docker ppt: 桂阳:通过工作流实现Docker在CoreOS自动化部署

2015-09-11 09:45:00
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摘要:Automated Deploy Docker Containers on CoreOS桂阳Docker Meetup Beijing 7/13/2014

Automated Deploy Docker Containers on CoreOS


桂阳
Docker Meetup Beijing 7/13/2014

Agenda

  • CoreOS features.
  • Intro to main components of CoreOS.
  • Demonstration for CoreOS cluster
  • management on my laptop.
  • Deploy Docker images on CoreOS.
  • Docker Meetup Beijing 7/13/2014

CoreOS Features

  • LXC and Application container.
  • No package manager.
  • Docker containers
  • Painless updating.
  • Clustered by default .
  • Distributed systems tools.
  • Service discovery .

Virtualization

  • Hypervisor
  • Container
  • Application
  • Container
  • lightweight

Hypervisor

  • Hardware emulation (many virtual hardwares ).
  • Host machine / Guest machine, can run different OSs.
  • Lower density, performance, scalability, security.

Container

  • Real machine, host provides Kernel,
  • one kernel many userspace instances.
  • Filesystem, network interface, etc.
  • High density, dynamic resource allocation.
  • Native performance, no overhead (almost).

Application Container

  • Starts from application (not /sbin/init as Container).
  • Filesystem: read-only, shared, slave, private.
  • User data, socket fd etc. 

Painless updating

  • CoreOS is currently booted off partition A.
  • An update is installed onto partition B.
  • Machine is rebooted onto the B partition.
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