Deploy Go applications on k8s via Minikube

In this post we will learn how to deploy two different Go applications on kubernetes and use them outside cluster via minikube

Pre-requisite

1. Minikube cluster
2. Docker
3. 2 different Go applications
4. Kubectl

How to start minikube cluster ?

First of all create a virtual machine names as sample-docker-machine.

docker-machine create --driver virtualbox sample-docker-machine 

Then get the IP address of this docker machine

docker-machine ip sample-docker-machine

Now we use this IP address to start the minikube cluster .

minikube start --vm-driver="virtualbox" --insecure-registry="<docker-machine ip address>":80

In this way our minikube cluster is started.

Create Go Applications

Lets create 2 different Go application.

1. start-repo
2. go-docker

Lets discuss first about start-repo

create one main file names as main.go

package main
import (
    "encoding/json"
    "log"
    "net/http"
    "github.com/gorilla/mux"
)
type Person struct {
    ID        string   `json:"id,omitempty"`
    Firstname string   `json:"firstname,omitempty"`
}
func GetPong(w http.ResponseWriter, req *http.Request) {
    abc := Person{ID : "123",}
    w.Header().Set("Content-Type", "application/json")
    w.WriteHeader(http.StatusOK)
    json.NewEncoder(w).Encode(abc)
}
func main() {
    router := mux.NewRouter()
    router.HandleFunc("/", GetPong).Methods("GET")
    log.Fatal(http.ListenAndServe(":8080", router))
}