Add otel middleware for OpenTelemetry instrumentation

remove Jaeger middleware reference

Author: aldas

website/docs/middleware/jaeger.md

@@ -0,0 +1,67 @@
+---
+description: Open-telemetry middleware
+---
+
+# Open-telemetry
+
+Echo-opentelemetry is a middleware for Echo framework that provides OpenTelemetry instrumentation for HTTP requests.
+https://github.com/labstack/echo-opentelemetry
+
+Open-telemetry is a set of open-source tools that provide instrumentation for cloud native applications. 
+* [OpenTelemetry HTTP spec](https://opentelemetry.io/docs/specs/semconv/http/)
+* [HTTP metrics spec](https://opentelemetry.io/docs/specs/semconv/http/http-metrics/)
+
+
+
+## Usage
+
+Add OpenTelemetry middleware dependency with go modules
+
+```bash
+go get github.com/labstack/echo-opentelemetry
+```
+
+Use as an import statement
+
+```go
+e.Use(echootel.NewMiddlewareWithConfig(echootel.Config{
+    ServerName:          "my-server",
+    TracerProvider:      tp,
+    
+    //Skipper:             nil,
+    //OnNextError:         nil,
+    //OnExtractionError:   nil,
+    //MeterProvider:       nil,
+    //Propagators:         nil,
+    //SpanStartOptions:    nil,
+    //SpanStartAttributes: nil,
+    //SpanEndAttributes:   nil,
+    //MetricAttributes:    nil,
+    //Metrics:             nil,
+}))
+```
+For configuration options documentation see [Config](https://github.com/labstack/echo-opentelemetry/blob/main/otel.go#L28) struct.
+
+Add middleware in simplified form, by providing only the server name
+
+```go
+e.Use(echootel.NewMiddleware("app.example.com"))
+```
+
+Add middleware with configuration options
+
+```go
+e.Use(echootel.NewMiddlewareWithConfig(echootel.Config{
+  TracerProvider: tp,
+}))
+```
+
+Retrieving the tracer from the Echo context
+```go
+tp, err := echo.ContextGet[trace.Tracer](c, echootel.TracerKey)
+```
+
+## Example
+
+https://github.com/labstack/echo-opentelemetry/blob/main/example/main.go
+

website/docs/middleware/open-telemetry.md

@@ -4,19 +4,13 @@ description: Prometheus metrics middleware
 
 # Prometheus
 
-:::note
-
-Echo community contribution
-
-:::
-
 Prometheus middleware generates metrics for HTTP requests. 
 
-https://github.com/labstack/echo-contrib/blob/master/echoprometheus/prometheus.go
+https://github.com/labstack/echo-prometheus
 
 ## Usage
 
-- Add needed module `go get -u github.com/labstack/echo-contrib/v5`
+- Add needed module `go get -u github.com/labstack/echo-prometheus`
 - Add Prometheus middleware and metrics serving route
     ```go
     e := echo.New()
@@ -34,7 +28,7 @@ package main
 import (
 	"net/http"
 
-	"github.com/labstack/echo-contrib/v5/echoprometheus"
+	echoprometheus "github.com/labstack/echo-prometheus"
 	"github.com/labstack/echo/v5"
 )
 
@@ -116,7 +110,7 @@ package main
 import (
 	"log"
 
-	"github.com/labstack/echo-contrib/v5/echoprometheus"
+	echoprometheus "github.com/labstack/echo-prometheus"
 	"github.com/labstack/echo/v5"
 	"github.com/prometheus/client_golang/prometheus"
 )
@@ -156,7 +150,7 @@ package main
 import (
 	"log"
 
-	"github.com/labstack/echo-contrib/v5/echoprometheus"
+	echoprometheus "github.com/labstack/echo-prometheus"
 	"github.com/labstack/echo/v5"
 	"github.com/prometheus/client_golang/prometheus"
 )
@@ -203,7 +197,7 @@ import (
 	"net/http"
 	"strings"
 
-	"github.com/labstack/echo-contrib/v5/echoprometheus"
+	echoprometheus "github.com/labstack/echo-prometheus"
 	"github.com/labstack/echo/v5"
 )
 
@@ -240,7 +234,7 @@ package main
 import (
 	"net/http"
 
-	"github.com/labstack/echo-contrib/v5/echoprometheus"
+	echoprometheus "github.com/labstack/echo-prometheus"
 	"github.com/labstack/echo/v5"
 	"github.com/prometheus/client_golang/prometheus"
 )