A talk outlining the use of Vagrant, Puppet and Webmin, practical tools for programmers, administrators and DevOps.

1. DEVOPS TOOLS FOR EVERYONE:
VAGRANT, PUPPET AND WEBMIN
!
Michał Karzyński, DevCon 2014

2. TALK OUTLINE
1. Vagrant - create#
2. Puppet - configure#
3. Webmin - administer
michal@karzynski.pl DevCon 2014

3. YOURSTRULY
Michał Karzyński#
• project manager at Politechnika Gdańska#
• freelance developer and consultant#
• polyglot, currently: Python and JavaScript#
• author#
• web developer since 1996#
• @postrational http://michal.karzynski.pl#
michal@karzynski.pl DevCon 2014

4. What does a webapp look like?

5. LAMP

6. Apache
Linux
MySQL
PHP

7. Nginx
Linux
PostgreSQL
Python
Virtualenv
Gunicorn

8. Nginx
Linux
PostgreSQL
Python
Virtualenv
Gunicorn
Varnish
Redis

9. Nginx
Linux
PostgreSQL
Python
Virtualenv
Gunicorn
Varnish
Redis
MongoDB
Celery
Postfix
RabbitMQ

11. Vagrant

12. $ vagrant up

13. $ git clone git://.../development.git
$ cd development
$ vagrant up

15. HOW DOES IT WORK?
VAGRANTFILE_API_VERSION = "2"!
!
Vagrant.configure(VAGRANTFILE_API_VERSION) do |config|!
config.vm.box = "debian-wheezy-64"!
config.vm.box_url = "https://.../debian-wheezy-64.box"!
config.vm.hostname = "wheezy-vm"!
end
Vagrantfile

16. • Ease of use#
• Many pre-configured boxes available#
• Support for multiple machines#
• Local support forVirtualBox orVMware#
• Build remote clouds on AWS, RackSpace, etc.#
• Provisioning using:Ansible, Chef, Docker, Puppet, etc.
FEATURES
http://www.vagrantup.com

17. PUPPET PROVISIONING
Vagrant.configure(VAGRANTFILE_API_VERSION) do |config|!
config.vm.box = "debian-wheezy-64"!
config.vm.box_url = "https://www.dropbox.com/s/foj5mml4ft3b363/debian-wheezy-64.box?dl=1"!
config.vm.hostname = "wheezy-vm"!
!
# Install puppet modules!
config.vm.provision :shell do |shell|!
shell.inline = "# Install modules from Puppet Forge!
mkdir -p /etc/puppet/modules;!
puppet module install puppetlabs/apt;!
!
# Install Puppet modules from GitHub!
aptitude -y install git;!
cd /etc/puppet/modules;!
git clone git://github.com/stankevich/puppet-python.git python;!
"!
end!
!
# Use Puppet to provision server configuration!
config.vm.provision "puppet" do |puppet|!
puppet.manifests_path = "manifests"!
end!
!
end
Vagrantfile

19. Puppet

20. INSTALLING A PACKAGE
$ vim /etc/apt/sources.list!
!
deb http://download.webmin.com/download/repository sarge contrib!
!
$ wget -qO - http://www.webmin.com/jcameron-key.asc | sudo apt-key add -!
$ sudo aptitude update!
$ sudo aptitude install webmin!

21. WITH PUPPET
include 'apt'!
!
apt::source { 'webmin':!
location => 'http://download.webmin.com/download/repository/',!
release => 'sarge',!
repos => 'contrib',!
key => '11F63C51',!
include_src => false,!
}!
!
apt::key { 'webmin':!
key => '11F63C51',!
key_source => 'http://www.webmin.com/jcameron-key.asc',!
}!
!
exec { "apt-update-webmin":!
command => "/usr/bin/aptitude -y update",!
require => [Apt::Source['webmin'], Apt::Key['webmin']],!
}!
!
package { !
'webmin': !
ensure => present,!
require => Exec['apt-update-webmin'],!
}
webmin.pp

22. SET UP A DATABASE
# Install the Postgres server!
class { 'postgresql::server':!
ensure => 'present',!
listen_addresses => 'localhost',!
encoding => 'UTF8',!
manage_firewall => true,!
}!
!
# Install PostgreSQL client!
class { 'postgresql::client': }!
!
# And development libraries!
class { 'postgresql::lib::devel': }!
!
!
# Set up a PostgreSQL database named 'hello' !
# and user named 'hello_django' with a long passphrase!
postgresql::server::db { 'hello':!
user => 'hello_django',!
password => postgresql_password('hello_django', 'xxxxxxxxxxxxx'),!
}
database.pp

23. ADDING A USER
package { !
'sudo': ensure => present;!
'zsh': ensure => present;!
'git': ensure => present;!
}!
!
user { 'michal':!
password => 'xxxxxxxxxxxxx',!
groups => ['staff', 'sudo'],!
ensure => 'present',!
managehome => 'true',!
shell => '/usr/bin/zsh',!
require => Package['zsh'],!
}!
!
ssh_authorized_key{ 'michal@silver':!
user => 'michal',!
ensure => 'present', !
type => 'ssh-rsa', !
key => 'xxxxxxxxxxxxx', !
require => User['michal'],!
}
my_account.pp

24. FEATURES
• Store server configuration in text files (manifests)#
• Automatically configure packages, user accounts, services, etc.#
• Declarative language to describe machines#
• Store configuration of multiple machines on a central Puppet
master server#
• Update configuration when manifest file changes
http://puppetlabs.com

25. MASTER OF PUPPETS
Master
Puppet Puppet Puppet Puppet

26. Webmin

27. YOUR SERVER GUI
https://my-server:10000

28. YOUR SERVER GUI

29. PROCESSES

30. INIT SCRIPTS

31. NETWORKING

32. FIREWALL

33. SERVICES

34. DATABASES

35. FEATURES
• Graphically manage packages, user accounts, services#
• Install and configure server software#
• Monitor server activity and log files#
• Tweak and test settings#
• Execute commands and access files through the browser#
• Support for MySQL, PostgreSQL,Apache, PHP and many, many others
http://webmin.com

36. SHAMELESS PLUG

37. DEVOPSTOOLS FOR EVERYONE
1. Vagrant - create#
2. Puppet - configure#
3. Webmin - administer
michal@karzynski.pl DevCon 2014

38. THANKYOU
• http://www.ikea.com/us/en/catalog/products/60148701/#
• http://www.globtroter.pl/zdjecia/
44393,norwegia,brak,latarnia,morska,w,lindesnes,x.html
michal@karzynski.pl DevCon 2014
IMAGE CREDITS: