[Docker Taipei Meetup#2] 關於Docker & Jenkins 跟 Docker in Golang
其實是很臨時去參加的，所以一發現有空位馬上就參加，對於Docker本身也是一知半解，也希望能透過這些聚會能有更多的了解．
這裡簡單的記錄一下我的心得，後面是我的速記：
心得:
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Docker & Jenkins by Casear Chu
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這一篇演講相當的特別，讓你與一般Docker 與Jenkins 能想到的不一樣．
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主要的架構是根據在Docker in Docker (DinD) 想出來的．也就是在Docker裡面自己再去建立並且讀取其他的docker．
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這裡的方法主要如下：
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先建立一個ubuntu docker 去安裝Jenkins
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然後Jenkins 有兩個工作專案：
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一個是下載node.js 系統的image build 成另一個docker
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一個是去下載修改的node.js 程式碼，並且定期地在第一個docker上跑測試
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整個方法相當特別，測試完之後．可能需要完全移除才會乾淨．不過簡單又不會影響太多部分．
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Docker in Golang by Jamie Sa slide
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主講人相當的有趣的，主要是來探討為什麼docker會用到golang 來撰寫
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所以一開始會講到當初 docker 創辦人遇到一個什麼樣的狀況，以及簡單的介紹LXC (docker 系統的核心)
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並且很有趣的來觀察github 上面docker project的狀態，並且分析第一個submit的整個架構與當初兩個創辦人是如何去思考整個系統的架構．
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令人相當驚訝的是第一個docker的submit竟然就是撰寫我們看到的web docker console (是應該花一點時間好好了解人家的架構設計的用心）
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http://www.meetup.com/Docker-Taipei/events/188846162/
Docker & Jenkins by Casear Chu
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Except Jenkins (other CIs)
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Travis
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Door.io (not sure)
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Docker in Docker
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Scenario:
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Jenkins in one Docker
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Use Jenkins to launch other docker for CI testing
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WebSite:
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Detail:
- Launch one ubuntu docker and install docker in this ubuntu.
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Docker Jenkins
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Need apt-get jenkins from ubuntu image not jenkins image
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Because need Docker in Docker in site.
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Jenkins using docker (two processes)
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https://docs.docker.com/articles/ambassador_pattern_linking/
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Docker System building process
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Check github periodically
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download node.js system(private repository) and build docker
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node.js image process
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Git pull node.js code
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run docker system to load node.js
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run test
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Note about report:
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- docker run -d (wait test report finished)
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Using NVM (node. version manager) to switch variance node.
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- Note: npm install will take time.
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Jenkins might need restart when installed plugin
- use _docker stop _and _docker start _for this
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file mapping
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[https://registry.hub.docker.com//busybox/](https://registry.hub.docker.com//busybox/)
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docker run -v source folder; mapping folder busybox
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using docker -privileged
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• Docker in Golang by Jamie Sa
https://speakerdeck.com/jamessa/docker-in-golang_
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About presenter Founder
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App:Insta-3D https://itunes.apple.com/us/app/insta3d-instantly-create-your/id883125430?mt=8 )
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Take photo and send image to cloud server to find mapping 3D modeling.
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Docker system
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Base on LXC
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PID namespace is most import improvement in Linux kernel 2.6.4.for LXC which docker is based on this architecture.
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Most of the appeal for me is not the feature that GO has, but rather the features that have been intentionally led out — People said about Golang
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Why use Golang for Docker by docker founder (slide)
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Static compilation
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Neutral
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It has what we need
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full development environment
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multi-arch build
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Docker first version is write console mode in web (as sample in docker.io)
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利用Github docker 的change list 來了解整個 Docker 的建立的想法
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- 第一個submit 把docker console建立起來，並且根據LXC來創立docker的骨幹
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Docker 的優點
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更小（不需要整個VM的肥大的系統)
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更快
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Not related but reference:
