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DevOps Training
"Dev Ops is the key to
unlock the automation
around the world"
 BY
 M Anil Kumar
 You can ask 10 people for a definition of DevOps and likely get 10 different
answers. If you want to find a definition of your own, your research will
probably begin by asking Google, “what is DevOps”. Naturally, Wikipedia is
one of the first result so that is where we will begin. The first sentence on
Wikipedia defines DevOps as “a software development method that stresses
communication, collaboration and integration between software developers
and information technology (IT) professionals.” Well, that’s a fairly dense
definition
What is DevOps
A Short History of DevOps
2008
l Software developer Patrick Debois - —developer, network specialist,
system administrator, tester and project manager.
l Debois helps plant the seeds of the DevOps movement at the Agile
conference in Toronto, resolve the conflict between the software
developers and the operations teams when it comes to getting great work
done quickly.
2009
l At the O’Reilly Velocity Conference, two Flickr employees—John Allspaw,
senior vice president of technical operations, and Paul Hammond, director
of engineering—deliver a seminal talk known as “10+ Deploys per Day:
Dev and Ops Cooperation at Flickr.”
The Perfect Storm of 2009.
A perfect storm of converging adjacent methodology including Agile,
Operations Management , LEAN and IT Service management came
together in 2009 through a smattering of conferences, talks and Twitter
(#devops) debates worldwide that eventually became the philosophy behind
DevOps.
But it didn’t include the operations side so while development could be
continuous, deployment was still waterfall-oriented.
l Debois launches the first Devopsdays event, in Ghent, Belgium. Early supporters
include John Willis, an enterprise system management expert, and Kris Buytaert, a
Linux and open source consultant.
l 2010
l The first US Devopsdays is organized, with the help of Willis.The events soon
become a regular global series of community-organized conferences and a major
force driving the DevOps community forward.
l 2011
l The DevOps community starts to build open source tools like Vagrant (for creating
and configuring virtual development environments) that work with existing
configuration management tools like Puppet and Chef.
DevOps is the philosophy of unifying Development and Operations at the culture, practice,
and tool levels, to achieve accelerated and more frequent deployment of changes to
Production.
Culture=behaviour, teamwork, responsibility/accountability, trust...
Practice=policy, roles, processes/procedures, metrics/reporting...
Tools=shared skills, toolmaking for each other, common technology platforms...
DevOps definitions
Modern applications in the cloud and out.
l DevOps found initial traction within many large public cloud service providers.
infrastructure is now part of the code.
l Classic big WebOps shops like Google, Amazon, Twitter and Etsy are known to do
deployments multiple times a day.
l DevOps helps ensure frequent deploys with a low failure rate.
l Companies of all sizes are beginning to implement DevOps practices.
l DevOps adoption increased from 66 percent in 2015 to 74 percent in 2016.
1. DevOps is not simply combining Development & Operations teams
2. DevOps is not a separate team
3. DevOps is not a tool
4. DevOps is not a one-size-fits-all strategy
5. DevOps is not just automation
What is DevOps And How It Is Useful In Real life.
 The DevOps Lifecycle Looks Like This:
 Check in code
 Pull code changes for build
 Run tests (continuous integration server to
generate builds & arrange releases): Test individual
models, run integration tests, and run user
acceptance tests.
 Store artifacts and build repository (repository for
storing artifacts, results & releases)
 Deploy and release (release automation product to
deploy apps)
DevOps and Software
Development Life Cycle
 Configure environment
 Update databases
 Update apps
 Push to users – who receive tested app updates
frequently and without interruption
 Application & Network Performance Monitoring
(preventive safeguard)
 Rinse and repeat
What is DevOps And How It Is Useful In Real life.
 Utilizing a DevOps lifecycle, products can be continuously deployed in a
feedback loop through:
 Infrastructure Automation
 Configuration Management
 Deployment Automation
 Infrastructure Monitoring
 Log Management
 Application & Performance Management
The DevOps Lifecycle = A Rapid
Release Cycle with a Strong
Feedback Loop
What is DevOps And How It Is Useful In Real life.
 Installation of server hardware and OS
 Configuration of servers, networks, storage, etc…
 Monitoring of servers
 Continous Integration
 Continous Delivery
 Respond to outages
 IT security
 Change control
 Backup and disaster recovery planning
 Automating and Orchestrating entire process
DevOps main objectives
 With the arrival of tools like Puppet, and Chef, the
concept of Infrastructure as Code was born
 Infrastructure as code, or programmable
infrastructure, means writing code (which can be
done using a high level language or any descriptive
language) to manage configurations and automate
provisioning of infrastructure in addition to
deployments.
Infrastructure As A Code
 What is the relationship between Cloud Computing
and DevOps? Is DevOps really just “IT for the
Cloud”? Can you only do DevOps in the cloud? Can
you only do cloud using DevOps? The answer to all
three questions is “no”. Cloud and DevOps are
independent but mutually reinforcing strategies for
delivering business value through IT
DevOps on the Cloud
 There’s no formal career track for becoming a DevOps engineer. They are
either developers who get interested in deployment and network
operations, or sysadmins who have a passion for scripting and coding,
and move into the development side where they can improve the
planning of test and deployment.
 Either way, these are people who have pushed beyond their defined areas
of competence and who have a more holistic view of their technical
environments.”
Prerequisites for DevOps
 Ansible
 Scripting
 Jenkins
 Chef
 Git
 Nexus
 Docker
 Nagios
 Vagrant….etc
Tools in Dev Ops
 Continuous integration (CI) is a software engineering practice in which isolated changes
are immediately tested and reported on when they are added to a larger code base. The
goal of CI is to provide rapid feedback so that if a defect is introduced into the code
base, it can be identified and corrected as soon as possible.
 Time frames are crucial. Integration should be divided into three steps:
 commit new functionality and build new application
 run unit tests
 run Integration/System tests
Continuous Integration
 The relevant terms here are “Continuous Integration” and “Continuous Deployment”,
often used together and abbreviated as CI/CD . Originally Continuous Integration
means that you run your “integration tests” at every code change while Continuous
Delivery means that you automatically deploy every change that passes your tests.
 The Software Development Pipeline
 From a high level, a CI/CD pipeline usually consists of the following discrete steps:
 Commit. When a developer finishes a change to an application, he or she commits it to
a central source code repository.
 Build. The change is checked out from the repository and the software is built so that it
can be run by a computer. This steps depends a lot on what language is used and for
interpreted languages this step can even be absent.
 Automated tests. This is where the meat of the CI/CD pipeline is. The change is tested
from multiple angles to ensure it works and that it doesn’t break anything else.
 Deploy. The built version is deployed to production.
Continuous Release and
Deployment
 Application monitoring and feedback solutions
enable you to:
 Help steer projects toward successful completion
with better application visibility.
 Manage and optimize application and
infrastructure performance in traditional IT,
virtualized, cloud and hybrid environments.
 Receive customer feedback in both pre-and
post-production phases, resulting in lower costs
of errors and changes.
 Maximize the value of every customer visit,
helping to ensure that more transactions are
completed successfully.
 Gain immediate visibility into the sources of
customer issues that may affect their behavior
Continuous Application Monitoring

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What is DevOps And How It Is Useful In Real life.

  • 1. DevOps Training "Dev Ops is the key to unlock the automation around the world"  BY  M Anil Kumar
  • 2.  You can ask 10 people for a definition of DevOps and likely get 10 different answers. If you want to find a definition of your own, your research will probably begin by asking Google, “what is DevOps”. Naturally, Wikipedia is one of the first result so that is where we will begin. The first sentence on Wikipedia defines DevOps as “a software development method that stresses communication, collaboration and integration between software developers and information technology (IT) professionals.” Well, that’s a fairly dense definition What is DevOps
  • 3. A Short History of DevOps 2008 l Software developer Patrick Debois - —developer, network specialist, system administrator, tester and project manager. l Debois helps plant the seeds of the DevOps movement at the Agile conference in Toronto, resolve the conflict between the software developers and the operations teams when it comes to getting great work done quickly. 2009 l At the O’Reilly Velocity Conference, two Flickr employees—John Allspaw, senior vice president of technical operations, and Paul Hammond, director of engineering—deliver a seminal talk known as “10+ Deploys per Day: Dev and Ops Cooperation at Flickr.”
  • 4. The Perfect Storm of 2009. A perfect storm of converging adjacent methodology including Agile, Operations Management , LEAN and IT Service management came together in 2009 through a smattering of conferences, talks and Twitter (#devops) debates worldwide that eventually became the philosophy behind DevOps. But it didn’t include the operations side so while development could be continuous, deployment was still waterfall-oriented.
  • 5. l Debois launches the first Devopsdays event, in Ghent, Belgium. Early supporters include John Willis, an enterprise system management expert, and Kris Buytaert, a Linux and open source consultant. l 2010 l The first US Devopsdays is organized, with the help of Willis.The events soon become a regular global series of community-organized conferences and a major force driving the DevOps community forward. l 2011 l The DevOps community starts to build open source tools like Vagrant (for creating and configuring virtual development environments) that work with existing configuration management tools like Puppet and Chef.
  • 6. DevOps is the philosophy of unifying Development and Operations at the culture, practice, and tool levels, to achieve accelerated and more frequent deployment of changes to Production. Culture=behaviour, teamwork, responsibility/accountability, trust... Practice=policy, roles, processes/procedures, metrics/reporting... Tools=shared skills, toolmaking for each other, common technology platforms... DevOps definitions
  • 7. Modern applications in the cloud and out. l DevOps found initial traction within many large public cloud service providers. infrastructure is now part of the code. l Classic big WebOps shops like Google, Amazon, Twitter and Etsy are known to do deployments multiple times a day. l DevOps helps ensure frequent deploys with a low failure rate. l Companies of all sizes are beginning to implement DevOps practices. l DevOps adoption increased from 66 percent in 2015 to 74 percent in 2016.
  • 8. 1. DevOps is not simply combining Development & Operations teams 2. DevOps is not a separate team 3. DevOps is not a tool 4. DevOps is not a one-size-fits-all strategy 5. DevOps is not just automation
  • 10.  The DevOps Lifecycle Looks Like This:  Check in code  Pull code changes for build  Run tests (continuous integration server to generate builds & arrange releases): Test individual models, run integration tests, and run user acceptance tests.  Store artifacts and build repository (repository for storing artifacts, results & releases)  Deploy and release (release automation product to deploy apps) DevOps and Software Development Life Cycle
  • 11.  Configure environment  Update databases  Update apps  Push to users – who receive tested app updates frequently and without interruption  Application & Network Performance Monitoring (preventive safeguard)  Rinse and repeat
  • 13.  Utilizing a DevOps lifecycle, products can be continuously deployed in a feedback loop through:  Infrastructure Automation  Configuration Management  Deployment Automation  Infrastructure Monitoring  Log Management  Application & Performance Management The DevOps Lifecycle = A Rapid Release Cycle with a Strong Feedback Loop
  • 15.  Installation of server hardware and OS  Configuration of servers, networks, storage, etc…  Monitoring of servers  Continous Integration  Continous Delivery  Respond to outages  IT security  Change control  Backup and disaster recovery planning  Automating and Orchestrating entire process DevOps main objectives
  • 16.  With the arrival of tools like Puppet, and Chef, the concept of Infrastructure as Code was born  Infrastructure as code, or programmable infrastructure, means writing code (which can be done using a high level language or any descriptive language) to manage configurations and automate provisioning of infrastructure in addition to deployments. Infrastructure As A Code
  • 17.  What is the relationship between Cloud Computing and DevOps? Is DevOps really just “IT for the Cloud”? Can you only do DevOps in the cloud? Can you only do cloud using DevOps? The answer to all three questions is “no”. Cloud and DevOps are independent but mutually reinforcing strategies for delivering business value through IT DevOps on the Cloud
  • 18.  There’s no formal career track for becoming a DevOps engineer. They are either developers who get interested in deployment and network operations, or sysadmins who have a passion for scripting and coding, and move into the development side where they can improve the planning of test and deployment.  Either way, these are people who have pushed beyond their defined areas of competence and who have a more holistic view of their technical environments.” Prerequisites for DevOps
  • 19.  Ansible  Scripting  Jenkins  Chef  Git  Nexus  Docker  Nagios  Vagrant….etc Tools in Dev Ops
  • 20.  Continuous integration (CI) is a software engineering practice in which isolated changes are immediately tested and reported on when they are added to a larger code base. The goal of CI is to provide rapid feedback so that if a defect is introduced into the code base, it can be identified and corrected as soon as possible.  Time frames are crucial. Integration should be divided into three steps:  commit new functionality and build new application  run unit tests  run Integration/System tests Continuous Integration
  • 21.  The relevant terms here are “Continuous Integration” and “Continuous Deployment”, often used together and abbreviated as CI/CD . Originally Continuous Integration means that you run your “integration tests” at every code change while Continuous Delivery means that you automatically deploy every change that passes your tests.  The Software Development Pipeline  From a high level, a CI/CD pipeline usually consists of the following discrete steps:  Commit. When a developer finishes a change to an application, he or she commits it to a central source code repository.  Build. The change is checked out from the repository and the software is built so that it can be run by a computer. This steps depends a lot on what language is used and for interpreted languages this step can even be absent.  Automated tests. This is where the meat of the CI/CD pipeline is. The change is tested from multiple angles to ensure it works and that it doesn’t break anything else.  Deploy. The built version is deployed to production. Continuous Release and Deployment
  • 22.  Application monitoring and feedback solutions enable you to:  Help steer projects toward successful completion with better application visibility.  Manage and optimize application and infrastructure performance in traditional IT, virtualized, cloud and hybrid environments.  Receive customer feedback in both pre-and post-production phases, resulting in lower costs of errors and changes.  Maximize the value of every customer visit, helping to ensure that more transactions are completed successfully.  Gain immediate visibility into the sources of customer issues that may affect their behavior Continuous Application Monitoring