feat: add index route

kustomize/base/deployment.yml

@@ -47,6 +47,7 @@ spec:
             runAsGroup: 65534
             runAsNonRoot: true
             runAsUser: 65534
+      initContainers: []
       securityContext:
         fsGroup: 65534
         fsGroupChangePolicy: Always

main.go

@@ -9,6 +9,12 @@ import (
 func main() {
 	r := gin.Default()
 
+	r.GET("/", func(c *gin.Context) {
+		c.JSON(http.StatusOK, gin.H{
+			"message": "Hello, World!",
+		})
+	})
+
 	r.GET("/ping", func(c *gin.Context) {
 		c.JSON(http.StatusOK, gin.H{
 			"message": "pong",