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Julien Pivotto

CentOS Dojo, Brussels
January 31, 2014
whoami
sysadmin @ inuits
• open-source defender for 7+ years
• devops believer
• @roidelapluie on twitter/github
•

Julien Pivotto

Foreman
Introduction

Julien Pivotto

Foreman
Lifecycle management
• Provisioning
• Automation
• Reporting

Julien Pivotto

Foreman
We had tools!?
• Provisioning using Cobbler
• Automation using Puppet/Chef/. . .
• Puppet reporting with Puppet Dashboard

Julien Pivotto

Foreman
Then came virtualisation
• Cobbler was not enough
• Using virt-install to automate VM creation
• One shot command line, decentralized
• Cobbler does not cluster

Julien Pivotto

Foreman
Then came cloud
• Where is my machine?
• Bare-Metal? Bare-what?
• Dynamic environments
• Change quickly and often

Julien Pivotto

Foreman
Cobbler
• Not intuitive or reactive
• Support for Xen
• TFTP on the local machine
• Direct control of DHCP configuration
• Basic yumrepo support

Julien Pivotto

Foreman
Puppet-dashboard
• Puppet web frontend
• It was the reference
• Until the arrival of Foreman
• Puppetlabs abandoned it for PuppetDB

Julien Pivotto

Foreman
Provisioning
• Bare metal and virtual
• Multiple backends
• Decentralized (control remote TFTP, DNS, DHCP)

Julien Pivotto

Foreman
Automation
• (puppet) ENC
• Trigger puppet runs
• Advanced use: parameters,. . .
• History of changes
• ENC is optional

Julien Pivotto

Foreman
Reporting
• Visualise changes
• See the full logs
• View the facts

Julien Pivotto

Foreman
Foreman

Julien Pivotto

Foreman
Foreman 101
• Foreman was used for one thing
• Viewing puppet reports
• Having cool statistics gathering, facts

Julien Pivotto

Foreman
Lifecycle Management with Foreman
Meanwhile
• More and more features
• More than a fact/reports viewer
• Interacts deeply with puppet

Julien Pivotto

Foreman
Foreman 201
• Puppet reports viewer
• Machine provisioning
• Puppet ENC
• Extendable with plugins

Julien Pivotto

Foreman
Architecture

Julien Pivotto

Foreman
Smart Proxies
• Provides Restful API
• Connect to Bind, DHCP, TFTP, . . .
• Also puppet-ca, mcollective, . . .
• Allow foreman to talk with services

Julien Pivotto

Foreman
From the Foreman documentation
Foreman installer
• kafo
• a rubygem
• Command line installer
• Using puppet modules
• Generic Project

Julien Pivotto

Foreman
Foreman installer
• a lot of options
• interactive installation: -i
• enables/disables stuff
• sets up git repositories
• creates a puppet tree skeleton

Julien Pivotto

Foreman
Provisioning

Julien Pivotto

Foreman
Provisioning
• Install any distribution
• Configure almost everything
• Generate snippets, kickstarts,. . .
• ERB Scripting

Julien Pivotto

Foreman
Lifecycle Management with Foreman
Providers
• Libvirt
• EC2
• OpenStack
• Google Compute Engine
• oVirt
• VMWare

Julien Pivotto

Foreman
Lifecycle Management with Foreman
OS
• CentOS/RHEL
• Fedora
• Ubuntu/Debian
• Suse
• Solaris

Julien Pivotto

Foreman
Lifecycle Management with Foreman
Features of providers
• Depending on the provider
• Unattended installation
• Image-based install
• Power management
• Console (noVNC)

Julien Pivotto

Foreman
Lifecycle Management with Foreman
Automation

Julien Pivotto

Foreman
Puppet ENC
• Support classes
• Parametrized classes
• Smart variables

Julien Pivotto

Foreman
Lifecycle Management with Foreman
Configuration
• Environments
• Host groups
• Classes + params
• Global parameters

Julien Pivotto

Foreman
Lifecycle Management with Foreman
Lifecycle Management with Foreman
Certificates
• Puppet-ca proxy
• Takes care of signing certificates
• Trigger first puppet run
• Run first puppet run in noop mode (before reboot).

Julien Pivotto

Foreman
Reporting

Julien Pivotto

Foreman
Puppet reports
• Very detailed
• History
• Time per ressource
• Overview of the last reports

Julien Pivotto

Foreman
Lifecycle Management with Foreman
Host groups
• Default provisioning parameters
• Puppet classes
• Network configuration

Julien Pivotto

Foreman
Integration

Julien Pivotto

Foreman
Queries
• Advanced queries
• Query by facts, by last report time
• Create custom shorcut in the ui

Julien Pivotto

Foreman
RESTful API
• Complete and well documented
• Everything is possible
• Integrate foreman with anything

Julien Pivotto

Foreman
Hammer
• Command line to foreman
• Scripting
• Automation
• Without browser (e.g no http(s) access)

Julien Pivotto

Foreman
Lifecycle Management with Foreman
Scale

Julien Pivotto

Foreman
Large infrastructure
• Fine-grained roles (ACL)
• LDAP authentication
• Organisation/location support

Julien Pivotto

Foreman
Scaling up
• Multiple Puppet Masters
• Multiple Smart Proxies
• Foreman talks with the CA
• Multiple compute resources

Julien Pivotto

Foreman
Use cases

Julien Pivotto

Foreman
Puppet logs reader
• Why are my puppet runs taking so long?
• When does that node report the last time
• Quickly view facter facts
• Just ignoring the provision part of foreman

Julien Pivotto

Foreman
Giving access
• Allow developers to create VM’s
• Easy, secure, less risks
• NoVNC access in browser
• Usage of ACL

Julien Pivotto

Foreman
Phoenix tests
• Really easy to rebuild a VM
• Re-provisioning
• Puppet certs managed across foreman
• Integrate with Jenkins (REST)

Julien Pivotto

Foreman
Conclusion

Julien Pivotto

Foreman
Conclusion
• From small labs to larger environments
• Interactions with RESTful API
• Complete puppet management
• Bare Metal and virtual machines

Julien Pivotto

Foreman
Foreman meetings in the next days
• Configuration management devroom at FOSDEM
• Config Management Camp in Ghent (no tickets left)

Julien Pivotto

Foreman
Thank you
Any question?

Julien Pivotto

Foreman
Contact
Julien Pivotto
julien@inuits.eu
@roidelapluie

INUITS bvba
INUITS bvba
Belgium
Belgium
+32 473 441 636
+32 473 441 636
https://inuits.eu
https://inuits.eu

Julien Pivotto

Foreman

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