88 lines
2.1 KiB
Nix
88 lines
2.1 KiB
Nix
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{config, pkgs}:
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let
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nagiosUser = "nagios";
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nagiosGroup = "nogroup";
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nagiosState = "/var/lib/nagios";
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nagiosLogDir = "/var/log/nagios";
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nagiosObjectDefs = [
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./timeperiods.cfg
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./host-templates.cfg
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./service-templates.cfg
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./commands.cfg
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] ++ config.services.nagios.objectDefs;
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nagiosObjectDefsDir = pkgs.runCommand "nagios-objects" {}
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"ensureDir $out; ln -s ${toString nagiosObjectDefs} $out/";
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nagiosCfgFile = pkgs.writeText "nagios.cfg" "
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# Paths for state and logs.
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log_file=${nagiosLogDir}/current
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log_archive_path=${nagiosLogDir}/archive
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status_file=${nagiosState}/status.dat
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object_cache_file=${nagiosState}/objects.cache
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comment_file=${nagiosState}/comment.dat
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downtime_file=${nagiosState}/downtime.dat
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temp_file=${nagiosState}/nagios.tmp
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lock_file=/var/run/nagios.lock # Not used I think.
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state_retention_file=${nagiosState}/retention.dat
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# Configuration files.
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#resource_file=resource.cfg
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cfg_dir=${nagiosObjectDefsDir}
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# Uid/gid that the daemon runs under.
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nagios_user=${nagiosUser}
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nagios_group=${nagiosGroup}
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# Misc. options.
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illegal_macro_output_chars=`~$&|'\"<>
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retain_state_information=1
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";
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in
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{
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name = "nagios";
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users = [
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{ name = nagiosUser;
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uid = (import ../../system/ids.nix).uids.nagios;
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description = "Nagios monitoring daemon";
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home = nagiosState;
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}
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];
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# Run `nagios -v' to check the validity of the configuration file so
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# that a nixos-rebuild fails *before* we kill the running Nagios
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# daemon.
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buildHook = "${pkgs.nagios}/bin/nagios -v ${nagiosCfgFile}";
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job = "
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description \"Nagios monitoring daemon\"
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start on network-interfaces/started
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stop on network-interfaces/stop
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start script
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mkdir -m 0755 -p ${nagiosState} ${nagiosLogDir}
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chown ${nagiosUser} ${nagiosState} ${nagiosLogDir}
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end script
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respawn
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script
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for i in ${toString config.services.nagios.plugins}; do
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export PATH=$i/bin:$i/sbin:$i/libexec:$PATH
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done
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exec ${pkgs.nagios}/bin/nagios ${nagiosCfgFile}
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end script
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";
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}
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