Homebrew’s Great Migration: moving to GitHub Packages with zero downtime

In this talk, I discuss how we decided between available options, how compromises were between Homebrew and GitHub, how we migrated by the hard deadline and how to use “soft power” to affect change in your organisation.

Transcript

1. Homebrew’s move to GitHub Packages with zero downtime Mike McQuaid The Great Migration
2. The Background 📦
6. Mike McQuaid https://github.com/MikeMcQuaid https://mastodon.social/@mikemcquaid https://twitter.com/MikeMcQuaid
7. https://ben.balter.com/2015/11/12/why-urls/
8. https://github.com/Homebrew/brew/commit/29d85578e
9. https://github.com/Homebrew/brew/commit/29d85578e
10. https://twitter.com/mxcl/status/608682016205344768
11. https://github.com/Homebrew/brew
12. https://github.com/Homebrew/homebrew-core
13. https://github.com/Homebrew/homebrew-core/commit/ea309d16
14. https://docs.brew.sh/Bottles
15. https://docs.brew.sh/Bottles
16. The Crisis ☠
17. https://jfrog.com/blog/into-the-sunset-bintray-jcenter-gocenter-and-chartcenter/
18. https://jfrog.com/blog/into-the-sunset-bintray-jcenter-gocenter-and-chartcenter/ 💩
19. https://jfrog.com/blog/into-the-sunset-bintray-jcenter-gocenter-and-chartcenter/
20. https://www.amazon.co.uk/Its-Not-Fair-Anita-Harper/dp/1853408972
22. https://github.com/orgs/Homebrew/discussions/691
23. The Investigation 🧐
27. https://github.com/opencontainers/image-spec
28. https://dlorenc.medium.com/oci-artifacts-explained-8f4a77945c13
32. The Implementation 🧑💻
33. https://github.com/Homebrew/brew/pull/10677
37. https://github.com/Homebrew/brew/pull/10835
38. https://github.com/Homebrew/brew/pull/10835
39. https://github.com/oras-project/oras
40. https://github.com/containers/skopeo
41. https://github.com/oras-project/oras/pull/241
42. https://github.com/Homebrew/brew/pull/11070
43. https://github.com/orgs/Homebrew/discussions/691
45. The Result 🏁
46. https://github.com/homebrew/homebrew-core/packages
47. https://github.com/Homebrew/homebrew-core/pkgs/container/core%2Fopenssl%2F1.1
48. https://github.com/Homebrew/homebrew-core/pkgs/container/core%2Fopenssl%2F1.1
50. https://github.com/Homebrew/homebrew-core/pkgs/container/core%2Fopenssl%2F1.1/97480112
51. https://reproducible-builds.org
52. https://github.com/Homebrew/brew/pull/11077
53. https://github.com/Homebrew/brew/pull/11366
54. https://github.com/Homebrew/brew/pull/12459
55. https://github.com/Homebrew/brew/pull/12459/files
58. https://github.blog/2021-06-21-github-packages-container-registry-generally-available
59. The Aftermath 📈
60. https://github.com/orgs/Homebrew/discussions/1906
61. https://github.com/orgs/Homebrew/discussions/1906
62. https://github.com/orgs/Homebrew/discussions/1906
64. Thanks! 💜 mike@brew.sh