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This commit is contained in:
Leyla Becker 2025-01-02 16:21:44 -06:00
parent fe1f2adf9f
commit 9ecba48dcf
2 changed files with 97 additions and 41 deletions
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102
modules/nixos-modules/server/postgres.nix
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@ -3,7 +3,9 @@
lib,
pkgs,
...
}: {
}: let
dataDir = "/var/lib/postgresql/15";
in {
options = {
host.postgres = {
enable = lib.mkEnableOption "enable postgres";
@ -40,47 +42,65 @@
};
};
config = lib.mkIf config.host.postgres.enable {
services = {
postgresql = {
enable = true;
ensureUsers =
[
{
name = "postgres";
}
]
+ (lib.attrsets.mapAttrsToList (user: {
name = user.name;
ensureDBOwnership = true;
})
config.host.postgres.extraDatabaseUsers);
ensureDatabases = lib.attrsets.mapAttrsToList (user: user.name) config.host.postgres.extraDatabaseUsers;
identMap =
''
# ArbitraryMapName systemUser DBUser
config = lib.mkIf config.host.postgres.enable (lib.mkMerge [
{
services = {
postgresql = {
enable = true;
ensureUsers =
[
{
name = "postgres";
}
]
+ (lib.attrsets.mapAttrsToList (user: {
name = user.name;
ensureDBOwnership = true;
})
config.host.postgres.extraDatabaseUsers);
ensureDatabases = lib.attrsets.mapAttrsToList (user: user.name) config.host.postgres.extraDatabaseUsers;
identMap =
''
# ArbitraryMapName systemUser DBUser
# Administration Users
superuser_map root postgres
superuser_map postgres postgres
''
+ (
lib.strings.concatLines (lib.attrsets.mapAttrsToList (user: "superuser_map ${user.name} postgres") config.host.postgres.extraAdminUsers)
)
+ ''
# Administration Users
superuser_map root postgres
superuser_map postgres postgres
''
+ (
lib.strings.concatLines (lib.attrsets.mapAttrsToList (user: "superuser_map ${user.name} postgres") config.host.postgres.extraAdminUsers)
)
+ ''
# Client Users
''
+ (
lib.strings.concatLines (lib.attrsets.mapAttrsToList (user: "superuser_map ${user.name} ${user.name}") config.host.postgres.extraDatabaseUsers)
);
# configuration here lets users access the db that matches their name and lets user postgres access everything
authentication = pkgs.lib.mkOverride 10 ''
# type database DBuser origin-address auth-method optional_ident_map
local all postgres peer map=superuser_map
local sameuser all peer map=superuser_map
'';
# Client Users
''
+ (
lib.strings.concatLines (lib.attrsets.mapAttrsToList (user: "superuser_map ${user.name} ${user.name}") config.host.postgres.extraDatabaseUsers)
);
# configuration here lets users access the db that matches their name and lets user postgres access everything
authentication = pkgs.lib.mkOverride 10 ''
# type database DBuser origin-address auth-method optional_ident_map
local all postgres peer map=superuser_map
local sameuser all peer map=superuser_map
'';
};
};
};
};
}
(lib.mkIf config.host.impermanence.enable {
assertions = [
{
assertion = config.services.postgresql.dataDir == dataDir;
description = "postgres data directory does not match persistence";
}
];
environment.persistence."/persist/system/root" = {
enable = true;
hideMounts = true;
directories = [
dataDir
];
};
})
]);
}