func (d *Daemon) allocateIPs(ep *endpoint.Endpoint) error {
allocateIP := func(ep *endpoint.Endpoint, ipamReq ipam.IPAMReq) (resp *ipam.IPAMRep, err error) {
if ep.IsCNI() {
resp, err = d.AllocateIP(ipam.CNIIPAMType, ipamReq)
} else if ep.IsLibnetwork() {
resp, err = d.AllocateIP(ipam.LibnetworkIPAMType, ipamReq)
}
return
}
releaseIP := func(ep *endpoint.Endpoint, ipamReq ipam.IPAMReq) (err error) {
if ep.IsCNI() {
err = d.ReleaseIP(ipam.CNIIPAMType, ipamReq)
} else if ep.IsLibnetwork() {
err = d.ReleaseIP(ipam.LibnetworkIPAMType, ipamReq)
}
return
}
_, err := allocateIP(ep, ep.IPv6.IPAMReq())
if err != nil {
// TODO if allocation failed reallocate a new IP address and setup veth
// pair accordingly
return fmt.Errorf("unable to reallocate IPv6 address: %s", err)
} else {
log.Infof("EP %d's IPv6 successfully reallocated", ep.ID)
}
defer func(ep *endpoint.Endpoint) {
if err != nil {
releaseIP(ep, ep.IPv6.IPAMReq())
}
}(ep)
if d.conf.IPv4Enabled {
if ep.IPv4 != nil {
_, err := allocateIP(ep, ep.IPv4.IPAMReq())
if err != nil {
return fmt.Errorf("unable to reallocate IPv4 address: %s", err)
} else {
log.Infof("EP %d's IPv4 successfully reallocated", ep.ID)
}
}
}
return nil
}
