{ lib, pkgs, config, myconfig, mylibs, ... }: let cfg = config.services.myDatabases; in { options.services.myDatabases = { postgresql = { enable = lib.mkOption { default = cfg.enable; example = true; description = "Whether to enable postgresql database"; type = lib.types.bool; }; }; }; config = lib.mkIf cfg.enable { nixpkgs.overlays = [ (self: super: rec { postgresql = self.postgresql_11_custom; }) ]; networking.firewall.allowedTCPPorts = [ 5432 ]; security.acme.certs."postgresql" = config.services.myCertificates.certConfig // { user = "postgres"; group = "postgres"; plugins = [ "fullchain.pem" "key.pem" "account_key.json" ]; domain = "db-1.immae.eu"; postRun = '' systemctl reload postgresql.service ''; }; system.activationScripts.postgresql = '' install -m 0755 -o postgres -g postgres -d ${myconfig.env.databases.postgresql.socket} ''; systemd.services.postgresql.serviceConfig.SupplementaryGroups = "keys"; services.postgresql = rec { enable = cfg.postgresql.enable; package = pkgs.postgresql; enableTCPIP = true; extraConfig = '' max_connections = 100 wal_level = logical shared_buffers = 512MB work_mem = 10MB max_wal_size = 1GB min_wal_size = 80MB log_timezone = 'Europe/Paris' datestyle = 'iso, mdy' timezone = 'Europe/Paris' lc_messages = 'en_US.UTF-8' lc_monetary = 'en_US.UTF-8' lc_numeric = 'en_US.UTF-8' lc_time = 'en_US.UTF-8' default_text_search_config = 'pg_catalog.english' ssl = on ssl_cert_file = '/var/lib/acme/postgresql/fullchain.pem' ssl_key_file = '/var/lib/acme/postgresql/key.pem' ''; authentication = '' local all postgres ident local all all md5 hostssl all all 188.165.209.148/32 md5 hostssl all all 178.33.252.96/32 md5 hostssl all all all pam hostssl replication backup-1 2001:41d0:302:1100::9:e5a9/128 pam pamservice=postgresql_replication hostssl replication backup-1 54.37.151.137/32 pam pamservice=postgresql_replication ''; }; mySecrets.keys = [ { dest = "postgresql/pam"; permissions = "0400"; group = "postgres"; user = "postgres"; text = with myconfig.env.databases.postgresql.pam; '' host ${myconfig.env.ldap.host} base ${myconfig.env.ldap.base} binddn ${dn} bindpw ${password} pam_filter ${filter} ssl start_tls ''; } { dest = "postgresql/pam_replication"; permissions = "0400"; group = "postgres"; user = "postgres"; text = '' host ${myconfig.env.ldap.host} base ${myconfig.env.ldap.base} binddn ${myconfig.env.ldap.host_dn} bindpw ${myconfig.env.ldap.password} pam_login_attribute cn ssl start_tls ''; } ]; security.pam.services = let pam_ldap = "${pkgs.pam_ldap}/lib/security/pam_ldap.so"; in [ { name = "postgresql"; text = '' auth required ${pam_ldap} config=/var/secrets/postgresql/pam account required ${pam_ldap} config=/var/secrets/postgresql/pam ''; } { name = "postgresql_replication"; text = '' auth required ${pam_ldap} config=/var/secrets/postgresql/pam_replication account required ${pam_ldap} config=/var/secrets/postgresql/pam_replication ''; } ]; }; }