The devops handbook download pdf

Lean was added as a key DevOps value because of its focus on the elimination of waste and hence the focus on increasing the useful value which is delivered to the customer.

Successful organisations use metrics to help them improve. Without the data from proper measurements it is impossible to know what needs improving. DevOps recommends measuring people, process and technology performance. DevOps aims to create a culture where people share ideas and issues. This helps to improve communication and collaboration, but helps organisations to improve.

The Three Ways are the prescriptive steps for how an organisation can apply DevOps practices. They are often referred to as the DevOps principles. Create a culture that fosters experimentation, taking risks, learning from failure and understanding that repetition and practice is necessary for mastery. It does however adopt and leverage multiple frameworks and methodologies such as agile, lean and IT Service Management e.

As we said earlier, major inspirations for DevOps have come from both the agile and lean communities. Agile has shown how small self-organising teams, operating with high-trust, delivering small, frequent iterative software releases can dramatically increase the productivity of software development organizations.

Lean has shown how increasing workflow and reducing waste adds value to the business. DevOps is therefore picking, learning from, and integrating the best methods which come from other disciplines. By doing this, DevOps can help IT departments remove bottlenecks and achieve faster lead times and cycle times.

This in turn leads to higher productivity and economic value for the business. There are numerous practices which support The Three Ways. Continuous integration — developers integrating code into a shared repository on a daily basis at a minimum. Each check-in is validated by an automated build on servers which mirror the production environment. Continuous delivery — making sure software is always in a releasable state throughout the lifecycle.

This prioritises keeping the software deployable over adding new features. Continuous testing — executing automated tests as part of the deployment pipeline to obtain immediate feedback on the business risks associated with a software release candidate. Continuous deployment — enabling every change which passes automation tests to be automatically deployed to production.

Can result in multiple deployments per day. Rugged DevOps — including security practices as early in the continuous delivery pipeline as possible to increase cyber security, speed, and quality of releases. ChatOps [10] — a communication approach which allows teams to collaborate and manage many aspects of infrastructure, code and data from a chat room. Kanban [11] — pulling the flow of work through a process at a manageable pace.

Value stream mapping — a lean tool depicting the flow of information, materials and work across functional silos to quantify waste, including time and quality. Improvement Kata — this grew out of the Toyota Production System as a structured way to create a culture of continuous learning and improvement. Theory of constraints — identifying the most important limiting factors which constrains the achievement of goals. Then, systematically improving that constraint until it is no longer a limiting factor.

Most if not all of the DevOps practices just described require tools. A DevOps toolchain is composed of the tools required to support the core DevOps practices. Each element in a toolchain automates tasks in the deployment pipeline. The different tools within the toolchain are connected via APIs [12]. These tools do not need to be from a single vendor. It provides a number of processes that focuses on aligning IT services with the needs of the business [13].

Definitely not. It tries to bring many of the beneficial aspects from development and manufacturing approaches such as agile and Lean to the stability of the IT operations world. The State of DevOps Report discovered that high performing teams deployed 46x more frequently. They also had x faster lead times from commit to deploy. They achieved 96x faster mean times to recover from downtime and they had 5x lower change failure rate. They were also 2x more likely to achieve objectives such as operating efficiency, customer satisfaction and organisational goals [14].

With such startling evidence showing how DevOps can transform IT, the expectation is more organisations will start adopting DevOps. The typical things which DevOps aims to automate includes: release management, configuration management, monitoring tools and control tools.

Lean was added as a key DevOps value because of its focus on the elimination of waste and hence the focus on increasing the useful value which is delivered to the customer. Successful organisations use metrics to help them improve. Without the data from proper measurements it is impossible to know what needs improving. DevOps recommends measuring people, process and technology performance.

DevOps aims to create a culture where people share ideas and issues. This helps to improve communication and collaboration, but helps organisations to improve. The Three Ways are the prescriptive steps for how an organisation can apply DevOps practices.

They are often referred to as the DevOps principles. Create a culture that fosters experimentation, taking risks, learning from failure and understanding that repetition and practice is necessary for mastery. It does however adopt and leverage multiple frameworks and methodologies such as agile, lean and IT Service Management e. As we said earlier, major inspirations for DevOps have come from both the agile and lean communities.

Agile has shown how small self-organising teams, operating with high-trust, delivering small, frequent iterative software releases can dramatically increase the productivity of software development organizations. Lean has shown how increasing workflow and reducing waste adds value to the business. DevOps is therefore picking, learning from, and integrating the best methods which come from other disciplines.

By doing this, DevOps can help IT departments remove bottlenecks and achieve faster lead times and cycle times. This in turn leads to higher productivity and economic value for the business. There are numerous practices which support The Three Ways. Continuous integration — developers integrating code into a shared repository on a daily basis at a minimum. Each check-in is validated by an automated build on servers which mirror the production environment.

Continuous delivery — making sure software is always in a releasable state throughout the lifecycle. This prioritises keeping the software deployable over adding new features. Continuous testing — executing automated tests as part of the deployment pipeline to obtain immediate feedback on the business risks associated with a software release candidate.

Continuous deployment — enabling every change which passes automation tests to be automatically deployed to production. Can result in multiple deployments per day. Rugged DevOps — including security practices as early in the continuous delivery pipeline as possible to increase cyber security, speed, and quality of releases. ChatOps [10] — a communication approach which allows teams to collaborate and manage many aspects of infrastructure, code and data from a chat room.

Kanban [11] — pulling the flow of work through a process at a manageable pace. Value stream mapping — a lean tool depicting the flow of information, materials and work across functional silos to quantify waste, including time and quality. Improvement Kata — this grew out of the Toyota Production System as a structured way to create a culture of continuous learning and improvement.

Theory of constraints — identifying the most important limiting factors which constrains the achievement of goals. Then, systematically improving that constraint until it is no longer a limiting factor. Most if not all of the DevOps practices just described require tools. A DevOps toolchain is composed of the tools required to support the core DevOps practices. Each element in a toolchain automates tasks in the deployment pipeline. The different tools within the toolchain are connected via APIs [12].

These tools do not need to be from a single vendor. It provides a number of processes that focuses on aligning IT services with the needs of the business [13]. Definitely not. It tries to bring many of the beneficial aspects from development and manufacturing approaches such as agile and Lean to the stability of the IT operations world. The State of DevOps Report discovered that high performing teams deployed 46x more frequently. They also had x faster lead times from commit to deploy.

They achieved 96x faster mean times to recover from downtime and they had 5x lower change failure rate. They were also 2x more likely to achieve objectives such as operating efficiency, customer satisfaction and organisational goals [14]. Increase profitability, elevate work culture, and exceed productivity goals through DevOps practices. DevOps Handbook DevOps both as a culture and as a movement comes packed with different practices and methodologies which can bring operations and development teams together in to achieve high-quality software whenever needed making rapid deployments possible.

Moreover, with DevOps practices, companies and organizations can create to further improve their products at a much faster pace than when using traditional approaches. Considering these massive benefits, it is no wonder why DevOps is gaining more and more popularity at a very rapid rate.

Effective software management and development has never been as important as today especially when it comes to business competitiveness.

Therefore, follow the footsteps of those high-performing companies, increase your business profitability, enjoy faster innovation and shorter development cycles, significantly reduced software deployment failures and exceed your business objectives and goals with DevOps. Get this book NOW, increase your business profitability and exceed your business goals and objectives with DevOps practices! The software is increasingly being applied to expand the breadth of operational efficiencies in organizations.

Today, software is changing every component of value chain like logistics, operations, and communications. As was with the industrial automation in the 20th century and its impact on the transformation of design, development, and delivery of physical goods, organizations in today's fast-paced, ever-evolving software market must have a paradigm shift in the way they develop and deliver their software.

While the agile approaches are a huge step forward for the software delivery teams, they alone can't ensure the accelerated rollout of new software. DevOps helps to narrow the gap that exists between development and operations to streamline the general software delivery process. The book has been structured into 6 chapters as follows: -Chapter 1 delves deeper into the fundamentals of DevOps and Agile methodologies where you'll learn all the details about DevOps.

This primer will provide you with the necessary knowledge about DevOps and agile methodologies that you're looking for. Get your copy today!