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The DevOps lifecycle explained

March 23, 2020

The DevOps lifecycle explained
There are so many buzzwords right now relating to software development—one of the key ones being DevOps. DevOps is just what it sounds like: a compound of the words development and operations, referring to the management of an application’s development lifecycle. The goal of a DevOps program is to shrink the development lifecycle of an application or system and continuously add to its usefulness through ongoing updates and performance evaluations.

This approach allows for better quality control and more agile development, where features and fixes can be added quickly and reliably. How is this accomplished? Through what’s known as a DevOps lifecycle, which is a system of development stages, including:

  • Continuous development
  • Continuous integration
  • Continuous testing
  • Continuous deployment
  • Continuous monitoring
Continuous development
This stage includes the design and coding of an application’s software. It's here you should establish KPIs you expect the application to achieve for your client. After that, development can begin—but continuously, meaning the next phases will provide feedback and help guide coding and KPIs on an ongoing basis.
Continuous integration
Once development starts, integration immediately follows. Continuous integration is central to any DevOps lifecycle and involves developers adding new source code frequently. The new code is built out to spot bugs or issues very early in development so they can be addressed. Code that enables new functions is then integrated continuously with the original code, which is then integrated into systems or applications, where users actually experience them.
Continuous testing
All that new code being written and integrated has to be tested for quality assurance. Testing code in a live environment is the best way to get real results and prove your applications work as intended. This process provides data on various parts of an app and is then used in the continuous development stage of the DevOps cycle to make further improvements.
Continuous deployment
After code has been tested, it’s time to correctly deploy across all of your production servers. As code is deployed continuously, automating this process using configuration management software is key. Containerization tools provide another way to help keep deployment consistent and safe, so changes in newly deployed code won’t crash your most important and highly visible websites.
Continuous monitoring
Monitoring your applications at all times is as important as any other stage in the DevOps lifecycle. This is where you’ll gather critical data both about how the application performs and how it’s used by end users. This is the point where issues like low memory and network issues are discovered and their root cause is rooted out. There are several tools that can help you monitor your applications while improving productivity and increasing reliability.
Remember, each stage of this lifecycle must be carried out simultaneously and continuously until you’ve reached your established KPIs. It’s a proven process that has helped some of the largest organizations in the world achieve development success.
For data center questions, contact Ingram Micro’s data center experts. Contact Samuel Alt at samuel.alt@ingrammicro.com or Nick Vermiglio at nick.vermiglio@ingrammicro.com