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openvswitch: better integration with systemd

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Systemd dependencies for scripted mode
were refactored according to analysis in #34586.

networking.vswitches can now be used with systemd-networkd,
although they are not supported by the daemon, a nixos receipe
creates the switch and attached required interfaces (just like
the scripted version).

Vlans and internal interfaces are implemented following the
  template format i.e. each interface is
described using an attributeSet (vlan and type at the moment).
If vlan is present, then interface is added to the vswitch with
given tag (access mode). Type internal enabled vswitch to create
interfaces (see openvswitch docs).

Added configuration for configuring supported openFlow version on
the vswitch

This commit is a split from the original PR #35127.
This commit is contained in:
Netix (Espinet François)
2018-12-29 11:16:51 +01:00
parent aa4a1b01d5
commit cd3597b486
6 changed files with 151 additions and 34 deletions
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56
nixos/modules/tasks/network-interfaces.nix
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@@ -13,7 +13,7 @@ let
slaves = concatMap (i: i.interfaces) (attrValues cfg.bonds)
++ concatMap (i: i.interfaces) (attrValues cfg.bridges)
++ concatMap (i: i.interfaces) (attrValues cfg.vswitches);
++ concatMap (i: attrNames (filterAttrs (name: config: ! (config.type == "internal" || hasAttr name cfg.interfaces)) i.interfaces)) (attrValues cfg.vswitches);
slaveIfs = map (i: cfg.interfaces.${i}) (filter (i: cfg.interfaces ? ${i}) slaves);
@@ -310,6 +310,32 @@ let
};
vswitchInterfaceOpts = {name, ...}: {
options = {
name = mkOption {
description = "Name of the interface";
example = "eth0";
type = types.str;
};
vlan = mkOption {
description = "Vlan tag to apply to interface";
example = 10;
type = types.nullOr types.int;
default = null;
};
type = mkOption {
description = "Openvswitch type to assign to interface";
example = "internal";
type = types.nullOr types.str;
default = null;
};
};
};
hexChars = stringToCharacters "0123456789abcdef";
isHexString = s: all (c: elem c hexChars) (stringToCharacters (toLower s));
@@ -460,8 +486,8 @@ in
networking.vswitches = mkOption {
default = { };
example =
{ vs0.interfaces = [ "eth0" "eth1" ];
vs1.interfaces = [ "eth2" "wlan0" ];
{ vs0.interfaces = { eth0 = { }; lo1 = { type="internal"; }; };
vs1.interfaces = [ { name = "eth2"; } { name = "lo2"; type="internal"; } ];
};
description =
''
@@ -478,9 +504,8 @@ in
interfaces = mkOption {
example = [ "eth0" "eth1" ];
type = types.listOf types.str;
description =
"The physical network interfaces connected by the vSwitch.";
description = "The physical network interfaces connected by the vSwitch.";
type = with types; loaOf (submodule vswitchInterfaceOpts);
};
controllers = mkOption {
@@ -504,6 +529,25 @@ in
'';
};
# TODO: custom "openflow version" type, with list from existing openflow protocols
supportedOpenFlowVersions = mkOption {
type = types.listOf types.str;
example = [ "OpenFlow10" "OpenFlow13" "OpenFlow14" ];
default = [ "OpenFlow13" ];
description = ''
Supported versions to enable on this switch.
'';
};
# TODO: use same type as elements from supportedOpenFlowVersions
openFlowVersion = mkOption {
type = types.str;
default = "OpenFlow13";
description = ''
Version of OpenFlow protocol to use when communicating with the switch internally (e.g. with <literal>openFlowRules</literal>).
'';
};
extraOvsctlCmds = mkOption {
type = types.lines;
default = "";