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    # 以產品思維驅動的 DevOps 策略:金融業 AI 團隊的實踐之旅 - 吳明倫 {%hackmd @DevOpsDay/BJXaW1_k6 %} >講者背景:DevOps Engineer 講者個人網站:https://minglunwu.com/about/ ## Table of contents - 多團隊的 CI/CD 策略選擇 - 產品思維的建立 - 我們遭遇了什麼樣的挑戰? - 結論與反思 ### 關於玉山銀行智能金融處 - ML Engineers - Data Engineers ### 多團隊的 CI/CD 策略選擇 - Centralized Strategy - 好處: - 一致性高 - 快速啟動 - 目前使用此架構 - Why? - 因為金融業需要確保 CI/CD 流程皆符合規範 - 進到 staging 之前,要做 unit testing, link check 等 - 希望 MLE 團隊專注於建模,透過共通的 CI/CD pipeline 部署機器學習服務 - Decentralized Strategy - 好處: - 靈活度高 - 擁抱 DevOps,成長性比較高 ![](https://hackmd.io/_uploads/S1wpvZgxp.jpg) ### 產品思維的建立 滿足組織內部的需求 > "Satisfy the needs of users internal to your organization or enables your organization to satisfy the needs of its customers." ### 我們遭遇了什麼樣的挑戰? - 挑戰 1. 無力優化產品 - 維運成本過高 - 初始化階段,除了 Yaml 之外 - 還需要設定成員權限 - service connection - branch policy - 建立一個專案,需要經歷 14 個步驟,30 分鐘的時間 - 解決方案:建立自動化流程 - 梳理既有流程: 建立「手動」的標準作業程序 - 封裝 Azure DevOps 的 API,將原本的 UI 操作改成半自動的 Runbook - 混亂時期/建立手動 SOP/半自動化腳本 - 效益: - 降低例行性的維運工時 30min -> 30sec - 提供作業正確率,不再出現人為設定錯誤的事件 - 挑戰 2. 產品使用者的客服需求多 - 溝通成本高 - MLE 可透過 Git Tag 選擇執行不同類型的任務 - 使用者如果有任何問題,會直接找 CI/CD Core Team,導致人力不足 - 解決方案:來寫文件!Documentation System - [Documentation System](https://documentation.divio.com) 由 DIVIO 提出,將技術文件依照『目的』和『目標客群』劃分為四大類 - 使用者真的透過文件解決問題 - 使用者完全不看文件,還是來問問題 - 看完文件之後,還是來問問題 - - 挑戰 3. 內部產品缺乏量化指標 - 解法: 建立 CI/CD 可觀測性 - 掌握產品現況 - 辨識錯誤情境 - 定位用戶痛點 - 尋找錯誤根因 - 透過排程工具,收集 Azure DevOps 的使用數據 - Why not DORA? - 每個專案對於成功的定義都不同 - 衡量的是 Project 的 DevOps 效率 - 站在 Core Team 的角度,需要「產品該如何修正」的指標 - 收集指標的步驟 - Step 1. 掌握產品現況 - 取得產品當前的使用狀況,各個環境 CI/CD 失敗率 - 失敗率 - 部署次數 - 失敗細節 - Step 2. 識別錯誤情境 - 識別用戶在什麼情境下出現錯誤 - Step 3. 定位用戶痛點 - 了解現況之後,深入尋找用戶的功能痛點 - 失敗任務統計 - 失敗詳細任務 - Step 4. 尋找錯誤根因 - 針對功能痛點,找出原因 - Reactive - Active - Proactive (Core Team的角色變化) ### 結論 - 多團隊情境下的 CI/CD 部署策略 - Centralized Strategy - Decentralized Strategy - CI/CD Core Team 在優化產品過程中遭遇的挑戰 - 維運成本高:例行性、重複性高的維運工作 - 溝通成本高:重複性的使用者客服 - 缺乏量化數據 ![](https://hackmd.io/_uploads/BJH7Jzglp.png) --- ## 聊天區 老笑話一則: 工程師四大討厭 - 討厭寫文件 - 討厭別人不寫文件 - 討厭看文件 - 討厭別人不看文件

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