DevOps introduction

DevOps
DevOps is a software engineering culture and practice
that aims at unifying software development (Dev) and
software operation (Ops).
DevOps 01 Introduction
DevOps Process
M.M. Heegstra

DevOps
DevOps aims at shorter development
cycles, increased deployment
frequency, and more dependable
releases, in close alignment with
business objectives.
DevOps Process
M.M. Heegstra

DevOps
The main characteristic of the DevOps movement is to
strongly advocate automation and monitoring all the
steps of software construction.
From integration, testing, releasing to deployment and
infrastructure management.
DevOps Process
M.M. Heegstra

DevOps
Questions
1. What aims DevOps?
2. What is the main characteristic of the DevOps movement?
DevOps Process
M.M. Heegstra

DevOps
Questions & Answers
1. What aims DevOps?
• Unifying software development and software operation
• Shorter development cycles
• Increased deployment frequency
• More dependable releases
2. What is the main characteristic of the DevOps movement?
• Advocate automation and monitoring all the steps of software construction
DevOps Process
M.M. Heegstra

The use of DevOps
DevOps is not only for supporting IT, it can also be used to support the business strategy and
to improve business processes.
The intention of DevOps can be to establish the software and IT services supply chain to
support the business and to manage the whole process to maturity.
DevOps Process
M.M. Heegstra

The use of DevOps
The DevOps framework should support business
outcomes directly, not only collaboration with
development and operation for IT services.
The use of DevOps should be evaluated by business
outcome, not by an IT project scope and IT outcome.
DevOps Process
M.M. Heegstra

DevOps Process
The use of DevOps
DevOps is not a single tools, methodology, skill set or
organization structure.
DevOps is a framework combining all of these for
organizations to establish stream-lined processes to
enable the business to operate faster and react to
changes more quickly.
DevOps can also enable maturity by using the Plan-Do-
Check-Act cycle.
DevOps 01 Introduction M.M. Heegstra

The use of DevOps
Questions
1. What can DevOps be used for?
2. What is an intention of DevOps?
3. What should the DevOps framework support?
4. By what should the DevOps use be evaluated?
5. What is DevOps?
5. By using which cycle can DevOps enable maturity?
DevOps Process
M.M. Heegstra

The use of DevOps
Questions & Answers
1. What can DevOps be used for?
• Supporting IT
• Supporting business strategy
• Improve business processes
2. What is an intention of DevOps?
• To establish software and IT services supply chain to support the business
• To manage the whole process to maturity
DevOps Process
M.M. Heegstra

The use of DevOps
Questions & Answers
3. What should the DevOps framework support?
• Business outcomes
• Collaboration between development and operation
4. By what should the DevOps use be evaluated?
• By business outcome
DevOps Process
M.M. Heegstra

The use of DevOps
Questions & Answers
5. What is DevOps?
• A framework combining tools, methodology, skill sets and organization structures
6. By using which cycle can DevOps enable maturity?
• The Plan-Do-Check-Act cycle
DevOps Process
M.M. Heegstra

DevOps Culture
DevOps initiatives can create cultural change in
companies by transforming the way Operation,
Developers and Testers collaborate during the
development and delivery processes.
Getting these groups to work cohesively is a critical
challenge in DevOps adoption.
DevOps Process
M.M. Heegstra

DevOps Culture
DevOps principles demand strong interdepartmental
communication.
Team building and other employee engagement
activities are often used to create an environment that
fosters this communication and cultural change.
DevOps Process
M.M. Heegstra

DevOps Culture
Questions
1. What can be created by DevOps initiatives?
2. What is a critical challenge in DevOps adoption?
3. What can be done to create interdepartmental communication?
DevOps Process
M.M. Heegstra

DevOps Culture
Questions & Answers
1. What can be created by DevOps initiatives?
• Cultural change
2. What is a critical challenge in DevOps adoption?
• Getting Operation, Developers and Testers to work cohesively
3. What can be done to create interdepartmental communication?
• Team building and other employee engagement
DevOps Process
M.M. Heegstra

Goals
The goals of DevOps span the entire delivery pipeline.
They include:
1. Improved deployment frequency
2. Faster time to market
3. Lower failure rate of new releases
4. Shortened lead time between fixes
5. Faster mean time to recovery
DevOps Process
M.M. Heegstra

Goals
Simple processes become increasingly programmable
and dynamic, using a DevOps approach.
DevOps aims to maximize the predictability, efficiency,
security, and maintainability of operational processes.
Very often, automation supports this objective.
DevOps Process
M.M. Heegstra

DevOps Process
Goals
DevOps integration targets product delivery, continuous
testing, quality testing, feature development, and
maintenance releases in order to improve reliability
and security and provide faster development and
deployment cycles.
Many of the ideas (and people) involved in DevOps
came from the enterprise systems management and
agile software development movements.

Goals
Questions
1. What is the span of the goals of DevOps?
2. What are five goals of DevOps?
3. What is an outcome of using a DevOps approach?
4. What aims DevOps to maximize?
5. What targets DevOps integration?
DevOps Process
M.M. Heegstra

Goals
Questions & Answers
1. What is the span of the goals of DevOps?
• The entire delivery pipeline
2. What are five goals of DevOps?
• Improved deployment frequency
• Faster time to market
• Lower failure rate of new releases
• Shortened lead time between fixes
• Faster mean time to recovery
DevOps Process
M.M. Heegstra

Goals
Questions & Answers
3. What is an outcome of using a DevOps approach?
• Simple processes become increasingly programmable and dynamic
4. What aims DevOps to maximize?
• Predictability
• Efficiency
• Security
• Maintainability of operational processes
DevOps Process
M.M. Heegstra

Goals
Questions & Answers
5. What targets DevOps integration?
• Product delivery
• Continuous testing
• Quality testing
• Feature development
• Maintenance releases
DevOps Process
M.M. Heegstra

Benefits
Benefits when using DevOps are:
1. Significantly shorter time to market
2. Improved customer satisfaction
3. Better product quality
4. More reliable releases
5. Improved productivity and efficiency
6. Increased ability to build the right product by fast
experimentation
DevOps Process
M.M. Heegstra

Benefits
Questions
1. What are the benefits when using DevOps?
DevOps Process
M.M. Heegstra

Benefits
Questions & Answers
1. What are the benefits when using DevOps?
• Significantly shorter time to market
• Improved customer satisfaction
• Better product quality
• More reliable releases
• Improved productivity and efficiency
• Increased ability to build the right product by fast experimentation
DevOps Process
M.M. Heegstra

DevOps WorkFlow
DevOps Process
M.M. Heegstra

Toolchain stages
The stages in a DevOps toolchain are:
1. Plan
2. Code
3. Build
4. Test
5. Release
6. Deploy
7. Operate
8. Monitor
DevOps Process
M.M. Heegstra

Toolchain stages
Questions
1. What are the stages in a DevOps toolchain?
DevOps Process
M.M. Heegstra

Toolchain stages
Questions & Answers
1. What are the stages in a DevOps toolchain?
1. Plan
2. Code
3. Build
4. Test
5. Release
6. Deploy
7. Operate
8. Monitor
DevOps Process
M.M. Heegstra

Tools categories
As DevOps is intended to be a cross-
functional mode of working, rather
than a single DevOps tool there are sets
of multiple tools, the toolchains.
DevOps Process
M.M. Heegstra

Tools categories
The DevOps tools fit into the categories:
1. Code | Code development and review, source code
management tools, code merging
2. Build | Continuous integration tools, build status
3. Test | Continuous testing tools that provide feedback on
business risks
4. Package | Artefact repository, application pre-deployment
staging
5. Release | Change management, release approvals, release
automation
6. Configure | Infrastructure configuration and management,
infrastructure as Code tools
7. Monitor | Applications performance monitoring, end-user
experience
DevOps Process
M.M. Heegstra

Tools categories
Questions
1. What are the categories for DevOps tools?
DevOps Process
M.M. Heegstra

Tools categories
Questions & Answers
1. What are the categories for DevOps tools?
1. Code
2. Build
3. Test
4. Package
5. Release
6. Configure
7. Monitor
DevOps Process
M.M. Heegstra

The enterprise system
The enterprise holds both the System of Engagement
(SoE) and the System of Record (SoR).
The SoE is focused on speed and the SoR is focused on
business continuity.
The problem is how the SoR can adapt quickly to
changes to the SoE to maintain business continuity.
DevOps Process
M.M. Heegstra

The SoR in most enterprises is struggling with the use
of legacy applications/systems and can be helped
through the use of DevOps building stream-lined
processes with just-in-time (JIT) concepts.
DevOps Process
M.M. Heegstra

DevOps Process
Enterprise DevOps is not only an enhancement of
Agile development and continuous delivery but
also IT service management and application
management to enable growth of the business and
to maintain business continuity.

Questions
1. Where stands SoE for?
2. Where stands SoR for?
3. What is the focus of SoE?
4. What is the focus of SoR?
5. What is the problem of SoE and SoR?
6. What is the struggling of SoR?
7. Where stand JIT for?
8. What are the enhancements of DevOps?
DevOps Process
M.M. Heegstra

Questions
1. Where stands SoE for?
• System of Engagement
2. Where stands SoR for?
• System of Record
3. What is the focus of SoE?
• Speed
4. What is the focus of SoR?
• Business continuity
DevOps Process
M.M. Heegstra

Questions
5. What is the problem of SoE and SoR?
• How the SoR can adapt quickly to changes to the SoE to maintain business continuity
6. What is the struggle of SoR in most enterprises?
• The use of legacy applications
7. Where stands JIT for?
• Just In Time
DevOps Process
M.M. Heegstra

Questions
8. What are the enhancements of DevOps?
• Agile development
• Continuous delivery
• The growth of IT service management and Application management
• To maintain business continuity
DevOps Process
M.M. Heegstra

Just In Time
JIT is an inventory management method whereby
materials, goods, and labour are scheduled to arrive or
be replenished exactly when needed in the production
process.
DevOps Process
M.M. Heegstra

Just In Time
The goal of DevOps is to establish stream-lined just-in-
time (JIT) business processes. DevOps aims to
maximize business outcomes, such as increasing sales
and profitability, enhancing business speed, or
minimizing operating cost, by aligning just-in-time
business processes.
DevOps Process
M.M. Heegstra

Just In Time
Questions
1. What is JIT?
2. What is the outcome of establish a streamlined JIT business processes?
DevOps Process
M.M. Heegstra

Just In Time
Questions & Answers
1. What is JIT?
• An inventory management method
• Materials, goods and labour are scheduled exactly when needed
2. What is the outcome of establish a streamlined JIT business processes?
• Increasing sales and profitability
• Enhancing business speed
• Minimizing operating cost
DevOps Process
M.M. Heegstra

DevOps Process
Supply Chain
DevOps means establishing the IT service supply chain
in the business in the same way as the supply chain for
other products is embedded within the business.
It is a big paradigm shift from software delivery to
providing IT services.

Supply Chain
Questions
1. What is a big paradigm shift?
DevOps Process
M.M. Heegstra

Supply Chain
Questions & Answers
1. What is a big paradigm shift?
• Establishing the IT service supply chain in the same way as the supply chain for other
products are embedded within the business
• Software delivery to providing IT services
DevOps Process
M.M. Heegstra

DevOps Process
Architecture
From an architecture perspective, DevOps needs to
establish an automated quick deployment system.
There are many methodologies and tools which can be
utilized.
Each organization has to think and build up their own
DevOps process to improve the business.

Architecture
Questions
1. What does DevOps needs to establish?
2. How can DevOps do that?
DevOps Process
M.M. Heegstra

Architecture
Questions & Answers
1. What does DevOps needs to establish?
• An automated quick deployment system
2. How can DevOps do that?
• With methodologies and tools
DevOps Process
M.M. Heegstra

Understanding the concepts
When implementing DevOps, there are many sources of
knowledge, methodologies, practices, and tools to
choose from.
Understanding the concepts of DevOps is important for
the staff to carry out the processes efficiently by
following the right processes.
DevOps Process
M.M. Heegstra

Architecture
Questions
1. Which sources can be used when implementing DevOps?
2. Why is understanding the concepts of DevOps important?
DevOps Process
M.M. Heegstra

Architecture
Questions & Answers
1. Which sources can be used when implementing DevOps?
• Knowledge
• Methodologies
• Practices
• Tools
2. Why is understanding the concepts of DevOps important?
• The staff can carry out the processes more efficiently when following the right
processes
DevOps Process
M.M. Heegstra

The pillars and foundation
DevOps consists of 3 pillars and a foundation
1. Disciplined Agile
2. Continuous Delivery
3. IT Service Management
4. TPS (lean) concept as foundation
DevOps Process
M.M. Heegstra

Architecture
Questions
1. Of which pillars consists DevOps?
2. Of which foundation consists DevOps?
DevOps Process
M.M. Heegstra

Architecture
Questions & Answers
1. Of which pillars consists DevOps?
• Discipline Agile
• Continuous Delivery
• IT Service Management
2. Of which foundation consists DevOps?
• TPS (lean) concept as foundation
DevOps Process
M.M. Heegstra

The pillars and foundation | Disciplined Agile
A disciplined Agile development team is a key to the success of a DevOps implementation.
Disciplined Agile means:
1. Stabilized Velocity
2. Adaptability for change
3. Always release high quality bug free code
DevOps Process
M.M. Heegstra

A more frequent and faster release cycle of IT services
to react to business changes depends on the speed of
development.
The quality of work is the most important item and this
can be supported by splitting work into small tasks.
DevOps Process
M.M. Heegstra

The concept of JKK (Ji-Koutei-Kanketsu) helps keep a
high quality of work.
JKK means 100% completion of an item.
DevOps Process
M.M. Heegstra

The Definition of Done or completion must be defined
clearly for everybody.
The product owner may change the mission from not
only managing product backlogs but also by planning
the operating cost of IT service.
DevOps Process
M.M. Heegstra

Questions
1. What is a key to success of a DevOps implementation?
2. What does Disciplined Agile means?
3. Frequent and faster release cycle to react to business changes depends on?
4. What is the most important item?
5. And how it be supported?
6. What means JKK?
7. What has to be defined clearly for everybody?
8. What may the product owner change?
DevOps Process
M.M. Heegstra

Questions & Answers
1. What is a key to success of a DevOps implementation?
• A disciplined Agile development team
2. What does Disciplined Agile means?
• Stabilized Velocity
• Adaptability for change
• Always release high quality bug free code
DevOps Process
M.M. Heegstra

Questions & Answers
3. Frequent and faster release cycle to react to business changes depends on?
• The speed of development
4. What is the most important item?
• The quality of work
5. And how can it be supported?
• By splitting work into small tasks
DevOps Process
M.M. Heegstra

Questions & Answers
6. What means JKK?
• 100% completion of an item
7. What has to be defined clearly for everybody?
• The Definition of Done
8. What may the product owner change?
• Managing product backlogs
• Planning operation cost of IT service
DevOps Process
M.M. Heegstra

The pillars and foundation | Continuous Delivery
Continuous delivery is the automated implementation
of the application build, deploy, test and release
processes.
A key focus is on testing such as acceptance testing and
performance testing.
DevOps Process
M.M. Heegstra

Every organization will have differences in the
implementation of their deployment pipeline
depending on their value stream for releasing software.
A key success factor is to establish only a single
deployment pipeline for IT services.
DevOps Process
M.M. Heegstra

Questions
1. What is Continuous Delivery?
2. What is the key focus?
3. The differences in implementation of deployment pipelines is depended on?
4. What is the key success factor?
DevOps Process
M.M. Heegstra

Questions & Answers
1. What is Continuous Delivery?
• The automated implementation of application build, deploy, test and release
processes
2. What is the key focus?
• Testing, acceptance and performance
DevOps Process
M.M. Heegstra

Questions & Answers
3. The differences in implementation of deployment pipelines is depended on?
• The value stream for releasing software
4. What is a key success factor?
• Establishing a single deployment pipeline for IT services
DevOps Process
M.M. Heegstra

The pillars and foundation | IT service management
As technology is a core component of most business
processes, continuous or high availability of IT services
is critical to the survival of the business as a whole.
This is achieved by introducing risk reduction measures
and recovery options.
DevOps Process
M.M. Heegstra

Like all elements of IT service management,
successful implementation of the service continuity
process can only be achieved with senior
management commitment and the support of all
members of the organization.
Ongoing maintenance of the recovery capability is
essential if it is to remain effective.
DevOps Process
M.M. Heegstra

Service continuity is an essential part of the warranty
(fitness for purpose) of a service.
If service continuity cannot be maintained and/or
restored in accordance with the requirements of the
business, then the business will not experience the
value that has been promised.
Without continuity the utility (fitness for purpose) of
the service cannot be accessed.
DevOps Process
M.M. Heegstra

Traditional IT service management (ITSM) best practice
such as ITIL looks heavyweight and not suited for the
quick processes of DevOps.
It is necessary to think about how to reduce
management workload.
DevOps Process
M.M. Heegstra

It is necessary to realign ITSM for DevOps, creating
light-weight ITSM which is strictly focuses on business
continuity with a set of minimum required information
MRI.
The MRI set for each organization depends on their
business
DevOps Process
M.M. Heegstra

Questions
1. What is critical to the survival of the business as a whole?
2. How is this achieved?
3. How can successful implementation of service continuity process be achieved?
4. How can it be remain effective?
5. What is an essential part of the warranty of a service?
6. What will happen if service continuity cannot be maintained and/or restored?
7. What cannot be accessed without continuity?
8. Warranty and utility is also called?
DevOps Process
M.M. Heegstra

Questions & Answers
1. What is critical to the survival of the business as a whole?
• Continuous or high availability of IT services
2. How is this achieved?
• By introducing risk reduction measures and recovery options
3. How can successful implementation of service continuity process be achieved?
• With senior management commitment and support of the whole organization
4. How can it be remain effective?
• With ongoing maintenance of the recovery capability.
DevOps Process
M.M. Heegstra

Questions & Answers
5. What is an essential part of the warranty of a service?
• Service continuity
6. What will happen if service continuity cannot be maintained and/or restored?
• The business will not experience the promised value
7. What cannot be accessed without continuity?
• The utility of service
8. Warranty and utility is also called?
• Fitness for purpose
DevOps Process
M.M. Heegstra

The pillars and foundation | TPS concept as foundation
Building a stream-lined supply chain of IT services is
difficult because there are many items and it is
necessary to change your mind-set from the familiar
existing development cycle and its methodologies.
DevOps Process
M.M. Heegstra

The concepts of TPS (Toyota Production
System), which includes JIT and automation, can
help.
JIT means building up a stream-lined supply
chain with one-piece flow.
And automation means automating as much as
possible and stopping the entire process when a
defect occurs.
DevOps Process
M.M. Heegstra

The process needs to be designed and staff
educated for the above two concepts.
The other key issue is the management cycle of
Development and Operation.
This needs to be changed to work in an Agile way
including synchronization between development
and operation on a weekly or daily basis.
DevOps Process
M.M. Heegstra

Questions
1. Why is it difficult to build a stream-lined IT services supply chain?
2. Where stands TPS for?
3. What means JIT?
4. What means automation?
5. What is another key issue?
6. What needs to be changed to work in an Agile way?
DevOps Process
M.M. Heegstra

Questions & Answers
1. Why is it difficult to build a stream-lined IT services supply chain?
• There are many items
• To need to change the mind-set
2. Where stands TPS for?
• Toyota Production System
3. What means JIT?
• Building up a stream-lined supply chain with one-piece flow
DevOps Process
M.M. Heegstra

Questions & Answers
4. What means automation?
• Automating as much as possible and stopping the entire process when a defect occurs
5. What is another key issue?
• The management cycle of Development and Operation
6. What needs to be changed to work in an Agile way?
• The synchronization between development and operation on a weekly or daily basis
DevOps Process
M.M. Heegstra

Team roles
It is recommended that a DevOps team is set up in the organization in order to
commit to business continuity of the IT service.
The team roles are:
1. Process Master / Scrum Master
2. Service Master / Product Owner
3. DevOps Engineer
4. Gatekeeper/Release coordinator
5. Reliability Engineer (Optional)
6. Development Team
7. Operation Team
DevOps Process
M.M. Heegstra

Team roles
Questions
1. What are the roles in a DevOps team?
DevOps Process
M.M. Heegstra

Team roles
Questions & Answers
1. What are the roles in a DevOps team?
• Process Master / Scrum Master
• Service Master / Product Owner
• DevOps engineer
• Gatekeeper/Release coordinator
• Reliability Engineer
• Development Team
• Operation Team
DevOps Process
M.M. Heegstra

Team roles | Process Master/Scrum Master
Leads the team and facilitates.
Implements visual control across the entire process and
has a strong focus on establishing a stream-lined
process with one-piece flow.
DevOps Process
M.M. Heegstra

Team roles | Process Master/Scrum Master
Visual control means ‘Does everybody easily
understand the situation by just looking at the boards
without explanation?’
It does not show the status.
It can be expressed the problems occurred or not.
DevOps Process
M.M. Heegstra

Team roles | Service Master/Product Owner
Has all the responsibility for providing IT services JIT.
Managing and prioritizing product backlogs and the
new additional responsibility of cost planning for the IT
service.
DevOps Process
M.M. Heegstra

Questions
1. What are the tasks of the Process Master/Scrum Master?
2. What does visual control means?
3. What doesn’t visual control show?
4. What is a responsibility of the Process Master?
DevOps Process
M.M. Heegstra

Questions & Answers
1. What are the tasks of the Process Master/Scrum Master?
• Leads the team and facilitates
• Implements visual control across the entire process
• Focus on establishing a stream-lined process with one-piece flow
• Managing and prioritizing product backlogs
DevOps Process
M.M. Heegstra

Questions & Answers
2. What does visual control means?
• Everybody easily understand the situation by just looking at the boards without
explanation
3. What doesn’t visual control show?
• The status
4. What is a responsibility of the Process Master?
• Providing IT services JIT
• Cost planning for IT services
DevOps Process
M.M. Heegstra

Team roles | DevOps Engineer
Has a mission to improve and maintain automated
process.
The engineer will examine the whole automated
process and tools.
There are many tools required in the DevOps process.
DevOps Process
M.M. Heegstra

Questions
1. What is a mission of a DevOps Engineer?
2. What does he examine?
DevOps Process
M.M. Heegstra

Questions & Answers
1. What is a mission of a DevOps Engineer?
• To improve and maintain automated process
2. What does he examine?
• The whole automated process and tools
DevOps Process
M.M. Heegstra

Team roles | Gatekeeper/Release coordinator
Responsible for monitoring the operational status and
progress of the next release of the IT service.
Make go/no go decisions about deployment according
to criteria including security, compliance, regulatory
requirements, maturity of operation team and their
process views.
DevOps Process
M.M. Heegstra

Questions
1. What is the responsibility of the Gatekeeper?
2. What are decisions criteria for the go/no go?
DevOps Process
M.M. Heegstra

Questions & Answers
1. What is the responsibility of the Gatekeeper?
• Monitoring the operational status and progress of the next release of the IT service
• Make go/no go decisions about deployment
2. What are decisions criteria for the go/no go?
• Security
• Compliance
• Regulatory requirements
• Maturity of operation ream and their process views
DevOps Process
M.M. Heegstra

Team roles | Reliability Engineer (Optional)
Monitors the services in the development process and
deal with problems with the service during its
execution.
Monitors the process status to ensure that the
development team are following the rules of CI
(Continuous Integration) and CD (Continuous Delivery)
strictly.
Monitors and manage the flow of complex build
pipeline. Have a mission to improve the test process.
DevOps Process
M.M. Heegstra

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DevOps introduction

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