What is Docker? What is Jquery, MongoDB and Nashorn? The high-level architecture of the Online Kanban Board Docker run syntax / putting everything together What is Docker-Compose and why it is so amazing DEMO Q & A

1. Docker: The basics
Marcelo Costa
Cloud Integration Engineer, Connections Cloud
May 2016
Including a demo with an awesome full-stack JS app

2. Agenda
● What is Docker?
● What is Jquery, MongoDB and Nashorn?
● The high-level architecture of the Online Kanban Board
● Docker run syntax / putting everything together
● What is Docker-Compose and why it is so amazing
● DEMO
● Q & A

3. What is Docker?

4. What is Jquery, MongoDB and Nashorn?
Must mention: avatar.js

5. The high-level architecture of the Online Kanban Board

6. Docker run syntax / putting everything together 1/2
The basics:
●
docker run -it busybox:latest
● docker run -d busybox:latest top
c646318a53cd4e16780cd654fa6df854c6550e089491f4a805ba16edd3b94c32
●
docker attach c646
● ctrl+c stops the container (ssh if you need to jump into containers without impacting→
them)
● Some important parameters:
Parameters Configuration
-d (detached) Runs in detached mode (not interactive)
--name Name of the container (ID)
-h (Hostname) Hostname within Docker Network
--link Allow communication within Docker Network
-p (Port) Exposed port (host:container)
-v (Volume) Mapped Volume/disk/path (host:container)
<image> Name of the image (parent obj of the container)
-w (Working Dir) Initial directory/folder for container commands

7. Docker run syntax / putting everything together 2/2
● Adding some complexity:
●
docker run -d --name mydbcontainer -h mykanbandbhost -p 27017:27017 -v
/home/marcelo/.docker-volumes/myOnlineKanban/data:/data/db mongo
● docker run -d --name mykanban -h mykanbanapp --link mydbcontainer -p 8080:8080 -w
/opt/mykanban -v /home/marcelo/Projects/MyOnlineKanban/mykanban:/opt/mykanban
java:8 /usr/bin/jjs -cp lib/mongo-2.10.1.jar httpsrv.js
Listing running containers:
● docker ps --filter status=running
CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES
4c97e0fca863 busybox:latest "top" 3 seconds ago Up 2 seconds stupefied_euclid

8. What is Docker-Compose and why it is so amazing
● Instead of executing multiple “docker run” commands or opening multiple terminals
to start and track each container configuration, use a single command:

Docker-compose up
● Docker-compose.yml
mykanban:
image: java:8
working_dir: /opt/mykanban/
command: jjs -cp lib/mongo-2.10.1.jar httpsrv.js
links:
- mydbcontainer
ports:
- '8080:8080'
volumes:
- ~/Projects/MyOnlineKanban/mykanban:/opt/mykanban
mydbcontainer:
image: mongo
environment:
MONGODB_USER: mongouser
MONGODB_PASSWORD: meh123
hostname: mykanbandbhost
ports:
- '27017:27017'
volumes:
- ~/.docker-
volumes/myOnlineKanban/data:/data/db/

9. DEMO

10. Q & A