Containers provide lightweight isolation of applications and their dependencies. Docker allows users to package applications into images and run them as containers on local machines or remote servers. Key Docker concepts include images, containers, volumes, registries, and tools like Docker CLI, Compose, and Machine. Containers help solve issues like dependency conflicts, running applications across different environments, and isolating multiple instances of services.

1. Hello, Willy!
%3

2. Why?
● Work in local, does not work in production
● Use existed app
● Multiple isolated deamon instances
● Bundle you app
● Dependency hell
%5

3. Roadmap
● Glossary: Сontainer?
● Tools
● Use Cases
%8

4. Glossary
%10

5. Glossary
● Image
%13

6. Image
%15

7. Glossary
● Image
● Container
%18

8. Сontainer?
%21

9. Container is not VM
● Lite for machine: size, CPU, memory
● VM provides more isolation
● Plenty of tools
● Easy to manage
● A lot of existed images
%23

10. Glossary
● Image
● Container
● Volume
%26

11. Glossary
● Image
● Container
● Volume
● Registry
%28

12. Glossary
● Image
● Container
● Volume
● Registry
● Docker
%31

13. Glossary
● Image
● Container
● Volume
● Registry
● Docker
● Compose
%33

14. Glossary
● Image
● Container
● Volume
● Registry
● Docker
● Compose
● Machine
%36

15. Tools
● Docker CLI – docker
● Compose – docker-compose
● Machine – docker-machine
%38

16. Docker CLI
● Image
$ docker pull ubuntu:latest
%41

17. Docker CLI
● Image
$ docker pull ubuntu:latest
$ docker build -t
eoskin/serverauditor:dev .
%46

18. Docker CLI
● Image
$ docker pull ubuntu:latest
$ docker build -t
eoskin/serverauditor:dev .
$ docker tag eoskin/serverauditor:dev
eoskin/serverauditor:prod
%49

19. Docker CLI
● Image
$ docker pull ubuntu:latest
$ docker build -t
eoskin/serverauditor:dev .
$ docker tag eoskin/serverauditor:dev
eoskin/serverauditor:prod
$ docker push
eoskin/serverauditor:prod
%51

20. Docker CLI
● Image
$ docker pull ubuntu:latest
$ docker build -t
eoskin/serverauditor:dev .
$ docker tag eoskin/serverauditor:dev
eoskin/serverauditor:prod
$ docker push
eoskin/serverauditor:prod
$ docker rmi eoskin/serverauditor:prod
%54

21. Docker CLI
● Container
$ docker run [-ti] ubuntu:latest bash
$ docker run -d
eoskin/serverauditor:dev
%56

22. Docker CLI
● Container
$ docker run [-ti] ubuntu:latest bash
$ CID=$(docker run -d
eoskin/serverauditor:dev)
$ docker ps $CID
%59

23. Docker CLI
● Container
$ docker run [-ti] ubuntu:latest bash
$ CID=$(docker run -d
eoskin/serverauditor:dev)
$ docker ps $CID
$ docker logs $CID
%62

24. Docker CLI
● Container
$ docker run [-ti] ubuntu:latest bash
$ CID=$(docker run -d
eoskin/serverauditor:dev)
$ docker ps $CID
$ docker logs $CID
$ docker stop $CID
$ docker start $CID
%64

25. Docker CLI
● Container
$ docker start $CID
$ docker inspect $CID | jq
$ docker exec $CID bash
%67

26. Docker CLI
● Container
$ docker start $CID
$ docker inspect $CID | jq
$ docker exec $CID bash
$ docker kill $CID
$ docker rm $CID
%69

27. Compose
● docker-compose up -d web
%72

28. Compose
● docker-compose up -d web
● docker-compose build web
%74

29. Compose
● docker-compose up -d web
● docker-compose build web
● docker-compose logs web
● etc.
%77

30. Machine
● docker-machine create -d [DRIVER]
willy
● docker-machine ls
%79

31. Machine
● docker-machine create -d [DRIVER]
willy
● docker-machine ls
● eval $(docker-machine env willy)
● docker $(docker-machine config
willy) ps
%82

32. Machine
● docker-machine create -d [DRIVER]
willy
● docker-machine ls
● eval $(docker-machine env willy)
● docker $(docker-machine config willy)
ps
● docker-machine ssh whilly
● docker-machine kill whilly
%85

33. Use Cases
● Work in local, does not work in production
● Use existed app
● Multiple isolated deamon instances
● Bundle you app
● Dependency hell
%87

34. Use Cases
● Work in local, does not work in production
– Locally:
● Build image
● Push to the registry
– Anywhere:
● Pull the image from registry
● Run image
%90

35. Use Cases
● Use existed app
– Postgis
– MongoDB
– Redis
– Cacti
– Node
– Python
– Ruby
– Java
%92

36. Use Cases
● Multiple isolated deamon instances
– Serverauditor Termius ssh farm
%95

37. Use Cases
● Dependency hell
– Containers are isolated
– Use build depdencies only when build
– Share build environment with build-images
%97

38. References
● https://washraf.gitbooks.io/the-docker-ecosyste
m/content/index.html
● https://docs.docker.com/
%100