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7 Updatenode_support_to_run_mypostscript_sections
ligc edited this page 2015-07-30 04:22:49 -04:00
Table of Contents

Table of Contents

{{:Design Warning}}

Overview

There is a requirement to allow updatenode to run postscripts/postbootscripts that are defined in the osimage table and not automatically run the xCAT default postscripts and/or the postscripts defined for the node in the postscripts table. Note this is being implemented in 2.8 as an internal function. The next sections list the changes required.

Postage.pm

Postage.pm will be changed to build a new mypostscript file with multiple sections based on where they were defined in the database. The changes start at the line # postscripts-start-here in the current file.

          .
          .
          .
#postscripts-start-here 
#defaults-postscripts-start-here    
run_ps postscript1
       .
#defaults-postscripts-end-here
#osimage-postscripts-start-here
run_ps postscript2
       .
#osimage-postscripts-end-here
#node-postscripts-start-here
run_ps postscript3
       .
#node-postscripts-end-here
#postscripts-end-here 
#postbootscripts-start-here  
#defaults-postbootscripts-start-here
run_ps postbootscript1
       .
#defaults-postbootscripts-end-here
#osimage-postbootscripts-start-here
run_ps postbootscript2
       .
#osimage-postbootscripts-end-here
#node-postbootscripts-start-here
run_ps postbootscript3
        .
#node-postbootscripts-end-here
#postbootscripts-end-here

updatenode

updatenode will take on the -P flag, as if a postscript name the title a section of the new mypostscript file. It will pass this section name to xcatdsklspost which will build a correct mypostscript file containing only the postscript from the section designated. Only one sections can be selected at a time. Note the long name is to try and not conflict with any previously defined postscripts, created by users.

To run all the postscripts, all sections

updatenode <noderange> -P postscripts-start-here

To run all the postbootscripts, all sections

updatenode <noderange> -P postbootscripts-start-here

To run only the postbootscripts defined in the osimage postbootscripts attribute

updatenode <noderange> -P osimage-postbootscripts-start-here

xcatdsklspost

xcatdsklspost will be change to recognize the new postscripts/postbootscripts name in the above section. Based on that name modify the mypostscript file created by Postage.pm and create a new mypostscript file with only the required postscript/postbootscripts.

News

History

  • Oct 22, 2010: xCAT 2.5 released.
  • Apr 30, 2010: xCAT 2.4 is released.
  • Oct 31, 2009: xCAT 2.3 released.
    xCAT's 10 year anniversary!
  • Apr 16, 2009: xCAT 2.2 released.
  • Oct 31, 2008: xCAT 2.1 released.
  • Sep 12, 2008: Support for xCAT 2
    can now be purchased!
  • June 9, 2008: xCAT breaths life into
    (at the time) the fastest
    supercomputer on the planet
  • May 30, 2008: xCAT 2.0 for Linux
    officially released!
  • Oct 31, 2007: IBM open sources
    xCAT 2.0 to allow collaboration
    among all of the xCAT users.
  • Oct 31, 1999: xCAT 1.0 is born!
    xCAT started out as a project in
    IBM developed by Egan Ford. It
    was quickly adopted by customers
    and IBM manufacturing sites to
    rapidly deploy clusters.