33 lines
783 B
Nix
33 lines
783 B
Nix
{
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pkgs,
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config,
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service_configs,
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lib,
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...
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}:
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{
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imports = [
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(lib.serviceMountWithZpool "postgresql" service_configs.zpool_ssds [
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config.services.postgresql.dataDir
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])
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(lib.serviceFilePerms "postgresql" [
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"Z ${config.services.postgresql.dataDir} 0700 postgres postgres"
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])
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];
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services.postgresql = {
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enable = true;
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package = pkgs.postgresql_16;
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dataDir = service_configs.postgres.dataDir;
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settings = {
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# ZFS provides checksumming and atomic writes, making PostgreSQL's
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# full_page_writes redundant. Disabling reduces write amplification
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# and SSD wear on the zpool.
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# Did this in conjunction with setting recordsize=8k
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# on the zvolume this is on
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full_page_writes = false;
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};
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};
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}
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