How to Deploy a Go Web Application on AWS

Table of Contents

  1. Introduction
  2. Prerequisites
  3. Setup
  4. Create a Go Web Application
  5. Deploy the Go Web Application on AWS
  6. Conclusion

Introduction

In this tutorial, we will learn how to deploy a Go web application on AWS. By the end of this tutorial, you will be able to host your Go web application on the Amazon Web Services (AWS) platform.

Prerequisites

Before starting this tutorial, you should have the following:

  • Basic understanding of Go programming language
  • AWS account with proper permissions to create and manage resources

Setup

To begin, make sure you have the AWS Command Line Interface (CLI) installed on your local machine. You can install the AWS CLI by following the official documentation for your operating system.

Once the AWS CLI is installed, you need to configure it with your AWS credentials. Run the following command in your terminal and provide your Access Key ID, Secret Access Key, and region when prompted:

$ aws configure

Create a Go Web Application

Let’s start by creating a simple Go web application that we can deploy on AWS.

  1. Create a new directory for your Go project:

    ```
$ mkdir go-web-app
$ cd go-web-app
```

  2. Initialize a new Go module:

    ```
$ go mod init example.com/go-web-app
```

  3. Create a new file named main.go and add the following code:

    ```go
package main

import (
    "fmt"
    "log"
    "net/http"
)

func main() {
    http.HandleFunc("/", handler)
    log.Fatal(http.ListenAndServe(":8080", nil))
}

func handler(w http.ResponseWriter, r *http.Request) {
    fmt.Fprintf(w, "Hello, World!")
}
```

  4. Build the application:

    ```
$ go build
```

  5. Test the application locally:

    ```
$ ./go-web-app
```

You should see the message "Hello, World!" when you visit `http://localhost:8080` in your browser.

Deploy the Go Web Application on AWS

Now that we have our Go web application ready, let’s deploy it on AWS.

  1. Create an Elastic Beanstalk application:

    ```
$ aws elasticbeanstalk create-application --application-name go-web-app
```

  2. Create an environment for your application:

    ```
$ aws elasticbeanstalk create-environment --application-name go-web-app --environment-name go-web-app-env --solution-stack-name "64bit Amazon Linux 2 v1.0.8 running Go 1.14"
```

  3. Zip the application files:

    ```
$ zip go-web-app.zip go-web-app
```

  4. Deploy the application to AWS Elastic Beanstalk:

    ```
$ aws elasticbeanstalk create-application-version --application-name go-web-app --version-label v1 --source-bundle S3Bucket="your-bucket-name",S3Key=go-web-app.zip
```

  5. Update the environment to use the new application version:

    ```
$ aws elasticbeanstalk update-environment --environment-name go-web-app-env --version-label v1
```

  6. Wait for the environment to update and become healthy:

    ```
$ aws elasticbeanstalk describe-environments --environment-names go-web-app-env
```

Ensure the `Status` is `Ready` and the `Health` is `Ok` before proceeding.

  7. Access your Go web application:

    ```
$ aws elasticbeanstalk describe-environments --environment-names go-web-app-env | grep CNAME
```

Copy the value of the `CNAME` field and paste it into your web browser. You should see "Hello, World!" displayed.

    Congratulations! You have successfully deployed your Go web application on AWS using Elastic Beanstalk.

Conclusion

In this tutorial, we learned how to deploy a Go web application on AWS using Elastic Beanstalk. We started by creating a simple Go web application and then went through the steps to deploy it on AWS. Now you can host your Go web applications on AWS and take advantage of its scalability and reliability.

Published:

Related Articles