The Daemon in Puppets

by Edward Tan

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Disclaimer

I only represent myself and no one/company/entity else.

I solemnly, sincerely and truly declare and affirm that I will tell the truth, the whole truth and nothing but the truth.

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Before Starting

* How many of you heard about FreeBSD? * How many admins here? * BSD? * Linux? * Other unix? * windows??? :p gotta ask

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Who're you?

* Blogger (psybermonkey.net & AboutBSD.net) * Author (BSDMag, second article coming out) * Speaker (of this talk, The Daemon in Puppets)

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What are you doing?

* Full time System Administrator * network related * DNS * Radius * Apache * LDAP * Cacti * Nagios * -- snip -- (the list is getting too long) * shells * perl * bourne & again shell * Rest of the time * FreeBSD

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FreeBSD? What's that?

* Unix variant * started from 386BSD, 1993 * advance, complex, sophisticated * OS comes with : * ZFS * PF (packet filter) * 10gbps * IPv6 ready (since y2k) * use by : * companies Apple Cisco Juniper * web Yahoo! Apache Netcraft

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* a true operating system * not just a kernel, but a base comes with it of tools & programs * ports * flexibility of source code * simplicity of package management tools * more then 23,000 applications waiting to be install by mere : "make install"

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* and yet simple directory structured * / root * /dev device nodes * /boot bootstrap needed programs & files * /etc configurations * /usr user land utilities & apps * /usr/ports The FreeBSD ports collection * /usr/local local executables & libraries * /usr/local/share/doc documentations aka doc * /var variable files * /bin user utilities & apps * /sbin system utilities & apps * /mnt directory for mount points * /tmp temporary directory

* these clearly defined directories eases organization of information on the disk

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Linus Torvalds once said :

"If 386BSD had been available when I started on Linux, Linux would probably never had happened."

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Okay, why is there anything to do with Puppet?

* I'm taking care of more then 60 servers * 80% of it is FreeBSD * new deployment & migration of these servers are happening * new projects needs new services * hardware refreshment & virtulization is moving these servers around * disaster recovery * automated * redundancy * automated setup of new server requires minimum documentation * policies can be applied automatically * ntpd * sshd * sudoers * resolv.conf * syslogd * etc

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Wow, you need to manage your configs more efficiently.

* Some alternative * svn * still required certain amount of work after svn export * OS integration is minimum * e.g. create user configure network card static * doesn't do templating & file line editing * e.g. file_line in stdlib

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* cssh * cool * reduced repetitious work across servers when deployment * but still back to square one when customizing servers

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* Bcfg2/etch * never like HTML

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* Chef * wolf in disguise * not free, at least for modules (... next)

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* cfEngine * looks promising * puppet just sound better

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Why Puppet?

* excellent documentation * step by step guide * tutorial with Virtual Machine provided * surprisingly easy DSL * client server model * manages other platform also * linux * windows * cisco? * it works with FreeBSD * system * ports installation * user creation * service start/stop/restart * file system * file creation * ownership * available through ports * cd /usr/ports/sysutils/puppet; make install

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But I thought you mention Lazy, Impatience & Hubris?

* Lazy * The manifest & modules needs to be setup once and can use many times * Impatience * Puppet's excellent DSL & docs give gradual learning curve * only learn what you need to know and implement * Hubris * Manifest & modules are the essence of using (showing off) Puppet

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How do I install Puppet on FreeBSD?

* use ports * it requires * ruby * portupgrade * others ...

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Enough said, can you show me?

* expect these : * "Puppetless" installation & configuration of FreeBSD * apache22 * vhost * test page * Puppet master FreeBSD installation * installation Puppet * dependency installation * Puppet master configuration * client installation * requirement installations * first sign up of puppet with puppet master * show off manifest of * installation of ports * user environment settings * bash * vim * ssh * tmux * sudoers * apache22 * vhost * test page

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(you're suppose to be showing off Puppet on FreeBSD)

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* conclusion after demo * for linux admin, puppet just works * for freebsd admin, puppet just works * for freebsd wannatry, puppet just works

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What I hope to see Puppet in FreeBSD

* portmaster instead of portupgrade * new & shiny * patches are active * simple dependency, /bin/sh only

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Question?

* Blog : http://psybermonkey.net

* Email : edward@psybermonkey.net

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The End ...

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Errata

* On slide 14, stating Chef is not Free wasn't true. This was a last minute learning that, there are open source Chef's modules which can be download and use freely. My mistake.

Credits

* History of FreeBSD - http://www.freebsd.org/doc/en_US.ISO8859-1/books/handbook/history.html

* Quote of Linus Torvalds - http://en.wikiquote.org/wiki/Linus_Torvalds

* Quote "Lazy, Impatience & Hubris" was taken from Larry Wall, the creator of Perl - http://en.wikipedia.org/wiki/Larry_Wall

The End, seriously this time. :)

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