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127 lines
3.3 KiB
Nix
127 lines
3.3 KiB
Nix
# Zabbix server daemon.
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{ config, lib, pkgs, ... }:
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with lib;
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let
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cfg = config.services.zabbixServer;
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stateDir = "/var/run/zabbix";
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logDir = "/var/log/zabbix";
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libDir = "/var/lib/zabbix";
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pidFile = "${stateDir}/zabbix_server.pid";
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configFile = pkgs.writeText "zabbix_server.conf"
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''
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LogFile = ${logDir}/zabbix_server
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PidFile = ${pidFile}
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${optionalString (cfg.dbServer != "localhost") ''
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DBHost = ${cfg.dbServer}
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''}
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DBName = zabbix
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DBUser = zabbix
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${optionalString (cfg.dbPassword != "") ''
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DBPassword = ${cfg.dbPassword}
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''}
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${config.services.zabbixServer.extraConfig}
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'';
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useLocalPostgres = cfg.dbServer == "localhost" || cfg.dbServer == "";
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in
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{
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###### interface
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options = {
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services.zabbixServer.enable = mkOption {
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default = false;
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type = types.bool;
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description = ''
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Whether to run the Zabbix server on this machine.
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'';
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};
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services.zabbixServer.dbServer = mkOption {
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default = "localhost";
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type = types.str;
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description = ''
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Hostname or IP address of the database server.
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Use an empty string ("") to use peer authentication.
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'';
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};
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services.zabbixServer.dbPassword = mkOption {
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default = "";
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type = types.str;
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description = "Password used to connect to the database server.";
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};
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services.zabbixServer.extraConfig = mkOption {
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default = "";
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type = types.lines;
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description = ''
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Configuration that is injected verbatim into the configuration file.
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'';
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};
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};
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###### implementation
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config = mkIf cfg.enable {
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services.postgresql.enable = useLocalPostgres;
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users.extraUsers = singleton
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{ name = "zabbix";
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uid = config.ids.uids.zabbix;
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description = "Zabbix daemon user";
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};
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systemd.services."zabbix-server" =
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{ description = "Zabbix Server";
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wantedBy = [ "multi-user.target" ];
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after = optional useLocalPostgres "postgresql.service";
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preStart =
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''
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mkdir -m 0755 -p ${stateDir} ${logDir} ${libDir}
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chown zabbix ${stateDir} ${logDir} ${libDir}
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if ! test -e "${libDir}/db-created"; then
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${pkgs.postgresql}/bin/createuser --no-superuser --no-createdb --no-createrole zabbix || true
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${pkgs.postgresql}/bin/createdb --owner zabbix zabbix || true
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cat ${pkgs.zabbix.server}/share/zabbix/db/schema/postgresql.sql | ${pkgs.su}/bin/su -s "$SHELL" zabbix -c '${pkgs.postgresql}/bin/psql zabbix'
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cat ${pkgs.zabbix.server}/share/zabbix/db/data/images_pgsql.sql | ${pkgs.su}/bin/su -s "$SHELL" zabbix -c '${pkgs.postgresql}/bin/psql zabbix'
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cat ${pkgs.zabbix.server}/share/zabbix/db/data/data.sql | ${pkgs.su}/bin/su -s "$SHELL" zabbix -c '${pkgs.postgresql}/bin/psql zabbix'
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touch "${libDir}/db-created"
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fi
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'';
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path = [ pkgs.nettools ];
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serviceConfig.ExecStart = "@${pkgs.zabbix.server}/sbin/zabbix_server zabbix_server --config ${configFile}";
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serviceConfig.Type = "forking";
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serviceConfig.Restart = "always";
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serviceConfig.RestartSec = 2;
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serviceConfig.PIDFile = pidFile;
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};
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};
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}
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