5443eee47c
* nixos/postgresql: support 0750 for data directory This is rework of part of https://github.com/NixOS/nixpkgs/pull/46670. My usecase was to be able to inspect PG datadir as wheel user. PG11 now allows starting server with 0750 mask for data dir. `groupAccess = true` now does this automatically. The only thing you have to do is to set group ownership. For PG10 and below, I've described a hack how this can be done. Before this PR hack was impossible. The hack isn't ideal, because there is short period of time when dir mode is 0700, so I didn't want to make it official. Test/example is present too. * postgresql: allow changing initidb arguments via module system Closes https://github.com/NixOS/nixpkgs/issues/18829 + some cleanups * addressed review comments and some fixes * whoops * change groupAccess to tristate, to not force `chmod` on dataDir. Making mask either 0700 or 0750 is too restrictive.. * WIP * let's not support group mode for versions pre-11. The only fix is to change mode to 0700 before start, because otherwise postgresql doesn't start, and error is non-obvious. |
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