infra/services/monitoring/exporters/postgres.nix
raito bee402fecc fix: ensure that pg_stat_statements is always created as an ext
Otherwise, we will have issues with this exporter.

Signed-off-by: Raito Bezarius <masterancpp@gmail.com>
2024-10-21 14:33:18 +02:00

33 lines
939 B
Nix

{
config,
lib,
...
}:
let
cfg = config.bagel.monitoring.exporters.postgres;
inherit (lib) mkEnableOption mkIf;
in
{
options.bagel.monitoring.exporters.postgres.enable = (mkEnableOption "Postgres exporter") // { default = config.services.postgresql.enable; };
config = mkIf cfg.enable {
services.prometheus.exporters.postgres = {
enable = true;
port = 9104;
runAsLocalSuperUser = true;
extraFlags = [
"--collector.long_running_transactions"
"--collector.stat_activity_autovacuum"
"--collector.stat_statements"
];
};
services.postgresql.settings.shared_preload_libraries = "pg_stat_statements";
systemd.services.postgresql.postStart = lib.mkAfter ''
${config.services.postgresql.package}/bin/psql -U postgres -c "CREATE EXTENSION IF NOT EXISTS pg_stat_statements;";
'';
bagel.monitoring.grafana-agent.exporters.postgres.port = 9104;
};
}