88 lines
2.5 KiB
Nix
88 lines
2.5 KiB
Nix
{ cluster, config, depot, lib, ... }:
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let
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inherit (cluster.config) vars;
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inherit (cluster.config.services.patroni) secrets;
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inherit (config.networking) hostName;
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getMeshIp = name: vars.mesh.${name}.meshIp;
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net = vars.meshNet.cidr;
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pg = depot.packages.postgresql;
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baseDir = "/srv/storage/database/postgres-ha";
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walDir = "/var/lib/postgres-ha/${pg.psqlSchema}/wal";
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in
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{
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imports = [
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depot.nixosModules.patroni
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];
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systemd.tmpfiles.rules = [
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"d '${baseDir}' 0700 patroni patroni - -"
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"d '${walDir}' 0700 patroni patroni - -"
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];
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systemd.services.patroni = {
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requires = [ "consul-ready.service" ];
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after = [ "consul-ready.service" ];
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};
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services.patroni = {
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enable = true;
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name = hostName;
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postgresqlPackage = pg;
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postgresqlDataDir ="${baseDir}/${pg.psqlSchema}";
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postgresqlPort = cluster.config.links.patroni-pg-internal.port;
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restApiPort = cluster.config.links.patroni-api.port;
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scope = "poseidon";
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namespace = "/patroni";
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nodeIp = getMeshIp hostName;
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otherNodesIps = map getMeshIp (cluster.config.services.patroni.otherNodes.worker hostName);
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raft = false;
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softwareWatchdog = true;
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settings = {
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consul = {
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host = config.links.consulAgent.tuple;
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register_service = true;
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};
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bootstrap.dcs = {
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ttl = 30;
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loop_wait = 10;
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retry_timeout = 10;
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maximum_lag_on_failover = 1024 * 1024;
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};
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failsafe_mode = true;
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postgresql = {
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basebackup = {
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waldir = walDir;
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};
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use_pg_rewind = true;
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use_slots = true;
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synchronous_mode = true;
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authentication = {
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replication.username = "patronirep";
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rewind.username = "patronirew";
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superuser.username = "postgres";
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};
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parameters = {
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listen_addresses = getMeshIp hostName;
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wal_level = "replica";
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hot_standby_feedback = "on";
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unix_socket_directories = "/tmp";
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synchronous_commit = "on";
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};
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pg_hba = [
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"host replication patronirep ${net} scram-sha-256"
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"host all patronirew ${net} scram-sha-256"
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"host all postgres ${net} scram-sha-256"
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"host all all ${net} scram-sha-256"
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"host all all 127.0.0.1/32 scram-sha-256"
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];
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};
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};
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environmentFiles = lib.mapAttrs (_: secret: secret.path) (lib.filterAttrs (name: _: lib.hasPrefix "PATRONI_" name) secrets);
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};
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}
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