training materials

1. Docker
First linux container hands on
2020-11-11
Orozco Hsu

2. Agenda
• Docker engine
• Containers & images
• Image registries and Docker Hub
• Container isolation

3. Play With Docker (PWD)
• Sign-Up an account and use PWD
• https://labs.play-with-docker.com/
Use Chrome browser

5. Docker engine
• Running your first container => Run docker run hello-world

6. Docker engine

7. Docker engine

8. Containers & images
• Docker Images
• Run =>
• The pull command fetches the alpine image from the Docker registry and
saves it in our system. In this case the registry is Docker Hub
• You can change the registry, but that’s a different lab
docker pull alpine
Alpine is a lightweight Linux distribution so it is quick to pull down and run, making it
a popular starting point for many other images

9. Containers & images
• Docker Images
• RUN => docker images

10. Containers & images
• Docker containers
• RUN => docker run alpine ls -l or docker run alpine ls | wc -l

11. Containers & images
• Docker run

12. Containers & images
• Docker run
• RUN =>
• RUN =>
• RUN =>
• RUN =>
docker run alpine echo "hello from alpine"
docker run alpine /bin/sh
docker run -it alpine /bin/sh
Ctl + P + Q

13. Containers & images
• Docker run
• RUN => docker ps -a

14. Containers & images
• Docker stop
• RUN =>
• Docker start
• RUN =>
docker stop XXXXX
docker start XXXXX

15. Container isolation
• Docker exec
• RUN =>
• RUN =>
docker exec -it XXXXX /bin/sh
docker rm -f `docker ps -a -q`

16. Image registries and Docker Hub
• Docker commit
• RUN =>
• Docker push
• RUN =>
• RUN =>
• RUN =>
docker commit XXXXX orozcohsu/test
docker push orozcohsu/test
Enter your account and password of dockerhub
docker login
docker logout

17. Image registries and Docker Hub
• Dockerhub
• https://hub.docker.com/

18. Container isolation
• Docker isolation

19. Prepare it for next-week

20. Create your first docker environment
• Install VMware Workstation 15 Pro in your laptop
• https://mega.nz/file/zHxlyASC#47BjSzA8iR26nUT4g4YVVWTw0eo-
qchQzPygLI4sE4U
• Install CentOS7 (CentOS-7-x86_64-DVD-2003.iso)
• http://ftp.ksu.edu.tw/FTP/CentOS/7/isos/x86_64/CentOS-7-x86_64-DVD-
2003.iso
• Install Putty
• https://www.chiark.greenend.org.uk/~sgtatham/putty/latest.html