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Docker-Hanoi @DKT , Presentation about Docker Ecosystem

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Van Phuc
Van Phuc

The document provides an overview of Docker Platform and Ecosystem. It begins with introductions and background on Docker, explaining how Docker solves the problem of dependency hell and portability issues by allowing applications to run in isolated containers that package code and dependencies. It then discusses key components of Docker including Engine, Registry, Machine, Swarm, Compose and tools like Toolbox and Cloud. The document concludes with examples of using Docker for continuous integration pipelines and microservices architectures.

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Docker Platform and Ecosystem VĂN ĐÌNH PHÚC - Docker HaNoi Mentor
About Me  Van Dinh Phuc (Philip Van) Personal email: Phucvd.ce@gmail.com Github : @phucvdb Technology Domain: ◼ Virtualization & Cloud Technologies focus on infrastructure (VDI, EUC, IaaS, PaaS) ◼ Linux Container ◼ Innovation Technologies  My current job: Cloud Solution Architect – FPT Software
Agenda ◼Docker Introduction ◼Ecosystem ◼Docker – Use Case ◼Q&A
Docker Introduction
Where did you hear about Docker ? https://medium.com/aws-activate-startup-blog/using-containers-to-build-a-microservices-architecture-6e1b8bacb7d1#.8i6rqwmf3
Where did you hear about Docker ? (Cont.)
– R. Callon, RFC 1925 - The Twelve Networking Truths “One size never fits all.”
Docker Story Source: dotcloud.com
The Challenge Source: dotcloud.com
The Matrix From Hell Source: dotcloud.com
Cargo Transport Pre-1960 Source: dotcloud.com
Also a matrix from hell Source: dotcloud.com
Solution: Intermodal Shipping Container Source: dotcloud.com
Docker is a shipping container system for code Source: dotcloud.com
Docker eliminates the matrix from Hell Source: dotcloud.com
WHAT IS DOCKER ? Docker containers wrap up a piece of software in a complete filesystem that contains everything it needs to run: code, runtime, system tools, system libraries – anything you can install on a server
Why Developers Care ◼ Build once…(finally) run anywhere* ◼ A clean, safe, hygienic and portable runtime environment for your app. ◼ No worries about missing dependencies, packages and other pain points during subsequent deployments. ◼ Run each app in its own isolated container, so you can run various versions of libraries and other dependencies for each app without worrying ◼ Automate testing, integration, packaging…anything you can script ◼ Reduce/eliminate concerns about compatibility on different platforms, either your own or your customers. ◼ Cheap, zero-penalty containers to deploy services? A VM without the overhead of a VM? Instant replay and reset of image snapshots? That’s the power of Docker Source: dotcloud.com
Why Devops Cares? ◼Configure once…run anything ◼ Make the entire lifecycle more efficient, consistent, and repeatable ◼ Increase the quality of code produced by developers. ◼ Eliminate inconsistencies between development, test, production, and customer environments ◼ Support segregation of duties ◼ Significantly improves the speed and reliability of continuous deployment and continuous integration systems ◼ Because the containers are so lightweight, address significant performance, costs, deployment, and portability issues normally associated with VMs Source: dotcloud.com
Why it works—separation of concerns ◼ Dan the Developer ◼ Worries about what’s “inside” the container ◼ His code ◼ His Libraries ◼ His Package Manager ◼ His Apps ◼ His Data ◼ All Linux servers look the same • Oscar the Ops Guy • Worries about what’s “outside” the container • Logging • Remote access • Monitoring • Network config • All containers start, stop, copy, attach, migrate, etc. the same way
More technical explanation ◼ High Level—It’s a lightweight VM ◼ Own process space ◼ Own network interface ◼ Can run stuff as root ◼ Can have its own /sbin/init (different from host) ◼ <<machine container>> • Low Level—It’s chroot on steroids • Can also not have its own /sbin/init • Container=isolated processes • Share kernel with host • No device emulation (neither HVM nor PV) from host) • <<application container>> • Run everywhere • Regardless of kernel version (2.6.32+) • Regardless of host distro • Physical or virtual, cloud or not • Container and host architecture must match* • Run anything • If it can run on the host, it can run in the container • i.e. if it can run on a Linux kernel, it can run WHY WHAT
Containers vs. VMs App A Hypervisor (Type 2) Host OS Server Guest OS Bins/ Libs App A’ Guest OS Bins/ Libs App B Guest OS Bins/ Libs AppA’ Docker Host OS Server Bins/Libs AppA Bins/Libs AppB AppB’ AppB’ AppB’ VM Container Containers are isolated, but share OS and, where appropriate, bins/libraries Guest OS Guest OS …result is significantly faster deployment, much less overhead, easier migration, faster restart
What is a container? In 4 bullet points: ◼Containers share the host kernel ◼Containers use the kernel ability to group processes for resource control ◼Containers ensure isolation through namespaces ◼Containers feel like lightweight VMs (lower footprint, faster), but are not Virtual Machines! Source: http://docker-saigon.github.io/post/Docker-Internals/
Why are Docker containers lightweight? Bins/ Libs App A Original App (No OS to take up space, resources, or require restart) AppΔ Bins/ App A Bins/ Libs App A’ Guest OS Bins/ Libs Modified App Copy on write capabilities allow us to only save the diffs Between container A and container A’ VMs Every app, every copy of an app, and every slight modification of the app requires a new virtual server App A Guest OS Bins/ Libs Copy of App No OS. Can Share bins/libs App A Guest OS Guest OS VMs Containers
Docker Profolio
Docker Engine ◼Core of the Docker platform ◼Runs on Linux to create the operating environment for your distributed applications ◼in-host daemon communicates with the Docker client to execute commands to build, ship and run containers
Docker Engine
Docker Registry There are 3 choices for use of a Registry: ◼A Public Cloud-hosted registry. The Docker Hub is the default registry used by the docker client and source of Officially maintained Docker images ◼An On-premise registry, through the commercially offered Trusted Docker Registry ◼A Self-hosted registry based on the official Open Source Docker Registry.
What are the basics of the Docker system?
Changes and Updates
Docker Machine You can use Docker Machine to: ◼Install and run Docker on Mac or Windows ◼Provision and manage multiple remote Docker hosts ◼Provision Swarm clusters
Docker Swarm
Docker Compose Developers docker-compose up Cloud or Private Infrastructure Plugins: Network and Volumes Operations Deploy
What is the native orchestration tool of Docker?
Docker ToolBox What’s in the Toolbox ◼Docker Engine ◼Compose ◼Machine ◼Kitematic OS supported: Window & MacOS
Docker Cloud A hosted service for Docker container management and deployment.
Docker Universal Control Plane
Docker Universal Control Plane (cont.)
Docker Ecosystem
Docker – Ecosystem support https://www.mindmeister.com/656846411#slideshow
Docker Community @Viet Nam Official meetup site: http://meetup.com/Docker-Saigon/ http://www.meetup.com/Docker-Hanoi/ Twitter: https://twitter.com/docker_saigon Github: https://github.com/docker-saigon https://github.com/dockerhanoi Youtube: https://www.youtube.com/channel/UC1t_GbTJudAAK9 Wqkg6-uLw https://www.youtube.com/channel/UCa1ieffjEYlfRgZTN l4Cg1A Facebook: https://www.facebook.com/DockerSaigon Slideshare: http://www.slideshare.net/Docker-Hanoi Slack: https://dockersaigon.slack.com http://docker-hanoi.slack.com Our interests: https://docs.google.com/document/d/1lhwK0YIC_KZ4F6o1rr h4wXfJTqdyplm3TZSIZN0X_UE/edit https://trello.com/b/KE000r5s/research
Docker – Use Case
Building a Continuous Integration Pipeline with Docker https://sreeninet.wordpress.com/2016/01/23/ci-cd-with-docker-jenkins-and-tutum/
Build a micro service with Docker A Docker –Hanoi’s Scenario: ◼At the beginning, Service #1 only runs in Node 2. ◼After that Service #1 scales to Node 2 ◼Via Docker API, Registrator will know the appearance of Service #1 on Node 2. ◼Registrator will register Service #1 with Consul. ◼In the meanwhile, Consul-Template in listening Consul. So Consul- Template will know the new service is up in Node 2. Finally, Consul- Template will trigger a reload command to Nginx add the new service into load balancer. https://www.facebook.com/events/986704731366039/
Thanks you !

More Related Content

Docker-Hanoi @DKT , Presentation about Docker Ecosystem

  • 1. Docker Platform and Ecosystem VĂN ĐÌNH PHÚC - Docker HaNoi Mentor
  • 2. About Me  Van Dinh Phuc (Philip Van) Personal email: Phucvd.ce@gmail.com Github : @phucvdb Technology Domain: ◼ Virtualization & Cloud Technologies focus on infrastructure (VDI, EUC, IaaS, PaaS) ◼ Linux Container ◼ Innovation Technologies  My current job: Cloud Solution Architect – FPT Software
  • 5. Where did you hear about Docker ? https://medium.com/aws-activate-startup-blog/using-containers-to-build-a-microservices-architecture-6e1b8bacb7d1#.8i6rqwmf3
  • 6. Where did you hear about Docker ? (Cont.)
  • 7. – R. Callon, RFC 1925 - The Twelve Networking Truths “One size never fits all.”
  • 10. The Matrix From Hell Source: dotcloud.com
  • 12. Also a matrix from hell Source: dotcloud.com
  • 13. Solution: Intermodal Shipping Container Source: dotcloud.com
  • 14. Docker is a shipping container system for code Source: dotcloud.com
  • 15. Docker eliminates the matrix from Hell Source: dotcloud.com
  • 16. WHAT IS DOCKER ? Docker containers wrap up a piece of software in a complete filesystem that contains everything it needs to run: code, runtime, system tools, system libraries – anything you can install on a server
  • 17. Why Developers Care ◼ Build once…(finally) run anywhere* ◼ A clean, safe, hygienic and portable runtime environment for your app. ◼ No worries about missing dependencies, packages and other pain points during subsequent deployments. ◼ Run each app in its own isolated container, so you can run various versions of libraries and other dependencies for each app without worrying ◼ Automate testing, integration, packaging…anything you can script ◼ Reduce/eliminate concerns about compatibility on different platforms, either your own or your customers. ◼ Cheap, zero-penalty containers to deploy services? A VM without the overhead of a VM? Instant replay and reset of image snapshots? That’s the power of Docker Source: dotcloud.com
  • 18. Why Devops Cares? ◼Configure once…run anything ◼ Make the entire lifecycle more efficient, consistent, and repeatable ◼ Increase the quality of code produced by developers. ◼ Eliminate inconsistencies between development, test, production, and customer environments ◼ Support segregation of duties ◼ Significantly improves the speed and reliability of continuous deployment and continuous integration systems ◼ Because the containers are so lightweight, address significant performance, costs, deployment, and portability issues normally associated with VMs Source: dotcloud.com
  • 19. Why it works—separation of concerns ◼ Dan the Developer ◼ Worries about what’s “inside” the container ◼ His code ◼ His Libraries ◼ His Package Manager ◼ His Apps ◼ His Data ◼ All Linux servers look the same • Oscar the Ops Guy • Worries about what’s “outside” the container • Logging • Remote access • Monitoring • Network config • All containers start, stop, copy, attach, migrate, etc. the same way
  • 20. More technical explanation ◼ High Level—It’s a lightweight VM ◼ Own process space ◼ Own network interface ◼ Can run stuff as root ◼ Can have its own /sbin/init (different from host) ◼ <<machine container>> • Low Level—It’s chroot on steroids • Can also not have its own /sbin/init • Container=isolated processes • Share kernel with host • No device emulation (neither HVM nor PV) from host) • <<application container>> • Run everywhere • Regardless of kernel version (2.6.32+) • Regardless of host distro • Physical or virtual, cloud or not • Container and host architecture must match* • Run anything • If it can run on the host, it can run in the container • i.e. if it can run on a Linux kernel, it can run WHY WHAT
  • 21. Containers vs. VMs App A Hypervisor (Type 2) Host OS Server Guest OS Bins/ Libs App A’ Guest OS Bins/ Libs App B Guest OS Bins/ Libs AppA’ Docker Host OS Server Bins/Libs AppA Bins/Libs AppB AppB’ AppB’ AppB’ VM Container Containers are isolated, but share OS and, where appropriate, bins/libraries Guest OS Guest OS …result is significantly faster deployment, much less overhead, easier migration, faster restart
  • 22. What is a container? In 4 bullet points: ◼Containers share the host kernel ◼Containers use the kernel ability to group processes for resource control ◼Containers ensure isolation through namespaces ◼Containers feel like lightweight VMs (lower footprint, faster), but are not Virtual Machines! Source: http://docker-saigon.github.io/post/Docker-Internals/
  • 23. Why are Docker containers lightweight? Bins/ Libs App A Original App (No OS to take up space, resources, or require restart) AppΔ Bins/ App A Bins/ Libs App A’ Guest OS Bins/ Libs Modified App Copy on write capabilities allow us to only save the diffs Between container A and container A’ VMs Every app, every copy of an app, and every slight modification of the app requires a new virtual server App A Guest OS Bins/ Libs Copy of App No OS. Can Share bins/libs App A Guest OS Guest OS VMs Containers
  • 25. Docker Engine ◼Core of the Docker platform ◼Runs on Linux to create the operating environment for your distributed applications ◼in-host daemon communicates with the Docker client to execute commands to build, ship and run containers
  • 27. Docker Registry There are 3 choices for use of a Registry: ◼A Public Cloud-hosted registry. The Docker Hub is the default registry used by the docker client and source of Officially maintained Docker images ◼An On-premise registry, through the commercially offered Trusted Docker Registry ◼A Self-hosted registry based on the official Open Source Docker Registry.
  • 28. What are the basics of the Docker system?
  • 30. Docker Machine You can use Docker Machine to: ◼Install and run Docker on Mac or Windows ◼Provision and manage multiple remote Docker hosts ◼Provision Swarm clusters
  • 32. Docker Compose Developers docker-compose up Cloud or Private Infrastructure Plugins: Network and Volumes Operations Deploy
  • 33. What is the native orchestration tool of Docker?
  • 34. Docker ToolBox What’s in the Toolbox ◼Docker Engine ◼Compose ◼Machine ◼Kitematic OS supported: Window & MacOS
  • 35. Docker Cloud A hosted service for Docker container management and deployment.
  • 37. Docker Universal Control Plane (cont.)
  • 39. Docker – Ecosystem support https://www.mindmeister.com/656846411#slideshow
  • 40. Docker Community @Viet Nam Official meetup site: http://meetup.com/Docker-Saigon/ http://www.meetup.com/Docker-Hanoi/ Twitter: https://twitter.com/docker_saigon Github: https://github.com/docker-saigon https://github.com/dockerhanoi Youtube: https://www.youtube.com/channel/UC1t_GbTJudAAK9 Wqkg6-uLw https://www.youtube.com/channel/UCa1ieffjEYlfRgZTN l4Cg1A Facebook: https://www.facebook.com/DockerSaigon Slideshare: http://www.slideshare.net/Docker-Hanoi Slack: https://dockersaigon.slack.com http://docker-hanoi.slack.com Our interests: https://docs.google.com/document/d/1lhwK0YIC_KZ4F6o1rr h4wXfJTqdyplm3TZSIZN0X_UE/edit https://trello.com/b/KE000r5s/research
  • 42. Building a Continuous Integration Pipeline with Docker https://sreeninet.wordpress.com/2016/01/23/ci-cd-with-docker-jenkins-and-tutum/
  • 43. Build a micro service with Docker A Docker –Hanoi’s Scenario: ◼At the beginning, Service #1 only runs in Node 2. ◼After that Service #1 scales to Node 2 ◼Via Docker API, Registrator will know the appearance of Service #1 on Node 2. ◼Registrator will register Service #1 with Consul. ◼In the meanwhile, Consul-Template in listening Consul. So Consul- Template will know the new service is up in Node 2. Finally, Consul- Template will trigger a reload command to Nginx add the new service into load balancer. https://www.facebook.com/events/986704731366039/