What is DevOps?
DevOps is the new culture, which is the merging of the software Development and IT Operations to improve the speed, productivity and collaboration between development and operation teams. It is a combination of two words: Development and Operations. DevOps a set of software practices that help in better delivery and support by bridging the gap between the development and operation phases, by making use of certain techniques and tools.
Introduction to DevOps
DevOps vs Traditional model
Traditional waterfall model is a step by step process that involves requirement analysis, design, coding, testing, deployment, and maintenance. There are a lot of bottlenecks in this traditional method.
It’s a time-consuming process. If there is an issue with any phase, we cannot switch to the previous step. It might suit a product whose business requirements are very clear and when the team knows what is going to build. To fill all these loopholes, there are a lot of new methodologies being adopted. Agile, DevOps are few of them. To Know Difference Between Agile and DevOps refer this Blog.
In the DevOps model, the software development is done iteratively while each stage builds an unfinished product and continuously improve according to the customer needs. In this model, any changes in the requirement can easily be integrated. This also improves the product quality and involves the customer in each stage to make sure that we are building the right product.
The stages include in DevOps are continuous planning, continuous development, continuous integration, and continuous delivery and optimization. This model suits application that needs better support and fault tolerance.
By making the development and operations team to work closely, there can be a significant improvement in flexibility and responsiveness. In this case, the operations team does not have to wait longer, as in the traditional model. If there is an issue in testing, the deployment team can work together with the development and help in the continuous monitoring of the application, by being more responsible.
Resilient and improved productivity
DevOps are suitable for applications where resilience and productivity are the core parts of the business. Fault tolerance is improved with the DevOps model. Because the faults are better fixed when the testing and deployment teams work together and lead time is reduced here. The recovery time is better thus making the application more resilient. This leads to better productivity as the response time, lead time, mean time between failures are reduced.
Creation and innovation
The development team can focus better on driving business in the more creative and innovative way. Since there is enough cooperation among the teams, now the developers can focus on adding more values to the product by experimenting with their new ideas. This paves way for more creativity and innovation in the team.
DevOps Best Practices
Any development done by the developer is immediately integrated with the deployment stage and this leads to building and testing of software. Any issues or bugs are fixed at a faster rate and thus making the application to be more fault tolerant. Deployment team will work along with the development team in case of bugs or issues.
Having shorter development cycles lead to reliable software releases. When the software has frequent releases, this can assure better speed and more reliable work.
Everyone in the team is very much aware of the frequent bugs or issues, thus making them ready for testing and monitoring the application in a better way. This can assure better product quality and improved customer satisfaction.
Automation can reduce a lot of time and effort. Adopting the strategy of automation can be the best thing in the DevOps culture. Manual intervention is error-prone and time-consuming. For a model like DevOps, automation is the key that improves speed, reliability, consistency. This also reduces dependency and the team members are more empowered.
There a lot of DevOps tools such as Git, Jenkins, Gradle that are available to adopt the new model and gives better control of the source code.
Virtualization and Containerization
Deploying the application in the virtualized version and wrapping them in a container that alternates the virtualization are good options when it comes to DevOps. Docker helps in containerization of software. Kubernetes is another tool that automating the deployment in containers and scaling them.
What does a DevOps engineer do?
- Adopt multiple automation strategies to reduce the time and effort of the team.
- Work with new deployment tools such as Git, Jenkins, Docker, Kubernetes, and much more.
- Proactive monitoring of issues and bugs and troubleshoot them while building and deploying.
- Collaborate with multiple teams and possess cross-functional team capabilities.
- Work in all phases of software development and deployment.
- Work in agile and leverage automation tools to achieve continuous integration and delivery.
- Monitor and tune the application system performance.
- Work both in coding and infrastructure and maintenance.