CI/CD Service

Definition

Continuous Integration and Continuous Delivery/Deployment. Cloud services that automate the release phases of software, from building the code, to running tests, to securely deploying it to production servers.

Explain Like I'm New

The automated factory assembly line. A developer pushes code to GitHub. The CI/CD service automatically detects the change, grabs the code, runs 500 tests, builds the app, and pushes it to the live website without a human touching a single button.

Real World Example

AWS CodePipeline, Azure DevOps, GCP Cloud Build. A developer commits code on Friday at 4 PM. CodePipeline builds the Docker image, but a unit test fails. CodePipeline instantly halts the deployment, preventing the broken code from reaching production, and emails the developer.

Common Use Cases

•Automated software releases
•DevOps culture
•Reducing human error

Interview Questions

basic

What does the 'CI' stand for in CI/CD?

intermediate

What is the exact difference between Continuous Delivery and Continuous Deployment?

Flash Cards

Question

What does CI stand for?

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Answer

Continuous Integration (the practice of merging all developer code changes into a central repository multiple times a day and running automated tests).

Question

Delivery vs Deployment?

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Answer

In Continuous *Delivery*, the code is automatically built and tested, but pauses and waits for a Human Manager to click an 'Approve' button before going live. In Continuous *Deployment*, there is no human intervention—if the tests pass, the code goes live to the public immediately.