1 # Copyright (c) 2003 Intel Corporation
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5 # modification, are permitted provided that the following conditions are
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32 # EXPORT LAWS: THIS LICENSE ADDS NO RESTRICTIONS TO THE EXPORT LAWS OF
33 # YOUR JURISDICTION. It is licensee's responsibility to comply with any
34 # export regulations applicable in licensee's jurisdiction. Under
35 # CURRENT (May 2000) U.S. export regulations this software is eligible
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45 from Exceptions import *
47 from systeminfo import systeminfo
54 Writes out the following configuration files for the node:
57 /etc/sysconfig/network-scripts/ifcfg-eth0
58 /etc/resolv.conf (if applicable)
59 /etc/sysconfig/network
62 /etc/ssh/ssh_host_rsa_key
63 /etc/ssh/ssh_host_dsa_key
65 Expect the following variables from the store:
66 VERSION the version of the install
67 SYSIMG_PATH the path where the system image will be mounted
68 (always starts with TEMP_PATH)
69 PARTITIONS dictionary of generic part. types (root/swap)
70 and their associated devices.
71 PLCONF_DIR The directory to store the configuration file in
72 NETWORK_SETTINGS A dictionary of the values from the network
74 BOOT_CD_VERSION A tuple of the current bootcd version
76 Sets the following variables:
81 log.write( "\n\nStep: Install: Writing configuration files.\n" )
83 # make sure we have the variables we need
85 VERSION= vars["VERSION"]
87 raise ValueError, "VERSION"
89 SYSIMG_PATH= vars["SYSIMG_PATH"]
91 raise ValueError, "SYSIMG_PATH"
93 PARTITIONS= vars["PARTITIONS"]
94 if PARTITIONS == None:
95 raise ValueError, "PARTITIONS"
97 PLCONF_DIR= vars["PLCONF_DIR"]
99 raise ValueError, "PLCONF_DIR"
101 NETWORK_SETTINGS= vars["NETWORK_SETTINGS"]
102 if NETWORK_SETTINGS == "":
103 raise ValueError, "NETWORK_SETTINGS"
105 BOOT_CD_VERSION= vars["BOOT_CD_VERSION"]
106 if BOOT_CD_VERSION == "":
107 raise ValueError, "BOOT_CD_VERSION"
109 except KeyError, var:
110 raise BootManagerException, "Missing variable in vars: %s\n" % var
111 except ValueError, var:
112 raise BootManagerException, "Variable in vars, shouldn't be: %s\n" % var
115 # we need to keys in PARTITIONS, root and swap, make sure
117 val= PARTITIONS["root"]
118 val= PARTITIONS["swap"]
119 val= PARTITIONS["vservers"]
120 val= PARTITIONS["mapper-root"]
121 val= PARTITIONS["mapper-swap"]
122 val= PARTITIONS["mapper-vservers"]
123 except KeyError, part:
124 log.write( "Missing partition in PARTITIONS: %s\n" % part )
128 log.write( "Setting local time to UTC\n" )
129 utils.sysexec( "chroot %s ln -sf /usr/share/zoneinfo/UTC /etc/localtime" % \
133 log.write( "Enabling ntp at boot\n" )
134 utils.sysexec( "chroot %s chkconfig ntpd on" % SYSIMG_PATH, log )
136 log.write( "Creating system directory %s\n" % PLCONF_DIR )
137 if not utils.makedirs( "%s/%s" % (SYSIMG_PATH,PLCONF_DIR) ):
138 log.write( "Unable to create directory\n" )
142 log.write( "Writing network configuration\n" )
143 write_network_configuration( vars, log )
145 # write out the modprobe.conf file for the system. make sure
146 # the order of the ethernet devices are listed in the same order
147 # as the boot cd loaded the modules. this is found in /tmp/loadedmodules
148 # ultimately, the order will only match the boot cd order if
149 # the kernel modules have the same name - which should be true for the later
150 # version boot cds because they use the same kernel version.
151 # older boot cds use a 2.4.19 kernel, and its possible some of the network
152 # module names have changed, in which case the system might not boot
153 # if the network modules are activated in a different order that the
155 log.write( "Writing /etc/modprobe.conf\n" )
157 # get the kernel version
158 initrd= os.readlink( "%s/boot/initrd-boot" % SYSIMG_PATH )
159 kernel_version= initrd.replace("initrd-", "").replace(".img", "")
161 sysinfo= systeminfo()
162 sysmods= sysinfo.get_system_modules(SYSIMG_PATH, kernel_version)
164 raise BootManagerException, "Unable to get list of system modules."
169 modulesconf_file= file("%s/etc/modprobe.conf" % SYSIMG_PATH, "w" )
172 if type == sysinfo.MODULE_CLASS_SCSI:
173 for a_mod in sysmods[type]:
175 modulesconf_file.write( "alias scsi_hostadapter %s\n" %
178 modulesconf_file.write( "alias scsi_hostadapter%d %s\n" %
180 scsi_count= scsi_count + 1
182 elif type == sysinfo.MODULE_CLASS_NETWORK:
183 for a_mod in sysmods[type]:
184 modulesconf_file.write( "alias eth%d %s\n" %
186 eth_count= eth_count + 1
188 modulesconf_file.close()
189 modulesconf_file= None
192 # dump the modprobe.conf file to the log (not to screen)
193 log.write( "Contents of new modprobe.conf file:\n" )
194 modulesconf_file= file("%s/etc/modprobe.conf" % SYSIMG_PATH, "r" )
195 contents= modulesconf_file.read()
196 log.write( contents + "\n" )
197 modulesconf_file.close()
198 modulesconf_file= None
199 log.write( "End contents of new modprobe.conf file.\n" )
201 log.write( "Writing system /etc/fstab\n" )
202 fstab= file( "%s/etc/fstab" % SYSIMG_PATH, "w" )
203 fstab.write( "%s none swap sw 0 0\n" % \
204 PARTITIONS["mapper-swap"] )
205 fstab.write( "%s / ext3 defaults 0 0\n" % \
206 PARTITIONS["mapper-root"] )
207 fstab.write( "%s /vservers ext3 tagxid,defaults 0 0\n" % \
208 PARTITIONS["mapper-vservers"] )
209 fstab.write( "none /proc proc defaults 0 0\n" )
210 fstab.write( "none /dev/shm tmpfs defaults 0 0\n" )
211 fstab.write( "none /dev/pts devpts defaults 0 0\n" )
212 fstab.write( "none /rcfs rcfs defaults 0 0\n" )
216 log.write( "Writing system /etc/issue\n" )
217 issue= file( "%s/etc/issue" % SYSIMG_PATH, "w" )
218 issue.write( "PlanetLab Node: \\n\n" )
219 issue.write( "Kernel \\r on an \\m\n" )
220 issue.write( "http://www.planet-lab.org\n\n" )
223 log.write( "Setting up authentication (non-ssh)\n" )
224 utils.sysexec( "chroot %s authconfig --nostart --kickstart --enablemd5 " \
225 "--enableshadow" % SYSIMG_PATH, log )
226 utils.sysexec( "sed -e 's/^root\:\:/root\:*\:/g' " \
227 "%s/etc/shadow > %s/etc/shadow.new" % \
228 (SYSIMG_PATH,SYSIMG_PATH), log )
229 utils.sysexec( "chroot %s mv " \
230 "/etc/shadow.new /etc/shadow" % SYSIMG_PATH, log )
231 utils.sysexec( "chroot %s chmod 400 /etc/shadow" % SYSIMG_PATH, log )
233 # if we are setup with dhcp, copy the current /etc/resolv.conf into
234 # the system image so we can run programs inside that need network access
237 method= vars['NETWORK_SETTINGS']['method']
242 utils.sysexec( "cp /etc/resolv.conf %s/etc/" % SYSIMG_PATH, log )
244 # the kernel rpm should have already done this, so don't fail the
245 # install if it fails
246 log.write( "Mounting /proc in system image\n" )
247 utils.sysexec_noerr( "mount -t proc proc %s/proc" % SYSIMG_PATH, log )
249 # mkinitrd references both /etc/modprobe.conf and /etc/fstab
250 # as well as /proc/lvm/global. The kernel RPM installation
251 # likely created an improper initrd since these files did not
252 # yet exist. Re-create the initrd here.
253 log.write( "Making initrd\n" )
255 # trick mkinitrd in case the current environment does not have device mapper
257 if not os.path.exists( "%s/%s" % (SYSIMG_PATH,PARTITIONS["mapper-root"]) ):
259 utils.makedirs( "%s/dev/mapper" % SYSIMG_PATH )
260 rootdev= file( "%s/%s" % (SYSIMG_PATH,PARTITIONS["mapper-root"]), "w" )
264 utils.removefile( "%s/boot/%s" % (SYSIMG_PATH, initrd) )
265 utils.sysexec( "chroot %s mkinitrd /boot/initrd-%s.img %s" % \
266 (SYSIMG_PATH, kernel_version, kernel_version), log )
268 if fake_root_lvm == 1:
269 utils.removefile( "%s/%s" % (SYSIMG_PATH,PARTITIONS["mapper-root"]) )
271 log.write( "Writing node install version\n" )
272 utils.makedirs( "%s/etc/planetlab" % SYSIMG_PATH )
273 ver= file( "%s/etc/planetlab/install_version" % SYSIMG_PATH, "w" )
274 ver.write( "%s\n" % VERSION )
277 log.write( "Creating ssh host keys\n" )
278 key_gen_prog= "/usr/bin/ssh-keygen"
280 log.write( "Generating SSH1 RSA host key:\n" )
281 key_file= "/etc/ssh/ssh_host_key"
282 utils.sysexec( "chroot %s %s -q -t rsa1 -f %s -C '' -N ''" %
283 (SYSIMG_PATH,key_gen_prog,key_file), log )
284 utils.sysexec( "chmod 600 %s/%s" % (SYSIMG_PATH,key_file), log )
285 utils.sysexec( "chmod 644 %s/%s.pub" % (SYSIMG_PATH,key_file), log )
287 log.write( "Generating SSH2 RSA host key:\n" )
288 key_file= "/etc/ssh/ssh_host_rsa_key"
289 utils.sysexec( "chroot %s %s -q -t rsa -f %s -C '' -N ''" %
290 (SYSIMG_PATH,key_gen_prog,key_file), log )
291 utils.sysexec( "chmod 600 %s/%s" % (SYSIMG_PATH,key_file), log )
292 utils.sysexec( "chmod 644 %s/%s.pub" % (SYSIMG_PATH,key_file), log )
294 log.write( "Generating SSH2 DSA host key:\n" )
295 key_file= "/etc/ssh/ssh_host_dsa_key"
296 utils.sysexec( "chroot %s %s -q -t dsa -f %s -C '' -N ''" %
297 (SYSIMG_PATH,key_gen_prog,key_file), log )
298 utils.sysexec( "chmod 600 %s/%s" % (SYSIMG_PATH,key_file), log )
299 utils.sysexec( "chmod 644 %s/%s.pub" % (SYSIMG_PATH,key_file), log )
305 def write_network_configuration( vars, log ):
307 Write out the network configuration for this machine:
309 /etc/sysconfig/network-scripts/ifcfg-eth0
310 /etc/resolv.conf (if applicable)
311 /etc/sysconfig/network
313 It is assumed the caller mounted the root partition and the vserver partition
314 starting on SYSIMG_PATH - it is not checked here.
316 The values to be used for the network settings are to be set in vars
317 in the variable 'NETWORK_SETTINGS', which is a dictionary
320 Key Used by this function
321 -----------------------------------------------
338 SYSIMG_PATH= vars["SYSIMG_PATH"]
339 if SYSIMG_PATH == "":
340 raise ValueError, "SYSIMG_PATH"
342 except KeyError, var:
343 raise BootManagerException, "Missing variable in vars: %s\n" % var
344 except ValueError, var:
345 raise BootManagerException, "Variable in vars, shouldn't be: %s\n" % var
349 network_settings= vars['NETWORK_SETTINGS']
351 raise BootManagerException, "No network settings found in vars."
354 hostname= network_settings['hostname']
355 domainname= network_settings['domainname']
356 method= network_settings['method']
357 ip= network_settings['ip']
358 gateway= network_settings['gateway']
359 network= network_settings['network']
360 netmask= network_settings['netmask']
361 dns1= network_settings['dns1']
363 raise BootManagerException, "Missing value %s in network settings." % str(e)
367 dns2= network_settings['dns2']
372 log.write( "Writing /etc/hosts\n" )
373 hosts_file= file("%s/etc/hosts" % SYSIMG_PATH, "w" )
374 hosts_file.write( "127.0.0.1 localhost\n" )
375 if method == "static":
376 hosts_file.write( "%s %s.%s\n" % (ip, hostname, domainname) )
381 log.write( "Writing /etc/sysconfig/network-scripts/ifcfg-eth0\n" )
382 eth0_file= file("%s/etc/sysconfig/network-scripts/ifcfg-eth0" %
384 eth0_file.write( "DEVICE=eth0\n" )
385 if method == "static":
386 eth0_file.write( "BOOTPROTO=static\n" )
387 eth0_file.write( "IPADDR=%s\n" % ip )
388 eth0_file.write( "NETMASK=%s\n" % netmask )
389 eth0_file.write( "GATEWAY=%s\n" % gateway )
391 eth0_file.write( "BOOTPROTO=dhcp\n" )
392 eth0_file.write( "DHCP_HOSTNAME=%s\n" % hostname )
393 eth0_file.write( "ONBOOT=yes\n" )
394 eth0_file.write( "USERCTL=no\n" )
398 if method == "static":
399 log.write( "Writing /etc/resolv.conf\n" )
400 resolv_file= file("%s/etc/resolv.conf" % SYSIMG_PATH, "w" )
402 resolv_file.write( "nameserver %s\n" % dns1 )
404 resolv_file.write( "nameserver %s\n" % dns2 )
405 resolv_file.write( "search %s\n" % domainname )
409 log.write( "Writing /etc/sysconfig/network\n" )
410 network_file= file("%s/etc/sysconfig/network" % SYSIMG_PATH, "w" )
411 network_file.write( "NETWORKING=yes\n" )
412 network_file.write( "HOSTNAME=%s.%s\n" % (hostname, domainname) )
413 if method == "static":
414 network_file.write( "GATEWAY=%s\n" % gateway )