119 lines
3.1 KiB
Nix
119 lines
3.1 KiB
Nix
{ config, lib, pkgs, ... }:
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with lib;
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let
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cfg = config.services.solr;
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in
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{
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options = {
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services.solr = {
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enable = mkEnableOption "Solr";
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# default to the 8.x series not forcing major version upgrade of those on the 7.x series
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package = mkOption {
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type = types.package;
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default = if versionAtLeast config.system.stateVersion "19.09"
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then pkgs.solr_8
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else pkgs.solr_7
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;
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defaultText = "pkgs.solr";
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description = ''
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Which Solr package to use. This defaults to version 7.x if
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<literal>system.stateVersion < 19.09</literal> and version 8.x
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otherwise.
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'';
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};
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port = mkOption {
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type = types.int;
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default = 8983;
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description = "Port on which Solr is ran.";
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};
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stateDir = mkOption {
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type = types.path;
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default = "/var/lib/solr";
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description = "The solr home directory containing config, data, and logging files.";
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};
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extraJavaOptions = mkOption {
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type = types.listOf types.str;
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default = [];
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description = "Extra command line options given to the java process running Solr.";
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};
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user = mkOption {
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type = types.str;
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default = "solr";
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description = "User under which Solr is ran.";
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};
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group = mkOption {
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type = types.str;
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default = "solr";
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description = "Group under which Solr is ran.";
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};
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};
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};
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config = mkIf cfg.enable {
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environment.systemPackages = [ cfg.package ];
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systemd.services.solr = {
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after = [ "network.target" "remote-fs.target" "nss-lookup.target" "systemd-journald-dev-log.socket" ];
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wantedBy = [ "multi-user.target" ];
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environment = {
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SOLR_HOME = "${cfg.stateDir}/data";
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LOG4J_PROPS = "${cfg.stateDir}/log4j2.xml";
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SOLR_LOGS_DIR = "${cfg.stateDir}/logs";
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SOLR_PORT = "${toString cfg.port}";
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};
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path = with pkgs; [
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gawk
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procps
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];
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preStart = ''
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mkdir -p "${cfg.stateDir}/data";
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mkdir -p "${cfg.stateDir}/logs";
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if ! test -e "${cfg.stateDir}/data/solr.xml"; then
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install -D -m0640 ${cfg.package}/server/solr/solr.xml "${cfg.stateDir}/data/solr.xml"
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install -D -m0640 ${cfg.package}/server/solr/zoo.cfg "${cfg.stateDir}/data/zoo.cfg"
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fi
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if ! test -e "${cfg.stateDir}/log4j2.xml"; then
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install -D -m0640 ${cfg.package}/server/resources/log4j2.xml "${cfg.stateDir}/log4j2.xml"
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fi
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'';
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serviceConfig = {
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User = cfg.user;
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Group = cfg.group;
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ExecStart="${cfg.package}/bin/solr start -f -a \"${concatStringsSep " " cfg.extraJavaOptions}\"";
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ExecStop="${cfg.package}/bin/solr stop";
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};
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};
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users.users = optionalAttrs (cfg.user == "solr") (singleton
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{ name = "solr";
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group = cfg.group;
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home = cfg.stateDir;
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createHome = true;
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uid = config.ids.uids.solr;
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});
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users.groups = optionalAttrs (cfg.group == "solr") (singleton
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{ name = "solr";
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gid = config.ids.gids.solr;
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});
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};
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}
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