rename CommonTagsInternal to InternalTags (#233)

* rename CommonTagsInternal to InternalTags

m3/config.go

@@ -50,9 +50,9 @@ type Configuration struct {
 	// with the histogram bucket bound values.
 	HistogramBucketTagPrecision uint `yaml:"histogramBucketTagPrecision"`
 
-	// CommonTagsInternal are tags that should be added to all internal metrics
+	// InternalTags are tags that should be added to all internal metrics
 	// emitted by the reporter.
-	CommonTagsInternal map[string]string `yaml:"commonTagsInternal"`
+	InternalTags map[string]string `yaml:"internalTags"`
 }
 
 // NewReporter creates a new M3 reporter from this configuration.
@@ -70,6 +70,6 @@ func (c Configuration) NewReporter() (Reporter, error) {
 		MaxPacketSizeBytes:          c.PacketSize,
 		IncludeHost:                 c.IncludeHost,
 		HistogramBucketTagPrecision: c.HistogramBucketTagPrecision,
-		InternalTags:                c.CommonTagsInternal,
+		InternalTags:                c.InternalTags,
 	})
 }

m3/config_test.go

@@ -42,7 +42,7 @@ func TestConfigSimple(t *testing.T) {
 	assert.True(t, ok)
 	assert.True(t, tagEquals(reporter.commonTags, "service", "my-service"))
 	assert.True(t, tagEquals(reporter.commonTags, "env", "test"))
-	assert.Equal(t, 0, len(c.CommonTagsInternal))
+	assert.Equal(t, 0, len(c.InternalTags))
 }
 
 func TestConfigMulti(t *testing.T) {