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Bloxx12 2025-07-13 22:51:22 +02:00
commit b1490ec9a8
Signed by: faukah
SSH key fingerprint: SHA256:Uj2AXqvtdCA4hn5Hq0ZonhIAyUqI1q4w2sMG3Z1TH7E
100 changed files with 187 additions and 1695 deletions
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124
modules/services/postgresql/module.nix
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@ -1,124 +0,0 @@
{
config,
lib,
pkgs,
...
}: let
inherit (lib.modules) mkIf;
inherit (lib.options) mkEnableOption;
cfg = config.modules.system.services.database.postgresql;
in {
options.modules.system.services.database.postgresql.enable = mkEnableOption "postgresql";
config = mkIf cfg.enable {
services.postgresql = {
enable = true;
package = pkgs.postgresql_17;
# NOTE: it is imperative to create this manually when starting postgresql.
dataDir = "/srv/data/postgresql/${config.services.postgresql.package.psqlSchema}";
# Whether PostgreSQL should listen on all network interfaces.
# If disabled, the database can only be accessed via its Unix domain socket or via TCP connections to localhost.
enableTCPIP = false;
# Check the syntax of the configuration file at compile time
checkConfig = true;
ensureDatabases = [
"git"
"grafana"
"stalwart"
"plausible"
];
ensureUsers = [
{
name = "postgres";
ensureClauses = {
superuser = true;
login = true;
createrole = true;
createdb = true;
replication = true;
};
}
{
name = "git";
ensureDBOwnership = true;
}
{
name = "grafana";
ensureDBOwnership = true;
}
{
name = "stalwart";
ensureDBOwnership = true;
}
{
name = "plausible";
ensureDBOwnership = true;
}
];
settings = {
# taken from https://pgconfigurator.cybertec.at/
# Connectivity
max_connections = 100;
superuser_reserved_connections = 3;
# Memory Settings
shared_buffers = "2048 MB";
work_mem = "32 MB";
maintenance_work_mem = "320 MB";
huge_pages = "off";
effective_cache_size = "6 GB";
effective_io_concurrency = 100; # concurrent IO only really activated if OS supports posix_fadvise function
random_page_cost = 1.25; # speed of random disk access relative to sequential access (1.0)
# Monitoring
shared_preload_libraries = "pg_stat_statements"; # per statement resource usage stats;
track_io_timing = "on"; # measure exact block IO times;
track_functions = "pl"; # track execution times of pl-language procedures if any;
# Replication
wal_level = "replica"; # consider using at least 'replica';
max_wal_senders = 0;
synchronous_commit = "on";
# Checkpointing: ;
checkpoint_timeout = "15 min";
checkpoint_completion_target = 0.9;
max_wal_size = "1024 MB";
min_wal_size = "512 MB";
# WAL writing
wal_compression = "on";
wal_buffers = -1; # auto-tuned by Postgres till maximum of segment size (16MB by default);
wal_writer_delay = "200ms";
wal_writer_flush_after = "1MB";
# Background writer;
bgwriter_delay = "200ms";
bgwriter_lru_maxpages = 100;
bgwriter_lru_multiplier = 2.0;
bgwriter_flush_after = 0;
# Parallel queries: ;
max_worker_processes = 6;
max_parallel_workers_per_gather = 3;
max_parallel_maintenance_workers = 3;
max_parallel_workers = 6;
parallel_leader_participation = "on";
# Advanced features ;
enable_partitionwise_join = "on";
enable_partitionwise_aggregate = "on";
jit = "on";
max_slot_wal_keep_size = "1000 MB";
track_wal_io_timing = "on";
maintenance_io_concurrency = 100;
wal_recycle = "on";
};
};
};
}