如何在微服務系統架構上導入 CI/CD

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如何在微服務系統架構上導入 CI/CD Hash Lin MOPCON 2021 商務部長 Lead Engineer @ Askmiso

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Who am I # Askmiso Lead Engineer # Lead SRE & Backend # Remote work # MOPCON Organizer Hash Lin

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Agenda Why we need CI/CD How to deploy our service with CD Best practice of CI/CD 1 2 3

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CI CD Continuous Integration Continuous Deployment 名詞解釋

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Integration 檢查程式是否吻合專案文化檢查程式是否吻合 Coding Style 執行單元測試安裝專案所需套件檢查程式是否有問題手動進行程式測試 CI

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Continuous Integration

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逐一推送上所有 Production 環境部屬流程抓取最新的程式碼將程式碼進行安裝流程並且打包

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Deployment 手動執行部署流程 ○ 打包程式上傳到 Server ○ 透過 rsync 來進行同步一鍵部署流程 ○ 撰寫 Shell Script ○ 使用 Ansible CD

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太多瑣事了

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導入 CI/CD 解決了什麼問題推送即檢查減少人為介入全自動化的流程

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導入一二三撰寫 CI config file 選擇 CI/CD 平台給予 CI 權限進行部署

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CI/CD Platform

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Github Action Github CI/CD platform open source action model Support service

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Gitlab CI Open source Self hosted Support service

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Gitlab x JIRA

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Gitlab x ClickUp

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Container Management

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Without container management Not easy to manage container Use docker run or docker-compose Not easy to scale

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Easy to transfer environment to different cloud Interface of infrastructure yaml or helm Kubernetes

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Nomad Jar / shell script ... Secret management: Vault Service Mesh: Consul Light

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Cloud solution Google Cloud Run Google App Engine Aws Elastic Container Service

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Deploy Process Push docker image to docker registry Authentication Update config of deployment Update Strategy

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Let Run It

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Implement CI/CD 決定每個 Stage 要做的事情決定要在 CI 中跑哪些檢查開始撰寫 Config File 放上 CI platform

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Sending Merge Request Develop Review & Merge Request Run CI Pipeline 1. Install Project 2. Unit Test Build Docker Image Docker Hub / Private Docker Registry Continuous Integration Continuous Deployment

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Conclusion

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Continuous Integration (CI) 安裝套件相依性、應用程式檢查 Coding Style 、 Syntax Error 測試 Unit Test 、 Integration Test 、 E2E Testing

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Continuous Integration (CI) 將繁瑣的事情全部自動化可以更快速的發掘問題更放心的提交程式碼

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Container Management Kubernetes Nomad

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Best Practice with CI/CD 敏感資訊不要放在 code base 中善用 Environment Variable / dotenv 給 CI Runner 適量的權限

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Thank You!