movefasta/nixpkgs
0
0
Fork 0
mirror of https://github.com/NixOS/nixpkgs.git synced 2025-07-12 13:18:57 +03:00
Code Activity

nixos networking: add vswitch option

Browse source 
Add a configuration option for Open vSwitch that is
similar to the option for the Linux kernel ethernet
bridge.
This commit is contained in:
Thomas Strobel 2015-09-22 15:49:17 +02:00
parent 000a2108ba
commit 59bc47c9ed
4 changed files with 123 additions and 1 deletions
Download patch file Download diff file Expand all files Collapse all files

40
nixos/modules/tasks/network-interfaces-scripted.nix
View file

@ -220,6 +220,45 @@ in
'';
});
createVswitchDevice = n: v: nameValuePair "${n}-netdev"
(let
managedInterfaces = filter (x: hasAttr x cfg.interfaces) v.interfaces;
managedInterfaceServices = concatMap (i: [ "network-addresses-${i}.service" "network-link-${i}.service" ]) managedInterfaces;
virtualInterfaces = filter (x: (hasAttr x cfg.interfaces) && cfg.interfaces.${x}.virtual) v.interfaces;
virtualInterfaceServices = concatMap (i: [ "${i}-netdev.service" ]) virtualInterfaces;
deps = map subsystemDevice v.interfaces;
ofRules = pkgs.writeText "vswitch-${n}-openFlowRules" v.openFlowRules;
in
{ description = "Open vSwitch Interface ${n}";
wantedBy = [ "network.target" "vswitchd.service" (subsystemDevice n) ];
requires = optionals v.bindInterfaces (deps ++ managedInterfaceServices ++ virtualInterfaceServices);
requiredBy = optionals v.bindInterfaces (managedInterfaceServices ++ virtualInterfaceServices);
bindsTo = deps ++ [ "vswitchd.service" ];
partOf = [ "vswitchd.service" ];
after = [ "network-pre.target" "vswitchd.service" ] ++ deps ++ managedInterfaceServices ++ virtualInterfaceServices;
before = [ "network-interfaces.target" (subsystemDevice n) ];
serviceConfig.Type = "oneshot";
serviceConfig.RemainAfterExit = true;
path = [ pkgs.iproute config.virtualisation.vswitch.package ];
script = ''
echo "Removing old Open vSwitch ${n}..."
ovs-vsctl --if-exists del-br ${n}
echo "Adding Open vSwitch ${n}..."
ovs-vsctl -- add-br ${n} ${concatMapStrings (i: " -- add-port ${n} ${i}") v.interfaces} \
${concatMapStrings (x: " -- set-controller ${n} " + x) v.controllers} \
${concatMapStrings (x: " -- " + x) (splitString "\n" v.extraOvsctlCmds)}
echo "Adding OpenFlow rules for Open vSwitch ${n}..."
ovs-ofctl add-flows ${n} ${ofRules}
'';
postStop = ''
ip link set ${n} down || true
ovs-ofctl del-flows ${n} || true
ovs-vsctl --if-exists del-br ${n}
'';
});
createBondDevice = n: v: nameValuePair "${n}-netdev"
(let
deps = map subsystemDevice v.interfaces;
@ -335,6 +374,7 @@ in
map configureAddrs interfaces ++
map createTunDevice (filter (i: i.virtual) interfaces))
// mapAttrs' createBridgeDevice cfg.bridges
// mapAttrs' createVswitchDevice cfg.vswitches
// mapAttrs' createBondDevice cfg.bonds
// mapAttrs' createMacvlanDevice cfg.macvlans
// mapAttrs' createSitDevice cfg.sits