func syncAddressSets(ovsdbClient ovsdb.Client, labels []db.Label) {
ovsdbAddresses, err := ovsdbClient.ListAddressSets(lSwitch)
if err != nil {
log.WithError(err).Error("Failed to list address sets")
return
}
var expAddressSets []ovsdb.AddressSet
for _, l := range labels {
if l.Label == stitch.PublicInternetLabel {
continue
}
expAddressSets = append(expAddressSets,
ovsdb.AddressSet{
Name: addressSetName(l.Label),
Addresses: unique(append(l.ContainerIPs, l.IP)),
},
)
}
ovsdbKey := func(intf interface{}) interface{} {
addrSet := intf.(ovsdb.AddressSet)
// OVSDB returns the addresses in a non-deterministic order, so we
// sort them.
sort.Strings(addrSet.Addresses)
return addressSetKey{
name: addrSet.Name,
addresses: strings.Join(addrSet.Addresses, " "),
}
}
_, toCreate, toDelete := join.HashJoin(addressSlice(expAddressSets),
addressSlice(ovsdbAddresses), ovsdbKey, ovsdbKey)
for _, intf := range toDelete {
addr := intf.(ovsdb.AddressSet)
if err := ovsdbClient.DeleteAddressSet(lSwitch, addr.Name); err != nil {
log.WithError(err).Warn("Error deleting address set")
}
}
for _, intf := range toCreate {
addr := intf.(ovsdb.AddressSet)
if err := ovsdbClient.CreateAddressSet(
lSwitch, addr.Name, addr.Addresses); err != nil {
log.WithError(err).Warn("Error adding address set")
}
}
}
