1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
|
'''BB Plugin'''
import Bcfg2.Server.Plugin
import lxml.etree
import sys, os
from socket import gethostbyname
PROFILE_MAP = {"ubuntu-i386":"compute-node",
"ubuntu-amd64":"compute-node-amd64",
"fc6":"fc6-compute-node",
"peta":"pvfs-server",
"bbsto":"fileserver",
"bblogin":"head-node"}
class BB(Bcfg2.Server.Plugin.GeneratorPlugin,
Bcfg2.Server.Plugin.StructurePlugin,
Bcfg2.Server.Plugins.Metadata.Metadata,
Bcfg2.Server.Plugin.DirectoryBacked):
'''BB Plugin handles bb node configuration'''
__name__ = 'BB'
def __init__(self, core, datastore):
Bcfg2.Server.Plugin.GeneratorPlugin.__init__(self, core, datastore)
try:
Bcfg2.Server.Plugin.DirectoryBacked.__init__(self, self.data, self.core.fam)
except OSError, ioerr:
self.logger.error("Failed to load BB repository from %s" % (self.data))
self.logger.error(ioerr)
raise Bcfg2.Server.Plugin.PluginInitError
Bcfg2.Server.Plugins.Metadata.Metadata.__init__(self, core, datastore, False)
print self.addresses
self.Entries = {'ConfigFile':{'/etc/security/limits.conf':self.gen_limits,
'/root/.ssh/authorized_keys':self.gen_root_keys,
'/etc/sudoers':self.gen_sudoers,
'/etc/dhcp3/dhcpd.conf':self.gen_dhcpd}}
self.nodes = {}
def gen_dhcpd(self, entry, metadata):
'''Generate dhcpd.conf'''
entry.text = "host %s {\n" % metadata.hostname
host = metadata.hostname.split('.')[0]
if self.nodes[host].has_key('loader'):
entry.text += " filename %s;\n" % self.nodes[host]['loader']
entry.text += " hardware ethernet %s;\n" % (self.nodes[host]
['mac'])
try:
entry.text += " fixed-address %s;\n}" % \
gethostbyname(metadata.hostname)
except:
sys.stderr.write("LOOKUP failed for %s\n" % (metadata.hostname))
perms = {'owner':'root', 'group':'root', 'perms':'644'}
[entry.attrib.__setitem__(key, value) for (key, value)
in perms.iteritems()]
def gen_root_keys(self, entry, metadata):
'''Build /root/.ssh/authorized_keys entry'''
users = self.get_users(metadata)
rdata = self.entries
entry.text = "".join([rdata["%s.key" % user].data for user
in users if rdata.has_key("%s.key" % user)])
perms = {'owner':'root', 'group':'root', 'perms':'0600'}
[entry.attrib.__setitem__(key, value) for (key, value)
in perms.iteritems()]
def gen_sudoers(self, entry, metadata):
'''Build /etc/sudoers entry'''
users = self.get_users(metadata)
entry.text = self.entries['static.sudoers'].data
entry.text += "".join(["%s ALL=(ALL) ALL\n" % user
for user in users])
perms = {'owner':'root', 'group':'root', 'perms':'0440'}
[entry.attrib.__setitem__(key, value) for (key, value)
in perms.iteritems()]
def gen_limits(self, entry, metadata):
'''Build /etc/security/limits.conf entry'''
users = self.get_users(metadata)
entry.text = self.entries["static.limits.conf"].data
perms = {'owner':'root', 'group':'root', 'perms':'0600'}
[entry.attrib.__setitem__(key, value) for (key, value) in perms.iteritems()]
entry.text += "".join(["%s hard maxlogins 1024\n" % uname for uname in users])
if "*" not in users:
entry.text += "* hard maxlogins 0\n"
def get_users(self, metadata):
'''Get users associated with a specific host'''
users = []
for host, host_dict in self.nodes.iteritems():
if host == metadata.hostname.split('.')[0]:
if host_dict.has_key('user'):
if host_dict['user'] != "none":
users.append(host_dict['user'])
return users
def BuildStructures(self, metadata):
'''Update build/boot state when client gets configuration'''
try:
host_attr = self.nodes[metadata.hostname.split('.')[0]]
except KeyError:
self.logger.error("failed to find metadata for host %s"
% metadata.hostname)
return []
if host_attr['action'].startswith("build"):
# make new action string
action = ""
if host_attr['action'] == "build":
action = "boot"
else:
action = host_attr['action'].replace("build", "boot", 1)
# write changes to file
bb_tree = lxml.etree.parse(self.entries["bb.xml"])
nodes = bb_tree.getroot().findall(".//Node")
for node in nodes:
if node.attrib['name'] == metadata.hostname.split('.')[0]:
node.attrib['action'] = action
break
bb_tree.write("%s/%s" % (self.data, 'bb.xml'))
return []
def HandleEvent(self, event=None):
'''Handle events'''
Bcfg2.Server.Plugin.DirectoryBacked.HandleEvent(self, event)
# send events to groups.xml back to Metadata plugin
if event and "groups.xml" == event.filename:
Bcfg2.Server.Plugins.Metadata.Metadata.HandleEvent(self, event)
# handle events to bb.xml
if event and "bb.xml" == event.filename:
bb_tree = lxml.etree.parse(self.entries["bb.xml"])
root = bb_tree.getroot()
elements = root.findall(".//Node")
for node in elements:
host = node.attrib['name']
node_dict = node.attrib
if node.findall("Interface"):
node_dict['mac'] = node.findall("Interface")[0].attrib['mac']
# populate self.clients dict
full_hostname = host + ".mcs.anl.gov"
profile = ""
# need to translate image/action into profile name
if "ubuntu" in node_dict['action']:
if "amd64" in node_dict['action']:
profile = PROFILE_MAP["ubuntu-amd64"]
else:
profile = PROFILE_MAP["ubuntu-i386"]
elif "fc6" in node_dict['action']:
profile = PROFILE_MAP["fc6"]
elif "peta" in host:
profile = PROFILE_MAP["peta"]
elif "bbsto" in host:
profile = PROFILE_MAP["bbsto"]
elif "bblogin" in host:
profile = PROFILE_MAP["head-node"]
else:
profile = "basic"
self.clients[full_hostname] = profile
# check links in tftpboot
mac = node_dict['mac'].replace(':','-').lower()
linkname = "/tftpboot/pxelinux.cfg/01-%s" % (mac)
self.nodes[host] = node_dict
try:
if os.readlink(linkname) != node_dict['action']:
os.unlink(linkname)
os.symlink(node_dict['action'], linkname)
except OSError:
self.logger.error("failed to find link for mac address %s" % mac)
continue
|