Globus2 packaging

1
Globus2 packaging

• Motivation for changes
• Modules
• Metadata
• Comments on Globus2 alpha2
• Automatic glpkg2rpm script
• Future work

Andrew McNab - Manchester HEP - 2 July 2001
2
Motivation for changes

• Modularisation
• avoid monolithic code release cycle
• allow distribution of subsets (eg client
  utilities only)
• Allow binary releases
• Simplify use of configuration files

Andrew McNab - Manchester HEP - 2 July 2001
3
Packaging modules

• Packages roughly correspond to major source
  directories in 1.1.3
• gpt and globus_package_manager provide (Perl)
  management tools
• Current alpha2 release also has globus_core,
  _common, _gaa, _ssl_utils, _gss_api, _gss_assist,
  and a virtual package for openssl

Andrew McNab - Manchester HEP - 2 July 2001
4
Metadata

• Each package includes metadata in XML to help
  automate and manage the build and installation
  processes
• a file list of binaries, scripts and
  configuration files to be included in this
  package.
• lists of dependencies compilation (ie headers),
  linking (libraries) and runtime.

Andrew McNab - Manchester HEP - 2 July 2001
5
Comments on alpha.2 (1)

• This was easier to get working than alpha.1
• Principally because all the optional Perl modules
  were included in the Globus distribution
• Needs openssl and a Globus 1.1.3 install (for a
  few scripts like globus-hostname)

Andrew McNab - Manchester HEP - 2 July 2001
6
Comments on alpha.2 (2)

• A few loose ends (eg script sources use _at_SH_at_
  which is not defined by default or in Globus
  configure scripts)
• No show-stoppers!
• Builds, and produces working binaries
• internal tests work
• do grid-proxy-init and grid-proxy-info gives
  sensible results back

Andrew McNab - Manchester HEP - 2 July 2001
7
Comments on alpha.2 (3)

• Current package contents easily convertible to
  binary installation formats (ie containing
  static files)
• But, alpha.2 doesnt come with configuration
  mechanisms after install,you have the binaries,
  scripts and only template config files
• The same configuration files are used as for
  1.1.3 - eg monolithic ca-signing-policy.conf
  and not an /etc/rc.d/init.d style solution.

Andrew McNab - Manchester HEP - 2 July 2001
8
Comments/requests to Globus

• The packaging metadata is very helpful (eg for
  making RPMs)
• The changes towards modularisation and binary
  releases are much appreciated
• Please avoid post-install scripts if possible
• Ideally configuration files would be modularised
• certificates.d, jobmanagers.d, ...

Andrew McNab - Manchester HEP - 2 July 2001
9
Making RPMs

• These will be needed when Globus2 goes into
  production, both in EU DataGrid and other grid
  projects (eg GridPP, BabarUK)
• Making working RPMs involves specifying exactly
  what steps are taken
• Makes it easier for other people to test their
  code against the alpha release, without being
  installation experts

Andrew McNab - Manchester HEP - 2 July 2001
10
Automating RPMs

• Since Globus now provides metadata, it should be
  possible to generate RPM spec files
  automatically.
• This reduces amount of work needed to maintain
  RPMs
• Even makes a Babar-style nightly build possible

Andrew McNab - Manchester HEP - 2 July 2001
11
Current strategy

• Manually write spec files for special cases
• gpt globus_package_manager
• globus_core
• virtual openssl
• For other packages, write a script to generate
  spec and RPM, starting from source code .tar.gz

Andrew McNab - Manchester HEP - 2 July 2001
12
glpkg2rpm script

• Give it a package name
• Extracts dependencies on other packages from
  source .tar.gz file
• Writes out RPM .spec file
• includes scripting to generate files list from
  Globus metadata
• Builds src bin RPMs using .spec

Andrew McNab - Manchester HEP - 2 July 2001
13
Current RPMs

• globus_pkg-2.0-1.i386.rpm
• globus_core-2.0-1.i386.rpm
• globus_common-2.0-1.i386.rpm
• globus_openssl-2.0-1.i386.rpm
• globus_gaa-2.0-1.i386.rpm
• globus_ssl_utils-2.0-1.i386.rpm
• globus_gssapi_gsi-2.0-1.i386.rpm
• globus_gss_assist-2.0-1.i386.rpm

Andrew McNab - Manchester HEP - 2 July 2001
14
Future work

• Feed this work back to Globus
• Include other alpha code that is in new packaging
  form (MDS2)
• Use Globus2 packages to build openssh-gsi RPM
  (current RPM was built using adhoc recipe)
• Track new alpha releases from Globus - especially
  imminent Globus2/1.1.3 hybrid release.

Andrew McNab - Manchester HEP - 2 July 2001