Date: Sun, 16 Nov 2003 23:35:15 -0500 From: Ken Smith <kensmith@cse.Buffalo.EDU> To: Joe Marcus Clarke <marcus@FreeBSD.org> Cc: doc@FreeBSD.org Subject: Re: DocBook help Message-ID: <20031117043515.GA16285@electra.cse.Buffalo.EDU> In-Reply-To: <1069007319.3752.11.camel@shumai.marcuscom.com> References: <1068365672.64416.2.camel@shumai.marcuscom.com> <20031109031918.40437858.trhodes@FreeBSD.org> <1068366438.64416.8.camel@shumai.marcuscom.com> <20031116173729.GC5895@electra.cse.Buffalo.EDU> <1069007319.3752.11.camel@shumai.marcuscom.com>
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On Sun, Nov 16, 2003 at 01:28:39PM -0500, Joe Marcus Clarke wrote: > Yeah, that's fine. Thanks! How's this? It's viewable in a very stripped-down web version at: http://www.cse.buffalo.edu/~kensmith/FreeBSD/cluster_article.html if you want to see it. Lost of the support files are missing so it will look much better once integrated on the main web site. <!DOCTYPE article PUBLIC "-//FreeBSD//DTD DocBook V4.1-Based Extension//EN" [ <!ENTITY % man PUBLIC "-//FreeBSD//ENTITIES DocBook Manual Page Entities//EN"> %man; <!ENTITY % freebsd PUBLIC "-//FreeBSD//ENTITIES DocBook Miscellaneous FreeBSD Entities//EN"> %freebsd; <!ENTITY % authors PUBLIC "-//FreeBSD//ENTITIES DocBook Author Entities//EN"> %authors; <!ENTITY % teams PUBLIC "-//FreeBSD//ENTITIES DocBook Team Entities//EN"> %teams; <!ENTITY % mailing-lists PUBLIC "-//FreeBSD//ENTITIES DocBook Mailing List Entities//EN"> %mailing-lists; <!ENTITY % trademarks PUBLIC "-//FreeBSD//ENTITIES DocBook Trademark Entities//EN"> %trademarks; ]> <article> <articleinfo> <title>Package Building Procedures</title> <authorgroup> <corpauthor>The &os; Ports Management Team</corpauthor> </authorgroup> <pubdate>$FreeBSD$</pubdate> <copyright> <year>2003</year> <holder role="mailto:portmgr@FreeBSD.org">The &os; Ports Management Team</holder> </copyright> <legalnotice id="trademarks" role="trademarks"> &tm-attrib.freebsd; &tm-attrib.general; </legalnotice> </articleinfo> <sect1 id="intro"> <title>Introduction and Conventions</title> <para>In order to provide pre-compiled binaries of third-party applications for &os;, the ports collection is regularly built on one of the <quote>Package Building Clusters.</quote> Currently, there are two such clusters: <hostid role="fqdn">bento.FreeBSD.org</hostid> and <hostid role="fqdn">dosirak.kr.freebsd.org</hostid>.</para> <para>Most of the package building magic occurs under the <filename>/var/portbuild</filename> directory. Unless otherwise specified, all paths will be relative to this location. <replaceable>${arch}</replaceable> will be used to specify one of the package architectures (&i386;, alpha, &sparc64;, ia64, and amd64), and <replaceable>${branch}</replaceable> will be used to specify the build branch (4, 5, 4-exp). </para> </sect1> <sect1 id="management"> <title>Build Client Management</title> <para>The &i386; and alpha clients currently netboot from <hostid>bento</hostid>; the others are self-hosted. In all cases they set themselves up at boot-time to prepare to build packages.</para> <para>The <username>ports-<replaceable>${arch}</replaceable></username> user can &man.ssh.1; as <username>root</username> onto each of the <replaceable>${arch}</replaceable> nodes.</para> <para>The <command>scripts/allgohans</command> script can be used to run a command on all of the <replaceable>${arch}</replaceable> clients [<literal>XXX</literal> Currently slightly broken - it suspends itself after dispatching the command to each client].</para> <para>The <command>scripts/checkmachines</command> script is used to monitor the load on all the nodes of the build cluster, and schedule which nodes build which ports. This script is not very robust, and has a tendency to die. It is best to start up this script on the build master (either <hostid>bento</hostid> or <hostid>dosirak</hostid>) after boot time using a &man.while.1; loop. </para> </sect1> <sect1 id="setup"> <title>Chroot Build Environment Setup</title> <para>Package builds are performed in a <literal>chroot</literal> populated by the <filename>portbuild</filename> script using the <filename><replaceable>${arch}</replaceable>/<replaceable>${branch}</replaceable>/tarballs/bindist.tar</filename> file. This tarball is created by the <command>mkbindist</command> script which reads the <filename><replaceable>${arch}</replaceable>/<replaceable>${branch}</replaceable>/mkbindist.conf</filename> file to decide how to create the tarball.</para> <para>The script should be run as <username>root</username> with the following command:</para> <screen>/var/portbuild&prompt.root; <userinput>scripts/mkbindist <replaceable>${arch}</replaceable> <replaceable>${branch}</replaceable></userinput></screen> <para>If <literal>ftp=1</literal> in <filename>mkbindist.conf</filename> then a prebuilt release will be downloaded via FTP from the location specified by ftp://<replaceable>${ftpserver}</replaceable>/<replaceable>${ftpurl}</replaceable>/<replaceable>${rel}</replaceable>. If <literal>ftp=0</literal> and <literal>buildworld=1</literal> then <command>mkbindist</command> will call <command>makeworld</command> to build a new world [<literal>XXX</literal> This is currently broken].</para> <para>If both <literal>ftp=0</literal> and <literal>buildworld=0</literal> then <command>mkbindist</command> will use the pre-existing contents of <replaceable>${worlddir}</replaceable> to create <filename>bindist.tar</filename>. In practice this means that you must have already installed a world in ${worlddir}, which is typically installed with the <command>makeworld</command> script:</para> <screen>/var/portbuild&prompt.root; <userinput>scripts/makeworld <replaceable>${arch}</replaceable> <replaceable>${branch}</replaceable> [-nocvs]</userinput></screen> <para>This command builds a world from the <filename><replaceable>${arch}</replaceable>/<replaceable>${branch}</replaceable>/src</filename> tree and installs it into <replaceable>${worlddir}</replaceable>. The tree will be updated first unless <literal>-nocvs</literal> is specified.</para> <para>The <filename>bindist.tar</filename> file is extracted onto each client at client boot time, and at the start of each pass of the <command>dopackages</command> script. </para> </sect1> <sect1 id="starting"> <title>Starting the Build</title> <para>The <filename>scripts/dopackages*</filename> scripts are used to perform the builds. Most useful are:</para> <itemizedlist> <listitem> <para><command>dopackages.steve3</command> - Perform a 5.x build </para> </listitem> <listitem> <para><command>dopackages.steve4</command> - Perform a 4.x build </para> </listitem> <listitem> <para><command>dopackages.steve4-exp</command> - Perform a 4.x build with experimental patches (4-exp branch) </para> </listitem> </itemizedlist> <para>These are wrappers around <command>dopackages</command>, and take a number of arguments. For example:</para> <screen><command>dopackages.steve3 <replaceable>${arch}</replaceable> <literal>[-options]</literal></command></screen> <para><literal>[-options]</literal> may be zero or more of the following:</para> <itemizedlist> <listitem> <para><literal>-nofinish</literal> - Do not perform post-processing once the build is complete. Useful if you expect that the build will need to be restarted once it finishes. This option should always be used for normal build operations. </para> </listitem> <listitem> <para><literal>-finish</literal> - Perform post-processing only. </para> </listitem> <listitem> <para><literal>-restart</literal> - Restart an interrupted (or non-<literal>finish</literal>ed) build from the beginning. Ports that failed on the previous build will be rebuilt. </para> </listitem> <listitem> <para><literal>-continue</literal> - Restart an interrupted (or non-<literal>finish</literal>ed) build. Will not rebuild ports that failed on the previous build. </para> </listitem> <listitem> <para><literal>-cdrom</literal> - This package build is intended to end up on a CD-ROM, so <literal>NO_CDROM</literal> packages and distfiles should be deleted in post-processing. </para> </listitem> <listitem> <para><literal>-nobuild</literal> - Perform all the preprocessing steps, but do not actually do the package build. </para> </listitem> <listitem> <para><literal>-noindex</literal> - Do not rebuild <filename>INDEX</filename> during preprocessing. </para> </listitem> <listitem> <para><literal>-noduds</literal> - Do not rebuild the <filename>duds</filename> file (ports that are never built, e.g. those marked <literal>IGNORE</literal>, <literal>NO_PACKAGE</literal>, etc.) during preprocessing. </para> </listitem> <listitem> <para><literal>-nocvs</literal> - Do not <command>cvs update</command> the <literal>src</literal> tree during preprocessing. </para> </listitem> <listitem> <para><literal>-noportscvs</literal> - Do not <command>cvs update</command> the <literal>ports</literal> tree during preprocessing. </para> </listitem> <listitem> <para><literal>-norestr</literal> - Do not attempt to build <literal>RESTRICTED</literal> ports. </para> </listitem> <listitem> <para><literal>-plistcheck</literal> - Make it fatal for ports to leave behind files after deinstallation. </para> </listitem> <listitem> <para><literal>-distfiles</literal> - Collect distfiles that pass <command>make checksum</command> for later uploading to <hostid>ftp-master</hostid>. Use this sparingly because it takes up a lot of disk space. You should remove the distfiles once they have been transfered to <hostid>ftp-master</hostid>. </para> </listitem> <listitem> <para><literal>-fetch-original</literal> - Fetch the distfile from the original <literal>MASTER_SITES</literal> rather than <hostid>ftp-master</hostid>. </para> </listitem> </itemizedlist> <para>Make sure the <replaceable>${arch}</replaceable> build is run as the ports-<replaceable>${arch}</replaceable> user or it will complain loudly.</para> <note><para>The actual package build itself occurs in two identical phases. The reason for this is that sometimes transient NFS failures may halt the build. Doing things in two phases is a workaround for these types of problems.</para></note> <para>Be careful that <filename>ports/Makefile</filename> does not specify any empty subdirectories. This is especially important if you are doing a 4-exp build. If the build process encounters an empty subdirectory, both package build phases will stop short, and an error similar to the following will be written to <filename><replaceable>${arch}</replaceable>/<replaceable>${branch}</replaceable>/make.[0|1]</filename>: </para> <screen><literal>don't know how to make dns-all(continuing)</literal></screen> <para>To correct this problem, simply comment out or remove the <literal>SUBDIR</literal> entries that point to empty subdirectories. After doing this, you can restart the build by running the proper <command>dopackages</command> command with the <literal>-restart</literal> option. </para> </sect1> <sect1 id="anatomy"> <title>Anatomy of a Build</title> <para>A full build without any <literal>-no</literal> options performs the following operations in the specified order:</para> <orderedlist> <listitem> <para>A CVS checkout of the current <literal>ports</literal> tree [*] </para> </listitem> <listitem> <para>A CVS checkout of the running branch's <literal>doc</literal> tree [*] </para> </listitem> <listitem> <para>A CVS checkout of the running branch's <literal>src</literal> tree [*] </para> </listitem> <listitem> <para>Checks which ports do not have a <literal>SUBDIR</literal> entry in their respective category's <filename>Makefile</filename> [*] </para> </listitem> <listitem> <para>Creates the <filename>duds</filename> file, which is a list of ports not to build [*] [+] </para> </listitem> <listitem> <para>Generates a fresh <filename>INDEX</filename> file [*] [+] </para> </listitem> <listitem> <para>Sets up the nodes that will be used in the build [*] [+] </para> </listitem> <listitem> <para>Builds a list of restricted ports [*] [+]</para> </listitem> <listitem> <para>Builds packages (phase 1) [++]</para> </listitem> <listitem> <para>Performs another node setup [+]</para> </listitem> <listitem> <para>Builds packages (phase 2) [++]</para> </listitem> </orderedlist> <para>[*] Status of these steps can be found in <filename><replaceable>${arch}</replaceable>/<replaceable>${branch}</replaceable>/build.log</filename> as well as on stderr of the tty running the <command>dopackages</command> command.</para> <para>[+] If any of these steps fail, the build will stop cold in its tracks.</para> <para>[++] Status of these steps can be found in <filename><replaceable>${arch}</replaceable>/<replaceable>${branch}</replaceable>/make.[0|1]</filename>, where <filename>make.0</filename> is the log file used by phase 1 of the package build and <filename>make.1</filename> is the log file used by phase 2. Individual ports will write their build logs to <filename><replaceable>${arch}</replaceable>/<replaceable>${branch}</replaceable>/logs</filename> and their error logs to <filename><replaceable>${arch}</replaceable>/<replaceable>${branch}</replaceable>/errors</filename>. </para> </sect1> <sect1 id="interrupting"> <title>Interrupting a Build</title> <para>Sending a <literal>HUP</literal> signal to the <command>dopackages*</command> shell processes or to any <command>make</command> process invoked by those scripts is usually sufficient to interrupt the build. The package builds dispatched by <command>make</command> to the client machines will clean themselves up after a few minutes (check with <command>ps x</command> until they all go away).</para> <para>Remove the <filename><replaceable>${arch}</replaceable>/lock</filename> file before trying to restart the build. </para> </sect1> <sect1 id="monitoring"> <title>Monitoring the Build</title> <para>The <command>scripts/stats<replaceable>${branch}</replaceable></command> command counts the number of packages currently built.</para> <para>Running <command>cat /var/portbuild/*/loads/*</command> shows the client loads and number of concurrent builds in progress.</para> <para>Running <command>tail -f <replaceable>${arch}</replaceable>/<replaceable>${branch}</replaceable>/build.log</command> shows the overall build progress.</para> <para>If a build is failing, and it is immediately obvious from the port build log as to why, you can preserve the <literal>WRKDIR</literal> for further analysis. To do this, touch a file called <filename>.keep</filename> in the port's directory. The next time the cluster tries to build this port, it will tar, compress, and copy the <literal>WRKDIR</literal> to <filename><replaceable>${arch}</replaceable>/<replaceable>${branch}</replaceable>/wrkdirs</filename>. </para> <para>Keep an eye on &man.df.1; output. If the <filename>/var/portbuild</filename> file system becomes full then <trademark>Bad Things</trademark> happen. </para> </sect1> <sect1 id="release"> <title>Release Builds</title> <para>When building packages for a release, it may be necessary to manually update the <literal>ports</literal> and <literal>src</literal> trees to the release tag and use <literal>-nocvs</literal> and <literal>-noportscvs</literal>.</para> <para>To build package sets intended for use on a CD-ROM, use the <literal>-cdrom</literal> option to <command>dopackages</command>.</para> <para>Assuming disk space is available on the cluster, use <literal>-distfiles</literal> to collect distfiles.</para> <note><para>You must run the initial build with <literal>-distfiles</literal> to collect all the fetched distfiles.</para></note> <para>After the initial build completes, restart the build with <literal>-restart -distfiles -fetch-original</literal> to collect updated distfiles as well. Then, once the build is post-processed, take an inventory of the list of files fetched:</para> <screen>&prompt.user; <userinput>cd <replaceable>${arch}</replaceable>/<replaceable>${branch}</replaceable></userinput> &prompt.user; <userinput>find distfiles > <replaceable>${release}</replaceable>-distfiles</userinput></screen> <para>This inventory file typically lives in <filename>i386/<replaceable>${branch}</replaceable></filename> on the cluster master.</para> <para>This is useful to aid in periodically cleaning out the distfiles from <hostid>ftp-master</hostid>. When space gets tight, distfiles from recent releases can be kept while others can be thrown away.</para> <para>Once the distfiles have been uploaded (see below), the final release package set must be created. Just to be on the safe side, run the <filename><replaceable>${arch}</replaceable>/<replaceable>${branch}</replaceable>/cdrom.sh</filename> script by hand to make sure all the CD-ROM restricted packages and distfiles have been pruned. Then, copy the <filename><replaceable>${arch}</replaceable>/<replaceable>${branch}</replaceable>/packages</filename> directory to <filename><replaceable>${arch}</replaceable>/<replaceable>${branch}</replaceable>/packages-<replaceable>${release}</replaceable></filename>. Once the packages are safely moved off, contact the &a.re; and inform them of the release package location.</para> <para>Remember to coordinate with the &a.re; about the timing and status of the release builds. </para> </sect1> <sect1 id="uploading"> <title>Uploading Packages</title> <para>Once a build has completed, packages and/or distfiles can be transferred to <hostid>ftp-master</hostid> for propagation to the FTP mirror network. If the build was run with <literal>-nofinish</literal>, then make sure to follow up with <command>dopackages -finish</command> to post-process the packages (removes <literal>RESTRICTED</literal> and <literal>NO_CDROM</literal> packages where appropriate, prunes packages not listed in <filename>INDEX</filename>, removes from <filename>INDEX</filename> references to packages not built, and generates a <filename>CHECKSUM.MD5</filename> summary); and distfiles (moves them from the temporary <filename>distfiles/.pbtmp</filename> directory into <filename>distfiles/</filename> and removes <literal>RESTRICTED</literal> and <literal>NO_CDROM</literal> distfiles).</para> <para>It is usually a good idea to run the <command>restricted.sh</command> and/or <command>cdrom.sh</command> scripts by hand after <command>dopackages</command> finishes just to be safe. Run the <command>restricted.sh</command> script before uploading to <hostid>ftp-master</hostid>, then run <command>cdrom.sh</command> before preparing the final package set for a release.</para> <para>Packages can be copied to the staging area on <hostid>ftp-master</hostid> with something like the following:</para> <screen>&prompt.root; <userinput>cd /var/portbuild/<replaceable>${arch}</replaceable>/<replaceable>${branch}</replaceable></userinput> &prompt.root; <userinput>tar cfv - packages/ | ssh portmgr@ftp-master tar xfC - w/ports/<replaceable>${arch}</replaceable>/tmp/<replaceable>${branch}</replaceable></userinput></screen> <para>Then log into <hostid>ftp-master</hostid>, verify that the package set was transferred successfully, remove the package set that the new package set is to replace (in <filename>~/w/ports/<replaceable>${arch}</replaceable></filename>), and move the new set into place.</para> <note><para>Some of the directories on <hostid>ftp-master</hostid> are, in fact, symlinks. Be sure you move the new packages directory over the <emphasis>real</emphasis> destination directory, and not one of the symlinks that points to it.</para></note> <para>Distfiles can be transferred via <command>rsync</command>:</para> <screen>&prompt.root; <userinput>cd /var/portbuild/<replaceable>${arch}</replaceable>/<replaceable>${branch}</replaceable></userinput> &prompt.root; <userinput>rsync -r -v -l -p -c -n distfiles/ portmgr@ftp-master:w/ports/distfiles/ | tee log</userinput></screen> <para><emphasis>ALWAYS</emphasis> use <literal>-n</literal> first with <command>rsync</command> and check the output to make sure it is sane. If it looks good, re-run the <command>rsync</command> without the <literal>-n</literal> option. </para> </sect1> </article> -- Ken Smith - From there to here, from here to | kensmith@cse.buffalo.edu there, funny things are everywhere. | - Theodore Geisel |
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