VOL-381 add unum container to support ONOS cluster formation under swarm
Change-Id: Ic260edda19bb199ed040f05164ab605f28c919d0
diff --git a/unum/verify.go b/unum/verify.go
new file mode 100644
index 0000000..02a02c7
--- /dev/null
+++ b/unum/verify.go
@@ -0,0 +1,51 @@
+// Copyright 2017 the original author or authors.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+// http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package main
+
+import (
+ "fmt"
+ "github.com/tatsushid/go-fastping"
+ "net"
+ "time"
+)
+
+// VerifyConnection verify the connection by attempt to connect to the host
+func VerifyNodes(nodes []string, port int) error {
+
+ var err error
+
+ pinger := fastping.NewPinger()
+ //pinger.Network("udp")
+ pinger.MaxRTT, err = time.ParseDuration("1s")
+ if err != nil {
+ return err
+ }
+
+ count := len(nodes)
+ pinger.OnRecv = func(addr *net.IPAddr, rtt time.Duration) {
+ count -= 1
+ }
+ for _, node := range nodes {
+ pinger.AddIPAddr(&net.IPAddr{IP: net.ParseIP(node)})
+ }
+ if err := pinger.Run(); err != nil {
+ return err
+ }
+ if count != 0 {
+ return fmt.Errorf("Unable to verify all nodes, %d unverified", count)
+ }
+
+ return nil
+}