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    # DevOps Overview - 陳正瑋(艦長) {%hackmd @DevOpsDay/BJXaW1_k6 %} 這一場適合 DevOps 新手聽 # 暖場 - web server 故障 - 在本機執行是沒問題的 - Developer 認為是 Operator 的問題 - 公司的產品、燒起來了,在我的電腦上面,跑得很好,到底是誰的問題,誰的責任?你會怎麼辦? # DevOps 現況 - 三原則 - 不要探討 DevOps 的定義 (定義太廣,不同人有不同答案) - DevOps 是什麼? - A+B - A+B+C - B+C - 一個 DevOps 各種表述,不是職缺是一種文化 - 當一個東西開始普及,開始獲得關注,會出現什麼?我是 DevOps 教練,Certified Jenkins Engineer (CJE) 給 DevOps 考的認證 - 你請教十位 IT 專家,會獲得十一種 DevOps 定義 - 每家公司元素表都不同 - 金字塔,由上往下 - 價值觀 - 工作原則 - 實踐方法 CI/CD - 工具 - DevOps 已經演化變成許多的 xxxOps # DevOps 起源 - hashtag - `#devops` (2009 年 DevOpsDays Ghent in Belgium) - 用來串連議題 - 如何跨越 Dev 跟 Ops 的隔閡 Patrick DevOps 之父 如何敏捷起來 一天部署10次(世界首例成功案例) - dev and ops cooperatetion at flicker https://www.youtube.com/watch?v=LdOe18KhtT4 - 每年主辦活動往上攀升,直到 2020-2021因為疫情而下降 - 台灣在 2017 年,開始加入 DevOps 研討會行列 - DevOps 源自技術社群的互動交流,逐漸變成影響全球 Buzzword # DevOps 定義 - AWS: - DevOps 是集文化哲學、實務與工具於一身的結合,可提升組織快速交付應用程式和服務的能力:相較於使用傳統軟體開發與基礎設施管理程序的組織,這種作法能更快速地開發和改進產品。這樣的速度讓組織可以提供更好的服務給客戶,並在市場上更有效率地競爭。 - Ref: https://aws.amazon.com/tw/devops/what-is-devops/ - **順暢的交付有用的價值** - RedHat: - DevOps 是一種企業文化、自動化和平台設計的方式,藉由提供快速、高品質的服務,並仰賴步調快速且可重複運用的 IT 服務,以提升業務價值和應對能力。DevOps 的目的是將傳統應用程式與較新型的雲端原生應用程式和基礎架構互相連結。 - Ref:https://www.redhat.com/zh-tw/topics/devops - wiki: - DevOps(Development和Operations的混成詞)是一種重視「軟體開發人員(Dev)」和「IT運維技術人員(Ops)」之間溝通合作的文化、運動或慣例。通過自動化「軟體交付」和「架構變更」的流程,來使得構建、測試、發布軟體能夠更加地快捷、頻繁和可靠。 - Ref:https://zh.wikipedia.org/zh-tw/DevOps - 《Effetive DevOps》: - devops 是一場文化運動,它改變個人如何看待自己的工作、重視已完成 工作之多樣性 (Diversity) ,devops 支持各項能夠幫助企業加速實現其價值的流程,並且衡量因為社會和技術變革所造成的影響。 - 文化運動 幫助企業實現其價值 - Ref: https://chengweichen.com/2018/06/effective-devops.html - 以下為講師的版本,其他人會有不同見解: - 狹義 - 以打通開發至維運整條工作流程為基礎的一套技術解決方案,令企業能夠更靈活的管理且運用整體 「IT資源」,提升企業交付產品的效率與服務的品質。(IT資源,包含軟硬體設備及 人力資源。) - 打通開發跟維運整條工作流程 - 廣義 - Devops 是一場由 IT 轉型引發的全球企業轉型運動,目的是幫助企業因應全球化高度競爭的市場變化,讓企業能迅速且持續的向客戶提供高品質且有價值的產品及服務。 瞎子摸象 全貌不斷在改變,問不同的人,會有不同的答案,給新手:不用討論定義,在實踐 DevOps 的路上,你做了什麼,你怎麼做,可以幫助你解決問題嗎? **如何交付價值** DevOps 是什麼 - 超過十年歷史的關鍵字, Buzzword - 隨著時代變遷,不斷被加入更多新的思維與觀點 - 發展與 IT 技術和軟體開發交付有極大的關係,思維演進 - Devops重視**交付價值** - 沒有公認標準,但各方定義都很類似 - 於其討論DevOps, 不如討論公司現有的問題 # DevOps 核心精神 - Dev and Ops Cooperation 開發跟維運能夠好好合作 - 有開發團隊跟維運團隊,通常是中間有一道牆,Something Wrong,沒辦法好好溝通的時候,就沒有辦法產生好的成果 - Dev - plan - code - build - test - release - Ops - release - deploy - operate - release 的時候才溝通,才發現問題,組織人數越來越大的時候,這中間的牆有多厚?這兩個團隊真的有辦法好好協作嗎?不應該是 release 才做交集,這才是 DevOps 所期待的 - Customer (Customer & Business市場快速變化) - Business (Business & Development 產品需求快速變化) - Development (Development & Operations產品需求快速變化 快速響應變化) - Operations (安全可靠,部署次數不用多穩定就好) - 角色如何溝通? - Agile 敏捷快速使CB溝通 - 順暢的交付價值 - DevOps 使 DO 溝通 # 總結與回顧 - 源自於「技術社群」的互動交流,逐漸變成影響全球的 Buzzword - 軟體工作的產出如何滿足客戶需求,團隊期待的價值? - 消除浪費、持續改善、讓價值交付最大化,克服 Silos 之間的一切摩擦 - DevOps 在解決人的問題 (DevOps is a human problem),再去拆解的話,包含團隊部門之間的工作流程,涉及文化等複雜的議題 - 不只是DevOps而是**調適性**(Adaptability) - 無需白紙黑字的定義,保持開放的態度。 - DevOps 並不是一場百米賽跑,而是一趟長久的遠程,並非一時說想要就能夠立即有成效

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