DevOps is basically Dev+Ops which means development and IT operations teams working together.
Project deployment and delivery differs organization to organization and also the approach towards making things possible along with those differences. We as a team take efforts to make sure that project deliveries should be on time as well as with no defects. So how do you guarantee that, here is a new solution for making your development and operations team work together and ensure that they deliver the best possible solution within a stipulated period of time?
Continuous Integration means building and testing code continuously as soon as the developer checks the code into the repository. There are different ways and tools available in the market to do that but if you want to start or you are a beginner you can go with the free source available.
One may not have an idea of what DevOps engineers do. They automate the whole process. What that results in is essentially Continuous integration, Continuous deployment and Continuous delivery.
Continuous Deployment means after testing of code it should go to the pilot server to make sure that everything is working properly and if you have any defect or could find bugs then you can revert to the previous version immediately. Everyone knows about the “New York Stock Exchange” and how one bug can affect the transaction of a million dollars. This requires change in the org process, but it’s worth it for the benefits.
Continuous Delivery means once we get approval that the pilot server is working fine then we can prepare for production deployment and this will make sure that everything is working properly and for the fact one should go for Blue and Green deployment strategy. Depending on how you can map into the physical environment, one can go with the available options such as ramped, recreate, A/B testing strategies.
Automation plays a vital role in this process because this gives us a time frame to work and get the high quality results back at the same time. The window to solve the problem and error resolution is very high at the same time. To do so we need to set up the pipeline and infrastructure as code with the DevOps tools.
Though it encompasses the entire Software Development Lifecycle, there are many tools to pick from — as we all know, no tool fits all. There are several that have scaled up their capabilities and provide a broad range of support for nearly any scenario.
Tools in this software development lifecycle fit into the following sub-categories:
- Development and Building tools
The recommended SCM (Source Control Management) technology is GIT, so our SCM tool must have excellent GIT support. For CI to execute builds in an ephemeral containerized environment is an absolute must. Gitlab’s core functionality provides a flawless GIT repository management tool. Its web-based user-interface is the most verbose and easy to use. Gitlab provides everything you need with its free tier offering and comes in both SaaS and PaaS.
Automated Testing and code analysis tools
- Selenium — Selenium is the best tool for the testing purpose to be served well. Mostly recommended for building and running a Java-based application. However, if you’re doing a full web application with multiple technologies, it might get a little clunky for the non-Java bits.
- SonarQube — It empowers all developers to write cleaner and safer code. And it is the code review tool which detects the bugs, vulnerabilities, and code smells in your code automatically. It can integrate with your existing setup to enable continuous code inspection across your project branches and pull requests.
Deployment and Delivery automation tools
- AWS code deploy —AWS CodeDeploy is an automated deployment tool offered by Amazon. It automates software deployments to a variety of computing services like AWS Lambda, Amazon EC2, and on-premises servers. This makes it easy to release new features and reduce downtime during application deployment while handling complex updates.
AWS CodeDeploy offers reliable and rapid deployments. It maximizes your application availability during the software deployment process and reduces downtime.Easy to launch and track application deployment status through AWS CLI or AWS management console. Easily integrates with the current software release process or continuous delivery toolchain. Easy to adopt as it is, and works with any application. CodeDeploy can deploy simultaneously to the same set of instances.
- Jenkins — Jenkins is one of the world’s leading open-source automation servers written in Java. It provides hundreds of dashboard plugins to build, deploy, and automate any project. It is a server-based system that operates in servlet containers like Apache Tomcat. It’s available for Windows, Linux, macOS, and other operating systems. The major companies currently using Jenkins are ADP, Wells Fargo, Bank of America, JPMorgan, American Express due to its advantages:
- Built-in GUI tool for quick updates and has less maintenance.
- Easily configured and setup
- Available plugins for building and testing projects are >400
- Expands the scale of automation
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