Deploying from CI/CD pipeline in Docker - Cheat Sheet & Quick Revision

Recall & Review

beginner

What is a CI/CD pipeline?

A CI/CD pipeline is a set of automated steps that help developers build, test, and deploy code quickly and safely. It stands for Continuous Integration and Continuous Deployment.

beginner

Why use Docker in a CI/CD pipeline?

Docker packages applications and their dependencies into containers. This makes deployment consistent and easy across different environments in the CI/CD pipeline.

beginner

What is the role of a Dockerfile in deployment?

A Dockerfile is a simple text file with instructions to build a Docker image. It defines what goes inside the container used in deployment.

intermediate

How does a CI/CD pipeline deploy a Docker container?

The pipeline builds a Docker image, pushes it to a registry, then pulls and runs the container on the target server automatically.

beginner

What is a Docker registry?

A Docker registry is a storage and distribution system for Docker images. Examples include Docker Hub and private registries.

What does CI stand for in CI/CD?

A Container Installation

B Continuous Integration

C Code Inspection

D Continuous Improvement

CI means Continuous Integration, which is the practice of merging code changes frequently.

Which file defines how to build a Docker image?

A README.md

B docker-compose.yml

C Dockerfile

D config.json

A Dockerfile contains instructions to build a Docker image.

Where are Docker images stored for deployment?

A Docker registry

B Local folder only

C Source code repository

D Virtual machine

Docker images are stored in a Docker registry to be pulled during deployment.

What is the main benefit of deploying with Docker in CI/CD?

A Consistent environment across stages

B Faster coding speed

C No need for testing

D Manual deployment only

Docker ensures the same environment from build to production, reducing errors.

Which step is NOT part of a typical Docker deployment in CI/CD?

A Building the Docker image

B Pushing image to registry

C Running container on server

D Writing application code manually on server

Writing code manually on the server is not part of automated CI/CD deployment.

Explain the steps involved in deploying a Docker container using a CI/CD pipeline.

Think about how code moves from your computer to the live server.

Describe why Docker helps make deployments more reliable in CI/CD pipelines.

Consider how cooking a recipe exactly the same way every time relates to Docker.