Introduction to docker
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This document provides an introduction to Docker, including what containers are, what Docker is, who uses Docker, how images are stored in registries, best practices for Docker, and how to set up Docker. It also briefly discusses Docker components like Docker Machine, Swarm, and Compose. The author is Lakmal Warusawithana, Vice President of Apache Stratos and Director of Cloud Architecture at WSO2.
Introduction to docker
- 1. Last Updated: March. 2015 Introduction to Docker (Engine) Lakmal Warusawithana
- 2. ** About Me Lakmal Warusawithana Vise President, Apache Stratos Director - Cloud Architecture, WSO2 Inc lakmal@apache.org / lakmal@wso2.com Twitter : lakwarus
- 30. ** Who use/help Docker now? ๏ RedHat ๏ IBM ๏ OpenStack ๏ Rackspace ๏ Canonical ๏ Google
- 31. ** Other projects/product use Docker? ๏ Kubernetes ๏ CoreOS ๏ OpenStack ๏ Openshift ๏ CloudFoundry ๏ Apache Stratos ๏ CloudStack ๏ DotCloud ๏ Google Compute Engine ๏ Rackspace Cloud
- 32. ** Naturally support development workflows
- 34. ** How does images are stored in Registry
- 35. ** Docker - Best Practices ๏ Containers should be ephemeral - By “ephemeral,” we mean that it can be stopped and destroyed and a new one built and put in place with an absolute minimum of set-up and configuration. ๏ Avoid installing unnecessary packages - For example, you don’t need to include a text editor in a database image. ๏ Run only one process per container - Decoupling applications into multiple containers makes it much easier to scale horizontally and reuse containers. If that service depends on another service, make use of container linking. ๏ Minimize the number of layers - You need to find the balance between readability (and thus long- term maintainability) of the Dockerfile and minimizing the number of layers it uses.
- 36. ** Setting up Docker ๏ boot2docker - https://github.com/boot2docker/boot2docker - Mac, Windows ๏ Open vagrant boxes - https://github.com/phusion/open-vagrant-boxes - any OS ๏ Docker Machine - https://docs.docker.com/machine/
- 37. ** Demo
- 38. ** Latest Docker components ... ๏ Docker Machine ๏ Swarm ๏ Docker Compose
- 39. ** Docker Swarm
- 40. ** Docker Swarm
- 42. ** Q&A
- 43. ** More Information ! ๏ https://sysadmincasts.com/episodes/31-introduction- to-docker ๏ https://www.docker.com/ ๏ https://docs.docker.com/articles/dockerfile_best- practices/ ๏ http://blog.docker.com/2015/02/announcing-docker- machine-beta/ ๏ http://blog.docker.com/2015/02/scaling-docker-with- swarm/ ๏ http://blog.docker.com/2015/02/announcing-docker- compose/
- 44. Contact us !