source: ProjectBuilder/devel/rpmbootstrap/bin/rpmbootstrap@ 1177

Last change on this file since 1177 was 1177, checked in by Bruno Cornec, 13 years ago

r4161@eelzbach2: bruno | 2011-02-06 21:07:30 +0100

  • Introduction of a new hash $pbos to manage all os related info through a single data structure. All functions reviewed accordingly. Externally transparent, hopefully, but much cleaner code as a consequence. VM/VE/RM remains to be tested.
File size: 15.7 KB
Line 
1#!/usr/bin/perl -w
2#
3# rpmbootstrap application, a debootstrap like for RPM distros
4#
5# $Id$
6#
7# Copyright B. Cornec 2010
8# Provided under the GPL v2
9
10# Syntax: see at end
11
12use strict 'vars';
13use Getopt::Long qw(:config auto_abbrev no_ignore_case);
14use Data::Dumper;
15use English;
16use LWP::UserAgent;
17use File::Basename;
18use File::Copy;
19use File::Find;
20use ProjectBuilder::Version;
21use ProjectBuilder::Base;
22use ProjectBuilder::Env;
23use ProjectBuilder::Conf;
24use ProjectBuilder::Distribution;
25
26# Global variables
27my %opts; # CLI Options
28
29=pod
30
31=head1 NAME
32
33rpmbootstrap - creates a chrooted RPM based distribution a la debootstrap, aka Virtual Environment (VE)
34
35=head1 DESCRIPTION
36
37rpmbootstrap creates a chroot environment (Virtual Environment or VE)
38with a minimal distribution in it, suited for building packages for example.
39It's very much like debootstrap but for RPM based distribution.
40It aims at supporting all distributions supported by project-builder.org
41(RHEL, RH, Fedora, OpeSUSE, SLES, Mandriva, ...)
42
43It is inspired by work done by Steve Kemp for rinse (http://www.steve.org.uk/),
44and similar to mock, but fully integrated with project-builder.org
45(which also supports rinse and mock).
46
47=head1 SYNOPSIS
48
49rpmbootstrap [-vhmqpdk][-s script][-i iso][-a pkg1[,pkg2,...]] distribution-version-arch [target-dir] [mirror [script]]
50
51rpmbootstrap [--verbose][--help][--man][--quiet][--print-rpms][--download-only]
52[--keep][--script script][--iso iso][--add pkg1,[pkg2,...]] distribution-version-arch [target-dir] [mirror [script]]
53
54=head1 OPTIONS
55
56=over 4
57
58=item B<-v|--verbose>
59
60Print a brief help message and exits.
61
62=item B<-h|--help>
63
64Print a brief help message and exits.
65
66=item B<--man>
67
68Prints the manual page and exits.
69
70=item B<-q|--quiet>
71
72Do not print any output.
73
74=item B<-p|--print-rpms>
75
76Print the packages to be installed, and exit.
77Note that a target directory must be specified so rpmbootstrap can determine
78which packages should be installed, and to resolve dependencies.
79The target directory will be deleted.
80
81=item B<-d|--download-only>
82
83Download packages, but don't perform installation.
84
85=item B<-k|--keep>
86
87Keep packages in the cache dir for later reuse. By default remove them.
88
89=item B<-s|--script script>
90
91Name of the script you want to execute on the related VEs after the installation.
92It is executed in host environment.
93You can use the chroot command to execute actions in the VE.
94
95=item B<-i|--iso iso_image>
96
97Name of the ISO image of the distribution you want to install on the related VE.
98
99=item B<-a|--add pkg1[,pkg2,...]>
100
101Additional packages to add from the distribution you want to install on the related VE
102at the end of the chroot build.
103
104=back
105
106=head1 ARGUMENTS
107
108=over 4
109
110=item B<distribution-version-arch>
111
112Full name of the distribution that needs to be installed in the VE. E.g. fedora-11-x86_64.
113
114=item B<target-dir>
115
116This is the target directory under which the VE will be created.
117Created on the fly if needed.
118If none is given use the default directory hosting VE for project-builder.org
119(Cf: vepath parameter in $HOME/.pbrc)
120
121=back
122
123=head1 EXAMPLE
124
125To setup a Fedora 12 distribution with an i386 architecture issue:
126
127rpmbootstrap fedora-12-i386 /tmp/fedora/12/i386
128
129=head1 WEB SITES
130
131The main Web site of the project is available at L<http://www.project-builder.org/>.
132Bug reports should be filled using the trac instance of the project at L<http://trac.project-builder.org/>.
133
134=head1 USER MAILING LIST
135
136Cf: L<http://www.mondorescue.org/sympa/info/pb-announce> for announces and
137L<http://www.mondorescue.org/sympa/info/pb-devel> for the development of the pb project.
138
139=head1 CONFIGURATION FILE
140
141Uses Project-Builder.org configuration file (/etc/pb/pb.conf or /usr/local/etc/pb/pb.conf)
142
143=head1 AUTHORS
144
145The Project-Builder.org team L<http://trac.project-builder.org/> lead by Bruno Cornec L<mailto:bruno@project-builder.org>.
146
147=head1 COPYRIGHT
148
149Project-Builder.org is distributed under the GPL v2.0 license
150described in the file C<COPYING> included with the distribution.
151
152=cut
153
154# ---------------------------------------------------------------------------
155
156my ($projectbuilderver,$projectbuilderrev) = pb_version_init();
157my $appname = "rpmbootstrap";
158$ENV{'PBPROJ'} = $appname;
159
160# Initialize the syntax string
161
162pb_syntax_init("$appname Version $projectbuilderver-$projectbuilderrev\n");
163pb_temp_init();
164
165GetOptions("help|?|h" => \$opts{'h'},
166 "man|m" => \$opts{'man'},
167 "verbose|v+" => \$opts{'v'},
168 "quiet|q" => \$opts{'q'},
169 "log-files|l=s" => \$opts{'l'},
170 "script|s=s" => \$opts{'s'},
171 "print-rpms|p" => \$opts{'p'},
172 "download-only|d" => \$opts{'d'},
173 "keep|k" => \$opts{'k'},
174 "iso|i=s" => \$opts{'i'},
175 "add|a=s" => \$opts{'a'},
176 "version|V=s" => \$opts{'V'},
177) || pb_syntax(-1,0);
178
179if (defined $opts{'h'}) {
180 pb_syntax(0,1);
181}
182if (defined $opts{'man'}) {
183 pb_syntax(0,2);
184}
185if (defined $opts{'v'}) {
186 $pbdebug = $opts{'v'};
187}
188if (defined $opts{'q'}) {
189 $pbdebug=-1;
190}
191if (defined $opts{'l'}) {
192 open(pbLOG,"> $opts{'l'}") || die "Unable to log to $opts{'l'}: $!";
193 $pbLOG = \*pbLOG;
194 $pbdebug = 0 if ($pbdebug == -1);
195}
196pb_log_init($pbdebug, $pbLOG);
197#pb_display_init("text","");
198
199#if (defined $opts{'s'}) {
200#$pbscript = $opts{'s'};
201#}
202#if (defined $opts{'i'}) {
203#$iso = $opts{'i'};
204#}
205
206# Get VE name
207$ENV{'PBV'} = shift @ARGV;
208die pb_syntax(-1,1) if (not defined $ENV{'PBV'});
209
210die "Needs to be run as root" if ($EFFECTIVE_USER_ID != 0);
211
212#
213# Initialize distribution info from pb conf file
214#
215pb_log(0,"Starting VE build for $ENV{'PBV'}\n");
216my $pbos = pb_distro_get_context($ENV{'PBV'});
217
218#
219# Check target dir
220# Create if not existent and use default if none given
221#
222pb_env_init_pbrc(); # to get content of HOME/.pbrc
223my $vepath = shift @ARGV;
224
225#
226# Check for command requirements
227#
228my ($req,$opt) = pb_conf_get_if("oscmd","oscmdopt");
229pb_check_requirements($req,$opt,$appname);
230
231if (not defined $vepath) {
232 my ($vestdpath) = pb_conf_get_if("vepath");
233 $vepath = "$vestdpath->{'default'}/$pbos->{'name'}/$pbos->{'version'}/$pbos->{'arch'}";
234}
235
236die pb_log(0,"No target-dir specified and no default vepath found in $ENV{'PBETC'}\n") if (not defined $vepath);
237
238pb_mkdir_p($vepath) if (! -d $vepath);
239
240#
241# Get the package list to download, store them in a cache directory
242#
243my ($rbscachedir) = pb_conf_get_if("rbscachedir");
244my ($pkgs,$mirror) = pb_distro_get_param($pbos->{'name'},$pbos->{'version'},$pbos->{'arch'},pb_conf_get("rbsmindep","rbsmirrorsrv"));
245
246my $cachedir = "/var/cache/rpmbootstrap";
247$cachedir = $rbscachedir->{'default'} if (defined $rbscachedir->{'default'});
248
249# Point to the right subdir and create it if needed
250$cachedir .= "/$pbos->{'name'}-$pbos->{'version'}-$pbos->{'arch'}";
251pb_mkdir_p($cachedir) if (! -d $cachedir);
252
253# Get the complete package name from the mirror
254#
255my $ua = LWP::UserAgent->new;
256$ua->timeout(10);
257$ua->env_proxy;
258
259pb_log(0,"Downloading package list from $mirror ...\n");
260my $response = $ua->get($mirror);
261if (! $response->is_success) {
262 if ($mirror =~ /i386/) {
263 # Some distro have an i586 or i686 mirror dir instead for i386
264 warn "Unable to download packages from $mirror for $pbos->{'name'}-$pbos->{'version'}-$pbos->{'arch'}.";
265 $mirror =~ s|/i386/|/i586/|;
266 $response = $ua->get($mirror);
267 if (! $response->is_success) {
268 die "Unable to download packages from $mirror for $pbos->{'name'}-$pbos->{'version'}-$pbos->{'arch'}";
269 }
270 }
271}
272pb_log(3,"Mirror $mirror gave answer: ".Dumper($response->dump(maxlength => 0))."\n");
273
274# Try to find where the repodata structure is for later usage
275my $repo = $mirror;
276my $found = 0;
277if ($pbos->{'install'} =~ /yum/) {
278 my $response1;
279 while ($found == 0) {
280 $response1 = $ua->get("$repo/repodata");
281 if (! $response1->is_success) {
282 $repo = dirname($repo);
283
284 pb_log(2,"REPO analyzed: $repo\n");
285 # There is a limit to the loop, when / is reached and nothing found
286 my ($scheme, $account, $host, $port, $path) = pb_get_uri($repo);
287 die "Unable to find the repodata structure of the mirror $mirror\nPlease check the URL or warn the dev team.\n" if ($path =~ /^[\/]+$/);
288
289 # / not reached, so looping
290 next;
291 } else {
292 # repodata found $repo is correct
293 $found = 1;
294 last;
295 }
296 }
297}
298
299# Manages architectures specificities
300my $parch = $pbos->{'arch'};
301$parch = "i[3456]86" if ($pbos->{'arch'} eq "i386");
302
303# Get the list of packages and their URL in this hash
304my %url;
305foreach my $l (split(/\n/,$response->as_string())) {
306 # Find a href ref
307 if ($l =~ /<a href="(.*)">(.*)<\/a>/i) {
308 my $url = $1;
309 my $pkg = $1;
310 my $desc = $2;
311 pb_log(3,"Found desc URL $desc: ");
312 # find an rpm package ref name-ver-tag.arch.rpm
313 if ($pkg =~ /(.+)-([^-]+)-([^-]+)\.(noarch|$parch)\.rpm$/) {
314 pb_log(3,"package ($1 + $2 + $3 + $4)\n");
315 $url{$1} = "$mirror/$url";
316 } else {
317 pb_log(3,"not a package\n");
318 }
319 }
320}
321
322#
323# Prepare early the yum cache env for the VE in order to copy in it packages on the fly
324#
325my $oscachedir = "/tmp";
326my $osupdcachedir;
327my $osupdname = "";
328
329if ($pbos->{'install'} =~ /yum/) {
330 $oscachedir = "$vepath/var/cache/yum/core/packages/";
331 $osupdcachedir = "$vepath/var/cache/yum/updates-released/packages/";
332 $osupdname = "YUM";
333 # Recent Fedora release use a new yum cache dir
334 if (($pbos->{'name'} eq "fedora") && ($pbos->{'version'} > 8)) {
335 $oscachedir = "$vepath/var/cache/yum/$pbos->{'arch'}/$pbos->{'version'}/fedora/packages";
336 $osupdcachedir = "$vepath/var/cache/yum/$pbos->{'arch'}/$pbos->{'version'}/updates/packages";
337 $osupdcachedir = "$vepath/var/cache/yum/updates-released/packages/";
338 }
339} elsif ($pbos->{'install'} =~ /zypper/) {
340 $oscachedir = "$vepath/var/cache/zypp/packages/opensuse/suse/$pbos->{'arch'}";
341 $osupdname = "Zypper";
342} elsif ($pbos->{'install'} =~ /urpmi/) {
343 $oscachedir = "$vepath/var/cache/urpmi/rpms";
344 $osupdname = "URPMI";
345}
346pb_log(1,"Setting up $osupdname cache in VE\n");
347pb_mkdir_p($oscachedir);
348pb_mkdir_p($osupdcachedir) if (defined $osupdcachedir);
349
350# For each package to process, get it, put it in the cache dir
351# and extract it in the target dir. If not asked to keep, remove it
352# Just download if asked so.
353
354my $warning = 0;
355my $lwpkg ="";
356foreach my $p (split(/,/,$pkgs)) {
357 pb_log(1,"Processing package $p ...\n");
358 # Just print packages names if asked so.
359 if (defined $url{$p}) {
360 if ($opts{'p'}) {
361 pb_log(0,"$url{$p}\n");
362 next;
363 } else {
364 # Now download if not already in cache
365 my $p1 = basename($url{$p});
366 if (! -f "$cachedir/$p1") {
367 pb_system("wget --quiet -O $cachedir/$p1 $url{$p}","Downloading package $p1 ...");
368 } else {
369 pb_log(1,"Package $p1 already in cache\n");
370 }
371
372 # End if download only
373 if ($opts{'d'}) {
374 next;
375 }
376
377 #
378 # Copy the cached .RPM files into the oscachedir directory, so that os doesn't need to download them again.
379 #
380 pb_log(1,"Link package into $oscachedir\n");
381 copy("$cachedir/$p1",$oscachedir) if (defined $oscachedir);
382 symlink("$oscachedir/$p1","$osupdcachedir/p1") if (defined $osupdcachedir);
383
384 # And extract it to the finale dir
385 pb_system("cd $vepath ; rpm2cpio $cachedir/$p1 | cpio -ivdum","Extracting package $p1 into $vepath");
386
387 # Remove cached package if not asked to keep
388 if (! $opts{'k'}) {
389 unlink("$cachedir/$p1");
390 }
391
392 }
393 } else {
394 pb_log(0,"WARNING: unable to find URL for $p\n");
395 $warning++;
396 $lwpkg .= " $p";
397 }
398}
399
400if ($warning ge 1) {
401pb_log(0,"$warning WARNINGS found.\nMaybe you should review your package list for $pbos->{'name'}-$pbos->{'version'}-$pbos->{'arch'}\nand remove$lwpkg\n");
402}
403
404# Stop here if we just print
405if ($opts{'p'}) {
406 exit(0);
407}
408
409# Now executes the VE finalization steps required for it to work correctly
410pb_log(0,"VE post configuration\n");
411
412# yum needs that distro-release package be installed, so force it
413if ($pbos->{'install'} =~ /yum/) {
414 my $ddir = $pbos->{'name'};
415 foreach my $p1 (<$cachedir/($ddir|redhat)-release-*.rpm>) {
416 copy("$cachedir/$p1","$vepath/tmp");
417 pb_system("chroot $vepath rpm -ivh --force --nodeps /tmp/$p1","Forcing RPM installation of $p1");
418 unlink("$vepath/tmp/$p1");
419 }
420}
421#
422# Make sure there is a resolv.conf file present, such that DNS lookups succeed.
423#
424pb_log(1,"Creating resolv.conf\n");
425pb_mkdir_p("$vepath/etc");
426copy("/etc/resolv.conf","$vepath/etc/");
427
428#
429# BUGFIX:
430#
431if ((($pbos->{'name'} eq "centos") || ($pbos->{'name'} eq "rhel")) && ($pbos->{'version'} eq "5")) {
432 pb_log(1,"BUGFIX for centos-5\n");
433 pb_mkdir_p("$vepath/usr/lib/python2.4/site-packages/urlgrabber.skx");
434 foreach my $i (<$vepath/usr/lib/python2.4/site-packages/urlgrabber/keepalive.*>) {
435 move($i,"$vepath/usr/lib/python2.4/site-packages/urlgrabber.skx/");
436 }
437}
438
439#
440# /proc needed
441#
442pb_mkdir_p("$vepath/proc");
443pb_system("mount -o bind /proc $vepath/proc","Mounting /proc");
444
445#
446# Some devices may be needed
447#
448pb_mkdir_p("$vepath/dev");
449chmod 0755,"$vepath/dev";
450pb_system("mknod -m 644 $vepath/dev/random c 1 8","Creating $vepath/dev/random") if (! -c "$vepath/dev/random");
451pb_system("mknod -m 644 $vepath/dev/urandom c 1 9","Creating $vepath/dev/urandom") if (! -c "$vepath/dev/urandom");
452pb_system("mknod -m 666 $vepath/dev/zero c 1 5","Creating $vepath/dev/zero") if (! -c "$vepath/dev/zero");
453
454my $minipkglist;
455
456pb_log(1,"Adapting $osupdname repository entries\n");
457if ($pbos->{'install'} =~ /yum/) {
458 #
459 # Force the architecture for yum
460 # The goal is to allow i386 chroot on x86_64
461 #
462 # FIX: Not sufficient to have yum working
463 # mirrorlist is not usable
464 # $releasever also needs to be filtered
465 # yum.conf as well
466 foreach my $i (<$vepath/etc/yum.repos.d/*>,"$vepath/etc/yum.conf") {
467 pb_system("sed -i -e 's/\$basearch/$pbos->{'arch'}/g' $i","","quiet");
468 pb_system("sed -i -e 's/\$releasever/$pbos->{'version'}/g' $i","","quiet");
469 pb_system("sed -i -e 's/^mirrorlist/#mirrorlist/' $i","","quiet");
470 # rather use neutral separators here
471 pb_system("sed -i -e 's|^#baseurl.*\$|baseurl=$repo|' $i","","quiet");
472 }
473 $minipkglist = "ldconfig yum passwd vim-minimal dhclient authconfig";
474} elsif ($pbos->{'install'} =~ /zypper/) {
475 pb_mkdir_p("$vepath/etc/zypp/repos.d");
476 open(REPO,"> $vepath/etc/zypp/repos.d/$pbos->{'name'}-$pbos->{'version'}") || die "Unable to create repo file";
477 my $baseurl = dirname(dirname($mirror));
478 # Setup the repo
479 print REPO << 'EOF';
480[opensuse]
481name=$pbos->{'name'}-$pbos->{'version'}
482baseurl=$baseurl
483enabled=1
484gpgcheck=1
485
486EOF
487 close(REPO);
488 $minipkglist = "zypper vim-minimal dhclient";
489 # Bootstraping zypper
490 if ($pbos->{'version'} eq "10.2") {
491 pb_system("chroot $vepath /bin/bash -c \"yes | /usr/bin/zypper sa $baseurl $pbos->{'name'}-$pbos->{'version'}\"","Bootstrapping Zypper");
492 }
493} elsif ($pbos->{'install'} =~ /urpmi/) {
494 # Setup the repo
495 my $baseurl = dirname(dirname(dirname($mirror)));
496 pb_system("chroot $vepath /bin/bash -c \"urpmi.addmedia --distrib $baseurl\"","Bootstrapping URPMI");
497 $minipkglist = "ldconfig urpmi passwd vim-minimal dhcp-client";
498}
499
500#
501# Run "install the necessary modules".
502# No need for sudo here
503#
504$pbos->{'install'} =~ s/sudo//g;
505pb_system("chroot $vepath /bin/bash -c \"$pbos->{'install'} $minipkglist \"","Bootstrapping OS by running $pbos->{'install'} $minipkglist");
506
507#
508# make 'passwd' work.
509#
510pb_log(1,"Authfix\n");
511pb_system("chroot $vepath /bin/bash -c \"if [ -x /usr/bin/authconfig ]; then /usr/bin/authconfig --enableshadow --update; fi\"","Calling authconfig");
512
513# Installed additional packages we were asked to
514if (defined $opts{'a'}) {
515 $opts{'a'} =~ s/,/ /g;
516 pb_system("chroot $vepath /bin/bash -c \"$pbos->{'install'} $opts{'a'} \"","Adding packages to OS by running $pbos->{'install'} $opts{'a'}");
517}
518
519#
520# Clean up
521#
522pb_log(1,"Cleaning up\n");
523if ($pbos->{'install'} =~ /yum/) {
524 pb_system("chroot $vepath /usr/bin/yum clean all","Cleaning yum");
525}
526pb_system("umount $vepath/proc","Unmounting /proc");
527find(\&unlink_old_conf, $vepath);
528
529# Add additional packages if asked for
530
531# Executes post-install step if asked for
532if ($opts{'s'}) {
533 pb_system("$opts{'s'} $vepath","Executing the post-install script: $opts{'s'} $vepath");
534}
535
536# Function for File::Find
537sub unlink_old_conf {
538
539 unlink($_) if ($_ =~ /\.rpmorig$/);
540 unlink($_) if ($_ =~ /\.rpmnew$/);
541}
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