The document discusses using Vagrant and Puppet to create lightweight reproducible development environments. Vagrant allows defining and managing virtual machine configurations through code. Puppet is used to automate configuration of software and services on VMs. The Java Vagrant-Binding API allows managing the lifecycle of Vagrant VMs from Java code, including provisioning VMs with Puppet. It provides builder APIs, JUnit support, and allows running tests against reproducible environments.

1. Lightweight and reproducible environments
with
Vagrant & Puppet
& Java

2. About me
•Hendrik Ebbers
•Lead of development at SIC GmbH in
Dortmund, Germany
•Lead of JUG Dortmund
@hendrikEbbers
www.guigarage.com
hendrik.ebbers@web.de

3. Content
•Vagrant
•Puppet
•Java Vagrant-Binding API

4. Vagrant

5. Vagrant
Vagrant
manage lifecycle
•configure virtual machines by script
create
•create new instances on the fly
•manage the VM lifecycle
VM

6. Vagrant
add template VM to Vagrant
$ vagrant box add lucid32 http://
files.vagrantup.com/lucid32.box
$ vagrant init lucid32 creates VM
configuration-script
$ vagrant up
start the virtual machine

7. Vagrant
•build on top of VirtualBox
•written in Ruby
by shel l & Ruby
access

8. Vagrant Ubuntu
32- & 64
Lucid
-bit
•provides 2 template boxes by default
•simple config-files it´s just Ruby
Vagrant::Config.run do |config|
config.vm.box = "lucid32"
end see great Vagrant
documentation
•easy ssh connection, shared folder, etc.

9. Puppet

10. Puppet
•configure your machines (nodes) by script
•install and configure software & services

11. Puppet
class apache {
exec { 'apt-get update':
command => '/usr/bin/apt-get update'
}
package { "apache2":
ensure => present, Ap ache2 is installed
}
service { "apache2": & started on node
ensure => running,
require => Package["apache2"],
}
}
include apache

12. Puppet
•package individual components in modules
•many online documentations & books out
there

13. Vagrant
&
Puppet

14. Vagrant & Puppet
•define your VM with Vagrant & configure it
with Puppet
•Puppet is pre-installed on Vagrant boxes

15. Vagrant & Puppet
Vagrantfile
Vagrant::Config.run do |config|
config.vm.box = "lucid32"
config.vm.provision :puppet do |puppet|
puppet.manifests_path = "manifests"
puppet.manifest_file = "my_manifest.pp"
end
end path to Puppet script

16. Vagrant-
Binding
ure & manage
config
VMs in Java

17. Vagrant-Binding
•Java Wrapper around Vagrant
•create & start VMs at runtime
•only VirtualBox is required

18. Vagrant-Binding
•Builder APIs
•JUnit support
•Puppet support

19. Builder API
VagrantVmConfig vmConfig = new VagrantVmConfigBuilder()
! ! ! ! .withLucid32Box()
! ! ! ! .withName("myLittleVm") builder API for VM
! ! ! ! .withHostOnlyIp("192.168.50.4")
! ! ! ! .build();
also builder API
VagrantEnvironment environment = ...; available
environment.up(); mana ge VM lifecycle
! ! !
environment.getVm(0).createConnection().execute("touch /tmp1");
environment.destroy(); ssh connection

20. JUnit support
@Test wh at if host not
public void testJdbc() { reachable?
dbHandler = new MySql(ip, db, user, pwd);
dbHandler.createMyTable(); what if table
already exists?
dbHandler.insertRow();
assertEquals(1, dbHandler.getRowCount());
dbHandler.close(); parallel proces
ses?
}

21. JUnit support
JUnit annotation manage VM lifecycle
@Rule
public VagrantTestRule testRule =
new VagrantTestRule(createConfig());
public static VagrantConfiguration createConfig() {
//Configure VM with MySQL-Server & static ip
} use builder API for VM spec
ification
create VM start VM run UnitTest destroy VM

22. Vagrant-Binding
fork me
on github
https://github.com/guigarage/vagrant-binding

23. Thanks
for
watching
@hendrikEbbers
www.guigarage.com
hendrik.ebbers@web.de