The journey from Agile to DevOps
These days, DevOps and Agile are two of the most frequently used terms in the software development lifecycle context, though the debate of benefits of DevOps also continues. When Agile philosophy had started gaining traction in the 90’s It was focussed on the key matrix of accelerating software development. With the emergence of DevOps, this journey is reaching another scale, where it's not only the development team which is undergoing transformation but also the infrastructure teams that are changing in how they deploy the solution.Designing an Agile and DevOps-focused development environment requires many changes in how teams operate. For a corporation to shift from the traditional, "waterfall"- style of development to continuous delivery driven DevOps is a drastic transition for any firm, not easily achievable by corporations. While quite a few corporations have started the DevOps journey by embracing aspects of Agile, Automation testing and the continuous delivery process keep them from truly embracing it.
Stages of AgileTo shift towards DevOps a corporation needs to undertake a few changes in its processes, to embrace this practice. The software delivery process includes a significant number of procedures, through which corporation advances gradually starting from one stage to another. The different parts of Agile are outlined and challenges that need to be overcome by the corporation are outlined below.
- Waterfall: The code is written, tested and deployed in a sequential manner. All the necessary groups, including engineers, operations, and QA, are required to work individually in silos and collaborative working in teams is a rare incidence.
- The Beginning of Agile: Organizations that have moved towards short development sprints and test driven development can shift from Waterfall to Agile much faster. One of the key changes in development philosophy while moving from Waterfall to Agile is how requirements are outlined and development schedule planned, traditionally Waterfall driven development required detailed specification and phase driven delivery, in an Agile model this whole lifecycle is compressed within short cycles and the focus shifts from long process mapping and discovery sessions to creating mockups and short sprints.
Shifting from Agile to DevOps
This comprises predominantly of two stages:
- Continuous Integration: Tools like Jenkins, CircleCi etc automate the process of building and integrating software. Post the development stage which also incorporates testing, issues are recognized and the bugs that were identified during the process are fixed. All resources are simultaneously employed in resolving the issues without letting it impact the development and deployment processes.
- Continuous Delivery: This is an integral part of the DevOps transformation. Corporations that achieve continuous delivery have embraced a completely automated deployment process. In addition to this improvement, Ops and QA groups work as a team together, continually in a state of harmony.
Expanding Testing Agility Corporations that have embraced DevOps transformation journey by embracing devices and tools that identify with development, production, and delivery are probably going to discover their agility is being hindered due to the absence of automated testing. For these associations, enhancing testing effectiveness is the most common approach to become relatively more agile.DevOps based techniques and tools enhance the proficiency of the testing some portion of the delivery pipeline. Some of these could include:
- Cloud-based testing
- Parallel testing
- Automated testing
- Shift-left testing
These techniques for enhancing agility by making testing more proficient have so far not been a focal point of the DevOps discussion. Be that as it may, they constitute straightforward, minimal effort methods for developing more agile organizations with a specific end goal to progress in the direction of the objective of full continuous delivery.
Importance of Automation Testing
Importance of Automation testing automation in testing is a prerequisite for moving towards DevOps.
In This day and age, a corporation building an application must leverage DevOps from moving to a Git-Hub archive, to incorporating Jenkins, it needs quite a few tools to automate the process. It is important that the developers who engineer the application code can conveniently collaborate with the QA group that tests it and the IT Ops staff who deploy code.
If an organization lacks automation then delivering a proper functional and seamless product, in the end, becomes difficult for the company. This reduces the impact and value of development that an organization has carried out. Continuous delivery is not possible even if deployment and optimized development have taken place, automated testing of the process is the most important factor, that determines the success.
DevOps is basically a mindset and culture that is imbibed in an organization. It demands the coordinated effort of individuals.
Reaching a seamless degree of DevOps takes time. Netflix took multiple iterations before it reaches this degree of maturity Associations need to upgrade the practices they built up in the time of waterfall advancement. They additionally need to guarantee that all phases of their work process are completely agile, which requires an entire arrangement of DevOps techniques and tools.
Gopiraju M (Masters in CSE) is a full-stack developer at Navtech. He has experience of building over 100+ apps allows him to rapidly architect and design solutions. His ability to explain complex technologies in simple. He has a lot of passion for writing clean code and having a clean deployment/release process. Also, his practical ways have resulted in him becoming a popular speaker at colleges, universities, and conferences.