sitcon 2016 - arm cloud project
TRANSCRIPT
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請勿拍打,歡迎餵⻝!請勿使⽤閃光燈,會嚇到講者
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ARM Cloud Project伊達@SITCON
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–伊達
「⼈⽣有很多不該做的事」
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–伊達
「其中⼀項就是告訴 jserv 你有⼀個計劃」
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About me
• 伊達 @tjjh89017!
• 毫無回應就只是個⼤學⽣!
• 想要我的肝嗎?我把我的肝都放在 jserv 那裡了
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為什麼
• 有 x86 VPS ,為什麼沒有 ARM VPS!
• 有 x86 VPS ,為什麼需要 ARM VPS
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其實
• 其實有 ARM VPS ,法國公司 Scaleway 有提供!
• 其實不需要 ARM VPS 就可以提供 ARM 相關開發
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但是
• 但是法國到台灣的網路延遲太⻑!
• 但是模擬器跟真實 CPU 還是有相當的差距
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所以
• 在台灣建置 ARM VPS!
• 提供 Native ARM 開發與執⾏環境
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為各位隆重介紹
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DozenCloud Project
• 伊達雲計劃!
• 在地化,為鄉親服務!
• 開源軟體製成,可安⼼⻝⽤!
• http://dozencloud.org
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其實⼀開始 jserv ,對這專案也沒啥興趣!
直到膝蓋中了⼀箭
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組成
ARM!Openstack!Docker
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ARM
• 精簡指令集(別於 x86 複雜指令集)!
• 低成本!
• 低耗能!
• 廣泛運⽤於⾏動裝置以及嵌⼊式裝置!
• 甚⾄於伺服器市場也可以⾒其存在
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48 cores
48 cores
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Openstack• 資源管理!
• 快速部署!
• 快速規模擴展(Scale Up or Out)!
• ⾼可⽤性(HA)!
• 軟體定義網路(SDN)
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http://docs.openstack.org/openstack-ops/content/network_troubleshooting.html
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http://docs.openstack.org/openstack-ops/content/network_troubleshooting.html
Physical Machine
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http://docs.openstack.org/openstack-ops/content/network_troubleshooting.html
VM
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http://docs.openstack.org/openstack-ops/content/network_troubleshooting.html
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Docker
• 核⼼容器技術前端(Container Front-end)!
• 輕量級!
• 簡單建⽴映像檔!
• 寫時複製(Copy-on-Write)
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Emulation
Hardware
Host OS
EmulatorProgram Program
Guest OS Guest OS
Program Program
Virtual Hardware
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Hypervisor
Hardware
Host OS
HypervisorProgram Program
Guest OS Guest OS
Program Program
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Container
Hardware
OS
Program Program Program Program
Container Container
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「低消耗的 ARM !
彈性資源管理的 Openstack!
容器技術的 Docker」
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「⼀切都相當美好,對吧。」
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「代誌不是憨⼈想的那麼簡單」
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ARM Sucks
• 硬體碎⽚化(Fragmentation)!
• Linux 核⼼⽀援倚賴廠商⽀援
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更別提某公司推出 ARMv8 伺服器!
提供⼀個功能不全的 Ubuntu 檔案
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沒有 iptables 的 Linux 能⽤嗎?(怒)!
(╬゚ ◣ ゚)
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總之,因為 Linux 核⼼功能不全!
⼩弟我與交⼤某不知名學弟!
就開始了編譯 Linux 核⼼的旅程
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無限的 Kernel Panic 跟 ARM Exception
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Openstack Sucks
• 複雜的網路架構!
• 效能消耗!
• 沒有⻑期⽀援版本
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http://docs.openstack.org/openstack-ops/content/network_troubleshooting.html
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Docker Sucks
• 開發⺫的不同,不適合 VPS 使⽤!
• 使⽤上並沒有跟⼀般 VM 相同
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其實 Docker ⺫的
• 快速部署專案元件!
• 固定軟體版本號!
• ⽅便建⽴開發及測試環境!
• 程序間隔離
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並不是拿來當 VPS ⽤的
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⼀般來說
• 你會⽤!
• servicesshstart
• systemctlstartssh
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但是
• Docker 不能這樣搞!
• 你只能!
• /usr/bin/sshd-D
• 某些情況下就沒辦法執⾏其他程式
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雖然
• 還是有些⽅法可以讓你⽤ systemd ,但是很⿇煩!
• e.g.systemd-nspawn
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DozenCloud
• x86 Server!
• Banana Pi M2
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Compute Node
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Controller & NAS
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–伊達
「別擔⼼,我⼀定會做好做滿」
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Before Demo
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說個⼩故事!
為什麼說千萬不要跟 jserv 說有個計劃呢?
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這樣你可能會在⼩年夜被 jserv 問家裡地址!
然後⼤年初⼀就收到裝著 3 張 rpi 和⼀本書的包裹
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DEMO
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Q&A
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Ref• http://s3.amazonaws.com/digitaltrends-uploads-prod/2015/01/ARM-Chip.jpg!
• https://www.raspberrypi.org/wp-content/uploads/2015/01/Pi2ModB1GB_-comp.jpeg!
• http://1.bp.blogspot.com/-79KWtVxyJDY/VD1Pdk42kII/AAAAAAAA7b0/QHBgZbpJgNQ/s1600/nexus%2B5.jpg!
• https://upload.wikimedia.org/wikipedia/commons/thumb/8/80/The_OpenStack_logo.svg/2000px-The_OpenStack_logo.svg.png!
• http://26a0ff8ca8ba32139f7d-db711c577a50b6bdc946ea71aaca027d.r97.cf1.rackcdn.com/openstack-logical-arch-folsom.jpg!
• http://26a0ff8ca8ba32139f7d-db711c577a50b6bdc946ea71aaca027d.r97.cf1.rackcdn.com/openstack-conceptual-arch-folsom.jpg!
• https://simonopitz.me/content/images/2015/12/docker-wallpaper-grey.jpg!
• docs.openstack.org/openstack-ops/content/network_troubleshooting.html!
• https://s3.amazonaws.com/media-p.slid.es/uploads/310204/images/1289427/docker-unionfs.png