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Nodejs OC Docker and Node

Jeff Horn
Jeff Horn

This document provides an overview of Docker, explaining that it is a tool used to package applications and dependencies into portable containers that can run on any Linux server. Some key benefits of Docker are that it is lightweight, portable, allows any programming language to be used, and simplifies configuration. The document then discusses examples of using Dockerfiles to build images and deploying containers, as well as tools for orchestrating containers across multiple hosts like Docker Registry, Fig, and others. It concludes by inviting questions.

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WELCOME
JEFFREY HORN WEB DEVELOPER
+
WHAT ARE WE TALKING ABOUT? What is Docker and why should I use it? Show you an example project. Overview of the different tools.
WHAT IS DOCKER? A TOOL TO PACKAGE AN APPLICATION AND ITS DEPENDENCIES INTO A VIRTUAL CONTAINER THAT CAN RUN ON ANY LINUX SERVER
APP 2 B I N / LIBS APP 1 B I N / LIBS HYPERVISOR OS SERVER DOCKER ENGINE OS SERVER APP 1 BIN/ LIBS APP 2 BIN/ LIBS VMs CONTAINERS GUEST OS GUEST OS
WHY DOCKER Light weight and portable Works on any Linux server (cloud, bare metal) Use any language or tool chain Encapsulate application code and dependancies Configuration is simple
WHY DOCKER AT ZILLOW We use service oriented architecture Separation of concerns between Ops and Developers Repeatability Great for testing Low overhead to run new containers to test out new technology
Nodejs OC Docker and Node
Nodejs OC Docker and Node
PROBLEMS WEVE HAD Its new technology and not quite complete When to use Docker and when not to use Running containers on multiple hosts Seeing whats happening inside the container
EXAMPLE
DOCKERFILE Heart of every image Images stack on top of each other When writing Dockerfiles take advantage of caching General stuff at top Specific stuff at the bottom
NEW CONTAINER APPLICATION CODE /APP CURL & GIT UBUNTU 14.04
DOCKER REGISTRY A lot like GitHub Build and push images to a repo You can update and push to repos You can pull down images and run on any linux server Docker Hub, Quay.io, or host your own
?
ORCHESTRATION Its hard They are working on it In the mean time lots of frameworks Fig, Consul, Centurion, Kubernetes, and lots more
Nodejs OC Docker and Node
FIG Map one to one with docker commands IMHO its way easier to see how your containers are built Handles starting and stoping multiple containers Only works on a single host Owned by docker and will probably be rolled into the main project
QUESTIONS?

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Nodejs OC Docker and Node

  • 2. JEFFREY HORN WEB DEVELOPER
  • 3. +
  • 4. WHAT ARE WE TALKING ABOUT? What is Docker and why should I use it? Show you an example project. Overview of the different tools.
  • 5. WHAT IS DOCKER? A TOOL TO PACKAGE AN APPLICATION AND ITS DEPENDENCIES INTO A VIRTUAL CONTAINER THAT CAN RUN ON ANY LINUX SERVER
  • 6. APP 2 B I N / LIBS APP 1 B I N / LIBS HYPERVISOR OS SERVER DOCKER ENGINE OS SERVER APP 1 BIN/ LIBS APP 2 BIN/ LIBS VMs CONTAINERS GUEST OS GUEST OS
  • 7. WHY DOCKER Light weight and portable Works on any Linux server (cloud, bare metal) Use any language or tool chain Encapsulate application code and dependancies Configuration is simple
  • 8. WHY DOCKER AT ZILLOW We use service oriented architecture Separation of concerns between Ops and Developers Repeatability Great for testing Low overhead to run new containers to test out new technology
  • 11. PROBLEMS WEVE HAD Its new technology and not quite complete When to use Docker and when not to use Running containers on multiple hosts Seeing whats happening inside the container
  • 13. DOCKERFILE Heart of every image Images stack on top of each other When writing Dockerfiles take advantage of caching General stuff at top Specific stuff at the bottom
  • 14. NEW CONTAINER APPLICATION CODE /APP CURL & GIT UBUNTU 14.04
  • 15. DOCKER REGISTRY A lot like GitHub Build and push images to a repo You can update and push to repos You can pull down images and run on any linux server Docker Hub, Quay.io, or host your own
  • 16. ?
  • 17. ORCHESTRATION Its hard They are working on it In the mean time lots of frameworks Fig, Consul, Centurion, Kubernetes, and lots more
  • 19. FIG Map one to one with docker commands IMHO its way easier to see how your containers are built Handles starting and stoping multiple containers Only works on a single host Owned by docker and will probably be rolled into the main project