Ruby and Rails Packaging to Production

packaging ruby and rails apps to production Fabio Kung Rodrigo Vaz

@fabiokung@rodrigovaz

no offense, but...

cap deploy

OMG... gem vs system pkgs again? disclaimer

it probably doesn’t apply to PaaS disclaimer

sysadmin love h+p://www.ﬂickr.com/photos/theamarand/2879573829/

http://www.ﬂickr.com/photos/sequelguy/4390001903/

sysadmins and sysops know OS/distro tools http://www.ﬂickr.com/photos/sequelguy/4390001903/

dpkg -l$ dpkg -lii adduser 3.112ubuntu1ii apt 0.7.25.3ubuntu9.3ii apt-utils 0.7.25.3ubuntu9.3ii aptitude 0.4.11.11-1ubuntu10ii autoconf 2.65-3ubuntu1ii automake 1:1.11.1-1ii autotools-dev 20090611.1ii base-ﬁles 5.0.0ubuntu20.10.04.2ii base-passwd 3.5.22ii bash 4.1-2ubuntu3ii bash-completion 1:1.1-3ubuntu2ii binutils 2.20.1-3ubuntu7ii build-essential 11.4build1ii bzip2 1.0.5-4ubuntu0.1ii cdbs 0.4.62+nmu1ubuntu9ii cmake 2.8.1-4~lucid1ii cmake-data 2.8.1-4~lucid1ii coreutils 7.4-2ubuntu2ii cpp 4:4.4.3-1ubuntu1ii cpp-4.4 4.4.3-4ubuntu5ii cpu-checker 0.1-0ubuntu2ii cron 3.0pl1-106ubuntu5ii dash 0.5.5.1-3ubuntu2ii debconf 1.5.28ubuntu4ii debconf-i18n 1.5.28ubuntu4ii debhelper 7.4.15ubuntu1ii debianutils 3.2.2ii debootstrap 1.0.28ubuntu1~lucid1ii devscripts 2.10.61ubuntu5...

dpkg -L myappdpkg --contents myapp.deb $ dpkg -L vim /. /usr /usr/bin /usr/bin/vim.basic /usr/share /usr/share/lintian /usr/share/lintian/overrides /usr/share/lintian/overrides/vim /usr/share/bug /usr/share/bug/vim /usr/share/bug/vim/presubj /usr/share/doc /usr/share/doc/vim

dpkg -S /etc/myapp.conf $ dpkg -S /usr/bin/vim.basic vim: /usr/bin/vim.basic

apticron, cron-aptapticron report [Mon, 18 Apr 2011 18:25:02 -0300]=====================================================apticron has detected that some packages need upgrading on: foo.locaweb.com.br [ 10.0.0.1 ]The following packages are currently pending an upgrade: myapp 5.1.0-3 myapp-assets 5.1.0-3======================================================Package Details:Reading changelogs...--- Changes for myapp (myapp myapp-assets) ---myapp (5.1.0-3) stable; urgency=low * new awesome feature * lots of bug ﬁxes-- Fabio Kung <fabio.kung@locaweb.com.br> Tue, 12 Apr 2011 22:31:11 -0300

http://www.ﬂickr.com/photos/atibens/4578265134/post install

health, sanity check

db/seeds.rb

rake db:migraterake assets:exportrake i18n:js:export ...

package repositories distribute it

signed packages

dev toolchain in production servers?

build pipeline

tes;ng x stable

multiple archs

dpkg -i myapp-oldversion

btw... rake db:migrate VERSION=old

dependencies

(re)deploying services must be ultra easy

package everything OH WAIT...

conﬁguration managers

recipes cf-agent promissescfengine, chef, rules cf-agent puppet cf-agent

package "sudo" do action :upgradeenduser "sshservice" do system true action :createendtemplate "/etc/sudoers" do source "sudoers.erb" mode 0440 owner "root" group "root" variables(:user => "sshservice") action :createend

bundle common control{ bundlesequence => { "ssh" }; inputs => { "cfengine_stdlib.cf" }}bundle agent ssh{ packages: "sudo" package_policy => "add" package_method => "deb" files: "/etc/sudoers" edit_defaults => empty, edit_line => expand_template("sudoers.in"), perms => mog("0440", root, root), create => "true"; methods: "sshservice" usebundle => create_user("sshservice")}

rule of thumb

keysssh, access, crypt, passwords, ...

init scripts/etc/init.d/myapp start|stop|restart

conﬁguration ﬁles <any>.yml.example

database.yml.example CFEngine3 production: adapter: mysql2 encoding: utf8 database: ${db_name} username: ${db_user} password: ${db_password} host: ${db_address}edit_line => expand_template("database.yml.example")

database.yml.example Chef, Puppet production: adapter: mysql2 encoding: utf8 database: <%= db_name %> username: <%= db_user %> password: <%= db_password %> host: <%= db_address %>

packages are addictive

creating packages http://www.ﬂickr.com/photos/miadcommunicationdesign/3169997945/

debian/controlSource: myappSection: webPriority: extraMaintainer: Fabio Kung <fabio.kung@locaweb.com.br>Build-Depends: debhelper (>= 7)Standards-Version: 3.8.3Homepage: https://github.com/locaweb/myappPackage: myappArchitecture: anyDepends: rubygems (>= 1.3.6), libapache2-mod-passenger (>= 2.2)Description: my great new app Visit https://mycompany.com/myapp for more information

debian/changelogmyapp (0.0.2) unstable; urgency=low * Applying SOLID after attending railsconf 2011 * using Devise-- Fabio Kung <fabiokung@locaweb.com.br> Wed, 18 May 2011 08:00:30 -0300myapp (0.0.1) unstable; urgency=low * Initial release-- Rodrigo Vaz <rodvaz@locaweb.com.br> Wed, 17 May 2011 18:05:20 -0300

debian/rules

dh_make --createorig

• dpkg-buildpackage• pbuilder• cowbuilder

why is it unusual?

debian-ruby- maintainersGiving up on Ruby packaging - Lucas Nussbaumhttp://www.lucas-nussbaum.net/blog/?p=617

FPM awesome https://github.com/jordansissel/fpmI want a simple way to create packages without all the bullshit. In my own infrastructure, I have no interest in Debian policy and RedHat packaging guidelines ‐ I have interest in my groups own style culture and have a very strong interest in ge6ng work done. ‐‐ Jordan Sissel

http://www.ﬂickr.com/photos/brightbox/2298191057/

http://morethanseven.net/2011/01/16/Why-developers-should- care-about-system-packages.html Why Developers Should Care About System Packages -- Gareth Rushgrove

what about other platforms?

blaming gamewhat are we doing to end it?

github.com/locaweb/debundler

a long way to go...

bundle debianize (?) bundler deeper integration, plugin

just some ideas... rvm is great :-)

vendor everything vs package everything gem dependencies

packaging gems• fpm• gem2deb• gem2rpm• checkinstall• debian/ changelog from git log

build servers

bricklayergithub.com/locaweb/bricklayer

REST APIPOST /project: name="myapp" version="1.0.1" git_url="git://host/project/repository.git" branch="master" build_cmd="rake prepare" install_cmd="rake install PREFIX=debian/tmp" respository_url="ftp.location.com" repository_user="a_user" repository_passwd="a_g00dP455w0rd"

launchpad dev.launchpad.net

pain points• old rubygems ofﬁcial system packages• bundler (!)• package yourself• PPA?

Thanks! fabio.kung at gmail, @fabiokung rodrigo.vaz at gmail, @rodrigovaz additional info: https://wiki.ubuntu.com/PackagingGuidehttp://morethanseven.net/2011/01/16/Why-developers-should-care-about-system-packages.html https://github.com/jordansissel/fpm http://www.lucas-nussbaum.net/blog/?p=617

http://en.oreilly.com	57
http://coderwall.com	9
http://elf.inroma.roma.it	1

Ruby and Rails Packaging to Production

by Fabio Kung on May 19, 2011

Accessibility

Categories

Upload Details

Usage Rights

3 Embeds 67

Statistics

Ruby and Rails Packaging to Production Presentation Transcript