X-Git-Url: http://git.onelab.eu/?a=blobdiff_plain;f=source%2Fsteps%2FUpdateNodeConfiguration.py;h=c6fe2d51c37b9523d0d3b9789e4f93011eb31ccb;hb=b428c6ae99d920a6d9f40228be5106398c3d5598;hp=f7830e55924984157371df951ace471c2f303deb;hpb=7ab7e9dd797333a9fdc8604554e16e192a32144d;p=bootmanager.git

diff --git a/source/steps/UpdateNodeConfiguration.py b/source/steps/UpdateNodeConfiguration.py
index f7830e5..c6fe2d5 100644
--- a/source/steps/UpdateNodeConfiguration.py
+++ b/source/steps/UpdateNodeConfiguration.py
@@ -1,11 +1,23 @@
+#!/usr/bin/python2 -u
+
+# Copyright (c) 2003 Intel Corporation
+# All rights reserved.
+#
+# Copyright (c) 2004-2006 The Trustees of Princeton University
+# All rights reserved.
+
+
 import os
 
-import InstallWriteConfig
-import InstallBuildVServer
 from Exceptions import *
 import utils
 
 
+# if this file is present in the vservers /etc directory,
+# the resolv.conf and hosts files will automatically be updated
+# by the bootmanager
+UPDATE_FILE_FLAG= "AUTO_UPDATE_NET_FILES"
+
 
 def Run( vars, log ):
     """
@@ -13,6 +25,9 @@ def Run( vars, log ):
     scripts based on what PLC has. Also, update any slivers on the machine
     incase their network files are out of date (primarily /etc/hosts).
 
+    Also write out /etc/planetlab/session, a random string that gets
+    a new value at every request of BootGetNodeDetails (ie, every boot)
+
     This step expects the root to be already mounted on SYSIMG_PATH.
     
     Except the following keys to be set:
@@ -57,18 +72,13 @@ def Run( vars, log ):
     if not ROOT_MOUNTED:
         raise BootManagerException, "Root isn't mounted on SYSIMG_PATH\n"
 
-
-    log.write( "Updating node network configuration\n" )
-    InstallWriteConfig.write_network_configuration( vars, log )
-
-
     log.write( "Updating vserver's /etc/hosts and /etc/resolv.conf files\n" )
 
     # create a list of the full directory paths of all the vserver images that
     # need to be updated.
     update_path_list= []
 
-    for base_dir in ('/vservers','/vservers/.vcache'):
+    for base_dir in ('/vservers','/vservers/.vref','/vservers/.vcache'):
         try:
             full_dir_path= "%s/%s" % (SYSIMG_PATH,base_dir)
             slices= os.listdir( full_dir_path )
@@ -96,6 +106,97 @@ def Run( vars, log ):
     # now, update /etc/hosts and /etc/resolv.conf in each dir if
     # the update flag is there
     for base_dir in update_path_list:
-        InstallBuildVServer.update_vserver_network_files(base_dir,vars,log)
-        
+        update_vserver_network_files(base_dir,vars,log)
+    
     return
+
+
+
+def update_vserver_network_files( vserver_dir, vars, log ):
+    """
+    Update the /etc/resolv.conf and /etc/hosts files in the specified
+    vserver directory. If the files do not exist, write them out. If they
+    do exist, rewrite them with new values if the file UPDATE_FILE_FLAG
+    exists it /etc. if this is called with the vserver-reference directory,
+    always update the network config files and create the UPDATE_FILE_FLAG.
+
+    This is currently called when setting up the initial vserver reference,
+    and later when nodes boot to update existing vserver images.
+
+    Expect the following variables from the store:
+    SYSIMG_PATH        the path where the system image will be mounted
+                       (always starts with TEMP_PATH)
+    NETWORK_SETTINGS   A dictionary of the values from the network
+                       configuration file
+    """
+
+    try:
+        SYSIMG_PATH= vars["SYSIMG_PATH"]
+        if SYSIMG_PATH == "":
+            raise ValueError, "SYSIMG_PATH"
+
+        NETWORK_SETTINGS= vars["NETWORK_SETTINGS"]
+        if NETWORK_SETTINGS == "":
+            raise ValueError, "NETWORK_SETTINGS"
+
+    except KeyError, var:
+        raise BootManagerException, "Missing variable in vars: %s\n" % var
+    except ValueError, var:
+        raise BootManagerException, "Variable in vars, shouldn't be: %s\n" % var
+
+    try:
+        ip= NETWORK_SETTINGS['ip']
+        method= NETWORK_SETTINGS['method']
+        hostname= NETWORK_SETTINGS['hostname']
+        domainname= NETWORK_SETTINGS['domainname']
+    except KeyError, var:
+        raise BootManagerException, \
+              "Missing network value %s in var NETWORK_SETTINGS\n" % var
+
+    try:
+        os.listdir(vserver_dir)
+    except OSError:
+        log.write( "Directory %s does not exist to write network conf in.\n" %
+                   vserver_dir )
+        return
+
+    file_path= "%s/etc/%s" % (vserver_dir,UPDATE_FILE_FLAG)
+    update_files= 0
+    if os.access(file_path,os.F_OK):
+        update_files= 1
+
+        
+    if '/.vref/' in vserver_dir or \
+       '/.vcache/' in vserver_dir or \
+       '/vserver-reference' in vserver_dir:
+        log.write( "Forcing update on vserver reference directory:\n%s\n" %
+                   vserver_dir )
+        utils.sysexec_noerr( "echo '%s' > %s/etc/%s" %
+                             (UPDATE_FILE_FLAG,vserver_dir,UPDATE_FILE_FLAG),
+                             log )
+        update_files= 1
+        
+
+    if update_files:
+        log.write( "Updating network files in %s.\n" % vserver_dir )
+        
+        file_path= "%s/etc/hosts" % vserver_dir
+        hosts_file= file(file_path, "w" )
+        hosts_file.write( "127.0.0.1       localhost\n" )
+        if method == "static":
+            hosts_file.write( "%s %s.%s\n" % (ip, hostname, domainname) )
+            hosts_file.close()
+            hosts_file= None
+
+
+        file_path= "%s/etc/resolv.conf" % vserver_dir
+        if method == "dhcp":
+            # copy the resolv.conf from the boot cd env.
+            utils.sysexec( "cp /etc/resolv.conf %s/etc" % vserver_dir, log )
+        else:
+            # copy the generated resolv.conf from the system image, since
+            # we generated it via static settings
+            utils.sysexec( "cp %s/etc/resolv.conf %s/etc" % \
+                           (SYSIMG_PATH,vserver_dir), log )
+            
+    return