98 lines
2.4 KiB
Nix
98 lines
2.4 KiB
Nix
{ config, pkgs, ... }:
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let
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sslCert = config.security.acme.certs."postgres.pvv.ntnu.no";
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in
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{
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services.postgresql = {
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enable = true;
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package = pkgs.postgresql_15;
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enableTCPIP = true;
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dataDir = "/data/postgresql";
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authentication = ''
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host all all 129.241.210.128/25 md5
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host all all 2001:700:300:1900::/64 md5
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'';
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# Hilsen https://pgconfigurator.cybertec-postgresql.com/
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settings = {
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# Connectivity
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max_connections = 500;
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superuser_reserved_connections = 3;
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# Memory Settings
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shared_buffers = "8192 MB";
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work_mem = "32 MB";
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maintenance_work_mem = "420 MB";
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effective_cache_size = "22 GB";
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effective_io_concurrency = 100;
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random_page_cost = 1.25;
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# Monitoring
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shared_preload_libraries = "pg_stat_statements";
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track_io_timing = true;
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track_functions = "pl";
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# Replication
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wal_level = "replica";
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max_wal_senders = 0;
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synchronous_commit = false;
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# Checkpointing:
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checkpoint_timeout = "15 min";
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checkpoint_completion_target = 0.9;
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max_wal_size = "1024 MB";
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min_wal_size = "512 MB";
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# WAL writing
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wal_compression = true;
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wal_buffers = -1;
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# Background writer
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bgwriter_delay = "200ms";
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bgwriter_lru_maxpages = 100;
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bgwriter_lru_multiplier = 2.0;
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bgwriter_flush_after = 0;
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# Parallel queries:
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max_worker_processes = 8;
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max_parallel_workers_per_gather = 4;
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max_parallel_maintenance_workers = 4;
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max_parallel_workers = 8;
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parallel_leader_participation = true;
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# Advanced features
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enable_partitionwise_join = true;
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enable_partitionwise_aggregate = true;
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max_slot_wal_keep_size = "1000 MB";
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track_wal_io_timing = true;
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maintenance_io_concurrency = 100;
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wal_recycle = true;
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# SSL
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ssl = true;
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ssl_cert_file = "/run/credentials/postgresql.service/cert";
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ssl_key_file = "/run/credentials/postgresql.service/key";
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};
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};
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systemd.services.postgresql.serviceConfig = {
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LoadCredential = [
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"cert:${sslCert.directory}/cert.pem"
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"key:${sslCert.directory}/key.pem"
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];
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};
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users.groups.acme.members = [ "postgres" ];
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networking.firewall.allowedTCPPorts = [ 5432 ];
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networking.firewall.allowedUDPPorts = [ 5432 ];
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services.postgresqlBackup = {
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enable = true;
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location = "/var/lib/postgres/backups";
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backupAll = true;
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};
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}
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