⛅ Docker Mastery for Developers and Cloude Eng, Build, Ship and Deploy

What is a Container? The "works on my machine" problem

15 min

Bare Metal vs Virtual Machines vs Containers

18 min

Why Containers Won: speed, size, and density

13 min

What is Docker? Engine, daemon, client, and images

19 min

Docker vs OCI: the standard behind the whale

15 min

Application Architecture 101: monolith, services, and where containers fit

16 min

Shell Commands Survival Kit for Docker users

15 min

Users, Groups, and File Permissions (chmod, chown)

17 min

Package Managers: apt, apk, and yum inside images

13 min

Shell Scripting for entrypoints and startup scripts

16 min

Linux Namespaces: how a container gets its own world

12 min

cgroups: how Docker limits CPU and memory

14 min

Union Filesystems and Copy-on-Write layers

13 min

Installing Docker Desktop on Windows, macOS, and Linux

17 min

Installing Docker Engine on Linux (and the docker group)

17 min

Pulling and Running Third-Party Images from Docker Hub

14 min

docker run Deep Dive: ports, names, detached, interactive

13 min

Runtime Configuration: env vars, restart policies, resource limits

19 min

Docker CLI for Containers: ps, logs, exec, stop, rm, inspect

17 min

Docker CLI for Images: images, rmi, prune, system df

16 min

The Ephemeral Container Filesystem: why your data vanished

18 min

Volume Mounts: Docker-managed storage that survives

17 min

Bind Mounts: sharing your project folder with the container

12 min

Docker Networks: bridge, host, and none

18 min

Container-to-Container Communication by name

15 min

Running Postgres, MySQL, and Redis in Containers

14 min

Your First Dockerfile: FROM, WORKDIR, COPY, RUN, CMD

19 min

CMD vs ENTRYPOINT, and when to use each

12 min

Image Layers and How Caching Really Works

13 min

Efficient Layer Caching: order your Dockerfile properly

18 min

.dockerignore and keeping node_modules out

18 min

Multi-Stage Builds: from 1.2 GB to 90 MB

18 min

Docker Hub: pushing, pulling, public vs private repos

15 min

Image Tagging Best Practices (stop using latest)

19 min

Other Registries: GHCR, Amazon ECR, Google GCR, Azure ACR

15 min

Image Size Optimization: alpine, distroless, and slim bases

18 min

Scanning Images for Vulnerabilities with Trivy and docker scout

12 min

Runtime Security: non-root users, read-only FS, dropped capabilities

14 min

Handling Secrets the right way (and the wrong ways)

12 min

Why Compose Exists: one file, whole stack

16 min

Writing compose.yaml: services, ports, volumes, networks

18 min

depends_on, healthchecks, and startup order

17 min

Hot Reloading in containers with nodemon and bind mounts

19 min

Debugging Inside Containers: attaching a debugger

14 min

Running Tests in Containers

16 min

Command Line Utilities: exec, cp, stats, and one-off tasks

19 min