Introduction Docker

Introduction Docker

Introduction Talk Docker / Docker-compose

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Martina Kraus

March 22, 2017
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    Agenda • Docker Basics? ◦ What is Docker? ◦ Why

    should I docker? ◦ Core concepts ◦ Containers and images • Dockerfile • Docker-Compose Break • Live Demo/ Hands On: Learning Docker together wit Bday #Labs 2
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    Docker is the world’s leading software container platform. Developers: use

    Docker to eliminate “works on my machine” problems when collaborating on code with co-workers. Operators: use Docker to run and manage apps side-by-side in isolated containers to get better compute density. Enterprises: use Docker to build agile software delivery pipelines to ship new features faster, more securely and with confidence for both Linux and Windows Server apps. What is Docker?
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    Why should I Docker? Since (März 2013): (https://github.com/docker/docker) • >

    40, 000 stars • > 2000 Contributors • > 2000 dockerized applications and images: ◦ Redis, Node.js, Hadoop, MySQL, PostgreSQL • Integration with Jenkins, Travis, Chef, Puppet, Vagrant and OpenStack • Docker-Meetups everywhere!!!! ◦ DockerCon 6
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    Details • Isolated process-memory, • Every container has its own

    network, • Container === isolated process, • OS kernel sharing, • Docker is written in Go, • Native use for Mac OS, Windows and Linux 8
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    • Standardized packaging for software and dependencies • Isolate apps

    from each other • Share the same OS kernel • Works for all major Linux distributions • Containers native to Windows Server 2016 What is a container?
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    Docker-Images • Fundament of Containers, • Multiple containers can run

    using the same Docker-Image, • Docker-Store contains some good basic images: ◦ Nginx, ◦ Node.JS, ◦ MySQL, • Containers are isolated from the Host and any other Containers: ◦ You can decide what to share: ▪ Ports, ▪ Volumes (for persistent data (for database containers)), ▪ networks, 10
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    Docker-Compose Define and run multi-container applications (services) with Docker •

    Current Version: v1.11.2 • Offers cli-tools for container management: ◦ Start ◦ Stop ◦ Rebuild 12
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