review change - use aws.tags as tag prefix

Signed-off-by: Kavindu Dodanduwa <[email protected]>

Author: Kavindu-Dodan

libbeat/processors/add_cloud_metadata/docs/add_cloud_metadata.asciidoc

@@ -106,8 +106,8 @@ Please refer official documentation on https://docs.aws.amazon.com/AWSEC2/latest
 [source,json]
 -------------------------------------------------------------------------------
 {
-  "ec2": {
-    "tag": {
+  "aws": {
+    "tags": {
       "org" : "myOrg",
       "owner": "userID"
     }

libbeat/processors/add_cloud_metadata/provider_aws_ec2.go

@@ -41,7 +41,7 @@ import (
 const (
 	eksClusterNameTagKey = "eks:cluster-name"
 	tagsCategory         = "tags/instance"
-	tagPrefix            = "ec2.tag"
+	tagPrefix            = "aws.tags"
 )
 
 type IMDSClient interface {

libbeat/processors/add_cloud_metadata/provider_aws_ec2_test.go

@@ -208,8 +208,8 @@ func TestRetrieveAWSMetadataEC2(t *testing.T) {
 						"id":   fmt.Sprintf("arn:aws:eks:%s:%s:cluster/%s", regionDoc1, accountIDDoc1, clusterNameValue),
 					},
 				},
-				"ec2": mapstr.M{
-					"tag": mapstr.M{
+				"aws": mapstr.M{
+					"tags": mapstr.M{
 						eksClusterNameTagKey: clusterNameValue,
 					},
 				},
@@ -247,8 +247,8 @@ func TestRetrieveAWSMetadataEC2(t *testing.T) {
 						"id":   fmt.Sprintf("arn:aws:eks:%s:%s:cluster/%s", regionDoc1, accountIDDoc1, clusterNameValue),
 					},
 				},
-				"ec2": mapstr.M{
-					"tag": mapstr.M{
+				"aws": mapstr.M{
+					"tags": mapstr.M{
 						eksClusterNameTagKey: clusterNameValue,
 					},
 				},
@@ -295,8 +295,8 @@ func TestRetrieveAWSMetadataEC2(t *testing.T) {
 						"id":   fmt.Sprintf("arn:aws:eks:%s:%s:cluster/%s", regionDoc1, accountIDDoc1, clusterNameValue),
 					},
 				},
-				"ec2": mapstr.M{
-					"tag": mapstr.M{
+				"aws": mapstr.M{
+					"tags": mapstr.M{
 						eksClusterNameTagKey: clusterNameValue,
 					},
 				},
@@ -379,8 +379,8 @@ func TestRetrieveAWSMetadataEC2(t *testing.T) {
 						"id":   fmt.Sprintf("arn:aws:eks:%s:%s:cluster/%s", regionDoc1, accountIDDoc1, clusterNameValue),
 					},
 				},
-				"ec2": mapstr.M{
-					"tag": mapstr.M{
+				"aws": mapstr.M{
+					"tags": mapstr.M{
 						eksClusterNameTagKey: clusterNameValue,
 						customTagKey:         customTagValue,
 					},