Phase 8Advanced9 of 11 in Docker

Registries, CI/CD & Interview Mastery

Getting your image from your laptop to production, and the interview questions that test whether you actually understand any of this.

The last mile: pushing images somewhere real, automating that with CI/CD, and drawing the line between what Docker does and what an orchestrator like Kubernetes does — a line that comes up in almost every Docker interview.

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4 topics ~55 min 4 code blocks & diagrams

Start with the first topic

8.1

Pushing to a Private Registry

Docker Hub is fine for learning and public open-source images, but real companies push their proprietary images to a private registry — the mechanics are nearly identical, just pointed somewhere else.

13 min 1 code practice

8.2

Docker in a CI/CD Pipeline

The exact same docker build and docker push commands you've been running by hand become the backbone of an automated pipeline — the shift is WHO runs them and WHEN, not what they do.

14 min 1 code practice

8.3

Where Docker Ends and Kubernetes Begins

The single most common Docker interview question: 'so what does Kubernetes actually add?' — and the honest answer is a clean, specific list, not a vague 'it's for scale.'

14 min 1 diagram practice

8.4

The Docker Interview: What You'll Actually Be Asked

A curated set of the questions that come up again and again in real interviews, each one directly answerable from this course — treat this as your final self-check.

14 min 1 code practice

Command Palette

Pushing to a Private Registry

Docker in a CI/CD Pipeline

Where Docker Ends and Kubernetes Begins

The Docker Interview: What You'll Actually Be Asked