more work on create() droplet

Signed-off-by: Jeff Carr <[email protected]>

1 files changed, 29 insertions, 0 deletions

diff --git a/validate.go b/validate.go
index a95ce29..a4caa52 100644
--- a/validate.go
+++ b/validate.go
@@ -133,6 +133,35 @@ func ValidateDiskFilenames(cluster *pb.Cluster) []*pb.Event {
 	return alle
 }
 
+func getNewMac() (string, error) {
+	// mac address map to check for duplicates
+	var macs map[string]string
+	macs = make(map[string]string)
+
+	for _, d := range me.cluster.Droplets {
+		for _, n := range d.Networks {
+			// log.Println("network:", n.Mac, d.Uuid, d.Hostname)
+			if _, ok := macs[n.Mac]; ok {
+				// UUID already exists
+				log.Info("duplicate MAC", n.Mac, macs[n.Mac])
+				log.Info("duplicate MAC", n.Mac, d.Hostname)
+				return "", errors.New("duplicate MAC: " + d.Hostname + " and " + macs[n.Mac])
+			}
+			macs[n.Mac] = d.Hostname
+		}
+	}
+
+	var mac string = "22:22:22:22:22:09"
+	for {
+		if _, ok := macs[mac]; ok {
+			log.Info("MAC already defined", mac, macs[mac])
+			continue
+		}
+		return mac, nil
+	}
+	return mac, nil
+}
+
 // runs on startup. dies if there are duplicates
 // the config file must then be edited by hand
 func ValidateDroplets(cluster *pb.Cluster) (map[string]string, map[string]string, error) {