60 lines
1.5 KiB
Nix
60 lines
1.5 KiB
Nix
# Configuration for the Name Service Switch (/etc/nsswitch.conf).
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{ config, pkgs, ... }:
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with pkgs.lib;
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let
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options = {
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# NSS modules. Hacky!
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system.nssModules = mkOption {
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internal = true;
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default = [];
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description = "
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Search path for NSS (Name Service Switch) modules. This allows
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several DNS resolution methods to be specified via
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<filename>/etc/nsswitch.conf</filename>.
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";
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merge = mergeListOption;
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apply = list:
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{
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inherit list;
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path = makeLibraryPath list;
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};
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};
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};
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inherit (config.services.avahi) nssmdns;
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in
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{
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require = [ options ];
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environment.etc =
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[ # Name Service Switch configuration file. Required by the C library.
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# !!! Factor out the mdns stuff. The avahi module should define
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# an option used by this module.
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{ source = pkgs.writeText "nsswitch.conf"
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''
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passwd: files ldap
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group: files ldap
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shadow: files ldap
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hosts: files ${optionalString nssmdns "mdns_minimal [NOTFOUND=return]"} dns ${optionalString nssmdns "mdns"} myhostname
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networks: files dns
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ethers: files
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services: files
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protocols: files
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'';
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target = "nsswitch.conf";
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}
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];
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# Use nss-myhostname to ensure that our hostname always resolves to
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# a valid IP address. It returns all locally configured IP
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# addresses, or ::1 and 127.0.0.2 as fallbacks.
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system.nssModules = [ pkgs.systemd ];
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}
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