CI & CD
DevOps requires a strong understanding of Continuous Integration and Continuous Delivery since it makes it possible to develop and deliver high-quality software to clients on schedule. Continuous integration involves integrating new or fully working code into existing code. By doing this, time that would have been used for project integration is effectively saved. Then, with the least amount of manual work possible, Continuous Delivery gets the code ready for deployment.
Configuration Control
Engineering teams may create robust and dependable systems by using technologies that automatically manage and monitor changes to configuration data. This is possible thanks to configuration management. Complex software systems are made up of parts that vary in complexity and granularity. The three most important configuration management tools are Puppet, Chef, and Ansible.
Monitoring
Continuous monitoring refers to the process and tools required to incorporate monitoring into each stage of your DevOps and IT operations lifecycles. It is beneficial to ensure the health, performance, and dependability of your application and infrastructure as they transition from the development stage to the production stage. The concepts of Continuous Integration and Continuous Deployment (CI/CD) are the foundation of continuous monitoring. CI/CD enables you to develop and deliver software more rapidly and reliably, allowing you to provide continuous value to your customers. Tools like Nagios, Zabbix, Splunk, and others are frequently used
Source Code Management
The coding for source code management is frequently generated and altered by developers. Software for source code management makes it easier to save code, merge new code into older code, track code versions, and other tasks. It also makes it easier for team members to work together on source code. Git, GitHub, and Gitlab are the most popular tools for this purpose.
Containerisation Technology
Containerisation is the process of virtualizing an operating system such that multiple containers running separate applications can share the operating system and system resources. In the typical kind of hardware virtualization, when multiple virtual computers use the same system hardware, this is completely different. The primary providers of containerization are Docker, Kubernetes, and vagrant. As a result, a DevOps engineer must be familiar with containerisation technology.
Mastering Infrastructure as Code Configuration & Management
In data centres, server, storage, and networking infrastructure are managed using infrastructure as code (IaC). Large-scale configuration and management are made simpler by IaC. In contrast, the typical data centre mostly relies on human intervention for infrastructure administration and configuration modifications.