golang-starter

Eureka integration is deprecated

golang-springboot is a project than implements with spring-cloud-config, eureka and actuator like a springboot implementation

The project parts are:

• actuator - exposes some methods like springboot actuator (/health, /metrics, /env, /info)
• config - connects to "spring cloud config server" and loads the configuration
• eureka - register, deregister and Heartbeat with eureka service

How use it?

we have two options for starting:

• using env vars
• using command line params

env vars

we must export the nexts env vars:

env vars	description	example
spring_profiles_active	spring cloud config profile	test
spring_cloud_config_uri	uri of spring cloud config server	http://127.0.0.1:30606
spring_cloud_config_label	git branch	master
server_port	exposed port	8080
eureka_instance_ip_address	IP of this application, accesible by eureka	10.0.1.5
spring_application_name	name of application	my-golang-application

command line params

we report the following parameters in the same order:

• spring_profiles_active
• spring_cloud_config_uri
• spring_cloud_config_label
• server_port
• eureka_instance_ip_address
• spring_application_name

example:

go run main.go pre http://localhost:8080 pre 8080 10.5.5.10 my-golang-app

Import it in your project

Just download and compile the code. Also you must call the methods for start it

package main

import (
	"github.com/pineda89/golang-springboot/actuator"
	"github.com/pineda89/golang-springboot/config"
	"github.com/pineda89/golang-springboot/eureka"
)

func main() {
	config.LoadConfig()

	go StartWebServer(config.Configuration["server.port"].(int))
	go actuator.InitializeActuator()

	go eureka.Register(config.Configuration)
	CaptureInterruptSignal()
	eureka.Deregister()
}

func StartWebServer(port int) {
	http.HandleFunc("/", mainHandler)
	http.ListenAndServe(":" + strconv.Itoa(port), nil)
}

func mainHandler(w http.ResponseWriter, r *http.Request) {
	io.WriteString(w, service.MyApplicationMethod())
}

func CaptureInterruptSignal() {
	c := make(chan os.Signal, 2)
	signal.Notify(c, os.Interrupt, syscall.SIGTERM)
	<-c
}

This implementation exposes the methods "/", "/info", "/health", "/metrics" and "/env" Also loads configuration from spring cloud config server, and register, deregister and healthcheck on eureka