From DevOps to GitOps with GitLab Cheng Wei Chen 陳 正瑋 DevOps Engineer @ 得寬科技
 《Effective DevOps 中⽂版》譯者、GitLab Hero http://chengweichen.com https://devopstw.club Agenda • 什麼是 GitOps • 範例分享 • 如何開始實踐 如何開始實踐 GitOps • 結語 STORY Photo by Timothy Meinberg on Unsplash Commit Code OK! Dev Ops Deploy Code 炸 炸 炸 啊～我忘了說有⼀個新的 Config ~ Commit Code OK Again ! Dev Ops Code Deploy 炸 炸 炸 Again Again 炸 炸 炸 炸 炸 炸 炸 炸 炸 炸 炸 炸 Infra Infra 有⼀些調整，忘了 跟你說～ Photo by Fancycrave on Unsplash 什麼是 GitOps Provision Code Deploy Artifacts Production ⼀條龍 ⼯程師 Configuration Provision Code Deploy CI

Argo CD 搭配 Kustomize 實作 GitOps 部署 周育緯 1 About me •III DevOps contributor •8 年 System, DevOps 與 Backend 開發與 維護經驗 •資展國際、工研院: Kubernetes, DevOps 講師 2 GitOps •雲原生 Continuous Deployment •所有部署都使用聲明式(declarative)腳本 •所有部署都使用聲明式(declarative)腳本 •所有部署環境yaml皆存放至Git repository 3 GitOps •所有對環境的調整，皆應由調整Git repostiroy來進行觸發 •需確保環境與Git上的腳本為一致 4 GitOps優點 •可以經由git commit history來紀錄環境從 部署至今所有狀態 5 你有遇到過 •一個App deployment yaml檔該如何部署 overlay/development | kubectl apply -f - 20 部署出dev deployment and service env 21 Argo CD 22 •A declarative, GitOps continuous delivery tool for Kubernetes 用ArgoCD 搭配kustomize來部署環境ㄌ 23 歡迎大家參考 III DevOps 更多詳細教學影音，請觀看我們的

Kubernetes Day2 管理運營必須包 括幫助公司了解其成本、優化資源 利用率並最終降低總體成本的工具。 Click to edit Master title style 13 GitOps 痛苦x甜密 • 有能力記錄叢集環境上的一切變化 • 使用宣告式(Declarative)的文件格式 來描述或是設定環境上要用到的所有 資源 • 所有的環境變化都可支援審核機制， 要通過審核才會往下運作 Click to edit Master title style 14 GitOps 與資安合規守門員一拍即合 14 iThome SRE 2022 - 結合 IaC 與 PaC 提供企業上雲與應用部署（K8S）的資安偵測與修補 Click to edit Master title style 15 GitOps 的好朋友 – xxxOperator • Operator 的目標是將 operation

220446049250313e-16 julia> eps() # same as eps(Float64) 2.220446049250313e-16 These values are 2.0^-23 and 2.0^-52 as Float32 and Float64 values, respectively. The eps function can also take a floating-point 1.234567890123456789010000000000000000000000000000000000000000000000000000000004 julia> BigFloat(2.0^66) / 3 2.459565876494606882133333333333333333333333333333333333333333333333333333333344e+19 julia> 2(1 - 1im) 2 - 2im julia> (2 + 3im) - 1 1 + 3im julia> (1 + 2im) + 0.5 1.5 + 2.0im julia> (2 + 3im) - 0.5im 2.0 + 2.5im julia> 0.75(1 + 2im) 0.75 + 1.5im julia> (2 + 3im) / 2 1.0 + 1.5im julia>

eps(Float64) 2.220446049250313e-16CHAPTER 5. INTEGERS AND FLOATING-POINT NUMBERS 24 These values are 2.0^-23 and 2.0^-52 as Float32 and Float64 values, respectively. The eps function can also take a floating-point 1.234567890123456789010000000000000000000000000000000000000000000000000000000004 julia> BigFloat(2.0^66) / 3 2.459565876494606882133333333333333333333333333333333333333333333333333333333344e+19 julia> 2(1 - 1im) 2 - 2im julia> (2 + 3im) - 1 1 + 3im julia> (1 + 2im) + 0.5 1.5 + 2.0im julia> (2 + 3im) - 0.5im 2.0 + 2.5im julia> 0.75(1 + 2im) 0.75 + 1.5im julia> (2 + 3im) / 2 1.0 + 1.5im julia>

eps(Float64) 2.220446049250313e-16CHAPTER 5. INTEGERS AND FLOATING-POINT NUMBERS 24 These values are 2.0^-23 and 2.0^-52 as Float32 and Float64 values, respectively. The eps function can also take a floating-point 1.234567890123456789010000000000000000000000000000000000000000000000000000000004 julia> BigFloat(2.0^66) / 3 2.459565876494606882133333333333333333333333333333333333333333333333333333333344e+19 julia> 2(1 - 1im) 2 - 2im julia> (2 + 3im) - 1 1 + 3im julia> (1 + 2im) + 0.5 1.5 + 2.0im julia> (2 + 3im) - 0.5im 2.0 + 2.5im julia> 0.75(1 + 2im) 0.75 + 1.5im julia> (2 + 3im) / 2 1.0 + 1.5im julia>

220446049250313e-16 julia> eps() # same as eps(Float64) 2.220446049250313e-16 These values are 2.0^-23 and 2.0^-52 as Float32 and Float64 values, respectively. The eps function can also take a floating-point 1.234567890123456789010000000000000000000000000000000000000000000000000000000004 julia> BigFloat(2.0^66) / 3CHAPTER 4. INTEGERS AND FLOATING-POINT NUMBERS 23 2.45956587649460688213333333333333333333 2(1 - 1im) 2 - 2im julia> (2 + 3im) - 1 1 + 3im julia> (1 + 2im) + 0.5 1.5 + 2.0im julia> (2 + 3im) - 0.5im 2.0 + 2.5im julia> 0.75(1 + 2im) 0.75 + 1.5im julia> (2 + 3im) / 2 1.0 + 1.5im julia>

220446049250313e-16 julia> eps() # same as eps(Float64) 2.220446049250313e-16 These values are 2.0^-23 and 2.0^-52 as Float32 and Float64 values, respectively. The eps function can also take a floating-point 1.234567890123456789010000000000000000000000000000000000000000000000000000000004 julia> BigFloat(2.0^66) / 3 2.459565876494606882133333333333333333333333333333333333333333333333333333333344e+19 julia> 2(1 - 1im) 2 - 2im julia> (2 + 3im) - 1 1 + 3im julia> (1 + 2im) + 0.5 1.5 + 2.0im julia> (2 + 3im) - 0.5im 2.0 + 2.5im julia> 0.75(1 + 2im) 0.75 + 1.5im julia> (2 + 3im) / 2 1.0 + 1.5im julia>

eps(Float64) 2.220446049250313e-16CHAPTER 5. INTEGERS AND FLOATING-POINT NUMBERS 24 These values are 2.0^-23 and 2.0^-52 as Float32 and Float64 values, respectively. The eps function can also take a floating-point 1.234567890123456789010000000000000000000000000000000000000000000000000000000004 julia> BigFloat(2.0^66) / 3 2.459565876494606882133333333333333333333333333333333333333333333333333333333344e19 julia> 2(1 - 1im) 2 - 2im julia> (2 + 3im) - 1 1 + 3im julia> (1 + 2im) + 0.5 1.5 + 2.0im julia> (2 + 3im) - 0.5im 2.0 + 2.5im julia> 0.75(1 + 2im) 0.75 + 1.5im julia> (2 + 3im) / 2 1.0 + 1.5im julia>

eps(Float64) 2.220446049250313e-16CHAPTER 5. INTEGERS AND FLOATING-POINT NUMBERS 24 These values are 2.0^-23 and 2.0^-52 as Float32 and Float64 values, respectively. The eps function can also take a floating-point 1.234567890123456789010000000000000000000000000000000000000000000000000000000004 julia> BigFloat(2.0^66) / 3 2.459565876494606882133333333333333333333333333333333333333333333333333333333344e+19 julia> 2(1 - 1im) 2 - 2im julia> (2 + 3im) - 1 1 + 3im julia> (1 + 2im) + 0.5 1.5 + 2.0im julia> (2 + 3im) - 0.5im 2.0 + 2.5im julia> 0.75(1 + 2im) 0.75 + 1.5im julia> (2 + 3im) / 2 1.0 + 1.5im julia>