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Docker. General overview

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Mirantis IT Russia
Mirantis IT Russia

The document summarizes a Docker meetup event being organized in Moscow on February 26, 2015. It provides details on why the meetup is being held, including for informal technical discussions on Docker and as an event partnered with Openstack.ru. An overview of Docker is given, explaining how it automates application deployment as lightweight portable containers that can run anywhere. Key Docker concepts like images, registries, and containers are also summarized.

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First Moscow Docker Meetup 26 02 2015 Fabrizio Soppelsa fsoppelsa@mirantis.com
A Docker meetup Why a meetup ● Informal meeting of friends ● Technical discussions on Docker ● Openstack.ru is our event partner
Docker. General overview
Why Docker Docker is an open-source engine that automates the deployment of any application as a lightweight, portable, self-sufficient container that will run virtually anywhere.
Virtual machines and Containers
In a nutshell ● Unified command interface/API to manage containers - start, stop, pull, pause, commit ● The interactive Docker tutorial https://www.docker.com/tryit/ ● Docker exploits some of the Linux kernel
Implementation ● Building blocks: namespaces + cgroups ● Isolation: namespaces (filesystem, pids, net, ipc, hostname, uids) ● Management: cgroups: process grouping ● libcontainer
Docker is made of... ● The Docker server and client ● Docker images ● Registries (i.e. the Docker Hub) ● Containers
Docker in the real world ★ Separation: PaaS and SaaS ★ Isolation: Shared hosting ★ Fast: Sandboxes ★ Easy: Software deployments ★ Repeatable: CI and testing
Why is it so f***ing popular ● Easy to use (basic features) ● Software isolation and portability ● Thousands of ready images ● Density ● Start-up and shut-down times
End of the virtualization age? HET
Ecosystem ● Written mostly in Go ● The Dockerfile ● Shipyard and other UIs ● Orchestration tools
Community
1. Matthew Mosesohn (Mirantis) Docker off the grid 2. Denis Zaitsev (Yandex) Scaling the Docker Registry 3. Sergey Melikyan (Mirantis) Docker and OpenStack Murano 4. Andrey Vagin (Parallels) Libcontainer: Joining forces under one roof 5. Plan B: eer! Today

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Docker. General overview

  • 1. First Moscow Docker Meetup 26 02 2015 Fabrizio Soppelsa fsoppelsa@mirantis.com
  • 2. A Docker meetup Why a meetup ● Informal meeting of friends ● Technical discussions on Docker ● Openstack.ru is our event partner
  • 4. Why Docker Docker is an open-source engine that automates the deployment of any application as a lightweight, portable, self-sufficient container that will run virtually anywhere.
  • 5. Virtual machines and Containers
  • 6. In a nutshell ● Unified command interface/API to manage containers - start, stop, pull, pause, commit ● The interactive Docker tutorial https://www.docker.com/tryit/ ● Docker exploits some of the Linux kernel
  • 7. Implementation ● Building blocks: namespaces + cgroups ● Isolation: namespaces (filesystem, pids, net, ipc, hostname, uids) ● Management: cgroups: process grouping ● libcontainer
  • 8. Docker is made of... ● The Docker server and client ● Docker images ● Registries (i.e. the Docker Hub) ● Containers
  • 9. Docker in the real world ★ Separation: PaaS and SaaS ★ Isolation: Shared hosting ★ Fast: Sandboxes ★ Easy: Software deployments ★ Repeatable: CI and testing
  • 10. Why is it so f***ing popular ● Easy to use (basic features) ● Software isolation and portability ● Thousands of ready images ● Density ● Start-up and shut-down times
  • 11. End of the virtualization age? HET
  • 12. Ecosystem ● Written mostly in Go ● The Dockerfile ● Shipyard and other UIs ● Orchestration tools
  • 14. 1. Matthew Mosesohn (Mirantis) Docker off the grid 2. Denis Zaitsev (Yandex) Scaling the Docker Registry 3. Sergey Melikyan (Mirantis) Docker and OpenStack Murano 4. Andrey Vagin (Parallels) Libcontainer: Joining forces under one roof 5. Plan B: eer! Today