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systemd: Add ability to define networks

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This commit is contained in:
William A. Kennington III 2014-11-13 13:33:55 -08:00
parent 61d7fb934b
commit 08e74f2791
2 changed files with 474 additions and 0 deletions
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157
nixos/modules/system/boot/systemd.nix
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@ -96,6 +96,9 @@ let
"systemd-modules-load.service"
"kmod-static-nodes.service"
# Networking
"systemd-networkd.service"
# Filesystems.
"systemd-fsck@.service"
"systemd-fsck-root.service"
@ -384,6 +387,103 @@ let
'';
};
commonMatchText = def: ''
[Match]
${attrsToSection def.matchConfig}
'';
linkToUnit = name: def:
{ inherit (def) enable;
text = commonMatchText def +
''
[Link]
${attrsToSection def.linkConfig}
'';
};
netdevToUnit = name: def:
{ inherit (def) enable;
text = commonMatchText def +
''
[NetDev]
${attrsToSection def.netdevConfig}
${optionalString (def.vlanConfig != { }) ''
[VLAN]
${attrsToSection def.vlanConfig}
''}
${optionalString (def.macvlanConfig != { }) ''
[MACVLAN]
${attrsToSection def.macvlanConfig}
''}
${optionalString (def.vxlanConfig != { }) ''
[VXLAN]
${attrsToSection def.vxlanConfig}
''}
${optionalString (def.tunnelConfig != { }) ''
[Tunnel]
${attrsToSection def.tunnelConfig}
''}
${optionalString (def.peerConfig != { }) ''
[Peer]
${attrsToSection def.peerConfig}
''}
${optionalString (def.tunConfig != { }) ''
[Tun]
${attrsToSection def.tunConfig}
''}
${optionalString (def.tapConfig != { }) ''
[Tap]
${attrsToSection def.tapConfig}
''}
${optionalString (def.bondConfig != { }) ''
[Bond]
${attrsToSection def.bondConfig}
''}
'';
};
networkToUnit = name: def:
{ inherit (def) enable;
text = commonMatchText def +
''
[Network]
${attrsToSection def.networkConfig}
${concatStringsSep "\n" (map (s: "Address=${s}") def.address)}
${concatStringsSep "\n" (map (s: "Gateway=${s}") def.gateway)}
${concatStringsSep "\n" (map (s: "DNS=${s}") def.dns)}
${concatStringsSep "\n" (map (s: "NTP=${s}") def.ntp)}
${concatStringsSep "\n" (map (s: "VLAN=${s}") def.vlan)}
${concatStringsSep "\n" (map (s: "MACVLAN=${s}") def.macvlan)}
${concatStringsSep "\n" (map (s: "VXLAN=${s}") def.vxlan)}
${concatStringsSep "\n" (map (s: "Tunnel=${s}") def.tunnel)}
${optionalString (def.dhcpConfig != { }) ''
[DHCP]
${attrsToSection def.dhcpConfig}
''}
${flip concatMapStrings def.addresses (x: ''
[Address]
${attrsToSection x.addressConfig}
'')}
${flip concatMapStrings def.routes (x: ''
[Route]
${attrsToSection x.routeConfig}
'')}
'';
};
generateUnits = type: units: upstreamUnits: upstreamWants:
pkgs.runCommand "${type}-units" { preferLocalBuild = true; } ''
mkdir -p $out
@ -562,6 +662,47 @@ in
'';
};
systemd.network.enable = mkOption {
default = false;
type = types.bool;
description = ''
Whether to enable networkd or not.
'';
};
systemd.network.links = mkOption {
default = {};
type = types.attrsOf types.optionSet;
options = [ linkOptions ];
description = "Definiton of systemd network links.";
};
systemd.network.netdevs = mkOption {
default = {};
type = types.attrsOf types.optionSet;
options = [ netdevOptions ];
description = "Definiton of systemd network devices.";
};
systemd.network.networks = mkOption {
default = {};
type = types.attrsOf types.optionSet;
options = [ networkOptions ];
description = "Definiton of systemd networks.";
};
systemd.network.units = mkOption {
description = "Definition of networkd units.";
default = {};
type = types.attrsOf types.optionSet;
options = { name, config, ... }:
{ options = concreteUnitOptions;
config = {
unit = mkDefault (makeUnit name config);
};
};
};
systemd.defaultUnit = mkOption {
default = "multi-user.target";
type = types.str;
@ -714,6 +855,9 @@ in
environment.etc."systemd/system".source =
generateUnits "system" cfg.units upstreamSystemUnits upstreamSystemWants;
environment.etc."systemd/network".source =
generateUnits "network" cfg.network.units [] [];
environment.etc."systemd/user".source =
generateUnits "user" cfg.user.units upstreamUserUnits [];
@ -779,6 +923,11 @@ in
(v: let n = escapeSystemdPath v.where;
in nameValuePair "${n}.automount" (automountToUnit n v)) cfg.automounts);
systemd.network.units =
mapAttrs' (n: v: nameValuePair "${n}.link" (linkToUnit n v)) cfg.network.links
// mapAttrs' (n: v: nameValuePair "${n}.netdev" (netdevToUnit n v)) cfg.network.netdevs
// mapAttrs' (n: v: nameValuePair "${n}.network" (networkToUnit n v)) cfg.network.networks;
systemd.user.units =
mapAttrs' (n: v: nameValuePair "${n}.service" (serviceToUnit n v)) cfg.user.services
// mapAttrs' (n: v: nameValuePair "${n}.socket" (socketToUnit n v)) cfg.user.sockets;
@ -800,6 +949,14 @@ in
users.extraUsers.systemd-journal-gateway.uid = config.ids.uids.systemd-journal-gateway;
users.extraGroups.systemd-journal-gateway.gid = config.ids.gids.systemd-journal-gateway;
# Networkd
users.extraUsers.systemd-network.uid = config.ids.uids.systemd-network;
users.extraGroups.systemd-network.gid = config.ids.gids.systemd-network;
systemd.services.systemd-networkd.wantedBy =
optional config.systemd.network.enable "multi-user.target";
systemd.services.systemd-networkd.restartTriggers =
[ config.environment.etc."systemd/network".source ];
# Generate timer units for all services that have a ‘startAt’ value.
systemd.timers =
mapAttrs (name: service: