source: ProjectBuilder/devel/rpmbootstrap/bin/rpmbootstrap@ 1128

Last change on this file since 1128 was 1128, checked in by Bruno Cornec, 13 years ago
  • pb_check_requirements now takes direct result from pb_conf_get_if and does more internal work, which ease caller.
File size: 15.4 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 $ENV{'PBV'}\n");
216my ($name,$ver,$darch) = split(/-/,$ENV{'PBV'});
217chomp($darch);
218my ($ddir, $dver, $dfam, $dtype, $dos, $pbsuf, $pbupd, $pbins) = pb_distro_init($name,$ver,$darch);
219
220#
221# Check target dir
222# Create if not existent and use default if none given
223#
224pb_env_init_pbrc(); # to get content of HOME/.pbrc
225my $vepath = shift @ARGV;
226
227#
228# Check for command requirements
229#
230my ($req,$opt) = pb_conf_get_if("oscmd","oscmdopt");
231pb_check_requirements($req,$opt,$appname);
232
233if (not defined $vepath) {
234 my ($vestdpath) = pb_conf_get_if("vepath");
235 $vepath = "$vestdpath->{'default'}/$ddir/$dver/$darch";
236}
237
238die pb_log(0,"No target-dir specified and no default vepath found in $ENV{'PBETC'}\n") if (not defined $vepath);
239
240pb_mkdir_p($vepath) if (! -d $vepath);
241
242#
243# Get the package list to download, store them in a cache directory
244#
245my ($rbsmindep,$rbsmirrorsrv) = pb_conf_get("rbsmindep","rbsmirrorsrv");
246my ($rbscachedir) = pb_conf_get_if("rbscachedir");
247my $pkgs = pb_distro_get_param($ddir,$dver,$darch,$rbsmindep);
248my $mirror = pb_distro_get_param($ddir,$dver,$darch,$rbsmirrorsrv);
249
250my $cachedir = "/var/cache/rpmbootstrap";
251$cachedir = $rbscachedir->{'default'} if (defined $rbscachedir->{'default'});
252
253# Point to the right subdir and create it if needed
254$cachedir .= "/$ddir-$dver-$darch";
255pb_mkdir_p($cachedir) if (! -d $cachedir);
256
257# Get the complete package name from the mirror
258#
259my $ua = LWP::UserAgent->new;
260$ua->timeout(10);
261$ua->env_proxy;
262
263pb_log(0,"Downloading package list from $mirror ...\n");
264my $response = $ua->get($mirror);
265if (! $response->is_success) {
266 if ($mirror =~ /i386/) {
267 # Some distro have an i586 or i686 mirror dir instead for i386
268 warn "Unable to download packages from $mirror for $ddir-$dver-$darch.";
269 $mirror =~ s|/i386/|/i586/|;
270 $response = $ua->get($mirror);
271 if (! $response->is_success) {
272 die "Unable to download packages from $mirror for $ddir-$dver-$darch";
273 }
274 }
275}
276pb_log(3,"Mirror $mirror gave answer: ".Dumper($response->dump(maxlength => 0))."\n");
277
278# Try to find where the repodata structure is for later usage
279my $repo = $mirror;
280my $found = 0;
281if ($pbins =~ /yum/) {
282 my $response1;
283 while ($found == 0) {
284 $response1 = $ua->get("$repo/repodata");
285 if (! $response1->is_success) {
286 $repo = dirname($repo);
287
288 pb_log(2,"REPO analyzed: $repo\n");
289 # There is a limit to the loop, when / is reached and nothing found
290 my ($scheme, $account, $host, $port, $path) = pb_get_uri($repo);
291 die "Unable to find the repodata structure of the mirror $mirror\nPlease check the URL or warn the dev team.\n" if ($path =~ /^[\/]+$/);
292
293 # / not reached, so looping
294 next;
295 } else {
296 # repodata found $repo is correct
297 $found = 1;
298 last;
299 }
300 }
301}
302
303# Manages architectures specificities
304my $parch = $darch;
305$parch = "i[3456]86" if ($darch eq "i386");
306
307# Get the list of packages and their URL in this hash
308my %url;
309foreach my $l (split(/\n/,$response->as_string())) {
310 # Find a href ref
311 if ($l =~ /<a href="(.*)">(.*)<\/a>/i) {
312 my $url = $1;
313 my $pkg = $1;
314 my $desc = $2;
315 pb_log(3,"Found desc URL $desc: ");
316 # find an rpm package ref name-ver-tag.arch.rpm
317 if ($pkg =~ /(.+)-([^-]+)-([^-]+)\.(noarch|$parch)\.rpm$/) {
318 pb_log(3,"package ($1 + $2 + $3 + $4)\n");
319 $url{$1} = "$mirror/$url";
320 } else {
321 pb_log(3,"not a package\n");
322 }
323 }
324}
325
326#
327# Prepare early the yum cache env for the VE in order to copy in it packages on the fly
328#
329my $oscachedir = "/tmp";
330my $osupdcachedir;
331my $osupdname = "";
332
333if ($pbins =~ /yum/) {
334 $oscachedir = "$vepath/var/cache/yum/core/packages/";
335 $osupdcachedir = "$vepath/var/cache/yum/updates-released/packages/";
336 $osupdname = "YUM";
337 # Recent Fedora release use a new yum cache dir
338 if (($ddir eq "fedora") && ($dver > 8)) {
339 $oscachedir = "$vepath/var/cache/yum/$darch/$dver/fedora/packages";
340 $osupdcachedir = "$vepath/var/cache/yum/$darch/$dver/updates/packages";
341 $osupdcachedir = "$vepath/var/cache/yum/updates-released/packages/";
342 }
343} elsif ($pbins =~ /zypper/) {
344 $oscachedir = "$vepath/var/cache/zypp/packages/opensuse/suse/$darch";
345 $osupdname = "Zypper";
346} elsif ($pbins =~ /urpmi/) {
347 $oscachedir = "$vepath/var/cache/urpmi/rpms";
348 $osupdname = "URPMI";
349}
350pb_log(1,"Setting up $osupdname cache in VE\n");
351pb_mkdir_p($oscachedir);
352pb_mkdir_p($osupdcachedir) if (defined $osupdcachedir);
353
354# For each package to process, get it, put it in the cache dir
355# and extract it in the target dir. If not asked to keep, remove it
356# Just download if asked so.
357
358my $warning = 0;
359my $lwpkg ="";
360foreach my $p (split(/,/,$pkgs)) {
361 pb_log(1,"Processing package $p ...\n");
362 # Just print packages names if asked so.
363 if (defined $url{$p}) {
364 if ($opts{'p'}) {
365 pb_log(0,"$url{$p}\n");
366 next;
367 } else {
368 # Now download if not already in cache
369 my $p1 = basename($url{$p});
370 if (! -f "$cachedir/$p1") {
371 pb_system("wget --quiet -O $cachedir/$p1 $url{$p}","Downloading package $p1 ...");
372 } else {
373 pb_log(1,"Package $p1 already in cache\n");
374 }
375
376 # End if download only
377 if ($opts{'d'}) {
378 next;
379 }
380
381 #
382 # Copy the cached .RPM files into the oscachedir directory, so that os doesn't need to download them again.
383 #
384 pb_log(1,"Link package into $oscachedir\n");
385 copy("$cachedir/$p1",$oscachedir) if (defined $oscachedir);
386 symlink("$oscachedir/$p1","$osupdcachedir/p1") if (defined $osupdcachedir);
387
388 # And extract it to the finale dir
389 pb_system("cd $vepath ; rpm2cpio $cachedir/$p1 | cpio -ivdum","Extracting package $p1 into $vepath");
390
391 # Remove cached package if not asked to keep
392 if (! $opts{'k'}) {
393 unlink("$cachedir/$p1");
394 }
395
396 }
397 } else {
398 pb_log(0,"WARNING: unable to find URL for $p\n");
399 $warning++;
400 $lwpkg .= " $p";
401 }
402}
403
404if ($warning ge 1) {
405 pb_log(0,"$warning WARNINGS found.\nMaybe you should review your package list for $ddir-$dver-$darch\nand remove$lwpkg\n");
406}
407
408# Stop here if we just print
409if ($opts{'p'}) {
410 exit(0);
411}
412
413# Now executes the VE finalization steps required for it to work correctly
414pb_log(0,"VE post configuration\n");
415
416# yum needs that distro-release package be installed, so force it
417if ($pbins =~ /yum/) {
418 foreach my $p1 (<$cachedir/($ddir|redhat)-release-*.rpm>) {
419 copy("$cachedir/$p1","$vepath/tmp");
420 pb_system("chroot $vepath rpm -ivh --force --nodeps /tmp/$p1","Forcing RPM installation of $p1");
421 unlink("$vepath/tmp/$p1");
422 }
423}
424#
425# Make sure there is a resolv.conf file present, such that DNS lookups succeed.
426#
427pb_log(1,"Creating resolv.conf\n");
428pb_mkdir_p("$vepath/etc");
429copy("/etc/resolv.conf","$vepath/etc/");
430
431#
432# BUGFIX:
433#
434if ((($ddir eq "centos") || ($ddir eq "rhel")) && ($dver eq "5")) {
435 pb_log(1,"BUGFIX for centos-5\n");
436 pb_mkdir_p("$vepath/usr/lib/python2.4/site-packages/urlgrabber.skx");
437 foreach my $i (<$vepath/usr/lib/python2.4/site-packages/urlgrabber/keepalive.*>) {
438 move($i,"$vepath/usr/lib/python2.4/site-packages/urlgrabber.skx/");
439 }
440}
441
442#
443# /proc needed
444#
445pb_mkdir_p("$vepath/proc");
446pb_system("mount -o bind /proc $vepath/proc","Mounting /proc");
447
448#
449# Some devices may be needed
450#
451pb_mkdir_p("$vepath/dev");
452chmod 0755,"$vepath/dev";
453pb_system("mknod -m 644 $vepath/dev/random c 1 8","Creating $vepath/dev/random") if (! -c "$vepath/dev/random");
454pb_system("mknod -m 644 $vepath/dev/urandom c 1 9","Creating $vepath/dev/urandom") if (! -c "$vepath/dev/urandom");
455pb_system("mknod -m 666 $vepath/dev/zero c 1 5","Creating $vepath/dev/zero") if (! -c "$vepath/dev/zero");
456
457my $minipkglist;
458
459pb_log(1,"Adapting $osupdname repository entries\n");
460if ($pbins =~ /yum/) {
461 #
462 # Force the architecture for yum
463 # The goal is to allow i386 chroot on x86_64
464 #
465 # FIX: Not sufficient to have yum working
466 # mirrorlist is not usable
467 # $releasever also needs to be filtered
468 # yum.conf as well
469 foreach my $i (<$vepath/etc/yum.repos.d/*>,"$vepath/etc/yum.conf") {
470 pb_system("sed -i -e 's/\$basearch/$darch/g' $i","","quiet");
471 pb_system("sed -i -e 's/\$releasever/$dver/g' $i","","quiet");
472 pb_system("sed -i -e 's/^mirrorlist/#mirrorlist/' $i","","quiet");
473 # rather use neutral separators here
474 pb_system("sed -i -e 's|^#baseurl.*\$|baseurl=$repo|' $i","","quiet");
475 }
476 $minipkglist = "ldconfig yum passwd vim-minimal dhclient authconfig";
477} elsif ($pbins =~ /zypper/) {
478 pb_mkdir_p("$vepath/etc/zypp/repos.d");
479 open(REPO,"> $vepath/etc/zypp/repos.d/$ddir-$dver") || die "Unable to create repo file";
480 my $baseurl = dirname(dirname($mirror));
481 # Setup the repo
482 print REPO << 'EOF';
483[opensuse]
484name=$ddir-$dver
485baseurl=$baseurl
486enabled=1
487gpgcheck=1
488
489EOF
490 close(REPO);
491 $minipkglist = "zypper vim-minimal dhclient";
492 # Bootstraping zypper
493 if ($dver eq "10.2") {
494 pb_system("chroot $vepath /bin/bash -c \"yes | /usr/bin/zypper sa $baseurl $ddir-$dver\"","Bootstrapping Zypper");
495 }
496} elsif ($pbins =~ /urpmi/) {
497 # Setup the repo
498 my $baseurl = dirname(dirname(dirname($mirror)));
499 pb_system("chroot $vepath /bin/bash -c \"urpmi.addmedia --distrib $baseurl\"","Bootstrapping URPMI");
500 $minipkglist = "ldconfig urpmi passwd vim-minimal dhcp-client";
501}
502
503#
504# Run "install the necessary modules".
505# No need for sudo here
506#
507$pbins =~ s/sudo//g;
508pb_system("chroot $vepath /bin/bash -c \"$pbins $minipkglist \"","Bootstrapping OS by running $pbins $minipkglist");
509
510#
511# make 'passwd' work.
512#
513pb_log(1,"Authfix\n");
514pb_system("chroot $vepath /bin/bash -c \"if [ -x /usr/bin/authconfig ]; then /usr/bin/authconfig --enableshadow --update; fi\"","Calling authconfig");
515
516# Installed additional packages we were asked to
517if (defined $opts{'a'}) {
518 $opts{'a'} =~ s/,/ /g;
519 pb_system("chroot $vepath /bin/bash -c \"$pbins $opts{'a'} \"","Adding packages to OS by running $pbins $opts{'a'}");
520}
521
522#
523# Clean up
524#
525pb_log(1,"Cleaning up\n");
526if ($pbins =~ /yum/) {
527 pb_system("chroot $vepath /usr/bin/yum clean all","Cleaning yum");
528}
529pb_system("umount $vepath/proc","Unmounting /proc");
530find(\&unlink_old_conf, $vepath);
531
532# Add additional packages if asked for
533
534# Executes post-install step if asked for
535if ($opts{'s'}) {
536 pb_system("$opts{'s'} $vepath","Executing the post-install script: $opts{'s'} $vepath");
537}
538
539# Function for File::Find
540sub unlink_old_conf {
541
542 unlink($_) if ($_ =~ /\.rpmorig$/);
543 unlink($_) if ($_ =~ /\.rpmnew$/);
544}
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