From 918ed1ceffca8db72d682519ab83f3bc2088f290 Mon Sep 17 00:00:00 2001
From: lightcode <lightcode@users.noreply.github.com>
Date: Tue, 17 Apr 2018 10:08:15 +0200
Subject: [PATCH] Add an option to change consul tag

---
 README.md | 3 ++-
 consul.go | 7 ++++---
 main.go   | 8 +++-----
 3 files changed, 9 insertions(+), 9 deletions(-)

diff --git a/README.md b/README.md
index 5445fff3..d94ea077 100644
--- a/README.md
+++ b/README.md
@@ -14,7 +14,8 @@ Kube2consul runs in a kubernetes cluster by default. It is able to work out of c
 | Command line option | Environment option   | Default value             |
 | ------------------- | -------------------- | ------------------------- |
 | `-consul-api`       | `K2C_CONSUL_API`     | `"127.0.0.1:8500"`        |
+| `-consul-tag`       | `K2C_CONSUL_TAG`     | `"kube2consul"`           |
 | `-consul-token`     | `K2C_CONSUL_TOKEN`   | `""`                      |
+| `-kubeconfig`       | `K2C_KUBECONFIG`     | `""`                      |
 | `-kubernetes-api`   | `K2C_KUBERNETES_API` | `""`                      |
 | `-resync-period`    | `K2C_RESYNC_PERIOD`  | `30`                      |
-| `-kubeconfig`       | `K2C_KUBECONFIG`     | `""`                      |
diff --git a/consul.go b/consul.go
index cc7618c7..59c974fc 100644
--- a/consul.go
+++ b/consul.go
@@ -2,6 +2,7 @@ package main
 
 import (
 	"fmt"
+
 	"github.com/golang/glog"
 	consulapi "github.com/hashicorp/consul/api"
 )
@@ -27,7 +28,7 @@ func (k2c *kube2consul) registerEndpoint(e Endpoint) error {
 		return nil
 	}
 
-	consulServices, _, err := k2c.consulCatalog.Service(e.Name, consulTag, nil)
+	consulServices, _, err := k2c.consulCatalog.Service(e.Name, opts.consulTag, nil)
 	if err != nil {
 		return fmt.Errorf("Failed to get services: %v", err)
 	}
@@ -41,7 +42,7 @@ func (k2c *kube2consul) registerEndpoint(e Endpoint) error {
 	service := &consulapi.AgentService{
 		Service: e.Name,
 		Port:    int(e.Port),
-		Tags:    []string{consulTag},
+		Tags:    []string{opts.consulTag},
 	}
 
 	reg := &consulapi.CatalogRegistration{
@@ -70,7 +71,7 @@ func endpointExists(refName, address string, port int, endpoints []Endpoint) boo
 
 func (k2c *kube2consul) removeDeletedEndpoints(serviceName string, endpoints []Endpoint) error {
 	updatedNodes := make(map[string]struct{})
-	services, _, err := k2c.consulCatalog.Service(serviceName, consulTag, nil)
+	services, _, err := k2c.consulCatalog.Service(serviceName, opts.consulTag, nil)
 	if err != nil {
 		return fmt.Errorf("Failed to get services: %v", err)
 	}
diff --git a/main.go b/main.go
index a558a998..2fa664a1 100644
--- a/main.go
+++ b/main.go
@@ -29,10 +29,6 @@ var (
 	lockCh             <-chan struct{}
 )
 
-const (
-	consulTag = "kube2consul"
-)
-
 type kube2consul struct {
 	consulCatalog  *consulapi.Catalog
 	endpointsStore kcache.Store
@@ -48,6 +44,7 @@ type cliOpts struct {
 	lock         bool
 	lockKey      string
 	noHealth     bool
+	consulTag    string
 }
 
 func init() {
@@ -60,6 +57,7 @@ func init() {
 	flag.BoolVar(&opts.lock, "lock", false, "Acquires a lock with consul to ensure that only one instance of kube2consul is running")
 	flag.StringVar(&opts.lockKey, "lock-key", "locks/kube2consul/.lock", "Key used for locking")
 	flag.BoolVar(&opts.noHealth, "no-health", false, "Disable endpoint /health on port 8080")
+	flag.StringVar(&opts.consulTag, "consul-tag", "kube2consul", "Tag setted on services to identify services managed by kube2consul in Consul")
 }
 
 func inSlice(value string, slice []string) bool {
@@ -87,7 +85,7 @@ func (k2c *kube2consul) RemoveDNSGarbage() {
 	}
 
 	for name, tags := range services {
-		if !inSlice(consulTag, tags) {
+		if !inSlice(opts.consulTag, tags) {
 			continue
 		}