docs(faq): add page on Continuous Delivery under Software Development

New FAQ page explaining Continuous Delivery concepts, benefits, challenges.

Author: mahatmamahardhikach

pages/faq/software_development/server/what_is_continuous_delivery.md

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+---
+layout: default
+title: What is Continuous Delivery?
+parent: What is a Server?
+grand_parent: Software Development
+description: "What is Continuous Delivery?"
+---
+
+# What is Continuous Delivery
+
+## Table of Contents
+
+- [Introduction](#introduction)
+- [Definition of Continuous Delivery](#definition-of-continuous-delivery)
+- [How Continuous Delivery Works](#how-continuous-delivery-works)
+- [Benefits of Continuous Delivery](#benefits-of-continuous-delivery)
+- [Key Components of Continuous Delivery](#key-components-of-continuous-delivery)
+- [Challenges in Implementing Continuous Delivery](#challenges-in-implementing-continuous-delivery)
+- [Best Practices for Continuous Delivery](#best-practices-for-continuous-delivery)
+- [Conclusion](#conclusion)
+
+## Introduction
+
+As software development evolves, the need for faster and more reliable delivery processes becomes essential. *
+*Continuous Delivery (CD)** ensures that code changes are automatically prepared for deployment, streamlining the path
+from development to production.
+
+## Definition of Continuous Delivery
+
+Continuous Delivery is a software development practice where code changes are automatically built, tested, and prepared
+for release to production. It ensures that the codebase is always in a deployable state, enabling teams to release
+updates more frequently and with confidence.
+
+## How Continuous Delivery Works
+
+1. **Code Changes**: Developers push code to a shared repository.
+2. **Automated Build**: The system compiles the application to ensure it is build-ready.
+3. **Automated Testing**: A suite of tests verifies the functionality, performance, and security of the code.
+4. **Release Staging**: Changes are deployed to a staging environment for further validation.
+5. **Approval Process**: Optional manual or automated approval steps ensure readiness for production.
+6. **Production Deployment**: The code is deployed to production with minimal manual intervention.
+
+## Benefits of Continuous Delivery
+
+- **Faster Releases**: Automates the deployment pipeline, reducing release cycles.
+- **Improved Quality**: Automated testing ensures that only reliable code reaches production.
+- **Reduced Risk**: Small, incremental changes lower the risk of deployment failures.
+- **Better Collaboration**: Encourages communication between development, testing, and operations teams.
+- **Increased Efficiency**: Minimizes manual tasks, freeing up time for innovation.
+
+## Key Components of Continuous Delivery
+
+- **Version Control**: A centralized system (e.g., Git) to manage code changes.
+- **CI/CD Pipelines**: Automation tools like Jenkins, GitLab CI/CD, or CircleCI.
+- **Testing Frameworks**: Comprehensive test suites to validate functionality and performance.
+- **Staging Environment**: A replica of the production environment for testing deployments.
+- **Monitoring Tools**: Systems to track application performance and detect issues post-deployment.
+
+## Challenges in Implementing Continuous Delivery
+
+- **Initial Setup**: Designing and configuring pipelines can be time-consuming.
+- **Legacy Systems**: Integrating CD with older systems may require additional effort.
+- **Testing Coverage**: Insufficient test coverage can undermine the effectiveness of CD.
+- **Cultural Shift**: Teams may need to adapt to new workflows and collaboration practices.
+- **Resource Costs**: Maintaining environments and automation tools can increase operational expenses.
+
+## Best Practices for Continuous Delivery
+
+- **Automate Everything**: From builds to tests and deployments, aim for full automation.
+- **Focus on Testing**: Prioritize comprehensive test coverage to ensure reliability.
+- **Iterate Gradually**: Start with small changes and expand the CD pipeline over time.
+- **Encourage Collaboration**: Foster communication between all stakeholders involved in the pipeline.
+- **Monitor and Optimize**: Continuously monitor the pipeline and make improvements as needed.
+
+## Conclusion
+
+Continuous Delivery is a critical practice for modern software teams, enabling faster, safer, and more reliable
+releases. By automating and streamlining the deployment pipeline, CD reduces manual intervention and enhances the
+overall quality of the software. While it comes with challenges, adopting best practices ensures a smooth implementation
+and reaps the many benefits of this approach.
+