Kubernetes平台比較：Red Hat OpenShift、SUSE Rancher及 Canonical Kubernetes 如何為貴企業選擇合適的Kubernetes發行版本 2022年7月 執行摘要 採用容器優先方法的企業，將能享有無可比擬的機會，協助提升效率及資源使用 率、加強安全性、導入自動化及加速創新；因此Gartner預測將有75%的全球組 織，在2022年之前於正 本白皮書的目標是因應這項挑戰，提供撰寫本文時Kubernetes版圖的當下狀態， 並比較三種企業級的Kubernetes發行版本，分別是Canonical Kubernetes、 Red Hat OpenShift及SUSE Rancher，範圍涵蓋19項關鍵功能，並於報告最後 以表格提供總結分數。Canonical Kubernetes證明成為最具彈性、優勢及成本 效益的發行版本。 1. https://www 裝，可協助企業保證 產品的適應性、可預測性及互通性，此外也能避免受到廠商限制，並可提供彈性， 依據功能和需求的演進發展改用替代解決方案。 Canonical Kubernetes、Red Hat Openshift及SUSE Rancher都已獲得CNCF認證。 2. 生命週期作業 開始踏上Kubernetes的旅程時，如果沒有思考要如何長期維護叢集，很容易就會 在開發和部署期間遭遇困難。許

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

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For example, the variable name δ can be entered by typing \delta-tab, or even α̂⁽²⁾ by \alpha-tab-\hat- tab-\^(2)-tab. (If you find a symbol somewhere, e.g. in someone else's code, that you don't know the section on The Julia REPL. JULIA_ERROR_COLOR The formatting Base.error_color() (default: light red, "\033[91m") that errors should have at the termi- nal.CHAPTER 30. ENVIRONMENT VARIABLES 397 JULIA_WARN_COLOR @code_warntype is that non-concrete types are displayed in red; since this document is written in Markdown, which has no color, in this document, red text is denoted by uppercase. At the top, the inferred

For example, the variable name δ can be entered by typing \delta-tab, or even α̂⁽²⁾ by \alpha-tab-\hat- tab-\^(2)-tab. (If you find a symbol somewhere, e.g. in someone else's code, that you don't know the section on The Julia REPL. JULIA_ERROR_COLOR The formatting Base.error_color() (default: light red, "\033[91m") that errors should have at the termi- nal.CHAPTER 30. ENVIRONMENT VARIABLES 397 JULIA_WARN_COLOR @code_warntype is that non-concrete types are displayed in red; since this document is written in Markdown, which has no color, in this document, red text is denoted by uppercase. At the top, the inferred

For example, the variable name δ can be entered by typing \delta-tab, or even α̂⁽²⁾ by \alpha-tab-\hat- tab-\^(2)-tab. (If you find a symbol somewhere, e.g. in someone else's code, that you don't know the section on The Julia REPL. JULIA_ERROR_COLOR The formatting Base.error_color() (default: light red, "\033[91m") that errors should have at the termi- nal.CHAPTER 30. ENVIRONMENT VARIABLES 397 JULIA_WARN_COLOR @code_warntype is that non-concrete types are displayed in red; since this document is written in Markdown, which has no color, in this document, red text is denoted by uppercase. At the top, the inferred

For example, the variable name δ can be entered by typing \delta-tab, or even α̂⁽²⁾ by \alpha-tab-\hat- tab-\^(2)-tab. (If you find a symbol somewhere, e.g. in someone else's code, that you don't know the section on The Julia REPL. JULIA_ERROR_COLOR The formatting Base.error_color() (default: light red, "\033[91m") that errors should have at the termi- nal. JULIA_WARN_COLOR The formatting Base.warn_color() @code_warntype is that non-concrete types are displayed in red; since this document is written in Markdown, which has no color, in this document, red text is denoted by uppercase.CHAPTER 34. PERFORMANCE TIPS

For example, the variable name δ can be entered by typing \delta-tab, or even α̂⁽²⁾ by \alpha-tab-\hat- tab-\^(2)-tab. (If you find a symbol somewhere, e.g. in someone else's code, that you don't know the section on The Julia REPL. JULIA_ERROR_COLOR The formatting Base.error_color() (default: light red, "\033[91m") that errors should have at the termi- nal. JULIA_WARN_COLOR The formatting Base.warn_color() @code_warntype is that non-concrete types are displayed in red; since this document is written in Markdown, which has no color, in this document, red text is denoted by uppercase.CHAPTER 34. PERFORMANCE TIPS