Micro Services for Lazy DevelopersEugene Krevenets

github: http://hyzhak.github.io

Docker

Intro / Laziness

Intro / Other tools

Intro / All in one

Intro / My experience

node + mongodb

node + postgres

python + postgres

and more

...

Intro / My other experience

sometimes they come back

How does it works / Lightweight

Containers operate at the process level - runC (libcontainer)

How does it works / Isolated

Single Responsibility. One service - On Container

Share resource between containers (Volume, Network)

How does it works / Command line

How does it works / Kitematic

How does it works / For None-Linux Users

Docker-machine
(VirtualBox)

Docker-compose

Docker

Lets play / Inheritance

Lets play / Solo for Nodejs

FROM node:5.2RUN mkdir /appWORKDIR /appCOPY package.json /app/RUN npm install

Lets play / Solo for Python

FROM python:3.5.0RUN apt-get update && \ apt-get install -y libmemcached-devRUN mkdir /appCOPY requirements.txt /app/WORKDIR /appRUN pip3 install -r requirements.txt

Lets play / Docker Hub

Lets play / Ready made Images

Lets play / Django Duet

db: image: postgresweb: build: . command: python manage.py runserver 0.0.0.0:8000 volumes: - .:/code ports: - "8000:8000" links: - db

Lets play / Start it

$ docker-compose up

Lets play / Start it. Log

Pit trap

Learning curve

Build time (Layering)

File refresh (use nodemon --legacy-watch key)

Performance

Dockerfile should be at the top

Sometimes Linux VM can breaks itself (VirtualBox)

Thanks! Questions?

My Contacts Eugene Krevenetsgithub: http://hyzhak.github.iotwitter: hyzhak / hyzhak_en