Docker in a Weekend: 40 Practical Demos for DevOps Learners

Course Name : Docker in a Weekend: 40 Practical Demos for DevOps Learners
Students : 814
Duration : 10 hours
Avg Rating : 4.8 (62 ratings)
Original Price : $119.99
Discount Price : $14
Instructor / Provider : Kalyan Reddy Daida, Udemy
Course Type : Self Paced Online Course. Lifetime Access
Coupon : Click on ENROLL NOW to apply discount code

Installation and Setup

• Install Docker Desktop and sign up for Docker Hub.

Basic Commands

• Use basic commands: docker pull, docker run, docker exec, docker stop, docker start, docker rm, and docker rmi.

Image Management

• Build a Docker image and push it to Docker Hub.

Dockerfile Instructions

• Adding metadata using the LABEL instruction.
• Comparing ADD vs COPY instructions.
• Using ADD to fetch files from a URL (e.g., GitHub releases).
• Defining build-time arguments with ARG.
• Setting up commands (RUN) and exposing ports (EXPOSE).
• Using ENV, ARG, CMD, and WORKDIR.
• Overriding the CMD instruction with docker run.
• Understanding and using ENTRYPOINT.
• Adding health checks with HEALTHCHECK.
• Running containers as a specific user with USER.

Ports and Volumes

• Demonstrate -p and -P flags for port mapping.
• Basics of Docker volumes.
• Using Docker volumes with containers.
• Populating data in Docker volumes using containers.
• Mounting a sub-directory inside a Docker volume.

Bind Mounts and Temporary Storage

• Basics of bind mounts.
• Using bind mounts in read-only mode.
• Comparing Docker volumes and bind mounts.
• Using tmpfs for temporary storage.

Multi-container Applications

• Deploy multi-container applications with Docker commands.

Docker Compose

• Basics of Docker Compose (e.g., MySQL service).
• Named volumes with metadata.
• Deploy a web application (UMS WebApp) with a database (MySQL).
• Scale containers (e.g., Nginx + UMS WebApp + MySQL).
• Configure networks (frontend and backend separation).
• Implement health checks for containers.
• Control startup order with conditions.
• Use Compose profiles for selective services.
• Demonstrate inter-container links.
• Create aliases for services.
• Build Docker images with Compose.
• Enable live-reloading (develop-watch) with sync and restart.
• Enable live-reloading (develop-watch) with sync and rebuild.

BuildKit and Multi-stage Builds

• Use BuildKit’s buildx CLI for local and cloud builds.
• Build multi-platform Docker images with BuildKit.
• Execute remote builds using Docker Cloud Builder.
• Optimize Dockerfiles with multi-stage builds.

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