Scalable Systems Management with Puppet

Scalable Systems Management with Puppet Nick Jones and Stephen McNally HPC Operations Group August 2, 2010

National Institute for Computational Sciences ,[object Object],[object Object],[object Object],[object Object],[object Object]

Topics ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Wireless ,[object Object],[object Object]

Challenges that System Administrators Face

What do Systems Administrators do? ,[object Object],[object Object],[object Object],[object Object]

Case Studies : Your Prototypical SysAdmin ,[object Object],[object Object],[object Object]

Case Study 1 : Sudo ,[object Object],[object Object]

Case Study 1 : Sudo ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Case Study 1 : Sudo ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Case Study 2 : iptables ,[object Object],[object Object]

Case Study 2 : iptables ,[object Object],[object Object],[object Object],[object Object]

Case Study 2 : iptables ,[object Object],[object Object],[object Object],[object Object],[object Object]

Case Study 3 : Doomsday ,[object Object],[object Object]

Case Study 3 : Doomsday ,[object Object],[object Object],[object Object],[object Object]

Case Study 3 : Doomsday ,[object Object],[object Object],[object Object],[object Object],[object Object]

What is Puppet? ,[object Object],[object Object]

Puppet Competitors ,[object Object],[object Object],[object Object],[object Object]

Puppet vs cFengine ,[object Object],[object Object]

Puppet vs cFengine ,[object Object],[object Object],[object Object],[object Object],[object Object]

Puppet Language ,[object Object],[object Object],[object Object],[object Object],[object Object]

Layers Image: Official Puppet Documentation

How does Puppet work? Image: Official Puppet Documentation

Idempotency ,[object Object],[object Object],[object Object],[object Object]

Cross Platform Abstraction ,[object Object],[object Object],[object Object]

Providers ,[object Object],[object Object],[object Object],[object Object]

Facter ,[object Object],[object Object],[object Object],[object Object],-bash-3.2$ facter architecture => x86_64 domain => nics.utk.edu facterversion => 1.5.7 fqdn => example.nics.utk.edu hardwareisa => x86_64 hardwaremodel => x86_64 hostname => example id => jones interfaces => eth0,eth0_kraken_una,eth1 … .and more

Linux ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

BSD/*nix/Windows ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Installing Puppet Table credit: Turnbull, Pulling Strings with Puppet

Puppet Installation and Configuration

Manual Installation of Puppet Puppet is a client / server based application Puppet clients are often referred to as nodes, clients, or hosts The Puppet server is often referred to as the puppetmaster Not:

Manual Installation of Puppet Currently Reductive Labs offers support for the following operating systems: Linux : CentOS, Debian, Fedora, Gentoo, Mandriva, RHEL, Oracle Linux, SUSE, and Ubuntu BSD : FreeBSD, and OpenBSD Other Unix : Mac OS-X, and Sun Solaris Windows : None currently Source: http://docs.puppetlabs.com/guides/platforms.html

Manual Installation of Puppet ,[object Object],[object Object],[object Object],[object Object],[object Object]

Installing Puppet on CentOS / RHEL Ensure that your package manager (yum) is configured to communicate with the EPEL repo. # rpm -Uvh http://download.fedora.redhat.com/pub/epel/5/x86_64/epel-release-5-3.noarch.rpm # yum repolist Should list epel in the left hand column

Installing Puppet on CentOS / RHEL # yum install -y puppet (installs the client) # yum install -y puppet-server (installs the server) # yum install -y facter # yum install -y ruby-doc (optional if you want –help to work with ruby commands) These installs will also process other dependencies such as ruby and ruby-libs

Configure Puppet on CentOS / RHEL ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Configure Puppet on CentOS / RHEL ,[object Object],[object Object],[object Object]

Configure Puppet on CentOS / RHEL ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Configure Puppet on CentOS / RHEL ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Configure Puppet on CentOS / RHEL ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Setup Certificate Autosign Option #1 ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Setup Certificate Autosign Option #2 ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Setup Certificate Autosign Option #3 ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Setup Certificate Autosign Option #3 ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Installation is complete! Basic Puppet installation is complete! (seriously, we aren’t joking)

Managing Your Infrastructure with Puppet

NICS Puppet Infrastructure /etc/puppet files/ manifests/ modules/ auth.conf autosign.conf fileserver.conf puppet.conf tagmail.conf byhost/ classes/ nodes.pp site.pp host1 / host2 / host3 / class1.pp class2.pp mod1 / manifests/ files/ templates/ init.pp Files Folders Placeholder Names

Sample site.pp ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Classes vs. Modules ,[object Object],[object Object],[object Object],[object Object],[object Object]

Building Puppet Modules ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Sample module init.pp ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Module Files ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Sample Infrastructure Class ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

What is a template? ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

ERB variable declaration ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

ERB variable declaration ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Hands on Exercises ,[object Object],[object Object],[object Object]

Install and Configure Puppet client / server ,[object Object],[object Object],[object Object]

Create a module ,[object Object],[object Object]

Module Dependency ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Intra-module dependencies ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Inter-module dependencies ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Module Inheritance ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Optimize your MySQL modules for use with dependencies ,[object Object]

Proper Cluster Management ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Proper Cluster Management ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Questions?? Nick Jones [email_address] Stephen McNally [email_address]

Scalable Systems Management with Puppet

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