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Docker and DevOps --- new IT culture
This document discusses how Docker and DevOps introduce a new IT culture. It provides an overview of Docker and containers, explaining how Docker allows packaging applications and dependencies into standardized units. It then discusses aspects of the DevOps methodology like configuration management, continuous integration, and maintaining consistent environments across development and production. The document argues that Docker streamlines processes like environment setup, updates, integration testing, and infrastructure changes in a DevOps workflow.
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Docker and DevOps --- new IT culture
- 1. New IT culture:Docker & DevOps Docker 和 Devops 所帶來的新 IT 文化 Terry Chen 陳彥村 Engineer @ QNAP
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- 4. Who am I? https://tw.linkedin.com/in/seterrychen https://github.com/seterrychen https://twitter.com/seterrychen ●Backend Engineer : Java, Python, Linux ● QNAP Container Station/Linux Station ● TrueTel Telecom Value-added services
- 5. QNAP( 威聯通 )NAS From:http://www.slideshare.net/QNAP_Inc/general-tech-trainingstorageabcqnap20140302compressed-copy Network
- 6. QNAP( 威聯通 )NAS
- 7. QNAP App Center ●Customize your QNAP NAS with Apps
- 8. What is Container? ●Operating-system-level virtualization Hardware Operating system Container Container Container
- 9. What is Container? Hardware Linux ContainerContainer Container Cgroups Namespaces ● Operating-system-level virtualization
- 10. What is Container? ●Operating-system-level virtualization ● Cgroups Initial release : 2007 kernel version : 2.6.24 ● Namespaces Initial release : 2002 kernel version : 2.4.19
- 11. What is Container? ●Operating-system-level virtualization Hardware Linux Container Container Container Docker/LXD
- 12. Docker ● Docker allowsyou to package an application with all of its dependencies into a standardized unit for software development. Others App image
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- 14. Images center -Docker Hub
- 15. The power ofDocker From:https://yq.aliyun.com/articles/32071
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- 18. VM vs Container From: https://www.docker.com/what-docker
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- 22. Unikernel Hardware OS kernel Runtime &Libraries Application binary Application configuration Hardware Unikernel App Hypervisor Hypervisor
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- 26. DevOps From : 10+Deploys Per Day: Dev and Ops Cooperation at Flickr http://www.slideshare.net/jallspaw/10-deploys-per-day-dev-and-ops-cooperation-at-flickr
- 27. DevOps From : 10+Deploys Per Day: Dev and Ops Cooperation at Flickr http://www.slideshare.net/jallspaw/10-deploys-per-day-dev-and-ops-cooperation-at-flickr
- 28. Create Dev/Prod Environment From:http://qtmoko.org/2015/12/26/everything-you-need-to-know-about-bare-metal-servers/ Docs:about how to setup the environment
- 29. How to recreatethe environment? Docs: about how to setup the environment From:http://www.tayloreason.com/corkscrew/archives/finding-your-perfect-match-online-wine-clubs-retailers-and-winery-websites/attachment/typing-on-computer/ From:https://commons.wikimedia.org/wiki/File:Gorilla-server.svg
- 30. How to recreatethe environment? In DevOps ● Configuration management: describe infrastructure as code From:https://www.getfilecloud.com/blog/2014/08/top-8-configuration-management-tools-for-sys-admins/#.VzM7bqNcSko
- 31. How to recreatethe environment? In DevOps ● Configuration management: describe infrastructure as code - hosts: dev_host tasks: - name: Install packages which are absent apt: name={{ item }} state=present update_cache=yes with_items: - vim - curl - git - docker-engine become: yes
- 32. How to recreatethe environment? In DevOps ● Configuration management: describe infrastructure as code - hosts: dev_host tasks: - name: Install packages which are absent apt: name={{ item }} state=present update_cache=yes with_items: - vim - curl - git - docker-engine become: yes
- 33. How to recreatethe environment? In DevOps with Docker ● Just install Docker and pull image to create the environment - hosts: dev_host tasks: - name: Install packages which are absent apt: name=docker-engine state=present update_cache=yes become: yes - name: Pull Docker image docker: name: myapplication image: someuser/appimage state: reloaded pull: always
- 34. How to upgrade/patchthe environment? Openssl Heartbleed
- 35. How to upgrade/patchthe environment? ssh
- 36. How to upgrade/patchthe environment? In DevOps $ ansible -i hosts all -u root -m apt -a “name=openssl state=latest update_cache=yes”
- 37. How to upgrade/patchthe environment? In DevOps with Docker ● Using new image to create the new environment image Container New image Container
- 38. Continuous Integration(CI) Developers Commit &push Version control systems CI tools Trigger Checkout Compile Test Archive
- 39. Continuous Integration(CI) Developers Commit &push Version control systems CI tools Trigger Checkout Compile Test Archive
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- 41. Continuous Integration(CI) Compile withDocker C++ toolchain Container Python 2.7 Package & Lib Container Python 3.5 Package & Lib Container Go 1.5.4 Go dependency Container Go 1.6.2 Go dependency Container Ruby 2.3.1 Ruby Gem Container
- 42. Continuous Integration(CI) Testing withDocker From:http://www.seleniumhq.org/projects/remote-control/
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- 44. Container Station Environment -hosts: dev_host tasks: - name: Install packages which are absent apt: name={{ item }} state=present update_cache=yes with_items: - vim - curl - git - docker-engine become: yes Infrastructure change GitLab Commit & push Jenkins Polling Build Output Vagrant box
- 45. Container Station Environment Developers $vagrant init url/container-station $ vagrant up $ vagrant ssh
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