Docker 101 - An introduction to docker
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Docker is a containerization platform that allows applications to run in isolated containers using fewer resources than virtual machines. Containers have existed for years on operating systems through features like BSD jails and Linux cgroups, but Docker standardized the container format and created tools to manage the lifecycle of applications in containers. The presentation introduces Docker and demonstrates how to build a simple Apache container using a Dockerfile to define the container configuration and expose the Apache service.
![Dockerfile
# A basic apache server.
FROM ubuntu:15.04
MAINTAINER Codaptive (Pty) Ltd
RUN apt-get update
RUN apt-get install -y apache2
EXPOSE 80
CMD ["/usr/sbin/apache2", "-D", "FOREGROUND"]](https://image.slidesharecdn.com/docker101-anintroductiontodocker-150506090213-conversion-gate02/85/Docker-101-An-introduction-to-docker-6-320.jpg)
Docker 101 - An introduction to docker
- 1. @CodaptiveOps An introduction to docker Johannesburg Drupal meetup / 2015-05-06 /Richard Banks @richardnbanks
- 2. Hello my name is... Richard Started designing websites in 2001 Started playing with Linux in 2003 Been working with Drupal since 2005 Founded DataPoint in 2006 Founded Codaptive in 2012
- 3. What is Docker? Any why all the hype?
- 4. What is a container? Been around for a while BSD: jails, Solaris: Zones, Linux: cgroups A form of visualization Uses less resources
- 5. vs
- 6. Dockerfile # A basic apache server. FROM ubuntu:15.04 MAINTAINER Codaptive (Pty) Ltd RUN apt-get update RUN apt-get install -y apache2 EXPOSE 80 CMD ["/usr/sbin/apache2", "-D", "FOREGROUND"]
- 7. Demo Time!