move aplication of otel metrics wrapper to the executor instead in th…

…e proxy factory to make sure will always be wrapping all other proxy middleares

executor.go

@@ -200,6 +200,10 @@ func (e *ExecutorBuilder) NewCmdExecutor(ctx context.Context) cmd.Executor {
 
 		bpf := e.BackendFactory.NewBackendFactory(ctx, logger, metricCollector)
 		pf := e.ProxyFactory.NewProxyFactory(logger, bpf, metricCollector)
+		// we move the proxy factory out of the default proxy factory to make
+		// sure that is always the outer middleware and that wraps any internal
+		// proxy layer middleware:
+		pf = otellura.ProxyFactory(pf)
 
 		agentPing := make(chan string, len(cfg.AsyncAgents))
 

proxy_factory.go

@@ -3,7 +3,6 @@ package krakend
 import (
 	"fmt"
 
-	otellura "github.com/krakend/krakend-otel/lura"
 	cel "github.com/krakendio/krakend-cel/v2"
 	jsonschema "github.com/krakendio/krakend-jsonschema/v2"
 	lua "github.com/krakendio/krakend-lua/v2/proxy"
@@ -24,7 +23,6 @@ func internalNewProxyFactory(logger logging.Logger, backendFactory proxy.Backend
 	proxyFactory = lua.ProxyFactory(logger, proxyFactory)
 	proxyFactory = metricCollector.ProxyFactory("pipe", proxyFactory)
 	proxyFactory = opencensus.ProxyFactory(proxyFactory)
-	proxyFactory = otellura.ProxyFactory(proxyFactory)
 	return proxyFactory
 }