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Deploy django apps using docker
This document discusses deploying Django apps using Docker. Docker allows encapsulating apps from the host system in "containers" to make deployment repeatable without interfering with other host configurations. Key Docker terms include Dockerfile (commands to build images), images (snapshots of lightweight VMs), and containers (running instances of images). The document provides commands for building/running images and entering containers. It recommends getting a cheap VM from Digital Ocean with Docker preinstalled to easily test and use Docker.
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Deploy django apps using docker
- 1. Deploying Django Apps using Docker https://www.docker.com/ http://www.simpleloop.com
- 2. Targets - Deployapp with minimal effort - Encapsule app from host system in so called “containers”
- 3. Targets - Makedeployment a repeatable task without too much headache - Ensure that my app does not interfere with other host configurations - No more virtualenv needed
- 4. What is Docker? - Build, Ship and Run - Any App - Anywhere - think of it as lightweight VMs - “Just ran through the Docker tutorial for the first time. Mind blown. This changes everything” - http://tiny.cc/pkyomx
- 5. Docker Terms -Dockerfile - A set of commands to build your Docker Image - Gist: https://gist.github.com/mr-stateradio/237b183a30f0f399de67
- 6. Docker Terms -Image - Based upon the Dockerfile you create a Docker Image - Think of it as a Snapshot of your lightweight VM - CMD: docker build -t simpleloop/simpleloop-company-page_created_<yyyy-mm-dd> .
- 7. Docker Terms -Container - Based upon the Docker Image you create a container - Think of it as the running instance of your Image - CMD: docker run -p 80:80 -p 443:443 -i -t <image-id>
- 8. Live Test &Useful CMDs Check Container for www.simpleloop.com - sudo docker images # show all available images - sudo docker ps # show all running containers - sudo docker ps -a # show all containers - docker run --rm -v /usr/local/bin:/target jpetazzo/nsenter # install ns-enter - sudo docker-enter <container-id> # enter specific containers - ps aux # not docker specific ;-) short and clean process list in the container
- 9. Get Started -Easiest Way: Get a VM for 5$/month at https://www.digitalocean.com/ with Docker preinstalled - https://github.com/jpetazzo/nsenter - Allows you to easily enter a running container
- 10. Hints - RunDatabase on host - Do not use it for one app on one host - Use it for x apps on one host - Not the solution for all problems - Adds complexity for backups
- 11. Thanks Thomas Kremmel simpleloop IT Your Web and Mobile Development Partner www.simpleloop.com