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ipam must honor preferedIP ahead of random allocation from subPool

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Currently the default ipam implementation ignores the prefered ip if the
request is made on an existing sub-pool. The priority should be other
way around.

Signed-off-by: Madhu Venugopal <madhu@docker.com>
This commit is contained in:
Madhu Venugopal 2015-10-05 00:40:17 -07:00
parent 5f21cf3df1
commit 782d9a4618
1 changed files with 4 additions and 4 deletions
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8
libnetwork/ipam/allocator.go
View file

@ -425,16 +425,16 @@ func (a *Allocator) getAddress(nw *net.IPNet, bitmask *bitseq.Handle, prefAddres
}
if ipr == nil && prefAddress == nil {
ordinal, err = bitmask.SetAny()
} else if ipr != nil {
base.IP = ipr.Sub.IP
ordinal, err = bitmask.SetAnyInRange(ipr.Start, ipr.End)
} else {
} else if prefAddress != nil {
hostPart, e := types.GetHostPartIP(prefAddress, base.Mask)
if e != nil {
return nil, fmt.Errorf("failed to allocate preferred address %s: %v", prefAddress.String(), e)
}
ordinal = ipToUint32(types.GetMinimalIP(hostPart))
err = bitmask.Set(ordinal)
} else {
base.IP = ipr.Sub.IP
ordinal, err = bitmask.SetAnyInRange(ipr.Start, ipr.End)
}
if err != nil {
return nil, ipamapi.ErrNoAvailableIPs