Leverage your CI/CD at the next level with Github actions

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Github Leverage your CI/CD at the next level with Github actions Sylvain Pontoreau Felix Billon Aachen – 15/11/2022

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Your speakers for this session ! Sylvain Pontoreau @spontoreau Felix Billon @felix_billon

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History • October 2007 : development starting • April 2008 : oﬃcial launch • July 2010 : 1 million of repositories • September 2011 : over a 1 million of users • April 2016 : 14 million of users and 35 million of repositories • June 2018 : purchase by Microsoft

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Github oﬀers all classic basic features to manage repositories : • Source code management • Ticket management • CI/CD • Project management • Wiki • Platform extension through marketplace • ... Basic features

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Branch system

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• A good branch system that allows you to : • Help developers to work on the same base code by minimize conﬂicts • Understand where stable code is, where code needed to be testing is, … • Have a clean history • Deploy faster, rollback faster • … Branch system

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👍 • 🔒 Protect production code • 🔖 Allow to maintain diﬀerent version • 🌟 Most popular Branch system : Gitﬂow 👎 • 🐢 Slower deployment (❌ for CD) • 👿 Merge hell • 🔀 Many branches • 🧟 Deprecated

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👎 • 🤝 Need good collaboration • ⚔ Take care of conﬂicts Branch system : Trunk based 👍 • 🚀 Fast deployment (✔ for CD) • 1⃣ A branch to rule them all

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👎 • ⚠ Risky without quality assurance Branch system : Github ﬂow 👍 • 🚀 Push on main ➡ prod (✔ fast CD) • 󰔨 Few branches • 󰳘 Force high quality code • 🚚 Ship feature everyday (Kanban friendly)

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👎 • 🗂 Need good team organization Branch system : Release ﬂow 👍 • 🚀 Fast deployment (✔ for CD) • 📦 Release focused • 😎 Simple to learn and setup • 🔁 Great for iteration (SCRUM friendly) • 🔖 Allow to maintain diﬀerent version

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• Many others : Gitlab ﬂow, Oneﬂow, … • To choose between them wisely : • Understand the size and the needs of your project • Check the maturity of the developer team Branch system

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Repository conﬁguration

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Repository Conﬁguration • Implement branch system : • Protect branches and tags • Set conditions for merge request • … • Secure your repository : • Force MFA • Only accept signed commit • Valide commit author • Activate dependabot • …

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CI / CD

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• Automation task • Allow to setup CI/CD • Pipeline as code (YAML) Workﬂow