Make log level configurable via Helm chart parameter

cmd/main.go

@@ -15,7 +15,7 @@ func main() {
 	metrics.Use(router)
 
 	router.GET("/api/v1/gin", func(c *gin.Context) {
-		c.String(http.StatusOK, "Hello " + os.Getenv("USERNAME") + " from " + os.Getenv("MY_POD_NAME"))
+		c.String(http.StatusOK, "Hello " + os.Getenv("USERNAME") + " from " + os.Getenv("MY_POD_NAME") + " with log level " + os.Getenv("LOG_LEVEL"))
 	})
 
 	router.Run(":8000")

templates/deployment.yaml

@@ -36,6 +36,8 @@ spec:
           securityContext: # container tase
             readOnlyRootFilesystem: true
           env:
+            - name: LOG_LEVEL
+              value: {{ .Values.logLevel }}
             - name: USERNAME
               value: {{ .Values.username }}
             - name: MY_POD_NAME

values.yaml

@@ -1 +1,2 @@
 username: world
+logLevel: info