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diff --git a/userContent/presentations/2017-08-07-DebConf17/index.html b/userContent/presentations/2017-08-07-DebConf17/index.html index a180da67..93eb2265 100644 --- a/userContent/presentations/2017-08-07-DebConf17/index.html +++ b/userContent/presentations/2017-08-07-DebConf17/index.html @@ -3,7 +3,7 @@ <head> <meta charset="utf-8"> - <title>jenkins.debian.net or what is Debian doing with all these resources</title> + <title>let's maintain jenkins.debian.org as a team</title> <meta name="apple-mobile-web-app-capable" content="yes"> <meta name="apple-mobile-web-app-status-bar-style" content="black-translucent"> @@ -72,14 +72,13 @@ torbrowser-launcher <div class="slides" style="text-align: left;"> <section data-background="images/debian_logo.png" data-background-size="10%" data-background-position="90% 10%"> <h2> - about <code>jenkins.debian.net</code> - or what Holger / Debian is doing with all these resources + let's maintain jenkins.debian.org as a team </h2> - <p>(Automating all the tests!)</p> <h4> <br> Holger Levsen <holger@debian.org> </h4> - <p><small>Profitbricks Office, 2016-11-30, Berlin, Germany</small></p> + <p><small>DebConf17, 2017-08-07, Montreal, Canada</small></p> </section> <section data-background="images/h01ger.png" data-background-size="15%" data-background-color="black"> @@ -89,8 +88,7 @@ torbrowser-launcher <li>Debian-Edu (Debian for Education), since 2003</li> <li>DebConf organizer, founded the DebConf video team in 2005</li> <li>Debian developer since 2007, <code>holger@debian.og</code></li> - <li>Freelancer since 2004, <code>holgerlevsen.de</code></li> - <li>Freelancer at Profitbricks from 2011-2013 and 2015</li> + <li>Freelancer since 2004</li> </ul> </section> @@ -154,23 +152,11 @@ torbrowser-launcher <li>Steven Chamberlain: kfreebsd</li> <li>Phil Hands: lvc</li> <li>Tomasz Nitecki: jenkins java support</li> - <li class="fragment">36 contributors to <code>jenkins.debian.net.git</code> in total</li> + <li class="fragment">36 contributors to <code>jenkins.debian.net.git</code> in total, also committers from Arch Linux, openSUSE, LEDE, coreboot, Guix, FreeBSD and NetBSD </li> </ul> </section> - <section data-background="images/debian.jpg" data-background-color="black"> - <h2> - A quick detour about Debian release names - </h2> - <ul class="fragment"> - <li>wheezy (Debian 7) = oldstable</li> - <li>jessie (8) = stable</li> - <li>stretch (9 = testing</li> - <li>sid = unstable</li> - <li>experimental</li> - </ul> - </section> <section data-background="images/debian-jenkins.png" data-background-size="10%" data-background-position="90% 10%"> <h2> @@ -283,212 +269,27 @@ torbrowser-launcher reproducible.debian.net / tests.reproducible-builds.org/debian/ </h2> <ul> - <li>created by 379 / ~350 jobs on jenkins.debian.net</li> + <li>created by 357 jobs on jenkins.debian.net</li> <li class="fragment">it's not only about Debian anymore…</li> </ul> </section> - - - <section data-background="images/rbo.png" data-background-size="25%" data-background-position="90% 10%"> - <h2>The problem: Can we trust the build process?</h2> - <ul> - <li class="fragment">One can inspect the source code of free software for flaws</li> - <li class="fragment">But distributions provide binary/compiled packages</li> - </ul> - </section> - - <section data-background="images/rbo.png" data-background-size="25%" data-background-position="90% 10%"> - <h2>The problem: nobody can trust any binary built anywhere anymore</h2> - - <ul> - <li class="fragment">To get users, go after the developers</li> - <li class="fragment">Financial incentives to crack developer machines / build infrastructure</li> - <li class="fragment"><code>CVE-2002-0083</code>: Remote root exploit in OpenSSH (single bit difference in binary)</li> - <li class="fragment">Kernel module modifying source code when "viewed" by GCC only (see <code>media.ccc.de</code>)</li> - <li class="fragment">Compromised Apple iOS SDK, <em>Xcodeghost</em>, etc.</li> - </ul> - </section> - - <section data-background="images/rbo.png" data-background-size="25%" data-background-position="90% 10%"> - <h2>Our solution</h2> - <ul class="fragment"><small>(we are still at step 1 here)</small> - <li class="fragment">Ensure compilation of the same source always has bit by bit identical results</li> - <li class="fragment">Multiple parties compare compilation results</li> - <li class="fragment">Attacker needs to infect everybody simultaneously (or they are detected)</li> - </ul> - </section> - - <section data-background="images/rbo.png" data-background-size="25%" data-background-position="90% 10%"> - <h2>We call this <em>Reproducible Builds</em>.</h2> - - <ul class="fragment"> - <li class="fragment">We think this should become the norm for free software.</li> - </ul> - </section> - - <section data-background="images/rbo.png" data-background-size="25%" data-background-position="90% 10%"> - <h2 style="line-height: 130%;"> - The motivation behind "reproducible" builds is to allow verification - that no flaws have been introduced during the compilation process. - </h2> - </section> - - - <section data-background="images/debian.jpg" data-background-color="black"> - <h2>Reproducible builds in Debian</h2> - - <p>Continuously build every package twice, varying:</p> - - <ul> - <ul> - <li>Time & date</li> - <li>Hostname & domain name</li> - <li>Filesystem (<code><strike>disorderfs</strike></code>)</li> - <li>Timezone & locale</li> - <li><code>uid</code> & <code>gid</code></li> - <li>GECOS information, the shell & a bunch of environment variables </li> - <li>Kernel & CPU type</li> - <li>and more…</li> - </ul> - </ul> - </section> - - <section data-background="images/diffoscope.png" data-background-size="75%" data-background-position="50% 50%"> - <p><!-- worked for me but this is horrible… --> - <br /> - <br /> - <br /> - <br /> - <br /> - <br /> - <br /> - <br /> - <br /> - <br /> - <br /> - <br /> - <br /> - <h2><code>https://try.diffoscope.org</code></h2> - </p> - </section> - - <section data-background="images/rbo.png" data-background-size="25%" data-background-position="90% 10%"> - <h2>Challenges</h2> - <ul> - <ul> - <li>Timestamps</li> - <li>Timezones & locales</li> - <li>Non-deterministic file ordering</li> - <li>Dictionary/hash key ordering</li> - <li>Users, groups, <code>umask</code>, environment variables</li> - <li>Build paths</li> - <li>Specifying the environment</li> - </ul> - </ul> - </section> - - <section data-background="images/unstable_status.png" data-background-size="100%"> - - </section> - - <section data-background="images/testing_status.png" data-background-size="100%"> - - </section> - - <section data-background="images/rbo.png" data-background-size="25%" data-background-position="90% 10%"> - <h2>Other technical benefits</h2> - - <ul> - <ul> - <li>Faster to build; saves time, money & the environment</li> - <li>Easier to test changes/revisions</li> - <li>Unsafe behaviour (eg. internet access)</li> - <li>Unreliable / non-deterministic behaviours (eg. timing)</li> - <li>Finds bugs in uncommon timezones or locales</li> - <li>Detect corrupted build environments</li> - <li>Find future build failures (eg. expired certificates)</li> - </ul> - </ul> - </section> - - - <section data-background="images/stats_bugs_sin_ftbfs_state.png" data-background-size="100%"> - - </section> - - - <section data-background="images/rbo.png" data-background-size="25%" data-background-position="90% 10%"> - <h2>Future work</h2> - - <ul> - <li><code>.buildinfo</code> files distribution unsolved <small>(step 2)</small></li> - <li>How to make it meaningful for end-users <small>(step 3)</small></li> - <li class="fragment">Source code still vulnerable</li> - </ul> - </section> - - <section> - <h2>Beyond Debian…</h2> - <p> - <img src="images/logos/archlinux.png"> - <!-- img src="images/logos/baserock.png" --> - <img src="images/logos/bitcoin.png"> - <img src="images/logos/coreboot.png"> - <img src="images/logos/debian.png"> - <img src="images/logos/electrobsd.png"> - <img src="images/logos/f-droid.png"> - <img src="images/logos/fedora.png"> - <img src="images/logos/freebsd.png"> - <img src="images/logos/google.png"> - <img src="images/logos/guix.png"> - <img src="images/logos/lede.png"> - <img src="images/logos/netbsd.png"> - <img src="images/logos/nixos.png"> - <img src="images/logos/openSUSE.png"> - <img src="images/logos/openwrt.png"> - <img src="images/logos/tails.png"> - <img src="images/logos/tor.png"> - <img src="images/logos/webconverger.png"> - <div class="fragment">Reproducible Builds summits (Athens 2015, Berlin 2016)</li> - </div> - </p> - </section> - - <section> - <h2>Projects using Profitbricks resources via jenkins.debian.net</h2> - <p>works: - <img src="images/logos/coreboot.png"> - <img src="images/logos/debian.png"> - <img src="images/logos/freebsd.png"> - <img src="images/logos/lede.png"> - <img src="images/logos/netbsd.png"> - <img src="images/logos/openwrt.png"> - </p> - <p>worked: - <img src="images/logos/archlinux.png"> - <img src="images/logos/fedora.png"> - </p> - <p>work in progress: - <img src="images/logos/f-droid.png"> - <img src="images/logos/guix.png"> - </p> - </section> - + <section data-background="images/rbo.png" data-background-size="25%" data-background-position="90% 10%"> <h2> Resources used for reproducibility testing on jenkins.debian.net, by architecture & sponsor </h2> + FIXME: total jenkins numbers <ul> <li>13 amd64 systems, sponsored by Profitbricks</li> <li>4 i386 systems, sponsored by Profitbricks</li> <li>22 armhf systems, sponsored by vagrant@d.o, Debian & other donations</li> - <li>soon: 8 arm64 systems, sponsored by codethink.co.uk</li> + <li>8 arm64 systems, sponsored by codethink.co.uk</li> </ul> </section> <section data-background-color="white" data-background="images/rbo.png" data-background-size="25%" data-background-position="90% 10%"> - <h2>Usually I thank:</h2> + <h2>Thanks:</h2> <p style="text-align: center;"> <img src="images/cii.png"> <br> @@ -497,18 +298,7 @@ torbrowser-launcher <img src="images/profitbricks.jpg"> <br> <img src="images/debian_logo.png"> - </p> - </section> - - <section data-background="images/wholeworld.jpg" data-background-size="28%" data-background-position="99% 2%"> - <h2>Todays special thanks:</h2> - <p style="text-align: center;"> - <img src="images/profitbricks.jpg"> - <ul> - <li>from Debian, <code>jenkins.debian.net</code> would not have been possible like this without <em>your support!</em></li> - <li>from many many folks interested in Reproducible Builds!</li><!-- thanks to <em>you</em> <code>reproducible.debian.net</code> - could grow into <code>tests.reproducible-builds.org</code> so smoothly!</li> --> - </ul> + FIXME: codethink logo </p> </section> @@ -534,7 +324,7 @@ torbrowser-launcher <p style="text-align: center;"> <a href="https://jenkins.debian.net/"><code>https://jenkins.debian.net</code></a> <br> - <a href="https://reproducible-builds.org/"><code>https://reproducible-builds.org</code></a> + <a href="https://git.debian.org/git/qa/jenkins.debian.net.git"><code>git.debian.org/git/qa/jenkins.debian.net.git</code></a> <br /> <br /> <br /> |