Add CloudWatch AWS/EKS metrics and dimensions (#242)

Author: jangaraj

pkg/cloudWatchConsts/metrics.go

@@ -770,6 +770,40 @@ var NamespaceMetricsMap = map[string][]string{
 		"StorageBytes",
 		"TotalIOBytes",
 	},
+	"AWS/EKS": {
+		"apiserver_admission_webhook_admission_duration_seconds",
+		"apiserver_admission_webhook_admission_duration_seconds_ADMIT_P99",
+		"apiserver_admission_webhook_admission_duration_seconds_VALIDATING_P99",
+		"apiserver_admission_webhook_rejection_count",
+		"apiserver_admission_webhook_rejection_count_ADMIT",
+		"apiserver_admission_webhook_rejection_count_VALIDATING",
+		"apiserver_admission_webhook_request_total",
+		"apiserver_admission_webhook_request_total_ADMIT",
+		"apiserver_admission_webhook_request_total_VALIDATING",
+		"apiserver_current_inflight_requests_MUTATING",
+		"apiserver_current_inflight_requests_READONLY",
+		"apiserver_request_duration_seconds_DELETE_P99",
+		"apiserver_request_duration_seconds_GET_P99",
+		"apiserver_request_duration_seconds_LIST_P99",
+		"apiserver_request_duration_seconds_PATCH_P99",
+		"apiserver_request_duration_seconds_POST_P99",
+		"apiserver_request_duration_seconds_PUT_P99",
+		"apiserver_request_total",
+		"apiserver_request_total_429",
+		"apiserver_request_total_4XX",
+		"apiserver_request_total_5XX",
+		"apiserver_request_total_LIST_PODS",
+		"apiserver_storage_size_bytes",
+		"scheduler_pending_pods",
+		"scheduler_pending_pods_ACTIVEQ",
+		"scheduler_pending_pods_BACKOFF",
+		"scheduler_pending_pods_GATED",
+		"scheduler_pending_pods_UNSCHEDULABLE",
+		"scheduler_schedule_attempts_ERROR",
+		"scheduler_schedule_attempts_SCHEDULED",
+		"scheduler_schedule_attempts_UNSCHEDULABLE",
+		"scheduler_schedule_attempts_total",
+	},
 	"AWS/ELB": {
 		"BackendConnectionErrors",
 		"EstimatedALBActiveConnectionCount",
@@ -3345,6 +3379,7 @@ var NamespaceDimensionKeysMap = map[string][]string{
 	"AWS/EC2Spot":                        {"AvailabilityZone", "FleetRequestId", "InstanceType"},
 	"AWS/ECS":                            {"ClusterName", "ServiceName"},
 	"AWS/EFS":                            {"FileSystemId", "StorageClass"},
+	"AWS/EKS":                            {"ClusterName"},
 	"AWS/ELB":                            {"AvailabilityZone", "LoadBalancerName"},
 	"AWS/ES":                             {"ClientId", "DomainName", "NodeId"},
 	"AWS/ElastiCache":                    {"CacheClusterId", "CacheNodeId"},