154 lines
3.4 KiB
Nix
154 lines
3.4 KiB
Nix
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{pkgs, config, ...}:
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###### interface
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let
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inherit (pkgs.lib) mkOption mkIf;
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options = {
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services = {
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nfsKernel = {
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enable = mkOption {
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default = false;
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description = "
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wether to use the kernel nfs functionality to export filesystems.
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You should be aware about existing security issues.
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requires portmap!
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";
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};
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exports = mkOption {
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default = "/etc/exports";
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description = "
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the file listing the directories to be exported.
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install nfsUtils and run man exports to learn about its format.
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The exports setting can either be a file path or the file contents.
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";
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};
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hostName = mkOption {
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default = null;
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description = "
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specify a particular hostname (or address) that NFS requests will be accepted on.
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Default: all.
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See man rpc.nfsd (-H option)
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";
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};
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nproc = mkOption {
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default = 8;
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description = "
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specify the number of NFS server threads. (-> man rpc.nfsd). Defaults to recommended value 8
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";
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};
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createMountPoints = mkOption {
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default = false;
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description = "Whether to create the mount points in the exports file at startup time.";
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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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inherit (pkgs) writeText openssh;
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cfg = (config.services.nfsKernel);
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modprobe = config.system.sbin.modprobe;
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exports = if builtins.pathExists cfg.exports
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then cfg.exports else pkgs.writeText "exports" cfg.exports;
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in
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mkIf config.services.nfsKernel.enable {
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require = [
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options
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];
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environment.etc = [
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{ source = exports;
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target = "exports"; }
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];
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services = {
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extraJobs = [
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{
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name = "nfs-kernel-exports";
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job = ''
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description "export filesystems using kernel nfs"
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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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export PATH=${pkgs.nfsUtils}/sbin:$PATH
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mkdir -p /var/lib/nfs
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${modprobe}/sbin/modprobe nfsd || true
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${if cfg.createMountPoints == true then
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''
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cat /etc/exports | while read line
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do
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for i in $line
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do
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mkdir -p $i
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break
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done
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done
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''
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else ""}
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exportfs -ra
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end script
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respawn sleep 1000000
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'';
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}
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{
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name = "nfs-kernel-rpc-nfsd";
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job = ''
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description "export filesystems using kernel nfs"
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start on nfs-kernel-exports/started
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stop on nfs-kernel-exports/stop
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respawn ${pkgs.nfsUtils}/sbin/rpc.nfsd ${if cfg.hostName != null then "-H ${cfg.hostName}" else ""} ${builtins.toString cfg.nproc}
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'';
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}
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{
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name = "nfs-kernel-mountd";
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job = ''
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description "export filesystems using kernel nfs"
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start on nfs-kernel-rpc-nfsd/started
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stop on nfs-kernel-exports/stop
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respawn ${pkgs.nfsUtils}/sbin/rpc.mountd -F -f ${exports}
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'';
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}
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{
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name = "nfs-kernel-statd";
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job = ''
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description "NSM (Network Status Monitor) of the RPC protocol"
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start on nfs-kernel-rpc-nfsd/started
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stop on nfs-kernel-exports/stop
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start script
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mkdir -p /var/lib/nfs
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end script
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respawn ${pkgs.nfsUtils}/sbin/rpc.statd
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'';
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}
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];
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};
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}
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