move image-minimizer to lorax (#1082642)
This is used as a kickstart %post interpreter to streamline modifications to images. Also adds an example kickstart. This Obsoletes the old appliance-tools-minimizer and includes a Provide so that the transition will be seamless. (cherry picked from commit99f2ab9137) (cherry picked from commitb090a09dca) Resolves: rhbz#1082642
This commit is contained in:
Brian C. Lane
parent
253e953962
commit
e543fecde0
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@ -0,0 +1,104 @@
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# Minimal Disk Image -- Example of image-minimizer usage in %post
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#
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sshpw --username=root --plaintext randOmStrinGhERE
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# Firewall configuration
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firewall --enabled
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# Use network installation
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url --url="http://dl.fedoraproject.org/pub/fedora/linux/development/20/x86_64/os/"
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# Root password
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rootpw --plaintext removethispw
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# Network information
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network --bootproto=dhcp --onboot=on --activate
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# System authorization information
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auth --useshadow --enablemd5
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# System keyboard
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keyboard --xlayouts=us --vckeymap=us
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# System language
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lang en_US.UTF-8
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# SELinux configuration
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selinux --enforcing
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# Installation logging level
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logging --level=info
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# Shutdown after installation
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shutdown
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# System timezone
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timezone US/Eastern
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# System bootloader configuration
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bootloader --location=mbr
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# Clear the Master Boot Record
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zerombr
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# Partition clearing information
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clearpart --all
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# Disk partitioning information
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part / --fstype="ext4" --size=4000
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part swap --size=1000
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%post
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# Remove root password
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passwd -d root > /dev/null
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%end
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%packages
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@core
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kernel
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memtest86+
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grub2-efi
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grub2
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shim
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syslinux
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-dracut-config-rescue
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%end
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#
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# Use the image-minimizer to remove some packages and dirs
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#
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%post --interpreter=image-minimizer --nochroot
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# Kernel modules minimization
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# Drop many filesystems
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drop /lib/modules/*/kernel/fs
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keep /lib/modules/*/kernel/fs/ext*
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keep /lib/modules/*/kernel/fs/mbcache*
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keep /lib/modules/*/kernel/fs/squashfs
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keep /lib/modules/*/kernel/fs/jbd*
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keep /lib/modules/*/kernel/fs/btrfs
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keep /lib/modules/*/kernel/fs/cifs*
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keep /lib/modules/*/kernel/fs/fat
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keep /lib/modules/*/kernel/fs/nfs
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keep /lib/modules/*/kernel/fs/nfs_common
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keep /lib/modules/*/kernel/fs/fscache
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keep /lib/modules/*/kernel/fs/lockd
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keep /lib/modules/*/kernel/fs/nls/nls_utf8.ko
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keep /lib/modules/*/kernel/fs/configfs/configfs.ko
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keep /lib/modules/*/kernel/fs/fuse
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keep /lib/modules/*/kernel/fs/isofs
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# No sound
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drop /lib/modules/*/kernel/sound
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# Drop some unused rpms, without dropping dependencies
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droprpm checkpolicy
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droprpm dmraid-events
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droprpm gamin
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droprpm gnupg2
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droprpm linux-atm-libs
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droprpm make
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droprpm mtools
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droprpm mysql-libs
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droprpm perl
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droprpm perl-Module-Pluggable
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droprpm perl-Net-Telnet
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droprpm perl-PathTools
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droprpm perl-Pod-Escapes
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droprpm perl-Pod-Simple
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droprpm perl-Scalar-List-Utils
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droprpm perl-hivex
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droprpm perl-macros
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droprpm sgpio
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droprpm syslinux
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droprpm system-config-firewall-base
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droprpm usermode
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%end
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@ -62,6 +62,10 @@ Requires: grub2-tools
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Requires: openssh
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%endif
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# Moved image-minimizer tool to lorax
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Provides: appliance-tools-minimizer
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Obsoletes: appliance-tools-minimizer < 007.7-3
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%description
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Lorax is a tool for creating the anaconda install images.
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@ -87,6 +91,7 @@ make DESTDIR=$RPM_BUILD_ROOT mandir=%{_mandir} install
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%{_sbindir}/lorax
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%{_sbindir}/mkefiboot
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%{_sbindir}/livemedia-creator
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%{_bindir}/image-minimizer
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%dir %{_sysconfdir}/lorax
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%config(noreplace) %{_sysconfdir}/lorax/lorax.conf
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%dir %{_datadir}/lorax
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1
setup.py
1
setup.py
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@ -18,6 +18,7 @@ for root, dnames, fnames in os.walk("share"):
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# executable
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data_files.append(("/usr/sbin", ["src/sbin/lorax", "src/sbin/mkefiboot",
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"src/sbin/livemedia-creator"]))
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data_files.append(("/usr/bin", ["src/bin/image-minimizer"]))
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# get the version
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sys.path.insert(0, "src")
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@ -0,0 +1,198 @@
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#!/usr/bin/python
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#
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# image-minimizer: removes files and packages on the filesystem
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#
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# Copyright 2007-2010 Red Hat Inc.
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#
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# This program is free software; you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation; version 2 of the License.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU Library General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program; if not, write to the Free Software
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# Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
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import glob
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import optparse
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import os
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import shutil
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import sys
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import rpm
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class ImageMinimizer:
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filename = ''
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dryrun = False
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verbose = False
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prefix = None
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drops = set()
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visited = set()
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drops_rpm = set()
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ts = None
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def __init__(self, filename, root, dryrun, verbose):
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self.filename = filename
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self.prefix = root
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self.dryrun = dryrun
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self.verbose = verbose
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self.ts = None
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# Recursively adds all files and directories.
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# This is done becuase globbing does not allow
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# ** for arbitrary nesting.
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def add_directory(self, files, dirname):
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self.visited.add(dirname)
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for root, dirs, items in os.walk(dirname):
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for dir in dirs:
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self.visited.add(os.path.join(root, dir))
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for name in items:
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files.add(os.path.join(root, name))
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def add_pattern(self, files, pattern):
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globs = glob.glob(pattern)
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if self.verbose and len(globs) == 0:
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print "%s file not found" % pattern
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for g in globs:
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if os.path.isdir(g):
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self.add_directory(files, g)
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else:
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files.add(g)
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def add_pattern_rpm(self, rpms, pattern):
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if self.ts is None:
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if self.prefix is None:
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raise Exception ('Must specify installation root for droprpm/keeprpm')
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self.ts = rpm.TransactionSet(self.prefix)
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mi = self.ts.dbMatch()
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mi.pattern('name', rpm.RPMMIRE_GLOB, pattern)
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not_found = True
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for hdr in mi:
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not_found = False
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rpms.add(hdr['name'])
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if self.verbose and not_found:
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print "%s package not found" % pattern
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# Parses each line in the ifle
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def parse_line(self, line):
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command = ""
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pattern = ""
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tok = line.split(None,1)
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if len(tok) > 0:
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command = tok[0].lower()
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if len(tok) > 1:
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pattern = tok[1].strip()
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# Strip out all the comments and blank lines
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if not (command.startswith('#') or command==''):
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if command == 'keep':
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if self.prefix is not None :
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pattern = pattern.lstrip('/')
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pattern = os.path.join(self.prefix, pattern)
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keeps = set()
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self.add_pattern(keeps, pattern)
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self.drops.difference_update(keeps)
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keeps = None
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elif command == 'drop':
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if self.prefix is not None :
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pattern = pattern.lstrip('/')
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pattern = os.path.join(self.prefix, pattern)
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self.add_pattern(self.drops, pattern)
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elif command == 'keeprpm':
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keeps_rpm = set()
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self.add_pattern_rpm(keeps_rpm, pattern)
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self.drops_rpm.difference_update(keeps_rpm)
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keeps_rpm = None
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elif command == 'droprpm':
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self.add_pattern_rpm(self.drops_rpm, pattern)
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else:
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raise Exception ('Unknown Command: ' + command)
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def remove(self):
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for tag in sorted(self.drops, reverse=True):
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self.visited.add(os.path.split(tag)[0])
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if os.path.isdir(tag):
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self.visited.add(tag)
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else:
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if self.dryrun:
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print 'rm ' + tag
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else:
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if self.verbose:
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print 'rm ' + tag
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os.remove(tag)
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#remove all empty directory. Every 8k counts!
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for dir in sorted(self.visited, reverse=True):
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if len(os.listdir(dir)) == 0:
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if self.dryrun:
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print 'rm -rf ' + dir
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else:
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if self.verbose:
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print 'rm -rf ' + dir
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os.rmdir(dir)
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def remove_rpm(self):
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def runCallback(reason, amount, total, key, client_data):
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if self.verbose and reason == rpm.RPMCALLBACK_UNINST_STOP:
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print key, "erased"
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if len(self.drops_rpm) == 0:
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return
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for pkg in self.drops_rpm:
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if self.dryrun:
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print "erasing ", pkg
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else:
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self.ts.addErase(pkg)
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if not self.dryrun:
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# skip ts.check(), equivalent to --nodeps
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self.ts.run(runCallback, "erase")
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def filter(self):
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for line in (open(self.filename).readlines()):
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self.parse_line(line.strip())
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self.remove()
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self.remove_rpm()
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def parse_options():
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usage = "usage: %prog [options] filename"
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parser = optparse.OptionParser(usage=usage)
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parser.set_defaults(root=os.environ.get('INSTALL_ROOT', '/mnt/sysimage/'), dry_run=False)
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parser.add_option("-i", "--installroot", type="string", dest="root",
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help="Root path to prepend to all file patterns and installation root for RPM "
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"operations. Defaults to INSTALL_ROOT or /mnt/sysimage/")
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parser.add_option("--dryrun", action="store_true", dest="dryrun",
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help="If set, no filesystem changes are made.")
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parser.add_option("-v", "--verbose", action="store_true", dest="verbose",
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help="Display every action as it is performed.")
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(options, args) = parser.parse_args()
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if len(args) == 0:
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parser.print_help()
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sys.exit(1)
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return (options, args)
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if __name__ == "__main__":
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try:
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(options, args) = parse_options()
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filename = args[0]
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minimizer = ImageMinimizer(filename, options.root, options.dryrun,
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options.verbose)
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minimizer.filter()
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except SystemExit, e:
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sys.exit(e.code)
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except KeyboardInterrupt, e:
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print >> sys.stderr, _("Aborted at user request")
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except Exception, e:
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print e
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sys.exit(1)
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