay=0):
'''Just start the sliver'''
logger.verbose('sliver_libvirt: {} start'.format(self.name))
# TD: Added OpenFlow rules to avoid OpenVSwitch-based slivers'
# auto-configuration issues when IPv6 auto-config and/or DHCP are
# available in the node's network. Sliver configuration is static.
if os.path.exists('/usr/bin/ovs-ofctl'):
logger.log('Adding OpenFlow rules to prevent IPv6 auto-config and DHCP in OpenVSwitch slivers')
# IPv6 ICMP Router Solicitation and Advertisement
logger.log_call([ '/usr/bin/ovs-ofctl', 'add-flow', 'public0', 'priority=100,icmp6,icmp_type=133,idle_timeout=0,hard_timeout=0,actions=drop' ])
logger.log_call([ '/usr/bin/ovs-ofctl', 'add-flow', 'public0', 'priority=100,icmp6,icmp_type=134,idle_timeout=0,hard_timeout=0,actions=drop' ])
# IPv4 DHCP
logger.log_call([ '/usr/bin/ovs-ofctl', 'add-flow', 'public0', 'priority=101,udp,nw_src=0.0.0.0,nw_dst=255.255.255.255,tp_src=68,tp_dst=67,idle_timeout=0,hard_timeout=0,actions=drop' ])
logger.log_call([ '/usr/bin/ovs-ofctl', 'add-flow', 'public0', 'priority=101,udp,tp_src=67,tp_dst=68,idle_timeout=0,hard_timeout=0,actions=drop' ])
else:
logger.log('NOTE: /usr/bin/ovs-ofctl not found!')
# Check if it's running to avoid throwing an exception if the
# domain was already running
if not self.is_running():
try:
# create actually means start
self.dom.create()
except Exception as e:
# XXX smbaker: attempt to resolve slivers that are stuck in
# "failed to allocate free veth".
if "ailed to allocate free veth" in str(e):
logger.log("failed to allocate free veth on {}".format(self.name))
self.repair_veth()
logger.log("trying dom.create again")
self.dom.create()
else:
raise
else:
logger.verbose('sliver_libvirt: sliver {} already started'.format(self.name))
# After the VM is started... we can play with the virtual interface
# Create the ebtables rule to mark the packets going out from the virtual
# interface to the actual device so the filter canmatch against the mark
bwlimit.ebtables("-A INPUT -i veth{} -j mark --set-mark {}"
.format(self.xid, self.xid))
# TD: Turn off SCTP checksum offloading. It is currently not working. FIXME: check for a kernel fix!
result = logger.log_call(['/usr/sbin/lxcsu', '-r', self.name, '--', '/usr/sbin/ethtool', '-K', 'eth0', 'tx-checksum-sctp', 'off'])
if not result:
logger.log('unable to apply SCTP checksum bug work-around for %s' % self.name)
# TD: Work-around for missing interface configuration: ensure that networking service is running.
result = logger.log_call(['/usr/sbin/lxcsu', '-r', self.name, '/sbin/service', 'network', 'restart'])
if not result:
logger.log('unable to restart networking service for %s' % self.name)
def create(name, rec = None):
logger.verbose('sliver_vs: %s: create'%name)
vref = rec['vref']
if vref is None:
logger.log("sliver_vs: %s: ERROR - no vref attached, this is unexpected"%(name))
# added by caglar
# band-aid for short period as old API doesn't have GetSliceFamily function
#return
vref = "planetlab-f8-i386"
# used to look in /etc/planetlab/family,
# now relies on the 'GetSliceFamily' extra attribute in GetSlivers()
# which for legacy is still exposed here as the 'vref' key
# check the template exists -- there's probably a better way..
if not os.path.isdir ("/vservers/.vref/%s"%vref):
logger.log ("sliver_vs: %s: ERROR Could not create sliver - vreference image %s not found"%(name,vref))
return
# guess arch
try:
(x,y,arch)=vref.split('-')
# mh, this of course applies when 'vref' is e.g. 'netflow'
# and that's not quite right
except:
arch='i386'
def personality (arch):
personality="linux32"
if arch.find("64")>=0:
personality="linux64"
return personality
command=[]
# be verbose
command += ['/bin/bash','-x',]
command += ['/usr/sbin/vuseradd', ]
if 'attributes' in rec and 'isolate_loopback' in rec['attributes'] and rec['attributes']['isolate_loopback'] == '1':
command += [ "-i",]
# the vsliver imge to use
command += [ '-t', vref, ]
# slice name
command += [ name, ]
# logger.log_call(['/usr/sbin/vuseradd', '-t', vref, name, ], timeout=15*60)
logger.log_call(command, timeout=15*60)
# export slicename to the slice in /etc/slicename
file('/vservers/%s/etc/slicename' % name, 'w').write(name)
file('/vservers/%s/etc/slicefamily' % name, 'w').write(vref)
# set personality: only if needed (if arch's differ)
if tools.root_context_arch() != arch:
file('/etc/vservers/%s/personality' % name, 'w').write(personality(arch)+"\n")
logger.log('sliver_vs: %s: set personality to %s'%(name,personality(arch)))
def run_subprocess(command: list or str, cwd: str = os.curdir):
if isinstance(command, list):
command = " ".join(command)
logger.verbose(f'Running {command} command')
pipes = subprocess.Popen(command, stdout=subprocess.PIPE, stderr=subprocess.PIPE, cwd=cwd, shell=True,
env=os.environ, universal_newlines=True)
std_out, std_err = pipes.communicate()
return_code = pipes.returncode
pipes.kill()
del pipes
if return_code != 0:
raise subprocess.CalledProcessError(cmd=command, output=std_out, stderr=std_err, returncode=return_code)
return std_out, std_err, return_code
def destroy(name):
# umount .ssh directory - only if mounted
Account.umount_ssh_dir(name)
logger.verbose('sliver_lxc: %s destroy' % (name))
conn = Sliver_Libvirt.getConnection(Sliver_LXC.TYPE)
containerDir = Sliver_LXC.CON_BASE_DIR + '/%s' % (name)
try:
# Destroy libvirt domain
dom = conn.lookupByName(name)
except:
logger.verbose('sliver_lxc: Domain %s does not exist!' % name)
try:
dom.destroy()
except:
logger.verbose('sliver_lxc: Domain %s not running... continuing.' %
name)
try:
dom.undefine()
except:
logger.verbose(
'sliver_lxc: Domain %s is not defined... continuing.' % name)
# Remove user after destroy domain to force logout
command = ['/usr/sbin/userdel', '-f', '-r', name]
logger.log_call(command, timeout=15 * 60)
if os.path.exists(os.path.join(containerDir, "vsys")):
# Slivers with vsys running will fail the subvolume delete.
# A more permanent solution may be to ensure that the vsys module
# is called before the sliver is destroyed.
logger.log("destroying vsys directory and restarting vsys")
logger.log_call(["rm", "-fR", os.path.join(containerDir, "vsys")])
logger.log_call([
"/etc/init.d/vsys",
"restart",
])
# Remove rootfs of destroyed domain
command = ['btrfs', 'subvolume', 'delete', containerDir]
logger.log_call(command, timeout=60)
if os.path.exists(containerDir):
# oh no, it's still here...
logger.log("WARNING: failed to destroy container %s" %
containerDir)
logger.verbose('sliver_libvirt: %s destroyed.' % name)
def stop(self):
logger.verbose('sliver_libvirt: %s stop'%(self.name))
# Remove the ebtables rule before stopping
bwlimit.ebtables("-D INPUT -i veth%d -j mark --set-mark %d" % \
(self.xid, self.xid))
try:
self.dom.destroy()
except:
logger.verbose('sliver_libvirt: Domain %s not running ' \
'UNEXPECTED: %s'%(self.name, sys.exc_info()[1]))
print 'sliver_libvirt: Domain %s not running ' \
'UNEXPECTED: %s'%(self.name, sys.exc_info()[1])
def update_conf_file(self, cf_rec):
if not cf_rec['enabled']:
return
dest = cf_rec['dest']
err_cmd = cf_rec['error_cmd']
mode = int(cf_rec['file_permissions'], base=8)
try:
uid = pwd.getpwnam(cf_rec['file_owner'])[2]
except:
logger.log('conf_files: cannot find user %s -- %s not updated'
%(cf_rec['file_owner'], dest))
return
try:
gid = grp.getgrnam(cf_rec['file_group'])[2]
except:
logger.log('conf_files: cannot find group %s -- %s not updated'
%(cf_rec['file_group'], dest))
return
url = 'https://%s/%s' % (self.config.PLC_BOOT_HOST, cf_rec['source'])
# set node_id at the end of the request - hacky
if tools.node_id():
if url.find('?') > 0:
url += '&'
else:
url += '?'
url += "node_id=%d"%tools.node_id()
else:
logger.log('conf_files: %s -- WARNING, cannot add node_id to request'
% dest)
try:
logger.verbose("conf_files: retrieving URL=%s"%url)
contents = curlwrapper.retrieve(url, self.config.cacert)
except xmlrpc.client.ProtocolError as e:
logger.log('conf_files: failed to retrieve %s from %s, skipping' % (dest, url))
return
if not cf_rec['always_update'] and sha(contents).digest() == self.checksum(dest):
return
if self.system(cf_rec['preinstall_cmd']):
self.system(err_cmd)
if not cf_rec['ignore_cmd_errors']:
return
logger.log('conf_files: installing file %s from %s' % (dest, url))
try:
os.makedirs(os.path.dirname(dest))
except OSError:
pass
tools.write_file(dest, lambda f: f.write(contents.decode()),
mode=mode, uidgid=(uid, gid))
if self.system(cf_rec['postinstall_cmd']):
self.system(err_cmd)
def __init__(self, rec):
name=rec['name']
logger.verbose ('sliver_vs: %s init'%name)
try:
logger.log("sliver_vs: %s: first chance..."%name)
vserver.VServer.__init__(self, name,logfile='/var/log/nodemanager')
except Exception, err:
if not isinstance(err, vserver.NoSuchVServer):
# Probably a bad vserver or vserver configuration file
logger.log_exc("sliver_vs:__init__ (first chance) %s",name=name)
logger.log('sliver_vs: %s: recreating bad vserver' % name)
self.destroy(name)
self.create(name, rec)
logger.log("sliver_vs: %s: second chance..."%name)
vserver.VServer.__init__(self, name,logfile='/var/log/nodemanager')
def run(self):
# make sure to create /etc/planetlab/virt so others can read that
# used e.g. in vsys-scripts's sliceip
tools.get_node_virt()
try:
if self.options.daemon: tools.daemon()
# set log level
if (self.options.verbose):
logger.set_level(logger.LOG_VERBOSE)
# Load /etc/planetlab/plc_config
config = Config(self.options.config)
try:
other_pid = tools.pid_file()
if other_pid != None:
print """There might be another instance of the node manager running as pid %d.
If this is not the case, please remove the pid file %s. -- exiting""" % (
other_pid, tools.PID_FILE)
return
except OSError, err:
print "Warning while writing PID file:", err
# load modules
self.loaded_modules = []
for module in self.modules:
try:
m = __import__(module)
logger.verbose("nodemanager: triggering %s.start" %
m.__name__)
m.start()
self.loaded_modules.append(m)
except ImportError, err:
logger.log_exc(
"ERROR while loading module %s - skipping:" % module)
# if we fail to load any of these, it's really no need to go on any further
if module in NodeManager.core_modules:
logger.log("FATAL : failed to load core module %s" %
module)
except AttributeError, err:
# triggered when module doesn't have a 'start' method
logger.log_exc(
"ERROR while starting module %s - skipping:" % module)
# if we fail to load any of these, it's really no need to go on any further
if module in NodeManager.core_modules:
logger.log("FATAL : failed to start core module %s" %
module)
def getPLCDefaults(self, data, config):
"""
Get PLC wide defaults from _default system slice. Adds them to config class.
"""
for slice in data.get('slivers'):
if slice['name'] == config.PLC_SLICE_PREFIX+"_default":
attr_dict = {}
for attr in slice.get('attributes'): attr_dict[attr['tagname']] = attr['value']
if len(attr_dict):
logger.verbose("nodemanager: Found default slice overrides.\n %s" % attr_dict)
config.OVERRIDES = attr_dict
return
# NOTE: if an _default slice existed, it would have been found above and
# the routine would return. Thus, if we've gotten here, then no default
# slice is bound to this node.
if 'OVERRIDES' in dir(config): del config.OVERRIDES
def start(self, delay=0):
''' Just start the sliver '''
logger.verbose('sliver_libvirt: %s start'%(self.name))
# Check if it's running to avoid throwing an exception if the
# domain was already running, create actually means start
if not self.is_running():
self.dom.create()
else:
logger.verbose('sliver_libvirt: sliver %s already started'%(self.name))
# After the VM is started... we can play with the virtual interface
# Create the ebtables rule to mark the packets going out from the virtual
# interface to the actual device so the filter canmatch against the mark
bwlimit.ebtables("-A INPUT -i veth%d -j mark --set-mark %d" % \
(self.xid, self.xid))
def log_call_read(command, timeout=logger.default_timeout_minutes*60, poll=1):
message = " ".join(command)
logger.log("log_call: running command %s" % message)
logger.verbose("log_call: timeout=%r s" % timeout)
logger.verbose("log_call: poll=%r s" % poll)
trigger = time.time()+timeout
try:
child = subprocess.Popen(
command, bufsize=1,
stdout=subprocess.PIPE, stderr=subprocess.PIPE,
close_fds=True,
universal_newlines=True)
stdout = ""
while True:
# see if anything can be read within the poll interval
(r, w, x) = select.select([child.stdout], [], [], poll)
if r:
stdout = stdout + child.stdout.read(1)
# is process over ?
returncode=child.poll()
# yes
if returncode != None:
stdout = stdout + child.stdout.read()
# child is done and return 0
if returncode == 0:
logger.log("log_call:end command (%s) completed" % message)
if stdout != "":
logger.log("log_call:stdout: %s" % stdout)
return (returncode, stdout)
# child has failed
else:
log("log_call:end command (%s) returned with code %d"
%(message, returncode))
return (returncode, stdout)
# no : still within timeout ?
if time.time() >= trigger:
child.terminate()
logger.log("log_call:end terminating command (%s) - exceeded timeout %d s"
%(message, timeout))
return (-2, None)
break
except Exception as e:
logger.log_exc("failed to run command %s -> %s" % (message, e))
return (-1, None)
def destroy(name):
# umount .ssh directory - only if mounted
Account.umount_ssh_dir(name)
logger.verbose ('sliver_lxc: %s destroy'%(name))
conn = Sliver_Libvirt.getConnection(Sliver_LXC.TYPE)
containerDir = Sliver_LXC.CON_BASE_DIR + '/%s'%(name)
try:
# Destroy libvirt domain
dom = conn.lookupByName(name)
except:
logger.verbose('sliver_lxc: Domain %s does not exist!' % name)
try:
dom.destroy()
except:
logger.verbose('sliver_lxc: Domain %s not running... continuing.' % name)
try:
dom.undefine()
except:
logger.verbose('sliver_lxc: Domain %s is not defined... continuing.' % name)
# Remove user after destroy domain to force logout
command = ['/usr/sbin/userdel', '-f', '-r', name]
logger.log_call(command, timeout=15*60)
if os.path.exists(os.path.join(containerDir,"vsys")):
# Slivers with vsys running will fail the subvolume delete.
# A more permanent solution may be to ensure that the vsys module
# is called before the sliver is destroyed.
logger.log("destroying vsys directory and restarting vsys")
logger.log_call(["rm", "-fR", os.path.join(containerDir, "vsys")])
logger.log_call(["/etc/init.d/vsys", "restart", ])
# Remove rootfs of destroyed domain
command = ['btrfs', 'subvolume', 'delete', containerDir]
logger.log_call(command, timeout=60)
if os.path.exists(containerDir):
# oh no, it's still here...
logger.log("WARNING: failed to destroy container %s" % containerDir)
logger.verbose('sliver_libvirt: %s destroyed.'%name)
def freezeUnits (self, var_name, freezeList):
for (slicename, freeze) in list(freezeList.items()):
try:
cgroup_path = cgroups.get_cgroup_path(slicename, 'freezer')
logger.verbose("CoreSched: setting freezer for {} to {} - path={} var={}"
.format(slicename,freeze, cgroup_path, var_name))
cgroup = os.path.join(cgroup_path, var_name)
if not cgroup:
logger.log("Warning: Could not spot 'freezer' cgroup file for slice {} - ignored".format(slicename))
break
if glo_coresched_simulate:
print("F", cgroup)
else:
with open(cgroup, "w") as f:
f.write(freeze)
except Exception as e:
# the cgroup probably didn't exit...
logger.log("CoreSched: exception while setting freeze for {} ({})".format(slicename, e))
def getPLCDefaults(self, data, config):
"""
Get PLC wide defaults from _default system slice. Adds them to config class.
"""
for slice in data.get('slivers'):
if slice['name'] == config.PLC_SLICE_PREFIX + "_default":
attr_dict = {}
for attr in slice.get('attributes'):
attr_dict[attr['tagname']] = attr['value']
if len(attr_dict):
logger.verbose(
"nodemanager: Found default slice overrides.\n %s" %
attr_dict)
config.OVERRIDES = attr_dict
return
# NOTE: if an _default slice existed, it would have been found above and
# the routine would return. Thus, if we've gotten here, then no default
# slice is bound to this node.
if 'OVERRIDES' in dir(config): del config.OVERRIDES
def run():
"""
When run as a thread, wait for event, lock db, deep copy it, release it,
run bwmon.GetSlivers(), then go back to waiting.
"""
logger.verbose("bwmon: Thread started")
while True:
lock.wait()
logger.verbose("bwmon: Event received. Running.")
database.db_lock.acquire()
nmdbcopy = copy.deepcopy(database.db)
database.db_lock.release()
try:
if getDefaults(nmdbcopy) and len(bwlimit.tc("class show dev %s" % dev_default)) > 0:
# class show to check if net:InitNodeLimit:bwlimit.init has run.
sync(nmdbcopy)
else: logger.log("bwmon: BW limits DISABLED.")
except: logger.log_exc("bwmon failed")
lock.clear()
def make_tiles_for_output(dir, wn_results, forecast):
logger.verbose("make_tiles_for_output({} {} {})".format(
dir, wn_results, forecast))
output_dir = wn_results[0]
results = wn_results[1]
layer_info_array = {}
# Iterate through runs to get GLOBAL maximum speed
max_speed = 0.
for res in results:
file_path = os.path.join(output_dir, res)
layer_info = getLayerInfo(file_path)
max_speed = max(max_speed, layer_info['max_speed'])
for res in results:
k = res.rfind("_")
time = res[:k]
time = time.replace("dem_", "")
name = res.split(".")[0]
tile_dir = os.path.join(dir, CONFIG.TILE_RASTER_FILE_NAME, name)
if not os.path.exists(tile_dir):
os.makedirs(tile_dir)
file_path = os.path.join(output_dir, res)
layer_info = getLayerInfo(file_path)
logger.debug("LAYER INFO: {}".format(layer_info))
ext = layer_info['extents']['4326']
bbox = (ext['xmin'], ext['ymin'], ext['xmax'], ext['ymax'])
proj4string = layer_info['extents'][
layer_info["native_wkid"]]["proj4string"]
logger.debug("Proj4String: {}".format(proj4string))
layer_info['max_speed'] = max_speed
layer_info_array[res] = layer_info
render_tiles(bbox, file_path, proj4string, max_speed, tile_dir,
CONFIG.TILE_RASTER_MIN_LEVEL,
CONFIG.TILE_RASTER_MAX_LEVEL, "WindNinja")
zipf = zipfile.ZipFile(str(os.path.join(dir, CONFIG.TILE_RASTER_ZIP_NAME)),
'w')
zipdir(os.path.join(dir, CONFIG.TILE_RASTER_FILE_NAME), zipf)
zipf.close()
return CONFIG.TILE_RASTER_ZIP_NAME, layer_info_array
def run(self):
# make sure to create /etc/planetlab/virt so others can read that
# used e.g. in vsys-scripts's sliceip
tools.get_node_virt()
try:
if self.options.daemon: tools.daemon()
# set log level
if (self.options.verbose):
logger.set_level(logger.LOG_VERBOSE)
# Load /etc/planetlab/plc_config
config = Config(self.options.config)
try:
other_pid = tools.pid_file()
if other_pid != None:
print """There might be another instance of the node manager running as pid %d.
If this is not the case, please remove the pid file %s. -- exiting""" % (other_pid, tools.PID_FILE)
return
except OSError, err:
print "Warning while writing PID file:", err
# load modules
self.loaded_modules = []
for module in self.modules:
try:
m = __import__(module)
logger.verbose("nodemanager: triggering %s.start"%m.__name__)
m.start()
self.loaded_modules.append(m)
except ImportError, err:
logger.log_exc ("ERROR while loading module %s - skipping:" % module)
# if we fail to load any of these, it's really no need to go on any further
if module in NodeManager.core_modules:
logger.log("FATAL : failed to load core module %s"%module)
except AttributeError, err:
# triggered when module doesn't have a 'start' method
logger.log_exc ("ERROR while starting module %s - skipping:" % module)
# if we fail to load any of these, it's really no need to go on any further
if module in NodeManager.core_modules:
logger.log("FATAL : failed to start core module %s"%module)
def write(perfDataList, timestamp, whitelistDict=None):
'''
main formatter function: returns a string of formatted entries
'''
entries = []
for perfEntry in perfDataList:
if (whitelistedJ2eeType(perfEntry, whitelistDict) == True):
l.debug("Writing output record as j2eeType is whitelisted")
formattedEntry = "{} {} {}".format(
formatTimeStamp(timestamp), formatTags(None),
formatFields(None, whitelistDict))
entries.append(formattedEntry)
l.debug(formattedEntry)
else:
l.debug(
"Output record not written as j2eeType: '%s' is not whitelisted"
% (perfEntry["tags"]))
l.verbose("Number of rows returned: %d" % (len(entries)))
returnedObj = "\n".join(entries)
return returnedObj
def trigger_test_output_test(test_file_path: str,
working_dir: str = "",
output_file_name: str = "",
check_for_existence: bool = False):
command = ["pytest"]
command += [f"{test_file_path}::{CombinationValidator.UNIT_TEST_NAME}"]
if working_dir:
command += ["--working_dir", working_dir]
if output_file_name:
command += ["--output_file_name", output_file_name]
command = " ".join(command)
try:
stdout, stderr, exit_code = run_subprocess(command)
except CalledProcessError as e:
if e.returncode is None or e.returncode not in [
code for code in ExitCode
]:
logger.info_error(
f"{CombinationValidator.__name__}: "
f"pytest operation failed. could not run the test.\n{e}")
return ExitCode.INTERNAL_ERROR
stdout = e.stdout
stderr = e.stderr
exit_code = e.returncode
except Exception as ex:
logger.info_error(
f"{CombinationValidator.__name__}: exception thrown during pytest operation."
f" could not run the test.\n{ex}")
return ExitCode.INTERNAL_ERROR
if not check_for_existence:
if exit_code == ExitCode.OK:
logger.verbose(
f"{CombinationValidator.__name__}: test '{CombinationValidator.UNIT_TEST_NAME}' passed."
)
else:
logger.info_error(
f"{CombinationValidator.__name__}: "
f"test '{CombinationValidator.UNIT_TEST_NAME}' failed.")
logger.debug(
f"{CombinationValidator.__name__}: {stdout}\n{stderr}.")
return exit_code
def log_call_read(command,timeout=logger.default_timeout_minutes*60,poll=1):
message=" ".join(command)
logger.log("log_call: running command %s" % message)
logger.verbose("log_call: timeout=%r s" % timeout)
logger.verbose("log_call: poll=%r s" % poll)
trigger=time.time()+timeout
try:
child = subprocess.Popen(command, bufsize=1,
stdout=subprocess.PIPE, stderr=subprocess.PIPE, close_fds=True)
stdout = ""
while True:
# see if anything can be read within the poll interval
(r,w,x)=select.select([child.stdout],[],[],poll)
if r: stdout = stdout + child.stdout.read(1)
# is process over ?
returncode=child.poll()
# yes
if returncode != None:
stdout = stdout + child.stdout.read()
# child is done and return 0
if returncode == 0:
logger.log("log_call:end command (%s) completed" % message)
if stdout != "":
logger.log("log_call:stdout: %s" % stdout)
return (returncode, stdout)
# child has failed
else:
logger.log("log_call:end command (%s) returned with code %d" %(message,returncode))
return (returncode, stdout)
# no : still within timeout ?
if time.time() >= trigger:
child.terminate()
logger.log("log_call:end terminating command (%s) - exceeded timeout %d s"%(message,timeout))
return (-2, None)
break
except:
logger.log_exc("failed to run command %s" % message)
return (-1, None)
def run():
"""
When run as a thread, wait for event, lock db, deep copy it, release it,
run bwmon.GetSlivers(), then go back to waiting.
"""
logger.verbose("bwmon: Thread started")
while True:
lock.wait()
logger.verbose("bwmon: Event received. Running.")
database.db_lock.acquire()
nmdbcopy = copy.deepcopy(database.db)
database.db_lock.release()
try:
if getDefaults(nmdbcopy) and len(
bwlimit.tc("class show dev %s" % dev_default)) > 0:
# class show to check if net:InitNodeLimit:bwlimit.init has run.
sync(nmdbcopy)
else:
logger.log("bwmon: BW limits DISABLED.")
except:
logger.log_exc("bwmon failed")
lock.clear()
def __init__(self, rec):
self.name = rec['name']
logger.verbose ('sliver_libvirt: %s init'%(self.name))
# Assume the directory with the image and config files
# are in place
self.keys = ''
self.rspec = {}
self.slice_id = rec['slice_id']
self.enabled = True
self.conn = Sliver_Libvirt.getConnection(rec['type'])
self.xid = bwlimit.get_xid(self.name)
dom = None
try:
dom = self.conn.lookupByName(self.name)
except:
logger.log('sliver_libvirt: Domain %s does not exist. ' \
'Will try to create it again.' % (self.name))
self.__class__.create(rec['name'], rec)
dom = self.conn.lookupByName(self.name)
self.dom = dom
def replace_file_with_string (target, new_contents, chmod=None, remove_if_empty=False):
try:
current=file(target).read()
except:
current=""
if current==new_contents:
# if turns out to be an empty string, and remove_if_empty is set,
# then make sure to trash the file if it exists
if remove_if_empty and not new_contents and os.path.isfile(target):
logger.verbose("tools.replace_file_with_string: removing file %s"%target)
try: os.unlink(target)
finally: return True
return False
# overwrite target file: create a temp in the same directory
path=os.path.dirname(target) or '.'
fd, name = tempfile.mkstemp('','repl',path)
os.write(fd,new_contents)
os.close(fd)
if os.path.exists(target):
os.unlink(target)
os.rename(name,target)
if chmod: os.chmod(target,chmod)
return True
def __init__(self, rec):
self.name = rec['name']
logger.verbose ('sliver_libvirt: {} init'.format(self.name))
# Assume the directory with the image and config files
# are in place
self.keys = ''
self.rspec = {}
self.slice_id = rec['slice_id']
self.enabled = True
self.conn = Sliver_Libvirt.getConnection(rec['type'])
self.xid = bwlimit.get_xid(self.name)
dom = None
try:
dom = self.conn.lookupByName(self.name)
except:
logger.log('sliver_libvirt: Domain {} does not exist. ' \
'Will try to create it again.'.format(self.name))
self.__class__.create(rec['name'], rec)
dom = self.conn.lookupByName(self.name)
self.dom = dom
def __init__ (self):
parser = optparse.OptionParser()
parser.add_option('-d', '--daemon', action='store_true', dest='daemon', default=False,
help='run daemonized')
parser.add_option('-f', '--config', action='store', dest='config', default='/etc/planetlab/plc_config',
help='PLC configuration file')
parser.add_option('-k', '--session', action='store', dest='session', default='/etc/planetlab/session',
help='API session key (or file)')
parser.add_option('-p', '--period', action='store', dest='period', default=NodeManager.default_period,
help='Polling interval (sec) - default %d'%NodeManager.default_period)
parser.add_option('-r', '--random', action='store', dest='random', default=NodeManager.default_random,
help='Range for additional random polling interval (sec) -- default %d'%NodeManager.default_random)
parser.add_option('-v', '--verbose', action='store_true', dest='verbose', default=False,
help='more verbose log')
parser.add_option('-P', '--path', action='store', dest='path', default=NodeManager.PLUGIN_PATH,
help='Path to plugins directory')
# NOTE: BUG the 'help' for this parser.add_option() wont list plugins from the --path argument
parser.add_option('-m', '--module', action='store', dest='user_module', default='', help='run a single module')
(self.options, args) = parser.parse_args()
if len(args) != 0:
parser.print_help()
sys.exit(1)
# determine the modules to be run
self.modules = NodeManager.core_modules
# Deal with plugins directory
if os.path.exists(self.options.path):
sys.path.append(self.options.path)
plugins = [ os.path.split(os.path.splitext(x)[0])[1] for x in glob.glob( os.path.join(self.options.path,'*.py') ) ]
self.modules += plugins
if self.options.user_module:
assert self.options.user_module in self.modules
self.modules=[self.options.user_module]
logger.verbose('nodemanager: Running single module %s'%self.options.user_module)
def ensure_created(self, rec):
"""Check account type is still valid. If not, recreate sliver.
If still valid, check if running and configure/start if not."""
logger.log_data_in_file(
rec, "/var/lib/nodemanager/%s.rec.txt" % rec['name'],
'raw rec captured in ensure_created', logger.LOG_VERBOSE)
curr_class = self._get_class()
next_class = type_acct_class[rec['type']]
if next_class != curr_class:
self._destroy(curr_class)
create_sem.acquire()
try:
next_class.create(self.name, rec)
finally:
create_sem.release()
if not isinstance(self._acct, next_class): self._acct = next_class(rec)
logger.verbose("account.Worker.ensure_created: %s, running=%r" %
(self.name, self.is_running()))
# reservation_alive is set on reservable nodes, and its value is a boolean
if 'reservation_alive' in rec:
# reservable nodes
if rec['reservation_alive']:
# this sliver has the lease, it is safe to start it
if not self.is_running(): self.start(rec)
else: self.configure(rec)
else:
# not having the lease, do not start it
self.configure(rec)
# usual nodes - preserve old code
# xxx it's not clear what to do when a sliver changes type/class
# in a reservable node
else:
if not self.is_running() or next_class != curr_class:
self.start(rec)
else:
self.configure(rec)
def replace_file_with_string(target, new_contents,
chmod=None, remove_if_empty=False):
"""
Replace a target file with a new contents checks for changes: does not do
anything if previous state was already right can handle chmod if requested
can also remove resulting file if contents are void, if requested performs
atomically: writes in a tmp file, which is then renamed (from sliverauth
originally) returns True if a change occurred, or the file is deleted
"""
try:
with open(target) as feed:
current = feed.read()
except:
current = ""
if current == new_contents:
# if turns out to be an empty string, and remove_if_empty is set,
# then make sure to trash the file if it exists
if remove_if_empty and not new_contents and os.path.isfile(target):
logger.verbose(
"tools.replace_file_with_string: removing file {}".format(target))
try:
os.unlink(target)
finally:
return True
return False
# overwrite target file: create a temp in the same directory
path = os.path.dirname(target) or '.'
fd, name = tempfile.mkstemp('', 'repl', path)
os.write(fd, new_contents.encode())
os.close(fd)
if os.path.exists(target):
os.unlink(target)
shutil.move(name, target)
if chmod:
os.chmod(target, chmod)
return True
def configure(self, rec):
"""Write <rec['keys']> to my authorized_keys file."""
logger.verbose('account: configuring %s' % self.name)
new_keys = rec['keys']
if new_keys != self.keys:
# get the unix account info
gid = grp.getgrnam("slices")[2]
pw_info = pwd.getpwnam(self.name)
uid = pw_info[2]
pw_dir = pw_info[5]
# write out authorized_keys file and conditionally create
# the .ssh subdir if need be.
dot_ssh = os.path.join(pw_dir, '.ssh')
if not os.path.isdir(dot_ssh):
if not os.path.isdir(pw_dir):
logger.verbose(
'account: WARNING: homedir %s does not exist for %s!' %
(pw_dir, self.name))
os.mkdir(pw_dir)
os.chown(pw_dir, uid, gid)
os.mkdir(dot_ssh)
auth_keys = os.path.join(dot_ssh, 'authorized_keys')
tools.write_file(auth_keys, lambda f: f.write(new_keys))
# set access permissions and ownership properly
os.chmod(dot_ssh, 0700)
os.chown(dot_ssh, uid, gid)
os.chmod(auth_keys, 0600)
os.chown(auth_keys, uid, gid)
# set self.keys to new_keys only when all of the above ops succeed
self.keys = new_keys
logger.log('account: %s: installed ssh keys' % self.name)
def InitI2(plc, data):
if not 'groups' in data: return
if "Internet2" in data['groups']:
logger.log("net: This is an Internet2 node. Setting rules.")
i2nodes = []
i2nodeids = plc.GetNodeGroups(["Internet2"])[0]['node_ids']
for node in plc.GetInterfaces({"node_id": i2nodeids}, ["ip"]):
# Get the IPs
i2nodes.append(node['ip'])
# this will create the set if it doesn't already exist
# and add IPs that don't exist in the set rather than
# just recreateing the set.
bwlimit.exempt_init('Internet2', i2nodes)
# set the iptables classification rule if it doesnt exist.
cmd = '-A POSTROUTING -m set --set Internet2 dst -j CLASSIFY --set-class 0001:2000 --add-mark'
rules = []
ipt = os.popen("/sbin/iptables-save")
for line in ipt.readlines(): rules.append(line.strip(" \n"))
ipt.close()
if cmd not in rules:
logger.verbose("net: Adding iptables rule for Internet2")
os.popen("/sbin/iptables -t mangle " + cmd)
def InitI2(plc, data):
if not 'groups' in data: return
if "Internet2" in data['groups']:
logger.log("net: This is an Internet2 node. Setting rules.")
i2nodes = []
i2nodeids = plc.GetNodeGroups(["Internet2"])[0]['node_ids']
for node in plc.GetInterfaces({"node_id": i2nodeids}, ["ip"]):
# Get the IPs
i2nodes.append(node['ip'])
# this will create the set if it doesn't already exist
# and add IPs that don't exist in the set rather than
# just recreateing the set.
bwlimit.exempt_init('Internet2', i2nodes)
# set the iptables classification rule if it doesnt exist.
cmd = '-A POSTROUTING -m set --set Internet2 dst -j CLASSIFY --set-class 0001:2000 --add-mark'
rules = []
ipt = os.popen("/sbin/iptables-save")
for line in ipt.readlines(): rules.append(line.strip(" \n"))
ipt.close()
if cmd not in rules:
logger.verbose("net: Adding iptables rule for Internet2")
os.popen("/sbin/iptables -t mangle " + cmd)
def get_targets(targets):
# parses an input of targets to get a list of all possible ips
target_list = []
try:
with open(targets, 'r') as file:
contents = file.readlines()
for i in (contents):
target = i.rstrip()
target_list.append(target)
logger.verbose('Amount of targets from input: {}'.format(logger.BLUE(str(len(target_list)))))
return target_list
except:
try:
if "/" in targets:
try:
subnet = IPNetwork(targets)
except:
logger.red('failed to parse')
quit()
for i in subnet:
tmp_str = str(i)
last_octet = str(tmp_str.split('.')[3])
if last_octet == '0' or last_octet == '255':
pass
else:
target_list.append(str(i))
logger.verbose('Amount of targets from input: {}'.format(logger.BLUE(str(len(target_list)))))
return target_list
elif "," in targets:
ips=targets.split(',')
for ip in ips:
target_list.append(ip)
logger.verbose('Amount of targets from input: {}'.format(logger.BLUE(str(len(target_list)))))
return target_list
else:
target_list.append(targets)
logger.verbose('Amount of targets from input: {}'.format(logger.BLUE(str(len(target_list)))))
return target_list
except:
logger.red('Failed to parse targets.')
quit()
def is_running(self):
''' Return True if the domain is running '''
logger.verbose('sliver_libvirt: %s is_running'%self.name)
try:
[state, _, _, _, _] = self.dom.info()
if state == libvirt.VIR_DOMAIN_RUNNING:
logger.verbose('sliver_libvirt: %s is RUNNING'%self.name)
return True
else:
info = debuginfo(self.dom)
logger.verbose('sliver_libvirt: %s is ' \
'NOT RUNNING...\n%s'%(self.name, info))
return False
except:
logger.verbose('sliver_libvirt: UNEXPECTED ERROR in ' \
'%s: %s'%(self.name, sys.exc_info()[1]))
print 'sliver_libvirt: UNEXPECTED ERROR in ' \
'%s: %s'%(self.name, sys.exc_info()[1])
return False
def GetSlivers(data, config = None, plc=None, fullupdate=True):
"""This function has two purposes. One, convert GetSlivers() data
into a more convenient format. Two, even if no updates are coming
in, use the GetSlivers() heartbeat as a cue to scan for expired
slivers."""
logger.verbose("slivermanager: Entering GetSlivers with fullupdate=%r"%fullupdate)
for key in data.keys():
logger.verbose('slivermanager: GetSlivers key : ' + key)
node_id = None
try:
f = open('/etc/planetlab/node_id')
try: node_id = int(f.read())
finally: f.close()
except: logger.log_exc("slivermanager: GetSlivers failed to read /etc/planetlab/node_id")
if data.has_key('node_id') and data['node_id'] != node_id: return
if data.has_key('networks'):
for network in data['networks']:
if network['is_primary'] and network['bwlimit'] is not None:
DEFAULT_ALLOCATION['net_max_rate'] = network['bwlimit'] / 1000
# Take initscripts (global) returned by API, build a hash scriptname->code
iscripts_hash = {}
if 'initscripts' not in data:
logger.log_missing_data("slivermanager.GetSlivers",'initscripts')
return
for initscript_rec in data['initscripts']:
logger.verbose("slivermanager: initscript: %s" % initscript_rec['name'])
iscripts_hash[str(initscript_rec['name'])] = initscript_rec['script']
adjustReservedSlivers (data)
for sliver in data['slivers']:
logger.verbose("slivermanager: %s: slivermanager.GetSlivers in slivers loop"%sliver['name'])
rec = sliver.copy()
rec.setdefault('timestamp', data['timestamp'])
# convert attributes field to a proper dict
attributes = {}
for attr in rec.pop('attributes'): attributes[attr['tagname']] = attr['value']
rec.setdefault("attributes", attributes)
# squash keys
keys = rec.pop('keys')
rec.setdefault('keys', '\n'.join([key_struct['key'] for key_struct in keys]))
## 'Type' isn't returned by GetSlivers() for whatever reason. We're overloading
## instantiation here, but i suppose its the same thing when you think about it. -FA
# Handle nm-controller here
if rec['instantiation'].lower() == 'nm-controller':
rec.setdefault('type', attributes.get('type', 'controller.Controller'))
else:
rec.setdefault('type', attributes.get('type', sliver_default_type))
# set the vserver reference. If none, set to default.
rec.setdefault('vref', attributes.get('vref', 'default'))
### set initscripts; set empty rec['initscript'] if not
# if tag 'initscript_code' is set, that's what we use
iscode = attributes.get('initscript_code','')
if iscode:
rec['initscript']=iscode
else:
isname = attributes.get('initscript')
if isname is not None and isname in iscripts_hash:
rec['initscript'] = iscripts_hash[isname]
else:
rec['initscript'] = ''
# set delegations, if none, set empty
rec.setdefault('delegations', attributes.get("delegations", []))
# extract the implied rspec
rspec = {}
rec['rspec'] = rspec
for resname, default_amount in DEFAULT_ALLOCATION.iteritems():
try:
t = type(default_amount)
amount = t.__new__(t, attributes[resname])
except (KeyError, ValueError): amount = default_amount
rspec[resname] = amount
# add in sysctl attributes into the rspec
for key in attributes.keys():
if key.find("sysctl.") == 0:
rspec[key] = attributes[key]
# also export tags in rspec so they make it to the sliver_vs.start call
rspec['tags']=attributes
database.db.deliver_record(rec)
if fullupdate: database.db.set_min_timestamp(data['timestamp'])
# slivers are created here.
database.db.sync()
def GetSlivers(self, config, plc):
"""Retrieves GetSlivers at PLC and triggers callbacks defined in modules/plugins"""
try:
logger.log("nodemanager: Syncing w/ PLC")
# retrieve GetSlivers from PLC
data = plc.GetSlivers()
# use the magic 'default' slice to retrieve system-wide defaults
self.getPLCDefaults(data, config)
# tweak the 'vref' attribute from GetSliceFamily
self.setSliversVref(data)
# dump it too, so it can be retrieved later in case of comm. failure
self.dumpSlivers(data)
# log it for debug purposes, no matter what verbose is
logger.log_slivers(data)
logger.verbose("nodemanager: Sync w/ PLC done")
last_data = data
except:
logger.log_exc("nodemanager: failed in GetSlivers")
# XXX So some modules can at least boostrap.
logger.log(
"nodemanager: Can't contact PLC to GetSlivers(). Continuing."
)
data = {}
# for modules that request it though the 'persistent_data' property
last_data = self.loadSlivers()
logger.log("*************************************************")
#logger.log("we should provide these information to PEARL TEAM")
logger.log_map({}, "******************************************")
#wangyang,get slice map from date fetched from myplc
slicemap = self.getslicemap(data)
#logger.log_map(slicemap,"slicemap")
#wangyang,get slice map from db
slicemapdb = self.loadmap(slicemap)
#logger.log_map(slicemapdb,"slicedb")
#wangyang,compare two files
slicemapdb = self.handlemap(slicemap, slicemapdb)
#logger.log_map(slicemapdb,"dbafter compare")
#wangyang,update to router
slicemapdb = self.updatetoRouter(slicemapdb)
#logger.log_map(slicemapdb,"db after update")
#wangyang,update to router
self.savemap(slicemapdb)
#wangyang,write into txt
logger.log_map(slicemapdb, "write to db")
'''
for sliver in last_data['slivers']:
logger.log("sliceid is %s"%sliver['slice_id'])
if sliver['slice_id'] > 4:
logfile = '/var/log/slice/slice.'+sliver['name']
#logger.logslice("slicename: %s"%sliver['name'],logfile)
logger.logslice("sliceid: %s"%sliver['slice_id'],logfile)
vmid=self.createslver(sliver['slice_id'])
logger.log("vmid is %s"%vmid)
logger.logmap(sliver['slice_id'],vmid)
#logger.logslice("keys: %s"%sliver['keys'],logfile)
'''
logger.log("*************************************************")
# Invoke GetSlivers() functions from the callback modules
for module in self.loaded_modules:
logger.verbose('nodemanager: triggering %s.GetSlivers' %
module.__name__)
try:
callback = getattr(module, 'GetSlivers')
module_data = data
if getattr(module, 'persistent_data', False):
module_data = last_data
callback(data, config, plc)
except:
logger.log_exc(
"nodemanager: GetSlivers failed to run callback for module %r"
% module)
def __init__(self, name):
self.name = name
self.keys = ''
logger.verbose('account: Initing account %s' % name)
def render_tiles(bbox,
data_file,
proj4string,
max_speed,
tile_dir,
minZoom=1,
maxZoom=18,
name="unknown",
num_threads=NUM_THREADS,
tms_scheme=False):
logger.verbose("render_tiles({} {} {} {} {} {})".format(
bbox, data_file, tile_dir, minZoom, maxZoom, name))
# Launch rendering threads
queue = Queue(32)
printLock = threading.Lock()
renderers = {}
for i in range(num_threads):
renderer = RenderThread(tile_dir, data_file, proj4string, max_speed,
queue, printLock, maxZoom)
render_thread = threading.Thread(target=renderer.loop)
render_thread.start()
renderers[i] = render_thread
if not os.path.isdir(tile_dir):
os.makedirs(tile_dir)
gprj = GoogleProjection(maxZoom + 1)
ll0 = (bbox[0], bbox[3])
ll1 = (bbox[2], bbox[1])
for z in range(minZoom, maxZoom + 1):
px0 = gprj.fromLLtoPixel(ll0, z)
px1 = gprj.fromLLtoPixel(ll1, z)
logger.debug("\nZOOOOOOOOM: {}".format(z))
logger.debug("PX 0: {}".format(px0))
logger.debug("PX 1: {}".format(px1))
logger.debug("BBOX: {}".format(bbox))
for x in range(int(px0[0] / (SIZE_X * 1.0)),
int(px1[0] / (SIZE_Y * 1.0)) + 1):
# Validate x co-ordinate
if (x < 0) or (x >= 2**z):
continue
# check if we have directories in place
zoom = "%s" % z
str_x = "%s" % x
zx_dir = os.path.join(tile_dir, zoom, str_x)
if not os.path.isdir(zx_dir):
os.makedirs(zx_dir)
for y in range(int(px0[1] / (SIZE_X * 1.0)),
int(px1[1] / (SIZE_Y * 1.0)) + 1):
# Validate x co-ordinate
if (y < 0) or (y >= 2**z):
continue
# flip y to match OSGEO TMS spec
if tms_scheme:
str_y = "%s" % ((2**z - 1) - y)
else:
str_y = "%s" % y
tile_uri = os.path.join(tile_dir, zoom, str_x,
'{0}.png'.format(str_y))
# Submit tile to be rendered into the queue
t = (name, tile_uri, x, y, z)
try:
queue.put(t)
except KeyboardInterrupt:
raise SystemExit("Ctrl-c detected, exiting...")
# Signal render threads to exit by sending empty request to queue
for i in range(num_threads):
queue.put(None)
# wait for pending rendering jobs to complete
queue.join()
for i in range(num_threads):
renderers[i].join()
def is_running(self):
logger.verbose("controller: is_running: %s" % self.name)
return getpwnam(self.name)[6] == self.SHELL