[target-allocator] Use gin in release mode and without default logg…

…er middleware (#1414)

* Use gin in release mode and without default logger middleware

Signed-off-by: Matej Gera <matej.gera@coralogix.com>

* Add changelog

Signed-off-by: Matej Gera <matej.gera@coralogix.com>

---------

Signed-off-by: Matej Gera <matej.gera@coralogix.com>

.chloggen/1414-adjust-gin-config.yaml

@@ -0,0 +1,16 @@
+# One of 'breaking', 'deprecation', 'new_component', 'enhancement', 'bug_fix'
+change_type: enhancement
+
+# The name of the component, or a single word describing the area of concern, (e.g. operator, target allocator, github action)
+component: "target allocator"
+
+# A brief description of the change. Surround your text with quotes ("") if it needs to start with a backtick (`).
+note: "Configure `gin` router to be used in release mode and do not use the default logging middleware which is noisy and not formatted properly."
+
+# One or more tracking issues related to the change
+issues: [1352]
+
+# (Optional) One or more lines of additional information to render under the primary note.
+# These lines will be padded with 2 spaces and then inserted directly into the document.
+# Use pipe (|) for multiline entries.
+subtext:

cmd/otel-allocator/server/server.go

@@ -67,7 +67,9 @@ func NewServer(log logr.Logger, allocator allocation.Allocator, listenAddr *stri
 		allocator: allocator,
 	}
 
-	router := gin.Default()
+	gin.SetMode(gin.ReleaseMode)
+	router := gin.New()
+	router.Use(gin.Recovery())
 	router.UseRawPath = true
 	router.UnescapePathValues = false
 	router.Use(s.PrometheusMiddleware)