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#!/usr/bin/python -i
'''This tool loads the Bcfg2 core into an interactive debugger'''
__revision__ = '$Revision$'
import copy, logging, lxml.etree, sys, time, cmd
import Bcfg2.Logging, Bcfg2.Server.Core, os
import Bcfg2.Server.Plugins.Metadata, Bcfg2.Server.Plugin
class dummyError(Exception):
pass
def printTabular(rows):
'''print data in tabular format'''
cmax = tuple([max([len(str(row[index])) for row in rows]) + 1 for index in xrange(len(rows[0]))])
fstring = (" %%-%ss |" * len(cmax)) % cmax
fstring = ('|'.join([" %%-%ss "] * len(cmax))) % cmax
print fstring % rows[0]
print (sum(cmax) + (len(cmax) * 2) + (len(cmax) - 1)) * '='
for row in rows[1:]:
print fstring % row
class infoCore(cmd.Cmd, Bcfg2.Server.Core.Core):
def __init__(self, cfpath):
cmd.Cmd.__init__(self)
try:
Bcfg2.Server.Core.Core.__init__(self, {}, cfpath)
except Bcfg2.Server.Core.CoreInitError, msg:
print "Core load failed because %s" % msg
raise SystemExit(1)
self.prompt = '> '
self.cont = True
for i in range(25):
print "Filesystem check %d of %d" % (i + 1, 25)
self.fam.Service()
time.sleep(0.5)
def do_debug(self, _):
self.cont = False
raise dummyError
def do_quit(self, _):
"""Exit program.
Usage: [quit|exit]"""
raise SystemExit(0)
do_EOF = do_quit
def do_help(self, _):
'''print out usage info'''
print 'Commands:'
print 'build <hostname> <filename> - build config for hostname, writing to filename'
print 'buildall <directory> - build configs for all clients in directory'
print 'buildfile <filename> <hostname> - build config file for hostname (not written to disk)'
print 'bundles - print out group/bundle information'
print 'clients - print out client/profile information'
print 'debug - shell out to native python interpreter'
print 'generators - list current versions of generators'
print 'groups - list groups'
print 'help - print this text'
print 'mappings <type*> <name*>- print generator mappings for optional type and name'
print 'quit'
print 'showentries <hostname> <type> - show abstract configuration entries for a given host'
print 'showclient <client1> <client2> - show metadata for given hosts'
print 'update - process pending file events'
print 'version - print version of this tool'
def do_update(self, _):
'''Process pending fs events'''
self.fam.Service()
def do_version(self, _):
'''print out code version'''
print __revision__
def do_build(self, args):
'''build client configuration'''
if len(args.split()) == 2:
client, ofile = args.split()
output = open(ofile, 'w')
data = lxml.etree.tostring(self.BuildConfiguration(client))
output.write(data)
output.close()
else:
print 'Usage: build <hostname> <output file>'
def do_buildall(self, args):
if len(args.split()) != 2:
print "Usage: buildall <directory>"
return
try:
os.mkdir(args)
except:
pass
for client in self.metadata.clients:
self.do_build(client, "%s/%s.xml" % (args, client))
def do_buildfile(self, args):
'''build a config file for client'''
if len(args.split()) == 2:
fname, client = args.split()
entry = lxml.etree.Element('ConfigFile', name=fname)
metadata = self.metadata.get_metadata(client)
self.Bind(entry, metadata)
print lxml.etree.tostring(entry)
else:
print 'Usage: buildfile filename hostname'
def do_bundles(self, _):
'''print out group/bundle info'''
data = [('Group', 'Bundles')]
groups = self.metadata.groups.keys()
groups.sort()
for group in groups:
data.append((group,
','.join(self.metadata.groups[group][0])))
printTabular(data)
def do_clients(self, _):
'''print out client info'''
data = [('Client', 'Profile')]
clist = self.metadata.clients.keys()
clist.sort()
for client in clist:
data.append((client, self.metadata.clients[client]))
printTabular(data)
def do_generators(self, _):
'''print out generator info'''
for generator in self.generators:
print generator.__version__
def do_showentries(self, args):
'''show abstract configuration entries for a given host'''
arglen = len(args.split())
if arglen not in [2, 3]:
print "Usage: showentries <hostname> <type>"
return
client = args.split()[0]
try:
meta = self.metadata.get_metadata(client)
except Bcfg2.Server.Plugins.Metadata.MetadataConsistencyError:
print "Unable to find metadata for host %s" % client
return
structures = self.GetStructures(meta)
output = [('entrytype', 'name')]
if arglen == 1:
for item in structures:
for child in item.getchildren():
output.append((child.tag, child.get('name')))
if arglen == 2:
etype = args.split()[1]
for item in structures:
for child in item.getchildren():
if child.tag == etype:
output.append((child.tag, child.get('name')))
printTabular(output)
def do_groups(self, _):
'''print out group info'''
data = [("Groups", "Profile", "Category", "Contains")]
grouplist = self.metadata.groups.keys()
grouplist.sort()
for group in grouplist:
if group in self.metadata.profiles:
prof = 'yes'
else:
prof = 'no'
if self.metadata.categories.has_key(group):
cat = self.metadata.categories[group]
else:
cat = ''
gdata = [grp for grp in self.metadata.groups[group][1]]
if group in gdata:
gdata.remove(group)
data.append((group, prof, cat, ','.join(gdata)))
printTabular(data)
def complete_showclient(self, text, line, begidx, endidx):
return [entry for entry in self.metadata.clients \
if entry.startswith(text)]
def do_showclient(self, args):
''' print host metadata'''
data = [('Client', 'Profile', "Groups", "Bundles")]
if not len(args):
print "Usage:\nshowclient <client> ... <clientN>"
return
for client in args.split():
if client not in self.metadata.clients:
print "Client %s not defined" % client
continue
profile = self.metadata.clients[client]
bds, gps, cgs = \
copy.deepcopy(self.metadata.groups[profile])
gps.remove(profile)
numbundles = len(bds)
numgroups = len(gps)
num = max((numbundles, numgroups))
for i in range(0, num):
if i == 0:
c = client
p = profile
else:
c = ""
p = ""
if i < numbundles:
b = bds[i]
else:
b = ""
if i < numgroups:
g = gps[i]
else:
g = ""
data.append((c, p, g, b))
if len(data) > 1:
printTabular(data)
def do_mappings(self, args):
'''print out mapping info'''
# dump all mappings unless type specified
data = [('Plugin', 'Type', 'Name')]
arglen = len(args.split())
for generator in self.generators:
if arglen == 0:
etypes = generator.Entries.keys()
else:
etypes = [args.split()[0]]
if arglen == 2:
interested = [(etype, [args.split()[1]]) \
for etype in etypes]
else:
interested = [(etype, generator.Entries[etype]) \
for etype in etypes \
if generator.Entries.has_key(etype)]
for etype, names in interested:
for name in [name for name in names if name in \
generator.Entries.get(etype, {})]:
data.append((generator.__name__, etype, name))
printTabular(data)
if __name__ == '__main__':
Bcfg2.Logging.setup_logging('bcfg2-info', to_syslog=False)
logger = logging.getLogger('bcfg2-info')
if '-C' in sys.argv:
cfile = sys.argv[-1]
else:
cfile = '/etc/bcfg2.conf'
loop = infoCore(cfile)
while loop.cont:
try:
loop.cmdloop()
except SystemExit, val:
raise
except Bcfg2.Server.Plugin.PluginExecutionError:
continue
except dummyError:
continue
except:
logger.error("command failure", exc_info=1)
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