148 lines
4.2 KiB
Nix
148 lines
4.2 KiB
Nix
{ config, pkgs, lib, ... }:
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with lib;
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let
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cfg = config.services.dgraph;
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settingsFormat = pkgs.formats.json {};
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configFile = settingsFormat.generate "config.json" cfg.settings;
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dgraphWithNode = pkgs.runCommand "dgraph" {
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nativeBuildInputs = [ pkgs.makeWrapper ];
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}
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''
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mkdir -p $out/bin
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makeWrapper ${cfg.package}/bin/dgraph $out/bin/dgraph \
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--set PATH '${lib.makeBinPath [ pkgs.nodejs ]}:$PATH' \
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'';
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securityOptions = {
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NoNewPrivileges = true;
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AmbientCapabilities = "";
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CapabilityBoundingSet = "";
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DeviceAllow = "";
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LockPersonality = true;
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PrivateTmp = true;
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PrivateDevices = true;
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PrivateUsers = true;
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ProtectClock = true;
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ProtectControlGroups = true;
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ProtectHostname = true;
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ProtectKernelLogs = true;
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ProtectKernelModules = true;
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ProtectKernelTunables = true;
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RemoveIPC = true;
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RestrictNamespaces = true;
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RestrictAddressFamilies = [ "AF_INET" "AF_INET6" "AF_UNIX" ];
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RestrictRealtime = true;
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RestrictSUIDSGID = true;
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SystemCallArchitectures = "native";
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SystemCallErrorNumber = "EPERM";
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SystemCallFilter = [
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"@system-service"
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"~@cpu-emulation" "~@debug" "~@keyring" "~@memlock" "~@obsolete" "~@privileged" "~@setuid"
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];
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};
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in
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{
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options = {
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services.dgraph = {
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enable = mkEnableOption (lib.mdDoc "Dgraph native GraphQL database with a graph backend");
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package = lib.mkPackageOption pkgs "dgraph" { };
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settings = mkOption {
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type = settingsFormat.type;
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default = {};
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description = lib.mdDoc ''
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Contents of the dgraph config. For more details see https://dgraph.io/docs/deploy/config
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'';
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};
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alpha = {
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host = mkOption {
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type = types.str;
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default = "localhost";
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description = lib.mdDoc ''
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The host which dgraph alpha will be run on.
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'';
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};
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port = mkOption {
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type = types.port;
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default = 7080;
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description = lib.mdDoc ''
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The port which to run dgraph alpha on.
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'';
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};
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};
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zero = {
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host = mkOption {
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type = types.str;
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default = "localhost";
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description = lib.mdDoc ''
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The host which dgraph zero will be run on.
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'';
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};
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port = mkOption {
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type = types.port;
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default = 5080;
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description = lib.mdDoc ''
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The port which to run dgraph zero on.
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'';
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};
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};
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};
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};
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config = mkIf cfg.enable {
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services.dgraph.settings = {
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badger.compression = mkDefault "zstd:3";
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};
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systemd.services.dgraph-zero = {
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description = "Dgraph native GraphQL database with a graph backend. Zero controls node clustering";
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after = [ "network.target" ];
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wantedBy = [ "multi-user.target" ];
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serviceConfig = {
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StateDirectory = "dgraph-zero";
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WorkingDirectory = "/var/lib/dgraph-zero";
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DynamicUser = true;
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ExecStart = "${cfg.package}/bin/dgraph zero --my ${cfg.zero.host}:${toString cfg.zero.port}";
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Restart = "on-failure";
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} // securityOptions;
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};
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systemd.services.dgraph-alpha = {
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description = "Dgraph native GraphQL database with a graph backend. Alpha serves data";
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after = [ "network.target" "dgraph-zero.service" ];
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requires = [ "dgraph-zero.service" ];
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wantedBy = [ "multi-user.target" ];
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serviceConfig = {
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StateDirectory = "dgraph-alpha";
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WorkingDirectory = "/var/lib/dgraph-alpha";
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DynamicUser = true;
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ExecStart = "${dgraphWithNode}/bin/dgraph alpha --config ${configFile} --my ${cfg.alpha.host}:${toString cfg.alpha.port} --zero ${cfg.zero.host}:${toString cfg.zero.port}";
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ExecStop = ''
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${pkgs.curl}/bin/curl --data "mutation { shutdown { response { message code } } }" \
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--header 'Content-Type: application/graphql' \
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-X POST \
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http://localhost:8080/admin
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'';
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Restart = "on-failure";
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} // securityOptions;
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};
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};
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meta.maintainers = with lib.maintainers; [ happysalada ];
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}
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