I have created a Kubernetes clusters with sample Spring Boot application and it works well from public ip. Now I want to access the end point of Spring boot in Kubernetes clusters. I have already followed the tutorial from Google for Configuring Serverless VPC Access. (https://cloud.google.com/vpc/docs/configure-serverless-vpc-access?hl=bg). I have created the Serverless VPC access and used in one of cloud function.

Now my problem is, how can I connect the internal ip of Kubernetes clusters from my cloud function?. I have written code in Go.

package p

import (
    "fmt"
    "io/ioutil"
    "net/http"
)

func HelloWorld(w http.ResponseWriter, r *http.Request) {
    fmt.Println("Starting the application...")

    response, err := http.Get("http://10.59.247.177:47002/")
    if err != nil {
        fmt.Fprint(w, "The HTTP request failed with error %s\n", err)
    } else {
        data, _ := ioutil.ReadAll(response.Body)
        fmt.Fprint(w, string(data))
    }
}

But I am getting error: The HTTP request failed with error %s Get http://10.59.247.177:47002/: dial tcp 10.59.247.177:47002: i/o timeout