fix readme and remove swarm prefix

Signed-off-by: JChien <jeffchien13@gmail.com>

discovery/README.md

@@ -81,17 +81,13 @@ http://<node_ip:2375>
 ###### Using consul
 
 ```bash
-# create a cluster
-$ swarm create
-6856663cdefdec325839a4b7e1de38e8
-
 # on each of your nodes, start the swarm agent
 #  <node_ip> doesn't have to be public (eg. 192.168.0.X),
 #  as long as the other nodes can reach it, it is fine.
-$ swarm join --discovery consul://<consul_addr>/>6856663cdefdec325839a4b7e1de38e8> --addr=<node_ip:2375>
+$ swarm join --discovery consul://<consul_addr>/<path> --addr=<node_ip:2375>
 
 # start the manager on any machine or your laptop
-$ swarm manage --discovery consul://<consul_addr>/>6856663cdefdec325839a4b7e1de38e8> --addr=<swarm_ip:swarm_port>
+$ swarm manage --discovery consul://<consul_addr>/<path> --addr=<swarm_ip:swarm_port>
 
 # use the regular docker cli
 $ docker -H <swarm_ip:swarm_port> info
@@ -101,7 +97,7 @@ $ docker -H <swarm_ip:swarm_port> logs ...
 ...
 
 # list nodes in your cluster
-$ swarm list --discovery consul://<consul_addr>/>path>
+$ swarm list --discovery consul://<consul_addr>/<path>
 http://<node_ip:2375>
 ```
 

discovery/consul/consul.go

@@ -16,8 +16,6 @@ type ConsulDiscoveryService struct {
 	prefix    string
 }
 
-const swarm_prefix = "swarm"
-
 func init() {
 	discovery.Register("consul", &ConsulDiscoveryService{})
 }
@@ -39,7 +37,7 @@ func (s *ConsulDiscoveryService) Initialize(uris string, heartbeat int) error {
 	}
 	s.client = client
 	s.heartbeat = uint64(heartbeat)
-	s.prefix = swarm_prefix + "/" + path + "/"
+	s.prefix = path + "/"
 	kv := s.client.KV()
 	p := &consul.KVPair{Key: s.prefix, Value: nil}
 	_, err = kv.Put(p, nil)

discovery/consul/consul_test.go

@@ -9,5 +9,5 @@ import (
 func TestInitialize(t *testing.T) {
 	discovery := &ConsulDiscoveryService{}
 	discovery.Initialize("127.0.0.1:8500/path", 0)
-	assert.Equal(t, discovery.prefix, "swarm/path/")
+	assert.Equal(t, discovery.prefix, "path/")
 }