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Devops written by Frank Millstein and has been published by Frank Millstein this book supported file pdf, txt, epub, kindle and other format this book has been release on with Computers categories. More than ever, the effective management of technology is critical for business competitiveness.
For decades, technology leaders have struggled to balance agility, reliability, and security. And yet, high performers using DevOps principles, such as Google, Amazon, Facebook, Etsy, and Netflix, are routinely and reliably deploying code into production hundreds, or even thousands, of times per day.
If the content Devops Handbook not Found or Blank , you must refresh this page manually. Increase profitability, elevate work culture, and exceed productivity goals with this updated and expanded edition of the definitive handbook for DevOps. 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. IT operations departments grew hugely in the last few decades as almost all white-collar workers began to use computers in their jobs. As IT departments grew, so did the number of processes and procedures, which were written to govern the way IT did their work.
Coupled with rapid advances in technologies, IT has increasingly faced pressures to do more, often with less, as corporate budgets were squeezed. Too many staff often have a negative view of their IT operations department.
Taking too long to fix an issue, software upgrades going wrong, slow or badly-performing networks. IT is often seen as a drain on productivity, even though IT itself was bought precisely to raise productivity. Actually, IT is usually divided into 2 parts. Although these 2 parts are part of IT, at best they have often worked in isolation, and at worst have viewed one another with suspicion and hostility. Procedures typically prohibit actions which would increase risk.
This leads to a dysfunctional culture and missed business goals. DevOps is a recognition that cultural improvements are required which entail a sharing of goals aligned with business goals.
As the quote at the top of this article says, DevOps is a culture and practice that aims at unifying both development and operation environments, stressing communication, collaboration and integration between both developers and IT operations staff. Collaboration in this way results in businesses getting the IT systems and services they need quickly, in order to respond to a changing business environment, whilst at the same time maintaining the quality and reliability of those services.
Actually, you can think of DevOps as extending beyond the realm of software developers and IT operations. More broadly, you can think of 'Dev' as representing all the people involved on the project side including software developers, supplier stakeholders, business and user. Since then, further DevOps events throughout the world regularly bring together practitioners to share knowledge and best practices. Any discussion of DevOps requires a reference to agile.
Agile is an umbrella term which encompasses many different software development methods. Some of the most popular are Scrum and XP. Agile software development methods arose in the s as a response to an emerging trend which saw software projects being delivered late, over budget and often with low quality.
In many cases, the delivered software did not do what was expected. These days, agile methods have become ubiquitous in the software development industry. Based upon the 12 agile principles within the Agile Manifesto [2] , agile methods are designed to enable software teams to better work together, to embrace changes to requirements in order to deliver customer satisfaction.
The ways of achieving this include trusting and supporting ways of working, face to face communication, learning lessons, and delivering working software frequently through incremental releases. So, agile and DevOps are not two competing methods.
It is not a question of either one or the other. Agile refers to multiple specific methods which share common characteristics as defined in the Agile Manifesto. Another key inspiration for DevOps has been lean [3].
Lean IT [4] is an extension of the core lean approach to IT products and services. In keeping with the core lean approach, the approach of Lean IT is to eliminate waste, where waste is work which adds no value to a product or service. Lean IT is in its infancy, but its central goal of eliminating waste is raising the prospect of some key benefits to organisations.
Businesses today are operating within extreme competitive pressures. The businesses which will flourish and grow in this situation will be those which can adapt quickly to those pressures and deliver products and services which their customers want. Technology plays a crucial role in all of this because it is the enabler for businesses to achieve constant and strategic innovation. DevOps recognizes that alternative approaches to software development and IT operations are required, if the accelerated demand for IT services is to be met.
Continuing with the way IT has always done things is no longer an option for businesses wanting to succeed. Both businesses and customers now expect IT services to be delivered quickly and reliably.
Moreover, recent developments such as cloud computing and smartphones have prompted a paradigm shift in understanding how IT services are developed and delivered. The simpler, more iterative and incremental approaches of both agile and lean are now needed. DevOps responds to these business and customer expectations for increased agility and stability by increasing the overall performance of both IT development and operations.
According to the State of DevOps report [6] , organisations with high IT performance were twice as likely to achieve or exceed their objectives for efficiency, customer satisfaction and service or product quality. The same study also reported growing evidence that DevOps practices help deliver software faster, more reliably, and with fewer errors.
Due to DevOps still being in its infancy, there are several different perspectives about what DevOps actually means. Look at the graphics below. Because different stakeholders view DevOps from such differing perspectives, is there a common set of values which all DevOps stakeholders can agree upon?
This is all about people and processes. Too much process becomes a burden on productivity. Too little process can hinder communication and collaboration. Enhancing the workflow requires tools and technology to enable automation to take place. 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.
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