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author | Maximilian Bosch <maximilian@mbosch.me> | 2020-03-27 22:09:13 +0100 |
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committer | Maximilian Bosch <maximilian@mbosch.me> | 2020-03-28 23:33:25 +0100 |
commit | bd5324c4fcb990715c64fc40c19341947e04bf17 (patch) | |
tree | 683924c8027bdbe86b7634fa85a58aafd92f1a0c /pkgs/development/bower-modules/generic | |
parent | ea5c800175f3bec015ff04a68649bc1aa422c2e8 (diff) | |
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hydra: 2020-02-06 -> 2020-03-{24,27}
Upgrades Hydra to the latest master/flake branch. To perform this upgrade, it's needed to do a non-trivial db-migration which provides a massive performance-improvement[1]. The basic ideas behind multi-step upgrades of services between NixOS versions have been gathered already[2]. For further context it's recommended to read this first. Basically, the following steps are needed: * Upgrade to a non-breaking version of Hydra with the db-changes (columns are still nullable here). If `system.stateVersion` is set to something older than 20.03, the package will be selected automatically, otherwise `pkgs.hydra-migration` needs to be used. * Run `hydra-backfill-ids` on the server. * Deploy either `pkgs.hydra-unstable` (for Hydra master) or `pkgs.hydra-flakes` (for flakes-support) to activate the optimization. The steps are also documented in the release-notes and in the module using `warnings`. `pkgs.hydra` has been removed as latest Hydra doesn't compile with `pkgs.nixStable` and to ensure a graceful migration using the newly introduced packages. To verify the approach, a simple vm-test has been added which verifies the migration steps. [1] https://github.com/NixOS/hydra/pull/711 [2] https://github.com/NixOS/nixpkgs/pull/82353#issuecomment-598269471
Diffstat (limited to 'pkgs/development/bower-modules/generic')
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