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postgresql_12: remove

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This will be EOL at the end of November, so there's little reason to
keep it in 24.11[1]. As discussed, we'd like to keep it for as long as
possible to make sure there's a state in nixpkgs that has the latest
minor of postgresql_12 available with the most recent CVEs fixed for
people who cannot upgrade[2].

This aspect has been made explicit in the manual now for the next .11
release.

During the discussions it has been brought up that if people just do
`services.postgresql.enable = true;` and let the code decide the
postgresql version based on `system.stateVersion`, there's a chance that
such EOL dates will be missed. To make this harder, a warning will now
be raised when using the stateVersion-condition and the oldest still
available major is selected.

Additionally regrouped the postgresql things in the release notes to
make sure these are all shown consecutively. Otherwise it's a little
hard to keep track of all the changes made to postgresql in 24.11.

[1] https://endoflife.date/postgresql
[2] https://github.com/NixOS/nixpkgs/pull/353158#issuecomment-2453056692
This commit is contained in:
Maximilian Bosch 2024-11-02 16:52:02 +01:00
parent 4a8b1cc958
commit 0b3eef7441
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11 changed files with 32 additions and 80 deletions
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9
nixos/modules/services/databases/postgresql.md
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@ -261,8 +261,9 @@ Technically, we'd not want to have EOL'ed packages in a stable NixOS release, wh
Thus:
- In September/October the new major version will be released and added to nixos-unstable.
- In November the last minor version for the oldest major will be released.
- Both the current stable .05 release and nixos-unstable should be updated to the latest minor.
- In November, before branch-off for the .11 release, the EOL-ed major will be removed from nixos-unstable.
- Both the current stable .05 release and nixos-unstable should be updated to the latest minor that will usually be released in November.
- This is relevant for people who need to use this major for as long as possible. In that case its desirable to be able to pin nixpkgs to a commit that still has it, at the latest minor available.
- In November, before branch-off for the .11 release and after the update to the latest minor, the EOL-ed major will be removed from nixos-unstable.
This leaves a small gap of a couple of weeks after the latest minor release and the end of our support window for the .05 release, in which there could be an emergency release to other major versions of PostgreSQL - but not the oldest major we have in that branch. In that case: If we can't trivially patch the issue, we will mark the package/version as insecure **immediately**.
@ -292,7 +293,7 @@ postgresql_15.pkgs.pg_partman postgresql_15.pkgs.pgroonga
To add plugins via NixOS configuration, set `services.postgresql.extraPlugins`:
```nix
{
services.postgresql.package = pkgs.postgresql_12;
services.postgresql.package = pkgs.postgresql_17;
services.postgresql.extraPlugins = ps: with ps; [
pg_repack
postgis
@ -303,7 +304,7 @@ To add plugins via NixOS configuration, set `services.postgresql.extraPlugins`:
You can build custom PostgreSQL-with-plugins (to be used outside of NixOS) using function `.withPackages`. For example, creating a custom PostgreSQL package in an overlay can look like:
```nix
self: super: {
postgresql_custom = self.postgresql_12.withPackages (ps: [
postgresql_custom = self.postgresql_17.withPackages (ps: [
ps.pg_repack
ps.postgis
]);