Remove flags from server package. Create cmd package to parse flags and cli usage

cmd/cmd.go

@@ -0,0 +1,37 @@
+package cmd
+
+import (
+	"flag"
+
+	"github.com/asim/go-micro/registry"
+	"github.com/asim/go-micro/server"
+	"github.com/asim/go-micro/store"
+)
+
+var (
+	flagBindAddress string
+	flagRegistry    string
+	flagStore       string
+)
+
+func init() {
+	flag.StringVar(&flagBindAddress, "bind_address", ":0", "Bind address for the server. 127.0.0.1:8080")
+	flag.StringVar(&flagRegistry, "registry", "consul", "Registry for discovery. kubernetes, consul, etc")
+	flag.StringVar(&flagStore, "store", "consul", "Store used as a basic key/value store using consul, memcached, etc")
+}
+
+func Init() {
+	flag.Parse()
+
+	server.Address = flagBindAddress
+
+	switch flagRegistry {
+	case "kubernetes":
+		registry.DefaultRegistry = registry.NewKubernetesRegistry()
+	}
+
+	switch flagStore {
+	case "memcached":
+		store.DefaultStore = store.NewMemcacheStore()
+	}
+}