Using docker to deploy app into production.

1. How to easy deploy app
into any cloud
IPEX Meetup Brno, 9.3.2016 1

2. Ladislav Prskavec
4 Twitter: @abtris
4 Blog: http://blog.prskavec.net
4 Talking and mentoring Docker since 2013
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3. IPEX Meetup Brno, 9.3.2016 3

4. What's Docker?
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5. Analogy
from
logistics
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6. Goods, wares
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7. Containers
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8. Why Docker?
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9. Fast
and
scalableIPEX Meetup Brno, 9.3.2016 9

10. Build once,
run anywhere
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11. Configure once, run
anywhere
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12. Example of using Docker
4 build documentation in Sphinx with latex support
4 executing code in many different programming
languages without requiring a single compiler or
script interpreter on your machine - docker exec
4 running gui app in docker at linux
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13. Example of using Docker
4 development without install ing many tools at local machine
4 Vagrant, Otto dev
4 continues integration using docker
4 Jenkins, TravisCI, CircleCI
4 DevOps platform for build, deploy and manage apps
across any cloud
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14. IPEX Meetup Brno, 9.3.2016 14

15. Docker Engine
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16. Docker Engine
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17. VM vs Docker
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18. Containers and images
docker run hello-world
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19. Docker Remote API
4 client & server in Docker
4 docker ps
4 docker build
4 docker push/pull
4 docker run/stop
4 docker inspect
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20. Docker lifecycle
4 a build produces an immutable image
4 a container is as instance of the image
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21. Docker lifecycle
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22. Container lifecycle
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23. Dockerfile
FROM alpine:3.3
RUN apk add --no-cache curl
ENV DOCKER_BUCKET get.docker.com
ENV DOCKER_VERSION 1.10.2
ENV DOCKER_SHA256 3fcac4f30e1c1a346c52ba33104175ae4ccbd9b9dbb947f56a0a32c9e401b768
RUN curl -fSL "https://${DOCKER_BUCKET}/builds/Linux/x86_64/docker-$DOCKER_VERSION" -o /usr/local/bin/docker
&& echo "${DOCKER_SHA256} /usr/local/bin/docker" | sha256sum -c -
&& chmod +x /usr/local/bin/docker
COPY docker-entrypoint.sh /usr/local/bin/
ENTRYPOINT ["docker-entrypoint.sh"]
CMD ["sh"]
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24. DockerHub
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25. IPEX Meetup Brno, 9.3.2016 25

26. Docker tools
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27. Docker compose
4 defining and running multi-
container applications with
Docker
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28. docker-compose.yml
web:
build: .
ports:
- "5000:5000"
volumes:
- .:/code
links:
- redis
redis:
image: redis
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29. Docker machine
4 Machine lets you create Docker hosts on your
computer, on cloud providers, and inside your own
data center.
4 part of Docker toolbox
4 replacement for boot2docker
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30. Docker swarm
4 Docker Swarm is native clustering for
Docker.
4 Swarm serves the standard Docker
API, so any tool which already
communicates with a Docker daemon
can use Swarm to transparently scale
to multiple hosts: Dokku, Compose,
Krane, Flynn, Deis, DockerUI,
Shipyard, Drone, Jenkins... and, of
course, the Docker client itself.
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31. Kitematic
4 desktop GUI for Docker
4 Mac and Windows only
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32. Docker Trusted Registry (DTR)
4 private dedicated image registry
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33. Docker Cloud
4 Deploy and scale any application to your cloud in
seconds, with just a few clicks
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34. IPEX Meetup Brno, 9.3.2016 34

35. IPEX Meetup Brno, 9.3.2016 35

36. Docker isn't just Docker Inc
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37. Alternatives for Docker Registry
4 Amazon EC2 Container Registry
4 Google Container Registry
4 Quay Enterprise
4 Artifactory
4 Nexus
4 Bitnami Container Images for Docker (beta)
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38. Yours private registry
4 storage at S3
docker run
-d
-p 5000:5000
--restart=always
--name registry
registry:2
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39. Open Container ekosystem
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40. IPEX Meetup Brno, 9.3.2016 40

41. IPEX Meetup Brno, 9.3.2016 41

42. wercker.yml example
# The container definition we want to use for developing our app
box: golang
# Defining the dev pipeline
dev:
steps:
- internal/watch:
code: |
go build ./...
./source
reload: true
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43. IPEX Meetup Brno, 9.3.2016 43

44. Building a Go app for scratch
containers
build:
box: google/golang
steps:
# Test the project
- script:
name: go test
code: go test ./...
# Statically build the project
- script:
name: go build
code: CGO_ENABLED=0 go build -a -ldflags '-s' -installsuffix cgo -o app .
# Copy binary to a location that gets passed along to the deploy pipeline
- script:
name: copy binary
code: cp app "$WERCKER_OUTPUT_DIR"
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45. Docker in AWS
4 Elastic Beanstalk
4 EC2 Container Service (ECS)
4 EC2 with Swarm, Mesos or Kubernetes
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46. IPEX Meetup Brno, 9.3.2016 46

47. IPEX Meetup Brno, 9.3.2016 47

48. Apache Messos
4 Scalability to 10,000s of nodes
4 Fault-tolerant replicated master and slaves using ZooKeeper
4 Support for Docker containers
4 Native isolation between tasks with Linux Containers
4 Multi-resource scheduling (memory, CPU, disk, and ports)
4 Java, Python and C++ APIs for developing new parallel applications
4 Web UI for viewing cluster state
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49. Notes at the end
4 don't use Docker as VM
4 build & production images
4 tag every image using in production (not just latest)
4 big difference between languages (NodeJS & Go)
4 don't use latest Docker versions in production
4 try use dockerlint for your Dockerfiles
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50. Credits
4 boat-containers.jpg 2
4 computer-scrap.jpg [^3]
4 vm-vs-docker.png [^4]
4 docker logos [^5]
4 formule_one.jpg [^6]
2
https://www.flickr.com/photos/41864721@N00/3451530961/
[^3]: https://www.flickr.com/photos/7362086@N02/2019666131/
[^4]: http://www.jayway.com/wp-content/uploads/2015/03/vm-vs-docker.png
[^5]: https://www.docker.com/brand-guidelines
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