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    # How FinTech Embrace Change Management - smalltown(蔡宗城)│AMIS {%hackmd s5C2l4iTQ7yK8Pg4ASCGvw %} > 請從這裡開始共筆 你怎麼在你的production環境下做變更? 有經過approve才能做嗎? #### No one knows ____ Change(s) in the Production - Why - What - Who - How - When ## Change management 把production上要做的改變,標準化 => 降低風險 ### Change types (ITIL) - standard change: 低風險,跟著SOP - emergency change: hotfix - normal change: infrastructure, config Non standard change 要提出 request for change (RFC) #### 傳統的做法 Change Request Form(request for change, RFC),把表單填好送出去,簽核 速度慢,新創公司還沒做出來就先掛了 #### 現代化公司,實際可能的作法 - 沒辦法(沒時間)自己做RFC ticket system - 搭配chatbot - 自動化給予權限的流程 #### Keep only necesary step in RFC flow 將影響降到最低 #### 有效性 用chatbot自動化。變更被提出來,還沒有被approve之前,是不可以做變更的 先將系統 lockup #### 人的問題 持續溝通 先從簡單的做起 - 先從 chatbot 做紀錄,方便後續審核上 production 操作的必要性 - 從 chatbot note 中了解, production 上需要哪些操作 or 哪些 action 是可以避免/automation, 安排 backlog 去解決 - e.g. - CD script broken - CD pipeline not implemented - 主管支持 ## Implement #### Analysis Changes in Production 分析出change的各種形式 - permission grant佔20% - Production release佔70% - others 所以首要先簡化production release #### Define RFC Process 流程圖 ### System design ![](https://i.imgur.com/wcFi1hJ.jpg) #### 事前準備 - 定義出組織內每個人,在系統內是誰,要有統一且唯一的 UID - RFC system,要把不同BU,不同team拆開來。否則表單填寫會很難選 #### Demo ![](https://i.imgur.com/KvnkxHb.jpg) * Notify the RFC result to Slack/Teams let members/ops team view the detail information easily ### Permission grant/revoke - 啟用認證機制 - 帳號要先做好管理 - auditing log enable #### Demo ![](https://i.imgur.com/Lulnvo6.jpg) - Automate the each workflow and show the detai status on teh RFC Slack channel - Permission approval - Permission grant - Permission remove ### Production release - 了解每個team的git flow,RFC的hook要插在哪個環節 - 定義RFC怎樣才可被approve => 使用 github action 的 status check 增加部署的信心 - code review - RFC check - testing - code coverage #### Demo ![](https://i.imgur.com/1tqzVsj.jpg) ###### tags: `DevOpsDays Taipei 2021`

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