Con l'approccio tradizionale al mondo IT per molti anni è stato difficile implementare tecniche di DevOps, che finora spesso hanno previsto attività manuali portando di tanto in tanto a dei downtime degli applicativi interrompendo l'operatività dell'utente. Con l'avvento del cloud, le tecniche di DevOps sono ormai a portata di tutti a basso costo per qualsiasi genere di workload, garantendo maggiore affidabilità del sistema e risultando in dei significativi miglioramenti della business continuity. AWS mette a disposizione AWS OpsWork come strumento di Configuration Management che mira ad automatizzare e semplificare la gestione e i deployment delle istanze EC2 per mezzo di workload Chef e Puppet. Scopri come sfruttare AWS OpsWork a garanzia e affidabilità del tuo applicativo installato su Instanze EC2.

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AWS OpsWorks
Alessio Ludovici, AWS Solutions Architect
Fully-managed Configuration Management

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Agenda
• Introduction to Configuration Management
• AWS OpsWorks Configuration Management (AWS OpsWorks CM)
• Chef Architecture
• Demo!

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Industry Trends
Organizations are looking to integrate DevOps processes to:
a) Reduce their operational costs
b) Deliver applications and infrastructure updates quickly, securely and efficiently
• Quick Application delivery
• Build pipelines faster
• Efficient configuration
management
• Minimize server drift
• Deploy Applications
Reliably and securely
• Compliance automation—
‘Compliance-as-Code’
• Meet compliance regulations

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DevOps Customer Pain Points
Manual process—weeks to set up
new systems
Legacy systems and tools—
inflexible and obsolete hardware
Organizational silos—unwieldy
divisions of responsibility
Infrequent, large releases—fear of
deployment due to risk of SLAs
Regulatory burdens—compliance
bottlenecks occur at the end of a project
Absence of visibility into infrastructure

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a system maintains its integrity over

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https://git-scm.com/
https://subversion.apache.org/
>> Source of Truth <<

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Introducing AWS OpsWorks
A common language for defining your
infrastructure and applications, making it
easy to move workloads to the cloud.
Provides a single management platform for
managing heterogeneous infrastructure
on-premises or in the cloud.
Enforces security policies, automatically remediates
unwanted changes, and helps you prove compliance.

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Flavors of AWS OpsWorks
AWS OpsWorks for Chef
Automate
AWS OpsWorks for Puppet
Enterprise

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AWS OpsWorks Configuration Management (CM)

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How does Chef work?
Simple client—server architecture
Connecting resources to a Chef server
as nodes
Nodes pull configuration updates from the
Chef server every X minutes
Servers managed by Chef Infra are
continuously evaluated against their desired
state
Config A Config B
Chef
Server

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Chef recipe example—configure Apache
httpd_service ‘default' do
listen_ports ['81', '82']
threadlimit '4096'
action [:create, :start]
end
httpd_config ‘default' do
instance ‘default'
source ‘mysite.conf.erb'
notifies :restart, 'httpd_service[default]'
end
.....

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Chef recipe example—configure Apache
directory '/var/www/default/public_html' do
recursive true
end
file '/var/www/default/public_html/index.html' do
content '<html>This is a placeholder</html>'
mode '0644'
owner 'web_admin'
group 'web_admin'
end

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Inspec: Get visibility into the state of your nodes
Chef Visibility—a view into convergence, compliance, cookbooks, recipes
and more

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NAT GW NAT GW
EC2
IGW
AWS
Region
AZ-1 AZ-2
VPC
Public Subnet Public Subnet
Private Subnet Private Subnet
ELB
OpsWorks
Cloud9

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AWS OpsWorks Chef Starter Kit
site-cookbooks/
.chef/
• .chef/
• .chef/ca_certs/

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AWS Training & Certification
https://www.aws.training: Free on-demand courses to help you build new cloud skills
Video: Introduction to AWS OpsWorks for Chef Automate
https://www.aws.training/Details/Video?id=16369
Video: Introduction to AWS OpsWorks Stacks
https://www.aws.training/Details/Video?id=16367
For more info on AWS T&C visit: https://aws.amazon.com/it/training/

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AWS Europe (Milan) Region
On April, 28th AWS expanded its global footprint with the opening of the AWS Infrastructure Region in Italy. The new
Region AWS Europe (Milano) brings advanced cloud technologies that enable opportunities for innovation,
entrepreneurship, and digital transformation. For additional information about services and characteristics of an AWS
Region, you can check the website: aws.amazon.com/local/italy/milan/

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Thanks!
Alessio Ludovici, AWS Solutions Architect
alexludo@amazon.com
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