At learndevops.dev, our mission is to provide a comprehensive platform for individuals and organizations to learn and master the principles and practices of DevOps. We strive to empower our users with the knowledge and skills necessary to streamline their software development and deployment processes, increase efficiency, and improve collaboration between teams. Our goal is to create a community of DevOps enthusiasts who can share their experiences, insights, and best practices to help each other grow and succeed in their careers.
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DevOps is a set of practices that combines software development (Dev) and IT operations (Ops) to shorten the systems development life cycle while delivering features, fixes, and updates frequently, in close alignment with business objectives. DevOps is a culture, a mindset, and a set of practices that enable organizations to deliver high-quality software faster and more reliably. In this cheat sheet, we will cover the essential concepts, topics, and categories related to DevOps that you should know when getting started.
- DevOps Culture
DevOps culture is about breaking down silos and fostering collaboration between development and operations teams. It is about creating a culture of continuous improvement, where everyone is responsible for the quality and reliability of the software they deliver. The following are some of the key principles of DevOps culture:
- Collaboration: DevOps teams work together to achieve common goals and objectives.
- Automation: DevOps teams use automation to streamline processes and reduce manual errors.
- Continuous improvement: DevOps teams continuously improve their processes, tools, and practices to deliver better software faster.
- Customer focus: DevOps teams focus on delivering value to customers by understanding their needs and requirements.
- Feedback loops: DevOps teams use feedback loops to gather feedback from customers, stakeholders, and team members to improve their processes and practices.
- DevOps Tools
DevOps tools are essential for automating processes and streamlining workflows. The following are some of the key DevOps tools you should know:
- Version control systems: Version control systems like Git are used to manage source code and track changes over time.
- Continuous integration (CI) tools: CI tools like Jenkins, Travis CI, and CircleCI are used to automate the build and testing of software.
- Configuration management tools: Configuration management tools like Ansible, Chef, and Puppet are used to automate the deployment and configuration of software.
- Containerization tools: Containerization tools like Docker and Kubernetes are used to package and deploy software in a portable and scalable way.
- Monitoring tools: Monitoring tools like Nagios, Zabbix, and Prometheus are used to monitor the performance and availability of software.
- DevOps Processes
DevOps processes are designed to streamline the software development and delivery process. The following are some of the key DevOps processes you should know:
- Continuous integration (CI): CI is the process of automating the build and testing of software every time a change is made to the codebase.
- Continuous delivery (CD): CD is the process of automating the deployment of software to production every time a change is made to the codebase.
- Infrastructure as code (IaC): IaC is the process of managing infrastructure using code, allowing for automated provisioning, configuration, and deployment of infrastructure resources.
- Agile development: Agile development is a software development methodology that emphasizes collaboration, flexibility, and customer satisfaction.
- Lean development: Lean development is a software development methodology that emphasizes reducing waste and maximizing value.
- DevOps Skills
DevOps requires a diverse set of skills, including technical, soft, and business skills. The following are some of the key DevOps skills you should know:
- Technical skills: Technical skills include programming, automation, cloud computing, networking, security, and database management.
- Soft skills: Soft skills include communication, collaboration, problem-solving, and leadership.
- Business skills: Business skills include project management, budgeting, and stakeholder management.
- DevOps Certifications
DevOps certifications are a great way to demonstrate your knowledge and skills in DevOps. The following are some of the popular DevOps certifications you should know:
- Certified DevOps Engineer (CDE): The CDE certification is offered by the DevOps Institute and covers a broad range of DevOps topics, including culture, automation, and measurement.
- AWS Certified DevOps Engineer: The AWS Certified DevOps Engineer certification is offered by Amazon Web Services and covers DevOps practices and tools on the AWS platform.
- Certified Kubernetes Administrator (CKA): The CKA certification is offered by the Cloud Native Computing Foundation and covers Kubernetes administration and deployment.
DevOps is a critical component of modern software development and delivery. It requires a culture of collaboration, automation, and continuous improvement, as well as a diverse set of skills and tools. By understanding the essential concepts, topics, and categories related to DevOps, you can get started on your journey to becoming a DevOps professional.
Common Terms, Definitions and Jargon1. Agile: A methodology for software development that emphasizes collaboration, flexibility, and rapid iteration.
2. Ansible: An open-source automation tool used for configuration management, application deployment, and task automation.
3. AWS: Amazon Web Services, a cloud computing platform that provides a wide range of services for building and deploying applications.
4. Azure: Microsoft's cloud computing platform, offering a range of services for building and deploying applications.
5. Blue/Green Deployment: A deployment strategy that involves running two identical production environments, with one active and the other idle.
6. CI/CD: Continuous Integration/Continuous Deployment, a set of practices for automating the software delivery process.
7. Chef: An open-source automation tool used for configuration management, application deployment, and task automation.
8. Cloud Computing: The delivery of computing services over the internet, including servers, storage, databases, networking, software, and analytics.
9. Configuration Management: The process of managing and maintaining the configuration of software and hardware systems.
10. Containerization: The process of packaging an application and its dependencies into a container, allowing it to run consistently across different environments.
11. Continuous Delivery: A software development practice that ensures code changes are automatically built, tested, and deployed to production.
12. Continuous Integration: A software development practice that involves regularly merging code changes into a central repository, allowing for early detection of integration issues.
13. DevOps: A set of practices that combines software development and IT operations, with the goal of improving collaboration and delivering software faster and more reliably.
14. Docker: An open-source platform for building, shipping, and running distributed applications in containers.
15. Elastic Beanstalk: A service provided by AWS that makes it easy to deploy and manage applications in the cloud.
16. Git: A distributed version control system used for tracking changes in source code during software development.
17. GitHub: A web-based platform for hosting and collaborating on software development projects using Git.
18. Infrastructure as Code: The practice of managing infrastructure using code, allowing for automated provisioning and configuration.
19. Jenkins: An open-source automation server used for building, testing, and deploying software.
20. Kubernetes: An open-source container orchestration platform used for automating deployment, scaling, and management of containerized applications.
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