ee6c9bb998
starts the given job and waits until it's running; "stop_check" checks that the current job hasn't been asked to stop. svn path=/nixos/trunk/; revision=33214
100 lines
2 KiB
Nix
100 lines
2 KiB
Nix
{ config, pkgs, ... }:
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with pkgs.lib;
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let
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uid = config.ids.uids.portmap;
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gid = config.ids.gids.portmap;
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portmap = pkgs.portmap.override { daemonUID = uid; daemonGID = gid; };
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in
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{
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###### interface
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options = {
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services.portmap = {
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enable = mkOption {
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default = false;
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description = ''
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Whether to enable `portmap', an ONC RPC directory service
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notably used by NFS and NIS, and which can be queried
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using the rpcinfo(1) command.
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'';
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};
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verbose = mkOption {
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default = false;
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description = ''
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Whether to enable verbose output.
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'';
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};
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chroot = mkOption {
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default = "/var/empty";
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description = ''
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If non-empty, a path to change root to.
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'';
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};
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};
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};
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###### implementation
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config = mkIf config.services.portmap.enable {
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environment.systemPackages = [ portmap ];
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users.extraUsers = singleton
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{ name = "portmap";
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inherit uid;
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description = "Portmap daemon user";
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home = "/var/empty";
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};
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users.extraGroups = singleton
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{ name = "portmap";
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inherit gid;
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};
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jobs.portmap =
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{ description = "ONC RPC portmap";
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startOn = "started network-interfaces";
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stopOn = ""; # needed during shutdown
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daemonType = "fork";
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path = [ portmap pkgs.netcat ];
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exec =
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''
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portmap \
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${optionalString (config.services.portmap.chroot != "")
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"-t '${config.services.portmap.chroot}'"} \
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${if config.services.portmap.verbose then "-v" else ""}
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'';
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postStart =
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''
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# Portmap forks into the background before it starts
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# listening, so wait until its ready.
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while ! nc -z localhost 111; do
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stop_check
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sleep 1
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done
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'';
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};
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};
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}
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