feat(contrib/metrics): mark Deprecated

contrib/metrics/README.md

@@ -0,0 +1 @@
+# Deprecated: use otel metrcis instead.

contrib/metrics/datadog/README.md

@@ -0,0 +1 @@
+# Deprecated: use otel metrcis instead.

contrib/metrics/datadog/counter.go

@@ -13,6 +13,7 @@ type counter struct {
 	lvs  []string
 }
 
+// Deprecated: use otel metrcis instead.
 // NewCounter new a DataDog counter and returns Counter.
 // nolint:staticcheck
 func NewCounter(name string, opts ...Option) metrics.Counter {

contrib/metrics/datadog/gauge.go

@@ -13,6 +13,7 @@ type gauge struct {
 	lvs  []string
 }
 
+// Deprecated: use otel metrcis instead.
 // NewGauge new a DataDog gauge and returns Gauge.
 // nolint:staticcheck
 func NewGauge(name string, opts ...Option) metrics.Gauge {

contrib/metrics/datadog/observer.go

@@ -15,6 +15,7 @@ type timing struct {
 	lvs  []string
 }
 
+// Deprecated: use otel metrcis instead.
 // NewTiming new a DataDog timer and returns Observer.
 // nolint:staticcheck
 func NewTiming(name string, opts ...Option) metrics.Observer {

contrib/metrics/prometheus/README.md

@@ -1,2 +1 @@
-# prometheus
-Monitor Prometheus metrics.
+# Deprecated: use otel metrcis instead.

contrib/metrics/prometheus/counter.go

@@ -14,6 +14,7 @@ type counter struct {
 	lvs []string
 }
 
+// Deprecated: use otel metrcis instead.
 // NewCounter new a prometheus counter and returns Counter.
 // nolint:staticcheck
 func NewCounter(cv *prometheus.CounterVec) metrics.Counter {

contrib/metrics/prometheus/gauge.go

@@ -14,6 +14,7 @@ type gauge struct {
 	lvs []string
 }
 
+// Deprecated: use otel metrcis instead.
 // NewGauge new a prometheus gauge and returns Gauge.
 // nolint:staticcheck
 func NewGauge(gv *prometheus.GaugeVec) metrics.Gauge {

contrib/metrics/prometheus/histogram.go

@@ -14,6 +14,7 @@ type histogram struct {
 	lvs []string
 }
 
+// Deprecated: use otel metrcis instead.
 // NewHistogram new a prometheus histogram and returns Histogram.
 // nolint:staticcheck
 func NewHistogram(hv *prometheus.HistogramVec) metrics.Observer {

contrib/metrics/prometheus/summary.go

@@ -14,6 +14,7 @@ type summary struct {
 	lvs []string
 }
 
+// Deprecated: use otel metrcis instead.
 // NewSummary new a prometheus summary and returns Histogram.
 // nolint:staticcheck
 func NewSummary(sv *prometheus.SummaryVec) metrics.Observer {