CodeBlanks Logo Icon CodeBlanks
Login Register

Summary - Installation

Combine install commands to run a system check.

Summary: installation

In this group:

  • On Linux, Docker Engine is installed with the official script; the user is added to the docker group.
  • On Windows/macOS, Docker Desktop is used (with the WSL 2 backend on Windows).
  • docker version shows the client and server, docker info the daemon state.
  • hello-world tests the installation end to end; stopped containers are seen with docker ps -a.
  • docker system df / prune manage disk space; docker context selects the target daemon.

Practice Installation checklist

Write four commands: print the daemon version with --format; run hello-world (deleted when done); show the disk usage; show the active context (docker context show).

Starter code

terminal
# buraya yaz

Sample solution

terminal
docker version --format '{{.Server.Version}}'
docker run --rm hello-world
docker system df
docker context show

Expected output

27.3.1
Hello from Docker!
TYPE            TOTAL     ACTIVE    SIZE
Images          1         0         13kB
default

Questions and answers

Review the lesson questions together with their answers. To test yourself, solve the lesson interactively.

1 Which is used in a script to get only the Docker server version?

  • docker version --format '{{.Server.Version}}' Correct answer
  • docker info --all
  • docker --server
  • docker ps -v

Explanation: --format selects a single field with a Go template.

2 Clean up everything unused without confirmation.

Question 
docker system prune ____
Answer 
docker system prune -f

Explanation: -f (force) doesn't ask for confirmation.

3 Match.

Term Meaning
docker version Versions
docker info Daemon details
docker system df Space usage
hello-world End-to-end test

All lessons in Beginner

1 What is Docker?

  1. What is Docker?
  2. Containers and virtual machines
  3. Images and containers
  4. Docker architecture
  5. Use cases
  6. Summary - What is Docker

2 Installation and first commands

  1. Installing Docker
  2. docker version
  3. docker info
  4. The hello-world container
  5. Docker Desktop
  6. Summary - Installation

3 First container

  1. docker run basics
  2. Running in the background
  3. docker ps
  4. docker stop and rm
  5. docker logs
  6. Summary - First container

4 Dockerfile basics

  1. What is a Dockerfile?
  2. The FROM instruction
  3. The RUN instruction
  4. COPY and ADD
  5. CMD and ENTRYPOINT
  6. Summary - Dockerfile

5 Build and images

  1. docker build
  2. Tagging images
  3. Build context
  4. Layers and cache
  5. .dockerignore
  6. Summary - Build

6 docker run options

  1. Interactive mode
  2. Naming containers
  3. Restart policy
  4. Working directory
  5. Switching users
  6. Summary - docker run

7 Image management

  1. docker images
  2. docker rmi
  3. docker pull
  4. docker push
  5. docker tag
  6. Summary - Image management

8 Port mapping

  1. The port concept
  2. The -p flag
  3. Multiple ports
  4. Random ports
  5. IP binding
  6. Summary - Port mapping

9 Volumes and data

  1. Data persistence
  2. Named volumes
  3. The -v flag
  4. Bind mounts
  5. Volume management
  6. Summary - Volumes

10 Environment variables

  1. The -e flag
  2. The ENV instruction
  3. The ARG instruction
  4. env-file
  5. The WORKDIR instruction
  6. Summary - Environment

11 Project: docker-compose

  1. Compose design
  2. Service definition
  3. Database service
  4. Volume and network
  5. Putting it together - compose

12 Docker Hub and registry

  1. What is Docker Hub?
  2. docker login
  3. Searching images
  4. Official images
  5. Private registry
  6. Summary - Registry

13 Network basics

  1. Network drivers
  2. docker network ls
  3. Bridge network
  4. Container connectivity
  5. Publishing ports
  6. Summary - Network

14 Beginner final

  1. Challenge - Dockerfile
  2. Challenge - Build and run
  3. Challenge - Volume
  4. Challenge - Compose
  5. Challenge - Beginner project